Annecy · AutumnMonth summary
Annecy weather in September
✅ Good
🌡️ Temperature min / max
13°C – 21°C
🌧 Rainy days
37% of days
☀️ Sunshine
11.0h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.4/10
📅 📅 Best month
August (8.5/10)
Quick decision
Should you visit Annecy in September?
✅ Good
✅ Yes if: you want to explore the city on foot without suffering from heat.
❌ No if: you're looking for a beach destination — water and air are still cool.
Our take: September is a good time to visit Annecy. August remains slightly better (+1.1 pts).
By trip type
Annecy in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ⚠️ Possible
- 🏖️ Beach / swimming : — No sea access
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in September
🎯 Harvest season — fresh local produce at markets and restaurants Autumn in Annecy is often underrated: 21°C, golden light and declining crowds. An interesting window. Expect rain on 37% of days — a light raincoat in the bag is recommended. Not the best window, but acceptable if dates are constrained. August (8.5/10) is significantly better if possible.
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All months for Annecy
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌦️ January | 0°C | 6°C | 45% | 4.8 | 6.7h | 3.1/10 |
| 🌦️ February | 1°C | 10°C | 39% | 3.3 | 8.4h | 4.5/10 |
| 🌦️ March | 2°C | 12°C | 44% | 3.8 | 10.4h | 5.1/10 |
| ⛅ April | 5°C | 16°C | 37% | 3.7 | 11.9h | 7.0/10 |
| 🌦️ May | 9°C | 19°C | 50% | 5.1 | 12.5h | 7.1/10 |
| 🌤️ June | 14°C | 24°C | 47% | 4.6 | 13.9h | 7.8/10 |
| 🌤️ July | 16°C | 26°C | 35% | 4.1 | 14.2h | 8.4/10 |
| 🌤️ August | 16°C | 27°C | 31% | 3.0 | 13.0h | 8.5/10 |
| 🌤️ September | 13°C | 21°C | 37% | 3.7 | 11.0h | 7.4/10 |
| ⛅ October | 9°C | 17°C | 39% | 4.5 | 9.3h | 7.0/10 |
| 🌦️ November | 4°C | 10°C | 47% | 5.0 | 7.2h | 4.0/10 |
| 🌦️ December | 1°C | 7°C | 44% | 4.8 | 7.0h | 3.7/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In September, Annecy averages 21°C, 37% rainy days and 11.0h of sunshine per day. Overall weather score: 7.4/10.
See methodology →
Comparison
September vs August (best month)
The best month is August (score 8.5/10). Difference:
- 🌡️ Max temperature : +6°C
- 🌧 Rainy days : -6%
- ☀️ Sunshine : +2.0h/day
FAQ
FAQ — Annecy in September
Is September a good time to visit Annecy?
September is an acceptable time for Annecy (score 7.4/10). Conditions are decent but not optimal — consider August (8.5/10) if possible.
What to do in Annecy in September?
With 21°C max and 11.0h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
Activities and tours in Annecy
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