Annecy in September
6.6out of 10
Possible, with caveats
Mild: highs around 18°C. Frequent rain: about 13 rainy days.
18°CAvg high
8°CAvg low
13Rainy days (116 mm)
12:18 hDaylight
07:21Sunrise · 19:39 Sunset
Why this score
- Mild: highs around 18°C
- Frequent rain: about 13 rainy days
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in September varies a lot between years (±3.6 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 3°C | -5°C | 129 mm | 13 | – | – | 3.6 |
| February | 4°C | -4°C | 112 mm | 11 | – | – | 4.1 |
| March | 9°C | -1°C | 122 mm | 13 | – | – | 4.7 |
| April | 12°C | 2°C | 122 mm | 15 | – | – | 5.4 |
| May | 17°C | 6°C | 167 mm | 18 | – | – | 5.4 |
| June | 20°C | 10°C | 151 mm | 16 | – | – | 6.3 |
| July | 22°C | 12°C | 145 mm | 14 | – | – | 6.9 |
| August | 22°C | 11°C | 132 mm | 14 | – | – | 7.0 |
| September | 18°C | 8°C | 116 mm | 13 | – | – | 6.6 |
| October | 13°C | 4°C | 118 mm | 13 | – | – | 5.8 |
| November | 7°C | -1°C | 133 mm | 13 | – | – | 4.5 |
| December | 3°C | -4°C | 148 mm | 13 | – | – | 3.6 |
Frequently asked questions
How hot is Annecy in September?
Daytime highs average 18°C and nights about 8°C.
When is the best time to visit Annecy?
The best months are August, July, September.