Weather in Cagliari for September 2026
So far, September 2026 in Cagliari is slightly warmer than the historical average by 2 °C.
The forecast for the next days in Cagliari predicts temperatures to be around 29 °C, close to the historical average.
In general, the average temperature in Cagliari at the beginning of September is 30.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 26.7 °C by the end of September.
Cagliari experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 15.1 mm.
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 | 30° /20° | 0 mm | 8 | |
| 2 Sept. |  Patchy rain possible | 30° /20° | 0.2 mm | 7 | |
| 3 Sept. | Sunny | 31° /20° | 0.8 mm | 7 | |
| 4 Sept. | Sunny | 29° /20° | 0 mm | 7 | |
| 5 Sept. | Sunny | 32° /20° | 0 mm | 8 | |
| 6 Sept. | Sunny | 30° /20° | 0 mm | 7 | |
| 7 Sept. |  Partly cloudy | 29° /21° | 0 mm | 8 | |
| 8 Sept. | Sunny | 31° /21° | 1.8 mm | 7 | |
| 9 Sept. | Patchy rain possible | 30° /21° | 0.6 mm | 7 | |
| 10 Sept. | Sunny | 28° /20° | 1 mm | 6 | |
| 11 Sept. | Sunny | 28° /19° | 0 mm | 7 | |
| 12 Sept. |  Overcast | 29° /18° | 0 mm | 6.5 | |
| 13 Sept. | Sunny | 28° /19° | 0 mm | 6.6 | |
| 14 Sept. | Sunny | 29° /19° | 0 mm | 6.5 | |
| 15 Sept. | Sunny | 28° /20° | 0 mm | 7 | |
| 16 Sept. | Sunny | 29° /20° | 0 mm | 7 | |
| 17 Sept. | Sunny | 30° /20° | 0 mm | 7 | |
| 18 Sept. | Overcast | 28° /18° | 0 mm | 7 | |
| 19 Sept. | Overcast | 28° /18° | 0 mm | 7 | |
| 20 Sept. | Overcast | 31° /19° | 0 mm | 8 | |
| 21 Sept. | Sunny | 32° /20° | 0 mm | 8 | |
| 22 Sept. | Sunny | 32° /20° | 0 mm | 8 | |
| 23 Sept. | Sunny | 28° /19° | 0 mm | 7 | |
| 24 Sept. | Sunny | 28° /21° | 0 mm | 7 | |
| 25 Sept. | Sunny | 28° /21° | 0 mm | 7 | |
| 26 Sept. | Sunny | 26° /17° | 0.2 mm | 6 | |
| 27 Sept. | Sunny | 28° /18° | 0.3 mm | 7 | |
| 28 Sept. | Partly cloudy | 26° /16° | 0 mm | 7 | |
| 29 Sept. | Sunny | 25° /16° | 0 mm | 6 | |
| 30 Sept. | Sunny | 26° /16° | 0.2 mm | 6 | |
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Cagliari weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Sunny | Sunny | Patchy rain possible |
| Temperatures | 31°/21° | 27°/19° | 24°/17° |
| Rainfall | 4 mm | 15 mm | 40 mm |
| Wind | 22.9 km/h | 21.8 km/h | 19.8 km/h |
| Humidity | 56% | 62% | 69% |
| Rainy days | 1 days | 6 days | 12 days |
| Dry days | 30 days | 24 days | 19 days |
Planning a trip to Cagliari? Discover the best time to visit
Cagliari in September - FAQ
What are the expected maximum and minimum temperatures in Cagliari during September?
How much rainfall should be expected in Cagliari during September?
What are the typical wind conditions in Cagliari during September?
Cagliari water temperatures in September
The average water temperature of the Mediterranean Sea near Cagliari in September is 25.6 °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 25.6 °C.
- Can you swim in Cagliari in September?
- Ideal conditions for families and casual swimmers. You can stay in for long swims or reef explorations with no thermal protection required.
September rainfall patterns in Cagliari
UV exposure in Cagliari during September
What to pack to Cagliari in September?
Warm & sunny · highs around 27 °C, occasional showers
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
🎒 Accessories
🧴 Personal Items
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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.