Weather in Île-de-France for September 2026
The forecast for the next days in Île-de-France predicts temperatures to be around 26 °C, close to the historical average.
In general, the average temperature in Île-de-France at the beginning of September is 28.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.6 °C by the end of September.
Île-de-France experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 62.1 mm.
Is September a good time to visit Île-de-France? check out the best time to travel to Île-de-France page.
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Île-de-France Weather September
What’s the Weather Like in Île-de-France This September?
Temperatures trend during September in Île-de-France
September weather in Île-de-France day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Overcast | 25° /15° | 0 mm | 5.3 | |
| 2 Sept. | Overcast | 27° /17° | 0 mm | 5.4 | |
| 3 Sept. |  Sunny | 29° /18° | 0 mm | 5.9 | |
| 4 Sept. | Sunny | 31° /20° | 0 mm | 5.9 | |
| 5 Sept. | Sunny | 28° /19° | 0 mm | 7 | |
| 6 Sept. |  Cloudy | 30° /17° | 0 mm | 7 | |
| 7 Sept. | Sunny | 32° /22° | 0 mm | 8 | |
| 8 Sept. | Overcast | 28° /19° | 0 mm | 7 | |
| 9 Sept. | Overcast | 27° /17° | 1.2 mm | 7 | |
| 10 Sept. | Sunny | 22° /14° | 0 mm | 6 | |
| 11 Sept. | Sunny | 20° /12° | 0.8 mm | 5 | |
| 12 Sept. | Sunny | 21° /13° | 0 mm | 5 | |
| 13 Sept. | Sunny | 25° /15° | 0 mm | 6 | |
| 14 Sept. | Sunny | 25° /15° | 0 mm | 6 | |
| 15 Sept. |  Patchy rain possible | 24° /14° | 1.7 mm | 6 | |
| 16 Sept. | Patchy rain possible | 21° /13° | 0.1 mm | 5 | |
| 17 Sept. | Cloudy | 23° /13° | 0.2 mm | 5 | |
| 18 Sept. | Patchy rain possible | 23° /14° | 0.2 mm | 5 | |
| 19 Sept. |  Partly cloudy | 24° /13° | 0.1 mm | 6 | |
| 20 Sept. | Patchy rain possible | 22° /14° | 2.3 mm | 5 | |
| 21 Sept. | Overcast | 20° /12° | 2.9 mm | 5 | |
| 22 Sept. | Light rain shower | 20° /11° | 2.8 mm | 5 | |
| 23 Sept. | Sunny | 19° /10° | 3.6 mm | 5 | |
| 24 Sept. | Light rain shower | 18° /11° | 4.2 mm | 4 | |
| 25 Sept. | Patchy rain possible | 19° /11° | 4.5 mm | 5 | |
| 26 Sept. | Patchy rain possible | 19° /12° | 4 mm | 4 | |
| 27 Sept. | Patchy rain possible | 19° /11° | 1.4 mm | 4 | |
| 28 Sept. | Sunny | 18° /11° | 0.5 mm | 4 | |
| 29 Sept. |  Moderate or heavy rain shower | 18° /11° | 1.9 mm | 4 | |
| 30 Sept. | Sunny | 19° /10° | 0.3 mm | 5 | |
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Île-de-France weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 26°/16° | 22°/14° | 18°/11° |
| Rainfall | 46 mm | 62 mm | 77 mm |
| Wind | 15.3 km/h | 15.4 km/h | 16.7 km/h |
| Humidity | 54% | 60% | 66% |
| Rainy days | 7 days | 10 days | 12 days |
| Dry days | 24 days | 20 days | 19 days |
Planning a trip to Île-de-France? Discover the best time to visit
Île-de-France in September - FAQ
What are the expected maximum and minimum temperatures in Île-de-France during September?
How much rainfall should be expected in Île-de-France during September?
What are the typical wind conditions in Île-de-France during September?
September rainfall patterns in Île-de-France
UV exposure in Île-de-France during September
What to pack to Île-de-France in September?
Mild & changeable · highs around 22 °C, frequent showers
As you prepare for your trip to Île-de-France 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 Île-de-France, during September, is comfortable and enjoyable, regardless of the weather conditions.
🧥 Clothing
👟 Footwear
🎒 Accessories
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Where is Île-de-France?Get accurate weather forecasts for Île-de-France, located at latitude 48.853 and longitude 2.349. Stay updated with localized weather information tailored for Île-de-France.