Grand Est
September
Weather in Grand Est for September 2025
Your guide to Grand Est weather in September - trends and predictions
In general, the average temperature in Grand Est at the beginning of September is 27 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21 °C by the end of September.
Grand Est sees moderate rainfall in September, averaging 7 rainy days.
Is September a good time to visit Grand Est? check out the best time to travel to Grand Est page.
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23
Dry days
7
Rainy days
0
Snow days
26°/14°
Temperatures
12 km/h
Avg max wind
64 %
Avg humidity
Grand Est in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  28° | 2  26° | 3  27° | 4  26° | 5 28° | 6 26° | 7 28° |
| 8 25° | 9 24° | 10 26° | 11 23° | 12 23° | 13  19° | 14 19° |
| 15 21° | 16 20° | 17 24° | 18 21° | 19 23° | 20 25° | 21  25° |
| 22  21° | 23 19° | 24 20° | 25 21° | 26 22° | 27 21° | 28 20° |
| 29 22° | 30 21° |
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Temperatures trend during September in Grand Est
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. | Patchy rain possible | 28° /16° | 0.1 mm | 7 | |
| 2 Sept. | Partly cloudy | 26° /15° | 1.3 mm | 7 | |
| 3 Sept. | Sunny | 27° /16° | 3.8 mm | 7 | |
| 4 Sept. | Cloudy | 26° /15° | 4.9 mm | 6 | |
| 5 Sept. | Sunny | 28° /14° | 1.5 mm | 7 | |
| 6 Sept. | Sunny | 26° /13° | 1.8 mm | 6 | |
| 7 Sept. | Sunny | 28° /14° | 0 mm | 7 | |
| 8 Sept. | Sunny | 25° /15° | 1.8 mm | 7 | |
| 9 Sept. | Sunny | 24° /15° | 2.8 mm | 6 | |
| 10 Sept. | Sunny | 26° /14° | 0.7 mm | 7 | |
| 11 Sept. | Sunny | 23° /13° | 3.3 mm | 6 | |
| 12 Sept. | Partly cloudy | 23° /11° | 0.5 mm | 6 | |
| 13 Sept. | Overcast | 19° /11° | 0.7 mm | 5 | |
| 14 Sept. | Overcast | 19° /10° | 0 mm | 4 | |
| 15 Sept. | Sunny | 21° /8° | 0 mm | 6 | |
| 16 Sept. | Patchy rain possible | 20° /11° | 0.6 mm | 5 | |
| 17 Sept. | Partly cloudy | 24° /13° | 0.9 mm | 6 | |
| 18 Sept. | Light rain shower | 21° /13° | 2.9 mm | 5 | |
| 19 Sept. | Patchy rain possible | 23° /13° | 0.6 mm | 5 | |
| 20 Sept. | Sunny | 25° /11° | 0 mm | 7 | |
| 21 Sept. | Moderate rain | 25° /13° | 6.9 mm | 6 | |
| 22 Sept. | Patchy light rain with thunder | 21° /12° | 4.1 mm | 5 | |
| 23 Sept. | Patchy rain possible | 19° /10° | 4.2 mm | 4 | |
| 24 Sept. | Sunny | 20° /10° | 0.1 mm | 5 | |
| 25 Sept. | Sunny | 21° /8° | 0.7 mm | 6 | |
| 26 Sept. | Sunny | 22° /11° | 7.4 mm | 5 | |
| 27 Sept. | Overcast | 21° /10° | 1.5 mm | 5 | |
| 28 Sept. | Partly cloudy | 20° /10° | 3.2 mm | 5 | |
| 29 Sept. | Partly cloudy | 22° /10° | 0 mm | 6 | |
| 30 Sept. | Patchy rain possible | 21° /11° | 1.2 mm | 5 | |
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Important Notice
Our weather forecast for Grand Est 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 Grand Est forecast closer to your planned date for the most up-to-date weather information.
Grand Est in September - FAQ
What are the expected maximum and minimum temperatures in Grand Est during September?
Enjoy moderate daytime temperatures of up to 26° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Grand Est during September?
In September, Grand Est can expect light to moderate rainfall, totaling 27.9 mm across approximately 7 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Grand Est during September?
The average wind speed in Grand Est during September is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Grand Est in September?
As you prepare for your trip to Grand Est 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 Grand Est, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- 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
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in Grand Est
Explore the daily rainfall trends and prepare for Grand Ests September weather 💧
UV exposure in Grand Est during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Grand Est?Get accurate weather forecasts for Grand Est, located at latitude 48.584 and longitude 7.746. Stay updated with localized weather information tailored for Grand Est.
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