Annecy
September
Weather in Annecy for September 2026
Your guide to Annecy weather in September - trends and predictions
In general, the average temperature in Annecy at the beginning of September is 25.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.3 °C by the end of September.
Annecy in September brings notable rainfall, with an average of 19 rainy days and a total precipitation of 136.2 mm.
Is September a good time to visit Annecy? check out the best time to travel to Annecy page.
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Temperatures
Rain 🌧️
More
11
Dry days
19
Rainy days
0
Snow days
21°/8°
Temperatures
7 km/h
Avg max wind
77 %
Avg humidity
Annecy Weather September
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Temperatures trend during September in Annecy
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September weather in Annecy day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 24° /9° | 23.1 mm | 6 | |
| 2 Sept. | Sunny | 24° /10° | 2.4 mm | 6 | |
| 3 Sept. | Sunny | 26° /11° | 5.7 mm | 6 | |
| 4 Sept. |  Cloudy | 25° /11° | 11.3 mm | 5 | |
| 5 Sept. |  Light rain shower | 23° /10° | 2.4 mm | 5 | |
| 6 Sept. | Sunny | 26° /9° | 0 mm | 6 | |
| 7 Sept. | Sunny | 28° /11° | 0.3 mm | 7 | |
| 8 Sept. | Sunny | 25° /12° | 7.6 mm | 6 | |
| 9 Sept. | Sunny | 20° /11° | 4.7 mm | 5 | |
| 10 Sept. | Sunny | 24° /10° | 1.2 mm | 6 | |
| 11 Sept. | Sunny | 22° /9° | 5.4 mm | 5 | |
| 12 Sept. | Patchy rain possible | 20° /6° | 1.6 mm | 5 | |
| 13 Sept. |  Moderate or heavy rain shower | 17° /6° | 9.7 mm | 4 | |
| 14 Sept. |  Mist | 19° /7° | 1.7 mm | 4 | |
| 15 Sept. | Mist | 22° /8° | 2.6 mm | 6 | |
| 16 Sept. |  Patchy light drizzle | 19° /7° | 1 mm | 5 | |
| 17 Sept. |  Thundery outbreaks possible | 22° /7° | 0.1 mm | 5 | |
| 18 Sept. | Sunny | 21° /8° | 7.2 mm | 5 | |
| 19 Sept. | Patchy rain possible | 23° /8° | 0.6 mm | 5 | |
| 20 Sept. |  Partly cloudy | 24° /8° | 0.1 mm | 6 | |
| 21 Sept. | Patchy light drizzle | 23° /8° | 12.2 mm | 5 | |
| 22 Sept. |  Patchy light rain with thunder | 16° /8° | 13.9 mm | 4 | |
| 23 Sept. | Light rain shower | 13° /5° | 15.7 mm | 3 | |
| 24 Sept. | Sunny | 15° /5° | 0.9 mm | 4 | |
| 25 Sept. | Sunny | 17° /5° | 0.4 mm | 5 | |
| 26 Sept. | Sunny | 16° /7° | 17.6 mm | 4 | |
| 27 Sept. |  Overcast | 18° /6° | 2 mm | 4 | |
| 28 Sept. | Partly cloudy | 17° /4° | 2.8 mm | 4 | |
| 29 Sept. | Mist | 19° /5° | 0 mm | 5 | |
| 30 Sept. | Mist | 19° /6° | 1.9 mm | 4 | |
| 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.
Change Month
Annecy weather in September vs August vs October
Compare September weather in Annecy with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
| August | September | October | |
|---|---|---|---|
| Weather | Sunny | Patchy rain possible | Patchy rain possible |
| Temperatures | 27°/13° | 21°/8° | 17°/7° |
| Rainfall | 132 mm | 136 mm | 178 mm |
| Wind | 7.4 km/h | 7.2 km/h | 6.6 km/h |
| Humidity | 69% | 77% | 82% |
| Rainy days | 18 days | 19 days | 21 days |
| Dry days | 13 days | 11 days | 10 days |
Planning a trip to Annecy? Discover the best time to visit
Annecy in September - FAQ
What are the expected maximum and minimum temperatures in Annecy during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 8°. 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 136.2 mm is expected in Annecy during September, occurring over more than 19 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 ☀️
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