Annecy
September
Weather in Annecy for September 2025
Your guide to Annecy weather in September - trends and predictions
In general, the average temperature in Annecy at the beginning of September is 26.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.3 °C by the end of September.
With an average of 4 rainy days, Annecy experiences minimal rainfall in September.
Is September a good time to visit Annecy? check out the best time to travel to Annecy page.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
26
Dry days
4
Rainy days
0
Snow days
25°/6°
Temperatures
7 km/h
Avg max wind
77 %
Avg humidity
Annecy in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  28° | 2 26° | 3 26° | 4  25° | 5 24° | 6 27° | 7 28° |
| 8 27° | 9 22° | 10 25° | 11 24° | 12  20° | 13  14° | 14  17° |
| 15 21° | 16  19° | 17  22° | 18  19° | 19 20° | 20 23° | 21 23° |
| 22  18° | 23 16° | 24 18° | 25 20° | 26 20° | 27  20° | 28 17° |
| 29 20° | 30 20° |
You can click on date
Access Annecy weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in Annecy
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. | Sunny | 28° /10° | 5 mm | 7 | |
| 2 Sept. | Sunny | 26° /11° | 2.1 mm | 7 | |
| 3 Sept. | Sunny | 26° /12° | 8.5 mm | 7 | |
| 4 Sept. | Cloudy | 25° /12° | 5.8 mm | 6 | |
| 5 Sept. | Sunny | 24° /11° | 2.8 mm | 6 | |
| 6 Sept. | Sunny | 27° /10° | 0 mm | 6 | |
| 7 Sept. | Sunny | 28° /12° | 0.4 mm | 7 | |
| 8 Sept. | Sunny | 27° /12° | 9.4 mm | 7 | |
| 9 Sept. | Sunny | 22° /11° | 1.2 mm | 6 | |
| 10 Sept. | Sunny | 25° /10° | 0.1 mm | 7 | |
| 11 Sept. | Sunny | 24° /10° | 7.5 mm | 6 | |
| 12 Sept. | Partly cloudy | 20° /7° | 2.4 mm | 5 | |
| 13 Sept. | Moderate or heavy rain shower | 14° /5° | 10.3 mm | 4 | |
| 14 Sept. | Mist | 17° /5° | 0 mm | 4 | |
| 15 Sept. | Mist | 21° /6° | 0 mm | 6 | |
| 16 Sept. | Patchy light drizzle | 19° /7° | 0.6 mm | 5 | |
| 17 Sept. | Thundery outbreaks possible | 22° /8° | 0.2 mm | 5 | |
| 18 Sept. | Light rain shower | 19° /7° | 10.8 mm | 5 | |
| 19 Sept. | Patchy rain possible | 20° /6° | 0.9 mm | 5 | |
| 20 Sept. | Partly cloudy | 23° /7° | 0 mm | 6 | |
| 21 Sept. | Patchy light drizzle | 23° /8° | 5 mm | 5 | |
| 22 Sept. | Patchy light rain with thunder | 18° /9° | 14.2 mm | 4 | |
| 23 Sept. | Patchy rain possible | 16° /5° | 16.2 mm | 4 | |
| 24 Sept. | Sunny | 18° /4° | 0.3 mm | 5 | |
| 25 Sept. | Sunny | 20° /4° | 0 mm | 6 | |
| 26 Sept. | Sunny | 20° /8° | 22.2 mm | 5 | |
| 27 Sept. | Overcast | 20° /8° | 3 mm | 5 | |
| 28 Sept. | Partly cloudy | 17° /6° | 4.2 mm | 4 | |
| 29 Sept. | Sunny | 20° /6° | 0 mm | 6 | |
| 30 Sept. | Mist | 20° /8° | 2.9 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Annecy 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 Annecy forecast closer to your planned date for the most up-to-date weather information.
Annecy in September - FAQ
What are the expected maximum and minimum temperatures in Annecy during September?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 6°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Annecy during September?
Significant rainfall exceeding 272.4 mm is expected in Annecy during September, occurring over more than 4 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Annecy during September?
The average wind speed in Annecy during September is 7 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Annecy in September?
As you prepare for your trip to Annecy 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 Annecy, 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 Annecy
Explore the daily rainfall trends and prepare for Annecys September weather 💧
UV exposure in Annecy during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
You are here
Where is Annecy?Get accurate weather forecasts for Annecy, located at latitude 45.909 and longitude 6.126. Stay updated with localized weather information tailored for Annecy.
Related locations
Select a location for accurate weather forecast
More Locations Found a mistake?
We appreciate your attention to details. Tell us here.