France
Chamonix in May: weather & travel advice
This month's data profile
Rain shapes the decision
Chamonix in May is climatically mixed. The average daily high is around 12 °C. With about 18 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
36/100 · #6
Warmth
#5
Dryness
#12
Sun
#4
Published best categories: none
Chamonix · MayPhoto: Alain Bourque · CC BY 3.0Climate facts
- Average high
- 12 °C
- Average low
- 2 °C
- Rainy days (est.)
- 18 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 78 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| April | 7 | -2 | 13 | 80 | 5.5 | 80 | 0.9 | 35 |
| May (selected) | 12 | 2 | 18 | 110 | 6.4 | 78 | 0.8 | 36 |
| June | 16 | 6 | 17 | 106 | 7.5 | 77 | 0.8 | 50 |
How do the previous and next months compare?
Baseline: May (36/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| April | -1 | -5.3 °C | -4.4 °C | -4.5 | -30 mm | -0.9 h | +1.9 % | +0.1 m/s |
| June | +14 | +4 °C | +4.2 °C | -1.3 | -4.6 mm | +1.1 h | -1.4 % | ±0 m/s |
All twelve months in context

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Where to stay in Chamonix
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Useful next decisions
Frequently asked questions
How warm is Chamonix in May?
The average daily high is around 12 °C, with an average daily low of about 2 °C.
Does it rain a lot in Chamonix in May?
The curated estimate is about 18 rainy days per month, not a directly measured long-term average. Total precipitation averages around 110 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Chamonix?
By the climate score, August are the strongest months for Chamonix. May is not among them.