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🇫🇷 Weather in Chamonix in May
This is what the weather in Chamonix (Haute-Savoie, France) was like in May over the years 2017–2026.
Key facts at a glance
Prevailing weather: Light rain
Avg. daytime high
12.3 °C
8.9 °C – 14.8 °C
Avg. night-time low
2.8 °C
-0.5 °C – 4.9 °C
Avg. rain days in period
19.2
62 % of days · ≥ 1.0 mm
Avg. precipitation in period
113 mm
66.4 mm – 183 mm
Avg. cloud cover
72 %
This data source has no sunshine hours – average cloud cover is shown instead.
Avg. sea temperature
–
No sea nearby – no sea temperature.
Extremes: Highest temperature 21.9 °C (26 May 2026) · Lowest temperature -6.8 °C (5 May 2019) · Avg. daily peak wind 10 km/h
Weather mix of all days
- 15Sunny
- 84Partly cloudy
- 19Cloudy
- 86Light rain
- 40Rain
- 66Snow
Summary
- On average 12.3 °C during the day and 2.8 °C at night.
- On average 19.2 rain days (Rain day = at least 1.0 mm of precipitation) with 113 mm of precipitation in total.
- Prevailing weather: Light rain.
- Warmest year: 2022 (avg. 14.8 °C), coolest: 2021 (avg. 8.9 °C).
- Wettest year: 2024 (183 mm), driest: 2022 (66.4 mm).
- Extremes: 21.9 °C on 26 May 2026 and -6.8 °C on 5 May 2019.
Overall values from all 10 years. How is this calculated?
Charts
Temperatures per year
Average over your travel period
Avg. daytime high: 2017 13°, 2018 13°, 2019 9°, 2020 14°, 2021 9°, 2022 15°, 2023 13°, 2024 12°, 2025 12°, 2026 14°. Avg. night-time low: 2017 3°, 2018 4°, 2019 0°, 2020 3°, 2021 0°, 2022 5°, 2023 4°, 2024 3°, 2025 3°, 2026 4°.
Precipitation & rain days
Precipitation (mm): 2017 118, 2018 132, 2019 111, 2020 113, 2021 146, 2022 66, 2023 89, 2024 183, 2025 103, 2026 70.
Year by year
2026
Avg. max13.6°Avg. min3.9°- Rain days
- 13 Rain days
- Precipitation
- 70.0 mm
- Avg. cloud cover
- 66 % cloudy
- Sea temperature
- –
Max 21.9 °C · Min -3.6 °C
2025
Avg. max12.2°Avg. min3.0°- Rain days
- 17 Rain days
- Precipitation
- 103 mm
- Avg. cloud cover
- 71 % cloudy
- Sea temperature
- –
Max 21.2 °C · Min -0.9 °C
2024
Avg. max11.6°Avg. min2.8°- Rain days
- 26 Rain days
- Precipitation
- 183 mm
- Avg. cloud cover
- 84 % cloudy
- Sea temperature
- –
Max 16.5 °C · Min -2.0 °C
2023
Avg. max12.6°Avg. min3.5°- Rain days
- 26 Rain days
- Precipitation
- 89.3 mm
- Avg. cloud cover
- 79 % cloudy
- Sea temperature
- –
Max 17.5 °C · Min -0.5 °C
2022
Avg. max14.8°Avg. min4.9°- Rain days
- 14 Rain days
- Precipitation
- 66.4 mm
- Avg. cloud cover
- 69 % cloudy
- Sea temperature
- –
Max 21.0 °C · Min -1.1 °C
2021
Avg. max8.9°Avg. min-0.5°- Rain days
- 20 Rain days
- Precipitation
- 146 mm
- Avg. cloud cover
- 72 % cloudy
- Sea temperature
- –
Max 16.1 °C · Min -4.4 °C
2020
Avg. max13.8°Avg. min3.4°- Rain days
- 16 Rain days
- Precipitation
- 113 mm
- Avg. cloud cover
- 61 % cloudy
- Sea temperature
- –
Max 18.0 °C · Min -2.5 °C
2019
Avg. max9.3°Avg. min-0.1°- Rain days
- 18 Rain days
- Precipitation
- 111 mm
- Avg. cloud cover
- 69 % cloudy
- Sea temperature
- –
Max 15.8 °C · Min -6.8 °C
2018
Avg. max13.4°Avg. min4.3°- Rain days
- 24 Rain days
- Precipitation
- 132 mm
- Avg. cloud cover
- 81 % cloudy
- Sea temperature
- –
Max 18.4 °C · Min 0.1 °C
2017
Avg. max13.0°Avg. min2.8°- Rain days
- 18 Rain days
- Precipitation
- 118 mm
- Avg. cloud cover
- 67 % cloudy
- Sea temperature
- –
Max 20.4 °C · Min -4.6 °C
Frequently asked questions
- How warm is it in Chamonix in May?
- Daytime highs averaged 12.3 °C, night-time lows 2.8 °C. The highest value of the past 10 years was 21.9 °C (26 May 2026), the lowest -6.8 °C (5 May 2019).
- How often does it rain in Chamonix in May?
- On average there were 19.2 rain days (at least 1 mm) with 113 mm of precipitation in total.
Check your exact travel dates
Choose your travel period – we show the weather for exactly those days.
Other destinations in May
Data sources
- Weather data
- Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. Snow depth is the model value for the grid cell, not the depth on the slopes. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains. - Sea temperature
- MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis) - Place search
- Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)