Sardinia in September: climate, temperatures, reasons to come on vacation in the ideal month

September Weather in Sardinia: A Comprehensive Guide

As a Sardinian local and travel expert, I have encountered innumerable Septembers on this marvelous island. Let me, therefore, reveal my personal experiences on the weather during this glorious month to you.

September Climate in Sardinia: North, Central, and South

As someone from Sardinia, I have lived in different places on the island and I can confirm to you that September is one of the silliest months to come to our beautiful land. The summer crowds have been dispersed, and the weather is just perfect to explore everything that Sardinian has to give.

In the North of Sardinia, that’s where the majority of the population spent their summer’s, September brings with it a nice breeze in the days. The weather is still quite warm, with temperatures at about 25°C (77°F), which is a great opportunity for the beaches. During the evenings, it may cool down a bit, especially in the beach areas such as Costa Smeralda, where you might as well have a light jacket at the ready. In fact the water at sea is still warm due to the summer heat ensuring swimming and water activities are very enjoyable.

Central Sardinia, where I was staying for many years, is the place that got through a mild September. The inland areas such as Gennargentu mountains, start to produce cool conditions, varying from the daytime temperature of 22-24°C (72-75°F). It’s a great time for hiking and discovering the harsher of the island. I can still remember all the days in September I had, and we went on the trek together with the hiking clubs, walking through the beautiful forested areas, splurging the enjoyable weather and the clear sky.

Southern Sardinia, which contains the main city Cagliari, tends to keep the temperature of late summer a bit longer. Here September is known to be sunny, with temperatures ranging from 27-28°C (81-82°F). The coastline still holds the sunbathers, while on the other hand, less populated areas give the opportunity for more people to swim. My evenings in Cagliari during September were always fun when the warm air was available long into the night and I could dine out in the open.

Islandwide, September’s lesser mugginess and a smaller number of rainy days are what it is best known for in comparison with the months of fall. It’s a time when it’s just perfect to visit the pretty places of Sardinia – from the gold beaches to the rocky mountains – because the sun’s heat is not that high. Being a nearby, September is like my best suggestion for having extraordinary times in our island phenomenon, as it gives the thrilling combination of mild sun, iconic cultural crafts, and natural beauty.

Temperature and Rainfall

The weather in Sardinia is pleasantly warm in September. The average temperature varies between 18°C (64°F) at night and 27°C (81°F) during the day with a standard deviation of 4. I find that to be the best time of the year for our white sand beaches and the beautiful towns where walking is not so tiring as the weather in the summer can be really hot.

Rain is almost rare in September. Probably we anticipate to have only 3-4 rainy days during the month. I have some memories of those September months where we barely catch one or two drops of rain!

Sea Temperature & Swimming

Yes, the sea is, indeed, too warm for swimming in September! Following the summer sun, the sea will take on the temperature of around 23-24°C (73-75°F). Generally, I cannot but feel the best when these swims are devoted after the year.

Regional Weather Variations

Basically, the southern coast, particularly around Cagliari, is the most stable weather in September. Nonetheless, the entire island usually experiences excellent weather this month.

The coastal areas are largely warmer than the inland ones and that too especially in the night. I believe the difference is around 2-3°C. The sea winds also keep the coast cooler during hot days.

Wind and UV Index

September is often dominated by pleasant light winds that are optimal for sailing or windsurfing. The stinging Mistral winds are not frequent during the summer.

The summer UV index is persistent and lies around 6-7 in September. I typically​ advise my guests to carry some sun protection even though it’s not as hot as in August.

Day vs. Night Temperatures

Day and night temperatures differ from one another. Almost every time the difference is about 8-10°C. This is a favorite of mine as it means sunnier days and not so cold evenings, and I can even go without a jacket after dark.

September vs. August Weather

Actually, September is a much more pleasant month than August. It’s not as crowded, it’s not so hot, and there’s not that much humidity in the air. In my case, I, as well as September, are my top choices for my activities outdoors.

Clothing Recommendations

It is recommended to pack thin, breathable, and light clothing, and a jacket/sweater for evenings. Don’t miss the opportunity to go swimming; let your beachwear pack include the best when you are at the seaside in September!

Air Conditioning and Accommodations

While it is not always a requirement, air conditioning can be quite convenient, particularly the first couple of days of September or if you’re not very familiar with Mediterranean weather.

Daylight Hours

You will experience sunshine of at least 12-13 hours in September. The average sunrise and sunset times oscillate between 7:00 AM and 7:30 PM depending on the days, making them perfect for an outdoor adventure.

Humidity Levels

September has lower humidity levels than the previous months, which provides a more comfortable environment for exploring.

Outdoor Activities

September is a perfect time of the year for doing exercises such as trekking, cycling, and then playing water festivals. I usually take my visitors on a trip to a boat or a hiking route at this time of the month.

Storms and Precautions

In our country, even if it’s not very frequent, we can still observe thunderstorms sometimes in September, particularly in the last ten days of it. It’s a good idea to check the forecast for outdoor plans.

Climate Change Effects

Some of the changes during the years that we’ve observed include September at times being warmer and drier than it used to be. Yet, it is still a very pleasant month for touring.

Tourist Season

September is indeed the shoulder season. One can be at his/her best in weather yet the crowds will not be so corrupting to the peaceful environment that one can sleep, and one can be glad, with the families having mostly left and the students soon returning to school!

Water Visibility for Snorkeling/Diving

In September, visibility in the water can be as good as 20-30 meters on many occasions. This is a great time for scuba diving and snorkelling in Sardinia.

Beach Conditions

The beaches are all great throughout September. Most of the people have left so the beaches are peaceful and the sun is warmer than it was in August.

Morning vs. Afternoon Temperatures

In the morning, the temperature stays around 20-22°C, while in the afternoon, it can go up to 27-28°C. I suggest you start activities early to avoid the strong sunshine.

Weather Forecasts

The weather predictions for Sardinia in September are almost always correct, even though, then again, and still, one must be aware that island summers can quite often change suddenly.

Impact on Local Events

There are a lot of local festivals in September that are organized especially because of the milder conditions. The wine crop also kicks off this month, which is a primary event in almost all Sardinian towns.

Hiking Conditions

September is definitely the best season for hiking. It’s not too hot and the place is very beautiful after the summer ends and the landscape becomes more picturesque.

Cloud Cover

As a general rule, there are more sunny days than cloudy ones in September. Usually, about 70% of the whole period is sunny or mostly sunny.

North vs. South Weather

The south is generally a bit warmer and more likely to be dry, although the differences are a trifle in September. Both sections are great for a holiday.

Travel Planning

The consistent weather of September makes it a lot simpler to plan several outdoor activities and places to visit. It is, therefore, a great time to seize the opportunity to visit the coast and the inland areas of Sardinia.

Is September a Good Time to Visit Sardinia? – A Comprehensive Analysis

Being a Sardinian local and a travel expert, I can say that September is the best time of the year to visit our beautiful island. Here’s a detailed breakdown of why:

Key Advantages of Visiting in September

1. Optimal Weather Conditions

• Pleasant temperatures: The mean daily temperature in September would be 25-26°C (77-79°F), thus it is fine for outside activities and sightseeing. This is the time when I feel the happiest while taking the coast walks for a longer time.
• Warm sea temperatures: The sea water is still 23°C (73.40°F) which is a warm temperature suitable for swimming. As for me, I am greatly pleased with the crystal clear waters of Costa Smeralda in September and I take it for granted.
• Low rainfall: We generally only have 5 days of rain in September, which we are rarely affected by as it doesn’t interrupt our travel plans for most of the rain days.
• Sufficient sunshine: We usually have 8-9 hours of sunshine each day and the sky is not well-covered by the clouds. Hence, there is a cool atmosphere for beach games and exploration in the outdoors.

2. Tourist Experience

• Reduced crowd: The crowds are gone after the summer season, and you can concentrate more on your most loved sights and places of attraction. I should say that the difference is clear and there is now a good atmosphere, at the point known as La Pelosa.
• Relaxing atmosphere: Beaches and restaurants now function in a laid-back mood giving visitors a more authentic Sardinian experience.
• Improved dining experiences: You can always book tables without long waits at popular restaurants. For example, I always recommend having a meal at the local trattorias in this season to obtain a taste of the real Sardinia.
• Increased filming possibilities: The clearer skies and the lesser number of people in the surroundings will ensure that September is the best time to take the Sardinian’s performance.

3. Cost Benefits

• Cheaper accommodation rates: In general, you have to reckoon approximately 40 percent less for the hotels and other vacation rentals than in August.
• Cutback on transportation costs: Generally, in September, the ticket prices for airplanes and ferries are lower than the other months.
• Far superior value: From activities to dining, your money goes far in september.

4. Activities and Events

• Getting good results with beach activities and water sports during this period: The weather favors every beach activity, from snorkeling to windsurfing.
• Nice weather for hiking: The temperatures in the middle of the month of September are much milder compared to other periods in the summer, and the best time to explore the mountains of Sardinia.
• Cultural festivals: Among the events, you can go to the Corsa degli Scalzi in Cabras, the Autunno in Barbagia festival, and the Festa Sant Miquel in Alghero.

Potential Considerations

• Some facilities may be reducing their working hours after mid-September, but most of the tourism infrastructure are still available.
• There’s a slight increase in rainfall possibility late in the month, but it will be short and will not impede plans.
• Summertime close down starts for some tourist services, but you can still visit the island.

How do September temperatures compare to peak summer months?

September has a milder climate than the summer but still, it can get very hot too. The hottest months in the summer can have up to 35°C (95°F) temperatures, while September has temperatures ranging from 25-26°C (77-79°F) and is, thus, more enjoyable to practice outdoor activities.

What is the typical UV index in September?

The typical UV index in September is between 6 and 7, which is considered very high. Sunscreen is still necessary, however, the intensity is lower than in the case of figuration months.

How does rain affect the plans of the vacationers?

The number of rainy clays September is experiencing is not impacting the vacation plans of travelers a lot as there are only about five of them. To be exact, the relatively scarce, if any, of rainfall can be appreciated as a lovely shade from the midday sun.

When do evening temperatures start to cool?

During the evening of September, temperatures usually decrease to about 18-23°C (64-68°F) after sunset. This is quite a comfortable atmosphere for evening walks or dinners.

What is the regional difference in the weather across Sardinia?

Firstly, the areas, which are located to the north, tend to be cooler as they are more exposed to the winds while the southern parts still are heated. Also, inland cooling is more extensive than it is on the coast side.

Beach & Water Activities

Which beaches are best to visit in September?

Actually in September all Sardinian beaches are beautiful. Some of them that I personally like are Spiaggia della Pelosa(northwest), Cala Goloritzè(east), and Chia(south). They have fewer people but are just as beautiful as they used to be.

What water sports are available during this period?

September is the period suited for all types of water sports. The activities commonly practiced are snorkeling, diving, windsurfing, kitesurfing, and sailing. The reason being, that there is the warmth of the water and the winds are particularly blowy to the wind-based sports.

How crowded are popular beach destinations?

Famous beaches, which are on the whole less crowded than during high season. Most of the facilities there offer enough space for rest and enjoyment of the scene.

What are the best times for swimming?

With an average fall of 23°C (73.4°F) the sea temperature allows swimming all day round. Bright sunny mornings and evenings are the best moments.

Are beach facilities still fully operational?

Mentioned parts of the beach remain largely in operation through September, particularly in a thick tourist area. Some may reduce their working hours later in the month, however still numerous services are left.

Transportation & Logistics

What are the best transportation options in September?

Getting a car is the still the best way of moving around but not only in September. At only some places, where it is not as frequent as during summer months, public transport buses are available.

How do flight prices compare to other months?

Typically, flights in July cost some 20-30% more than in August, so, basically, at the end of the day, one traveling in this month can save money as well.

Is car rental necessary during this period?

Consequently, although it isn’t compulsory, renting a car is undoubtedly the best option for tourists who want to explore the whole island especially where the public buses are not so frequent.

What are the ferry schedules like?

Ferry times are fewer when compared to the August high season but still run as always. Therefore, checking and booking in time is what is recommended.

How accessible are remote locations?

A remote area is easily accessible in September as well as the lower number of visitors makes it the best time for fans of non-touristic spots to explore, off the beaten path.

Accommodation

What types of accommodation offer the best value?

Among the places where you can get the best comfort for the money, you are in the middle of Agriturismo (farm stays), and the private little hotels are the best. It is also possible to come across beach apartments at a price that you only dream about in high season.

Which area(s) are recommended for staying?

The North-east of the Costa Smeralda area, the north of Alghero, and the south of Chia are the ideal locations for this particular time of the year. They provide the best mix of convenience and nature.

How far in advance should bookings be made?

September might be the off-season of tourism compared to other months but it would still be wise to make your reservations for 1-2 months to get the cheapest room and best last minutes deals.

Are all hotels still open in September?

Most of the hotel buildings are sold out in September, of course, those which belong to the touristic areas of the island. Smaller guesthouses might be shut slightly ahead of the main season at the end of the month.

What are the price differences compared to peak season?

In some lodging places, you can expect to pay 30-40% less in September than in August. So, the benefits are numerous.

Activities & Events

Which festivals occur in September?

Center stage fall the Corsa degli Scalzi in Cabras, Autunno in Barbagia that normally kicks off in September and the Festa Sant Miquel in Alghero. Such events are really quick looks at the Sardinian way of life.

What are the best hiking trails for this time of year?

September is one of the best times for hiking. Apart from that, I would pick De Cusidore on the Golgo Plateau, Capo Bosco, and Tavolara at Golfo Orosei for little walks around nature and human history.

Are guided tours still available?

The most overlooked tours are the guided trips in September. There is perfect no time better than the present for wine tours, food experiences, and historic site visits.

What cultural activities are recommended?

Embark on a voyage to the archaeological exhibits of the nuraghe, meander through the traditional villages of the Barbagia region and dare to delve into the food &wine fairs with the possible appearance of Sardinian flavors.

Which historical site(s) should be prioritized?

It’s absolutely worth taking a tour of Su Nuraxi di Barumini UNESCO site, visiting the ancient city of Nora near Pula, and witnessing the Catalan touched scenery in the old town of Alghero since your tour will be quite educative and beneficial for your knowledg

What should be packed for a September visit?

Bring some light clothes, a light coat for the evening, comfy walking shoes, and, of course, swimming gear, and sun protection.

Are restaurants and shops operating normal hours?

Most of the restaurants, and shops work their regular hours throughout September, especially in the tourist area. However, the end of the month might be characterized, with more places, which have a shorter schedule.

What is the tourist demographic in September?

In September, couples, older travellers and families with kids are the most frequent visitors. There are also fewer large groups and younger tourists than in the peak months.

How does the local lifestyle differ from peak season?

Typically, September is the month when locals get back from their holidays, which leads to a more relaxed environment. During this time, you will interact more with the indigenous Sardinians.

What emergency services are available during shoulder season?

You can expect to find emergency services at full function during September, most of them being 24/7. Notwithstanding that, tourist-friendly services might be operating at reduced capacity.

It’s pretty secure for me to say that, with all the September I have spent on this scenic island, I see it as one of the best times to visit Sardinia. The relationship of moderate weather, less crowd, lower prices, and the continuation of most activities and events is the perfect environment for exploration and relaxation. In one sentence, September is a sublime time that can give you the goodness of Sardinia without having the hustle and bustle of the high season, regardless, if you are a fan of sun and sea, interested in exploring the local culture or a bit of adventure, Sardinia in September is an unforgettable experience.

Costa Rei: The Perfect September Getaway

Costa Rei is a very popular vacation destination in Sardinia. The climate is clear and warm in all the days in September, and there is no expected rain which makes the period of September become the perfect time for holiday. The coastline of Costa Rei is so inviting that it begs you to go and enjoy it. I have been to several other places before and I must say that September in Costa Rei is the best time to visit. The temperatures of the area are not the ones that make the place difficult to visit. One can enjoy warm, sunny days, which is perfect for beach activities without being scorched by the heat and it is mostly around 25°C to 20°C. The Mediterranean Sea is the warmest at the end of summer, and many people enjoy swimming or snorkeling at the beach. Besides the beach, other things are always extra like this that start happening in the center of the mainland especially in the colder months.

The abundance of remote beaches and crystal-clear waters that are not crowded in September is definitely the reason to visit Costa Rei. I have been walking along the 8-kilometer beachfront sometimes and I was really amazed that I was almost the only person in whole areas. The fewer tourists in the location makes it is possible to really see the beauty in a way people are never overwhelmed. From beginners to experts, visitors will find a lot of water activities they can do at Costa Rei, from gently swimming and snorkeling to more daring undertakings like windsurfing and kayaking. Besides, I had so much fun renting a stand-up paddleboard that I was able to use to go around the edge of the beach, and along these lines, I was able to discover some rare bays and seashores, which are often too crowded to go to before.

The attractiveness of the beaches of Costa Rei is not the only thing that makes it appealing. You will never go wrong with a September hike of the open land the nature reserves with places like the rich Mediterranean flora, the mountain tops, and the daunting cliffs on the island. One of the things I added to my “to do” list last time was walking the Sette Fratelli Mountain Range which is at a higher altitude and therefore cooler temperatures make the air ideal for hiking. The views from this altitude are almost unbelievable, giving the visitor a panoramic sweeping of the coast and the glittering sea beyond the land. For the nature enthusiasts, the Colostrai pond, a protected area just north of Costa Rei is the place to be. I have there witnessed the wild animals in their natural environment.

In Costa Rei, September is the time of the holidays for getting to know the local culture. The Festa di San Nicola is a festival of Muravera that I visited in the beginning of the month. It is a vibrant celebration where I’ve experienced traditional Sardinian music, dance, and food in real life. I met only a few other tourists, so that I could spend more time with the locals and we would have good conversations. I also remember the name of the restaurants that are managed by families who cooked fresh fish for me and passionately presented me with the wine they have made from the vineyards close to them. The time of the year in September is certainly much more leisurely and, in that way, more pleasant to experience the Sardinian people’s way of life, the warmth, and the local cuisine produced.

Ultimately, there are practical reasons that give a greater experience when I have visited Costa Rei in September. It is always wise to plan the holiday between June and September, the most active period of the year, allowing tourists to stay for longer or reserve more luxurious accommodations. Guaranteed entry is easier, too, due to the smaller crowds. Besides, traveling is also at ease since there is no rush during transportation be it car rental or using public buses where one can explore neighboring cities like Villasimius, or even the in-city historical site of Cagliari. As the sun goes down on a picturesque Costa Rei, I always feel that September is just the perfect time to get to see the best of Sardinia – such as the natural beauty, the culture excitement, and a tranquil lifestyle.