Weather in Cagliari for September 2025
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Until now, September 2025 in Cagliari has been nearly identical to the historical average, with a temperature of 28.8 °C (showing only a slight deviation of -0.1 °C).
The forecast for the next days in Cagliari predicts temperatures to be around 28 °C, close to the historical average.
In general, the average temperature in Cagliari at the beginning of September is 29.3 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 26.6 °C by the end of September.
With an average of 5 rainy days, Cagliari experiences minimal rainfall in September.
Is September a good time to visit Cagliari? check out the best time to travel to Cagliari page.
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Cagliari Weather September
Temperatures trend during September in Cagliari
September weather in Cagliari day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 29° /20° | 0 mm | 7 | |
| 2 Sept. |  Patchy rain possible | 29° /20° | 0.3 mm | 7 | |
| 3 Sept. | Sunny | 29° /20° | 1 mm | 7 | |
| 4 Sept. | Sunny | 29° /20° | 0 mm | 7 | |
| 5 Sept. | Sunny | 31° /20° | 0 mm | 8 | |
| 6 Sept. | Sunny | 29° /19° | 0 mm | 7 | |
| 7 Sept. |  Partly cloudy | 29° /20° | 0 mm | 7 | |
| 8 Sept. | Sunny | 30° /21° | 2.4 mm | 7 | |
| 9 Sept. | Patchy rain possible | 29° /21° | 0.7 mm | 7 | |
| 10 Sept. | Sunny | 28° /19° | 1.2 mm | 7 | |
| 11 Sept. | Sunny | 28° /19° | 0 mm | 7 | |
| 12 Sept. | Sunny | 28° /18° | 0.9 mm | 7 | |
| 13 Sept. | Partly cloudy | 27° /19° | 0 mm | 7 | |
| 14 Sept. | Partly cloudy | 27° /19° | 0 mm | 7 | |
| 15 Sept. | Sunny | 31° /21° | 0 mm | 1.7 | |
| 16 Sept. | Sunny | 31° /21° | 0 mm | 1.7 | |
| 17 Sept. | Sunny | 30° /20° | 0 mm | 1.5 | |
| 18 Sept. | Sunny | 28° /19° | 0 mm | 1.6 | |
| 19 Sept. | Sunny | 27° /20° | 0 mm | 1.8 | |
| 20 Sept. | Sunny | 27° /20° | 0 mm | 6 | |
| 21 Sept. | Patchy rain possible | 27° /21° | 0.1 mm | 5 | |
| 22 Sept. | Sunny | 27° /21° | 0 mm | 6 | |
| 23 Sept. | Sunny | 27° /21° | 0 mm | 6 | |
| 24 Sept. | Sunny | 27° /21° | 0 mm | 6 | |
| 25 Sept. | Partly cloudy | 27° /21° | 0 mm | 6 | |
| 26 Sept. | Patchy rain possible | 27° /21° | 1.9 mm | 5 | |
| 27 Sept. | Patchy rain possible | 27° /20° | 1.9 mm | 5 | |
| 28 Sept. | Sunny | 27° /18° | 0 mm | 6 | |
| 29 Sept. | Sunny | 25° /16° | 0 mm | 7 | |
| 30 Sept. | Sunny | 26° /15° | 0 mm | 7 | |
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Cagliari weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Sunny | Sunny | Sunny |
| Temperatures | 31°/21° | 27°/19° | 25°/17° |
| Rainfall | 4 mm | 10 mm | 45 mm |
| Wind | 22.9 km/h | 22.5 km/h | 19.7 km/h |
| Humidity | 56% | 61% | 69% |
| Rainy days | 1 days | 5 days | 9 days |
| Dry days | 30 days | 25 days | 22 days |
Planning a trip to Cagliari? Discover the best time to visit
Cagliari in September - FAQ
Cagliari water temperatures in September
The average water temperature of the Mediterranean Sea near Cagliari in September is 23.9 °C. Temperatures remain fairly consistent throughout the month.
- What is the water temperature in Cagliari in September?
- The average water temperature in Cagliari in September is 23.9 °C.
- Can you swim in Cagliari in September?
- Comfortably warm for most people. Sensitive swimmers might prefer a light rash-guard, but wetsuits are rarely needed.
What to pack to Cagliari in September?
As you prepare for your trip to Cagliari in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Cagliari, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in Cagliari
UV exposure in Cagliari during September
Quick links
Where is Cagliari?Get accurate weather forecasts for Cagliari, located at latitude 39.231 and longitude 9.119. Stay updated with localized weather information tailored for Cagliari.