Conditions can all change at any time in Chamonix! This info will help you make your plans for the day.
In ski season, Lumiplan has a useful quick overview of weather and lifts:
Lift openings can vary for many reasons – high winds, avalanche control, maintenance – so it’s always a good idea to check quickly before choosing your area for the day. Chamonix.com has a very useful live info page including lift opening details.
The forecast can change very quickly so I recommend checking every day.
chamonix.com – a useful graphical format, with links to road conditions, snow conditions and avalanche report.
chamonix-meteo.com – detailed text forecast with trends for the next few days (currently French only but auto-translate works fine)
For even more detail (EG for walking, mountaineering, climbing, ski touring) you can check the Office Haute Montagne or the latest mountain conditions (or call them).
Useful to know for working out rain/snow level etc:
The chalet is at 1050m altitude and the majority of the lifts start around 1800m altitude, going up to around 2500m. Grands Montets is a bit higher, Les Houches is much lower (mostly 1000-1800m). For more specific info on the altitude of individual areas, check the maps in the chalet. (General info on the ski areas is here)
Inversions & Webcams
Remember inversions are common here – it is often cloudy in the valley but beautiful high up! Check the webcams if in any doubt. Sometimes webcams may show a default photo as a thumbnail – always check that you are on the actual live view.