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Sardinia weather in September 2025
Expect 26°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Sardinia in September. Check more long-term weather averages for Sardinia in September before you book your next holiday to Sardinia in 2025/2026.
- 26°C max day temperature
26 - 8 hours of sunshine per day
- 8 days with some rainfall
8 - 17°C min night temperature
17 - 12 hours of daylight per day
12 - Low heat & humidity
L - 30 mm of monthly rainfall
30 - 6 (High) UV index
6 - 23°C sea temperature
23
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The September weather guide for Sardinia (Olbia) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Top Sardinia destinations
Below are average maximum temperatures at popular countries, regions and places in Sardinia in September. Select a holiday destination to see more weather parameters.
All Sardinia destinations
- Alghero
- Arzachena
- Baia Sardinia
- Cagliari
- Cannigione
- Isola Rossa
- Olbia
- Oliena
- Oristano
- Palau
- Porto Cervo
- Porto Rafael
- Pula
- San Pantaleo
- Santa Margherita di Pula
- Santa Teresa Gallura
- Sassari
- Vilasimius
Metric (°C / mm) | Imperial (°F / inches)
More about Sardinia
How hot is it in Sardinia in September?
Daytime temperatures usually reach 26°C in Olbia, Sardinia in September with low heat and humidity, falling to 17°C at night.
How sunny is it in Sardinia in September?
There are normally 8 hours of bright sunshine each day in Olbia, Sardinia in September - that's 66% of daylight hours.
How warm is the sea around Sardinia in September?
The average sea temperature around Olbia, Sardinia in September is 23°C.
Does it rain in Sardinia in September?
There are usually 8 days with some rain in Olbia, Sardinia in September and the average monthly rainfall is 30mm.
Sardinia September sunrise & sunset times
Browse the sunrise and sunset times for Sardinia in September 2025. Select a month to view Sardinia sunrise and sunset times for the next 12 months. The Sardinia sunrise and sunset times shown below are for Olbia.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Monday, 1st September 2025 | 05:49 | 18:54 |
| Monday, 15th September 2025 | 06:03 | 18:31 |
| Tuesday, 30th September 2025 | 06:18 | 18:05 |
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