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 22.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.1 °C by the end of September.
La Rochelle sees moderate rainfall in September, averaging 7 rainy days.
Is September a good time to visit La Rochelle? check out the best time to travel to La Rochelle page.
- New! Chat with our AI weatherman - it’s amazing and free.
23
Dry days
7
Rainy days
0
Snow days
23°/15°
Temperatures
22 km/h
Avg max wind
72 %
Avg humidity
La Rochelle in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  21° | 2 22° | 3  24° | 4 26° | 5 21° | 6 23° | 7 23° |
| 8  23° | 9 22° | 10 22° | 11 20° | 12 19° | 13  20° | 14 22° |
| 15 24° | 16  23° | 17 23° | 18 21° | 19 21° | 20 21° | 21  20° |
| 22 19° | 23 18° | 24 20° | 25 20° | 26 20° | 27  20° | 28 18° |
| 29 17° | 30 19° |
You can click on date
Access La Rochelle weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in La Rochelle
See the weather trend as well as the moving average line
September weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Patchy rain possible | 21° /17° | 3.9 mm | 5 | |
| 2 Sept. | Light rain shower | 22° /17° | 4.8 mm | 5 | |
| 3 Sept. | Sunny | 24° /17° | 1.5 mm | 6 | |
| 4 Sept. | Sunny | 26° /17° | 0 mm | 7 | |
| 5 Sept. | Sunny | 21° /17° | 0.7 mm | 6 | |
| 6 Sept. | Sunny | 23° /18° | 0.8 mm | 6 | |
| 7 Sept. | Sunny | 23° /17° | 6.5 mm | 6 | |
| 8 Sept. | Partly cloudy | 23° /19° | 2.4 mm | 6 | |
| 9 Sept. | Sunny | 22° /18° | 0.7 mm | 6 | |
| 10 Sept. | Patchy rain possible | 22° /17° | 1.3 mm | 5 | |
| 11 Sept. | Patchy rain possible | 20° /15° | 11 mm | 5 | |
| 12 Sept. | Partly cloudy | 19° /15° | 0.3 mm | 5 | |
| 13 Sept. | Cloudy | 20° /14° | 0 mm | 5 | |
| 14 Sept. | Sunny | 22° /13° | 0 mm | 6 | |
| 15 Sept. | Partly cloudy | 24° /14° | 0 mm | 7 | |
| 16 Sept. | Light drizzle | 23° /15° | 0.6 mm | 6 | |
| 17 Sept. | Light rain shower | 23° /16° | 6.8 mm | 6 | |
| 18 Sept. | Light rain shower | 21° /16° | 2.9 mm | 6 | |
| 19 Sept. | Light rain shower | 21° /15° | 1.9 mm | 6 | |
| 20 Sept. | Patchy rain possible | 21° /17° | 1.6 mm | 5 | |
| 21 Sept. | Moderate or heavy rain shower | 20° /16° | 18.1 mm | 5 | |
| 22 Sept. | Moderate or heavy rain shower | 19° /15° | 9.5 mm | 4 | |
| 23 Sept. | Patchy rain possible | 18° /13° | 5.2 mm | 4 | |
| 24 Sept. | Sunny | 20° /14° | 4.2 mm | 5 | |
| 25 Sept. | Cloudy | 20° /16° | 12.6 mm | 5 | |
| 26 Sept. | Sunny | 20° /16° | 3.8 mm | 5 | |
| 27 Sept. | Overcast | 20° /15° | 2.9 mm | 5 | |
| 28 Sept. | Patchy rain possible | 18° /14° | 0.1 mm | 5 | |
| 29 Sept. | Patchy rain possible | 17° /14° | 6.3 mm | 4 | |
| 30 Sept. | Sunny | 19° /15° | 0.9 mm | 5 | |
| Next | |||||
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 23° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in La Rochelle during September?
Significant rainfall exceeding 152 mm is expected in La Rochelle during September, occurring over more than 7 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in La Rochelle during September?
The average wind speed in La Rochelle during September is 22 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
Quick links
You are here
Where is La Rochelle?Get accurate weather forecasts for La Rochelle, located at latitude 46.163 and longitude -1.152. Stay updated with localized weather information tailored for La Rochelle.
Related locations
Select a location for accurate weather forecast
More Locations Found a mistake?
We appreciate your attention to details. Tell us here.