Loire-Atlantique
September
Weather in Loire-Atlantique for September 2025
Your guide to Loire-Atlantique weather in September - trends and predictions
In general, the average temperature in Loire-Atlantique at the beginning of September is 25.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.3 °C by the end of September.
Loire-Atlantique sees moderate rainfall in September, averaging 10 rainy days.
Is September a good time to visit Loire-Atlantique? check out the best time to travel to Loire-Atlantique page.
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20
Dry days
10
Rainy days
0
Snow days
26°/15°
Temperatures
20 km/h
Avg max wind
66 %
Avg humidity
Loire-Atlantique in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  22° | 2  23° | 3  28° | 4 28° | 5 25° | 6 27° | 7 26° |
| 8  26° | 9 28° | 10 25° | 11 23° | 12 21° | 13 22° | 14 23° |
| 15 26° | 16 23° | 17 26° | 18 24° | 19 23° | 20 23° | 21 19° |
| 22 20° | 23  18° | 24 21° | 25 20° | 26 22° | 27  20° | 28 20° |
| 29 18° | 30 21° |
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Temperatures trend during September in Loire-Atlantique
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. | Light rain shower | 22° /14° | 8.2 mm | 5 | |
| 2 Sept. | Mist | 23° /14° | 0.5 mm | 5 | |
| 3 Sept. | Sunny | 28° /15° | 0.2 mm | 7 | |
| 4 Sept. | Sunny | 28° /15° | 0.1 mm | 7 | |
| 5 Sept. | Patchy rain possible | 25° /15° | 0.1 mm | 6 | |
| 6 Sept. | Patchy rain possible | 27° /15° | 0.4 mm | 6 | |
| 7 Sept. | Sunny | 26° /16° | 6.1 mm | 6 | |
| 8 Sept. | Partly cloudy | 26° /17° | 4.4 mm | 6 | |
| 9 Sept. | Partly cloudy | 28° /15° | 0.2 mm | 7 | |
| 10 Sept. | Patchy rain possible | 25° /14° | 0.2 mm | 6 | |
| 11 Sept. | Light rain shower | 23° /13° | 3.2 mm | 5 | |
| 12 Sept. | Mist | 21° /11° | 0.2 mm | 5 | |
| 13 Sept. | Mist | 22° /10° | 0 mm | 6 | |
| 14 Sept. | Mist | 23° /9° | 0 mm | 6 | |
| 15 Sept. | Partly cloudy | 26° /11° | 0 mm | 7 | |
| 16 Sept. | Light rain shower | 23° /13° | 1 mm | 5 | |
| 17 Sept. | Light rain shower | 26° /14° | 4.4 mm | 6 | |
| 18 Sept. | Partly cloudy | 24° /14° | 0 mm | 6 | |
| 19 Sept. | Patchy rain possible | 23° /14° | 0.1 mm | 6 | |
| 20 Sept. | Patchy rain possible | 23° /14° | 5.2 mm | 5 | |
| 21 Sept. | Light rain shower | 19° /13° | 27.1 mm | 4 | |
| 22 Sept. | Patchy rain possible | 20° /11° | 3.6 mm | 5 | |
| 23 Sept. | Cloudy | 18° /10° | 1.1 mm | 4 | |
| 24 Sept. | Sunny | 21° /11° | 0.1 mm | 6 | |
| 25 Sept. | Light rain shower | 20° /13° | 12.4 mm | 5 | |
| 26 Sept. | Patchy rain possible | 22° /14° | 2.4 mm | 5 | |
| 27 Sept. | Overcast | 20° /11° | 3.3 mm | 5 | |
| 28 Sept. | Partly cloudy | 20° /10° | 0 mm | 5 | |
| 29 Sept. | Patchy rain possible | 18° /11° | 1.4 mm | 4 | |
| 30 Sept. | Sunny | 21° /12° | 0.6 mm | 5 | |
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Important Notice
Our weather forecast for Loire-Atlantique 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 Loire-Atlantique forecast closer to your planned date for the most up-to-date weather information.
Loire-Atlantique in September - FAQ
What are the expected maximum and minimum temperatures in Loire-Atlantique during September?
During September, expect a variety of temperatures with highs around 26° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Loire-Atlantique during September?
Moderate rainfall is anticipated in Loire-Atlantique during September, with a total of 81.9 mm spread over approximately 10 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Loire-Atlantique during September?
The average wind speed in Loire-Atlantique during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Loire-Atlantique in September?
As you prepare for your trip to Loire-Atlantique 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 Loire-Atlantique, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- 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
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in Loire-Atlantique
Explore the daily rainfall trends and prepare for Loire-Atlantiques September weather 💧
UV exposure in Loire-Atlantique during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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