SeasonMapGrindelwald (Jungfrau) weather in August
Switzerland
August in Grindelwald: warm, soaked, with clean air — fine if you can take 18 rainy days.
#6 of 12 months in Grindelwald · #745 of 1383 destinations to visit in August · comfort 77/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Grindelwald in August
Other months in Grindelwald
Grindelwald's forum calls September usually fantastic, highs around 70°F with sunny stretches and comparatively little rain, though a cold front can still drop temperatures early in the month. Regulars flag frost as typical around 1500m by late September, and note the Jungfraujoch stays cold enough to feel like winter even in warm layers — pack for both T-shirt afternoons in the valley and near-freezing conditions higher up.
Add your own note from Grindelwald's card on the map.
Grindelwald climate normals — August
| Daytime high | 22°C / 72°F | 🌤 warm |
|---|---|---|
| Nighttime low | 13°C / 55°F | |
| Feels like (high) | 25°C / 77°F | |
| Rainfall | 229 mm / 9 in | ⛈ soaked |
| Rainy days | 18 days | |
| Humidity | 82% | 💦 very humid |
| Dew point | 14°C / 57°F | |
| Sunshine | 10.7 h/day | |
| Daylight | 14.1 h | |
| Wind | 7 km/h / 4 mph | |
| Snowfall | 1.3 cm / 0.5 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 Grindelwald in August
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.
BusySummer holidays in Switzerland, school holidays in 7 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Grindelwald'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 weatherGrindelwald's best weather comes in April, May and September — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Grindelwald in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Trail and hut season
15 Jun – 15 Oct · usuallyTrail seasonBook earlyThe Eiger trail and the huts under the north face clear from mid-June, and the walking runs to about the middle of October before the first snow closes the higher paths.
Nearby, and something's on
Within 300 km of Grindelwald — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Grindelwald?
Grindelwald in August — FAQ
- Is August a good time to visit Grindelwald?
- August in Grindelwald: warm, soaked, with clean air — fine if you can take 18 rainy days. It ranks #6 of 12 months for Grindelwald on SeasonMap's comfort score (77/100).
- What is the weather like in Grindelwald in August?
- In August, Grindelwald averages a daily high of 22.4°C and a low of 13°C, with about 228.9 mm of rain over roughly 18.3 rainy days.
- What is the air quality in Grindelwald in August?
- Grindelwald has a mean US Air Quality Index of about 39 in August.
- Does it snow in Grindelwald in August?
- Grindelwald sees roughly 1.3 cm of snowfall in August.
Other months in Grindelwald
Compare Grindelwald in August
Warmer or cooler than Grindelwald in August
Similar destinations in Central Europe — August
Within 300 km: Interlaken's Lake steamers on summer timetable on 9 May – 11 Oct, and Bern's Buskers Bern on 6–8 Aug.