SeasonMapVal d'Isère (Val d'Isere) weather in September
France
September in Val d'Isère: cool, rainy, with clean air — not the best time to visit.
#9 of 12 months in Val d'Isère · #1326 of 1383 destinations to visit in September · comfort 27/100 (tier F)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Val d'Isère in September
Notes from nearby Turin (69 km away)
Val d'Isère doesn't have its own notes for September yet — these are about Turin, close enough to share the season.
Turin's forum rates September as the driest month of the year and a regular favorite, though pattern reliability has slipped in recent years according to long-time posters. Given the choice between September and the depths of winter, regulars are unanimous about which one to pick.
Other months in Val d'Isère
Val d'Isère's forum calls January a safe bet for snow precisely because of its altitude — regulars list it alongside Tignes and Val Thorens as one of the high-altitude resorts where cover holds up even in years when lower resorts are struggling. Mountain passes like the Col de l'Iseran typically close for winter, so the drive in goes via Albertville and Bourg-Saint-Maurice; snow chains for the car are essential regardless.
Add your own note from Val d'Isère's card on the map.
Val d'Isère climate normals — September
| Daytime high | 15°C / 59°F | 🙂 cool |
|---|---|---|
| Nighttime low | 7°C / 45°F | |
| Feels like (high) | 14°C / 57°F | |
| Rainfall | 110 mm / 4.3 in | 🌧 rainy |
| Rainy days | 17 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 7°C / 45°F | |
| Sunshine | 9.9 h/day | |
| Daylight | 12.5 h | |
| Wind | 6 km/h / 4 mph | |
| Snowfall | 7.8 cm / 3.1 in | |
| Air quality (US AQI) | 38 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Val d'Isère in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonschool holidays in 3 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Val d'Isère's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherVal d'Isère's weather peaks December–February, best around January.
Best weatherFair weatherToughest weather
What's on in Val d'Isère in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Opening
Col de l'Iseran opens
10 Jun – 2 Nov · usuallyTrail seasonThe highest paved pass in the Alps clears some time in June, 12 June in 2026, and shuts again on the first Monday of November. It is the road to the Maurienne and the reason cyclists come. Source ↗
Nearby, and something's on
Within 300 km of Val d'Isère — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Val d'Isère?
Val d'Isère in September — FAQ
- Is September a good time to visit Val d'Isère?
- September in Val d'Isère: cool, rainy, with clean air — not the best time to visit. It ranks #9 of 12 months for Val d'Isère on SeasonMap's comfort score (27/100).
- What is the weather like in Val d'Isère in September?
- In September, Val d'Isère averages a daily high of 15.2°C and a low of 7.3°C, with about 110.4 mm of rain over roughly 16.7 rainy days.
- What is the air quality in Val d'Isère in September?
- Val d'Isère has a mean US Air Quality Index of about 38 in September.
- Does it snow in Val d'Isère in September?
- Val d'Isère sees roughly 7.8 cm of snowfall in September.
Other months in Val d'Isère
Compare Val d'Isère in September
Warmer or cooler than Val d'Isère in September
Similar destinations in Western Europe — September
Within 300 km: Courmayeur's Tor des Geants around 8–20 Sep, and Chamonix's High mountain huts open around 15 Jun – 20 Sep.