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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the MarketUK weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
According to the live forecast above, Chamonix currently sees [conditions from forecast]. This aligns with typical alpine patterns: winters bring frequent snow and sub-zero lows, while summers offer mild, often sunny days with occasional thunderstorms.
What are the seasonal temperature and snowfall averages for Chamonix?
January average highs hover around –1°C, lows near –9°C; July highs reach 22°C, lows around 9°C. Snowfall peaks December–February with over 2 metres annually at resort level. The 10-day forecast is the most reliable window for planning a trip.
How does the weather vary by month in Chamonix-Mont-Blanc?
December–March: consistently cold with deep snow cover. April–May: spring thaw, slushy conditions. June–August: warm, clear for hiking, but afternoon storms possible. September–November: crisp mornings, early snow at altitude. For detailed month-by-month data, see MarketUK’s weather hub.
What is the best time to visit Chamonix for skiing?
For reliable snow cover, January and February are best. The weather in Chamonix-Mont-Blanc 10 days out gives a solid indication of base conditions. Avoid late April unless you enjoy spring slush.
How cold does Chamonix get in December?
December averages –4 °C to 1 °C, with frequent snowfall. Wind chill at altitude can push feels-like temperatures below –10 °C. The chamonix weather december outlook often mirrors January values.
Does the BBC provide a Chamonix weather forecast?
Yes, the chamonix weather bbc page offers a 14-day outlook. However, for mountain accuracy combine it with local webcams – the chamonix weather webcam feed shows real-time conditions.