Sardinia weather

Our guide to the weather in Sardinia during September

25

Average high

5

UV Index

87mm

Monthly rainfall

24

Sea temperature

Sardinia is a stunning Mediterranean island with plenty of activities for travelers, from beach days to exploring archaeological sites. September is a great time to visit as the weather is still warm and sunny. We've looked at the most up-to-date weather data for Sardinia, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Sardinia weather in September.

How warm is it in Sardinia during September?

The temperature reaches around 25℃ during the daytime in September, falling away to 14℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.

Does it rain in Sardinia during September?

On average, there will be 5 rainy days during the month, amounting to 87.0mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Sardinia during September?

You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in September. With moderate humidity and mild air temperatures, the breeze will have a slight cooling effect.

How warm is the sea in Sardinia during September?

The water temperature around Sardinia reaches a pleasant 24℃ during September. While generally considered warm, some people might find it a little on the cool side on entering the water.

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Weather in Sardinia

Our month-by-month guide to the weather and climate in Sardinia

10.8

Sardinia weather in

January
11.6

Sardinia weather in

February
13.9

Sardinia weather in

March
17.6

Sardinia weather in

April
21.6

Sardinia weather in

May
27.3

Sardinia weather in

June
30.9

Sardinia weather in

July
31.0

Sardinia weather in

August
25.4

Sardinia weather in

September
21.2

Sardinia weather in

October
15.6

Sardinia weather in

November
12.2

Sardinia weather in

December