Saint-Étienne
September
Weather in Saint-Étienne for September 2025
Your guide to Saint-Étienne weather in September - trends and predictions
In general, the average temperature in Saint-Étienne at the beginning of September is 27.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.4 °C by the end of September.
The climate of Saint-Étienne in September is notably wet, with an average of 15 rainy days, and a total of 117 mm of precipitation.
Is September a good time to visit Saint-Étienne? check out the best time to travel to Saint-Étienne page.
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Temperatures
Rain 🌧️
More
15
Dry days
15
Rainy days
0
Snow days
23°/9°
Temperatures
14 km/h
Avg max wind
68 %
Avg humidity
Saint-Étienne in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  30° | 2  28° | 3 28° | 4 27° | 5 25° | 6 27° | 7 30° |
| 8 27° | 9 25° | 10 26° | 11 25° | 12  22° | 13  16° | 14 18° |
| 15 22° | 16  21° | 17 22° | 18  21° | 19  22° | 20 24° | 21 21° |
| 22 18° | 23 17° | 24 18° | 25 22° | 26 23° | 27  21° | 28 20° |
| 29 23° | 30 23° |
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Temperatures trend during September in Saint-Étienne
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. | Partly cloudy | 30° /12° | 0 mm | 8 | |
| 2 Sept. | Sunny | 28° /11° | 0 mm | 7 | |
| 3 Sept. | Sunny | 28° /12° | 6 mm | 7 | |
| 4 Sept. | Sunny | 27° /12° | 3.9 mm | 7 | |
| 5 Sept. | Sunny | 25° /13° | 23.5 mm | 6 | |
| 6 Sept. | Sunny | 27° /10° | 0 mm | 7 | |
| 7 Sept. | Sunny | 30° /12° | 12.7 mm | 7 | |
| 8 Sept. | Sunny | 27° /12° | 14.2 mm | 7 | |
| 9 Sept. | Sunny | 25° /11° | 0.7 mm | 6 | |
| 10 Sept. | Sunny | 26° /10° | 0 mm | 6 | |
| 11 Sept. | Sunny | 25° /11° | 0.6 mm | 6 | |
| 12 Sept. | Heavy rain at times | 22° /8° | 11.4 mm | 5 | |
| 13 Sept. | Fog | 16° /6° | 0.5 mm | 4 | |
| 14 Sept. | Mist | 18° /6° | 0 mm | 5 | |
| 15 Sept. | Sunny | 22° /5° | 0 mm | 6 | |
| 16 Sept. | Light drizzle | 21° /7° | 4.3 mm | 5 | |
| 17 Sept. | Partly cloudy | 22° /11° | 1.1 mm | 6 | |
| 18 Sept. | Patchy light rain with thunder | 21° /8° | 16 mm | 5 | |
| 19 Sept. | Patchy rain possible | 22° /9° | 0.2 mm | 5 | |
| 20 Sept. | Partly cloudy | 24° /9° | 0 mm | 6 | |
| 21 Sept. | Light rain shower | 21° /11° | 5.2 mm | 5 | |
| 22 Sept. | Patchy rain possible | 18° /9° | 2.7 mm | 4 | |
| 23 Sept. | Patchy rain possible | 17° /6° | 5.4 mm | 4 | |
| 24 Sept. | Sunny | 18° /5° | 0.6 mm | 5 | |
| 25 Sept. | Sunny | 22° /6° | 0 mm | 6 | |
| 26 Sept. | Sunny | 23° /10° | 3.9 mm | 6 | |
| 27 Sept. | Overcast | 21° /7° | 0.5 mm | 5 | |
| 28 Sept. | Partly cloudy | 20° /6° | 1.1 mm | 5 | |
| 29 Sept. | Sunny | 23° /6° | 0 mm | 6 | |
| 30 Sept. | Sunny | 23° /8° | 2.5 mm | 6 | |
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Important Notice
Our weather forecast for Saint-Étienne 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 Saint-Étienne forecast closer to your planned date for the most up-to-date weather information.
Saint-Étienne in September - FAQ
What are the expected maximum and minimum temperatures in Saint-Étienne during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Saint-Étienne during September?
Significant rainfall exceeding 117 mm is expected in Saint-Étienne during September, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Saint-Étienne during September?
The average wind speed in Saint-Étienne during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Saint-Étienne in September?
As you prepare for your trip to Saint-Étienne 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 Saint-Étienne, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long 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
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Saint-Étienne
Explore the daily rainfall trends and prepare for Saint-Étiennes September weather 💧
UV exposure in Saint-Étienne during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Saint-Étienne?Get accurate weather forecasts for Saint-Étienne, located at latitude 45.434 and longitude 4.39. Stay updated with localized weather information tailored for Saint-Étienne.
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