SeasonMapDavos weather in September
Switzerland
September in Davos: cool, rainy, with clean air — not the best time to visit.
#9 of 12 months in Davos · #1317 of 1383 destinations to visit in September · comfort 30/100 (tier F)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Davos in September
Other months in Davos
A local ski school's guide is candid that Davos-Klosters weather varies a lot month to month and even week to week, worth checking the forecast close to a trip rather than trusting the calendar alone. Their broader advice for planning a first visit: decide whether you're a beginner or advanced skier before booking, since it changes which part of the resort actually suits the trip.
Add your own note from Davos's card on the map.
Davos climate normals — September
| Daytime high | 16°C / 61°F | 🙂 cool |
|---|---|---|
| Nighttime low | 6°C / 43°F | |
| Feels like (high) | 15°C / 59°F | |
| Rainfall | 129 mm / 5.1 in | 🌧 rainy |
| Rainy days | 15 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 6°C / 43°F | |
| Sunshine | 8.9 h/day | |
| Daylight | 12.5 h | |
| Wind | 7 km/h / 4 mph | |
| Snowfall | 19.2 cm / 7.6 in | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Davos 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 Davos'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 weatherDavos's weather peaks December–February, best around January.
Best weatherFair weatherToughest weather
What's on in Davos in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Opening
Mountain railways open for summer
1 May – 25 Oct · usuallyTrail seasonThe mountain railways run their discounted summer season from May Day to late October, with the guest card that comes with a hotel stay knocking the return fare on the five home mountains down to a flat rate. Source ↗
Nearby, and something's on
Within 300 km of Davos — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Davos?
Davos in September — FAQ
- Is September a good time to visit Davos?
- September in Davos: cool, rainy, with clean air — not the best time to visit. It ranks #9 of 12 months for Davos on SeasonMap's comfort score (30/100).
- What is the weather like in Davos in September?
- In September, Davos averages a daily high of 15.9°C and a low of 6.1°C, with about 129.1 mm of rain over roughly 15.4 rainy days.
- What is the air quality in Davos in September?
- Davos has a mean US Air Quality Index of about 39 in September.
- Does it snow in Davos in September?
- Davos sees roughly 19.2 cm of snowfall in September.
Other months in Davos
Compare Davos in September
Warmer or cooler than Davos in September
Similar destinations in Central Europe — September
Within 300 km: Sölden's Glacier skiing opens around 15 Sep – 15 Nov, and Füssen's Forggensee filled and boats running around 1 Jun – 15 Oct.