La Rochelle
September
Weather in La Rochelle for September 2025
Your guide to La Rochelle weather in September - trends and predictions
In general, the average temperature in La Rochelle at the beginning of September is 24.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.3 °C by the end of September.
La Rochelle experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 74.1 mm.
Is September a good time to visit La Rochelle? check out the best time to travel to La Rochelle page.
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Temperatures
Rain 🌧️
More
8
Dry days
22
Rainy days
0
Snow days
22°/16°
Temperatures
23 km/h
Avg max wind
70 %
Avg humidity
La Rochelle in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  24° | 2  24° | 3 24° | 4 26° | 5 25° | 6 26° | 7  25° |
| 8  23° | 9 22° | 10 22° | 11 23° | 12 23° | 13 25° | 14 24° |
| 15 23° | 16 23° | 17  22° | 18 21° | 19 21° | 20  21° | 21 22° |
| 22 21° | 23 21° | 24 21° | 25 20° | 26 20° | 27 19° | 28 18° |
| 29 18° | 30 19° |
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Temperatures trend during September in La Rochelle
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Sunny | 24° /17° | 2 mm | 6 | |
| 2 Sept. | Patchy rain possible | 24° /17° | 2.9 mm | 6 | |
| 3 Sept. | Patchy rain possible | 24° /18° | 1 mm | 6 | |
| 4 Sept. | Sunny | 26° /17° | 0 mm | 7 | |
| 5 Sept. | Sunny | 25° /17° | 0.4 mm | 6 | |
| 6 Sept. | Sunny | 26° /18° | 0.4 mm | 6 | |
| 7 Sept. | Partly cloudy | 25° /18° | 5.4 mm | 6 | |
| 8 Sept. | Moderate rain at times | 23° /18° | 3.4 mm | 5 | |
| 9 Sept. | Patchy rain possible | 22° /18° | 1 mm | 5 | |
| 10 Sept. | Patchy rain possible | 22° /17° | 1.1 mm | 5 | |
| 11 Sept. | Partly cloudy | 23° /15° | 5.5 mm | 6 | |
| 12 Sept. | Partly cloudy | 23° /16° | 0.1 mm | 6 | |
| 13 Sept. | Sunny | 25° /16° | 0.8 mm | 6 | |
| 14 Sept. | Moderate rain at times | 24° /16° | 1 mm | 6 | |
| 15 Sept. | Patchy rain possible | 23° /16° | 0.2 mm | 6 | |
| 16 Sept. | Partly cloudy | 23° /15° | 0.3 mm | 6 | |
| 17 Sept. | Cloudy | 22° /14° | 3.4 mm | 6 | |
| 18 Sept. | Moderate rain at times | 21° /15° | 2.5 mm | 5 | |
| 19 Sept. | Patchy rain possible | 21° /14° | 2 mm | 5 | |
| 20 Sept. | Overcast | 21° /15° | 1.6 mm | 5 | |
| 21 Sept. | Sunny | 22° /14° | 9.1 mm | 5 | |
| 22 Sept. | Sunny | 21° /14° | 4.8 mm | 5 | |
| 23 Sept. | Sunny | 21° /13° | 2.7 mm | 5 | |
| 24 Sept. | Sunny | 21° /13° | 3 mm | 5 | |
| 25 Sept. | Moderate or heavy rain shower | 20° /15° | 8.3 mm | 5 | |
| 26 Sept. | Moderate rain at times | 20° /15° | 3.2 mm | 5 | |
| 27 Sept. | Moderate rain at times | 19° /14° | 2.4 mm | 4 | |
| 28 Sept. | Patchy rain possible | 18° /13° | 1.1 mm | 5 | |
| 29 Sept. | Patchy rain possible | 18° /13° | 3.8 mm | 4 | |
| 30 Sept. | Sunny | 19° /12° | 0.7 mm | 5 | |
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Important Notice
Our weather forecast for La Rochelle in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the La Rochelle forecast closer to your planned date for the most up-to-date weather information.
La Rochelle in September - FAQ
What are the expected maximum and minimum temperatures in La Rochelle during September?
During September, expect a variety of temperatures with highs around 22° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in La Rochelle during September?
Moderate rainfall is anticipated in La Rochelle during September, with a total of 74.1 mm spread over approximately 22 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in La Rochelle during September?
The average wind speed in La Rochelle during September is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to La Rochelle in September?
As you prepare for your trip to La Rochelle 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 La Rochelle, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in La Rochelle
Explore the daily rainfall trends and prepare for La Rochelles September weather 💧
UV exposure in La Rochelle during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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