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Ermont Weather by Month
Average temperatures, rainfall and humidity for Ermont, France, month by month, built from OpenWeather's historical records. Use it to see what a typical Ermont month looks like before you travel — then check the live Ermont forecast for the days ahead.
Warmest month
July
26°C average high
Coolest month
January
2°C average low
Wettest month
May
69 mm of rain
Driest month
July
39 mm of rain
Average temperature and rainfall in Ermont by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 7°C | 2°C | -11°C / 15°C | 52 mm | 86% | 14 km/h |
| February | 9°C | 3°C | -8°C / 21°C | 56 mm | 80% | 16 km/h |
| March | 12°C | 4°C | -11°C / 25°C | 53 mm | 73% | 15 km/h |
| April | 16°C | 7°C | -2°C / 28°C | 41 mm | 66% | 13 km/h |
| May | 19°C | 10°C | 1°C / 33°C | 69 mm | 69% | 13 km/h |
| June | 24°C | 14°C | 7°C / 43°C | 54 mm | 67% | 12 km/h |
| July | 26°C | 16°C | 8°C / 41°C | 39 mm | 62% | 12 km/h |
| August | 26°C | 15°C | 5°C / 40°C | 51 mm | 65% | 11 km/h |
| September | 22°C | 12°C | 3°C / 35°C | 52 mm | 73% | 11 km/h |
| October | 17°C | 10°C | -1°C / 29°C | 65 mm | 81% | 13 km/h |
| November | 11°C | 6°C | -4°C / 20°C | 58 mm | 85% | 14 km/h |
| December | 9°C | 4°C | -7°C / 16°C | 62 mm | 86% | 15 km/h |
Best time to visit Ermont
The most comfortable time to visit Ermont is generally June to August, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around May, totalling about 651 mm a year.
Travellers who prefer heat should aim for July, when highs average 26°C. May is the month to avoid if rain would spoil your plans — it averages 69 mm, roughly 2× the rainfall of July.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Ermont forecast for what is happening now.