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Best time to visit Annecy: month by month
Short answer
June and September are the best months, with highs of about 22–25°C and lake water warm enough to swim, and fewer crowds than in July and August. Summer is the warmest season, at about 26–27°C, but also the busiest.
Month by month
| Month | High | Low | Rainy days | Crowds |
|---|---|---|---|---|
| Jan | 6°C | 0°C | 13 | low |
| Feb | 10°C | 1°C | 9 | medium |
| Mar | 12°C | 3°C | 11 | low |
| Apr | 14°C | 5°C | 12 | medium |
| May | 19°C | 10°C | 13 | medium |
| Jun | 25°C | 15°C | 14 | high |
| Jul | 26°C | 17°C | 11 | very high |
| Aug | 27°C | 16°C | 9 | very high |
| Sep | 22°C | 14°C | 9 | high |
| Oct | 18°C | 10°C | 10 | medium |
| Nov | 10°C | 4°C | 17 | low |
| Dec | 8°C | 2°C | 15 | medium |
Temperatures and rainy days: Copernicus ERA5 averages, 2021–2023. Crowd levels are our estimate.
Season by season
Spring (Mar–May)
About 12°C in March, 14°C in April and 19°C in May, with rain on 11–13 days a month; good for walking, too cool for swimming.
Summer (Jun–Aug)
About 25–27°C, with lows of 15–17°C and some storms; lake water around 22–24°C in July and August, and crowded weekends.
Autumn (Sep–Nov)
About 22°C in September and 18°C in October, then 10°C and the wettest weather in November.
Winter (Dec–Feb)
About 6–10°C by day and around 0–2°C at night; Christmas markets, and ski resorts 45–60 minutes away.
Events worth planning around
- Annecy International Animation Film Festival (June)
- Fête du Lac, the lake fireworks festival (August)
- Retour des Alpages, the return of the herds from the pastures (October)
- Christmas markets (December)
When to avoid
Avoid summer weekends and the Fête du Lac weekend in August if you dislike crowds and high prices; November is the wettest month.
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Common questions
What is the best time to visit Annecy?
June and September, for warm weather, swimming and fewer crowds.
Can I swim in Lake Annecy in June?
Yes, often; June highs are about 25°C and the water warms through the month.
Is Annecy worth visiting in winter?
Yes for the Christmas markets and nearby ski resorts, though days are about 6–8°C.