SeasonMapBern weather in May
Switzerland
May in Bern: nice, rainy, with clean air — a great time to visit.
#5 of 12 months in Bern · #790 of 1383 destinations to visit in May · comfort 78/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Bern in May
Other months in Bern
Switzerland's forum calls July and August the warmest, sunniest months for the lower cities, with some years staying dry and sunny throughout and others bringing rain most days — it varies a lot year to year. Regulars' standard packing list: a t-shirt, a fleece layer, and a proper rain coat, since mountain-influenced weather can change quickly even down in Bern.
Add your own note from Bern's card on the map.
Bern climate normals — May
| Daytime high | 18°C / 65°F | 😎 nice |
|---|---|---|
| Nighttime low | 8°C / 46°F | |
| Feels like (high) | 18°C / 64°F | |
| Rainfall | 129 mm / 5.1 in | 🌧 rainy |
| Rainy days | 16 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 8°C / 47°F | |
| Sunshine | 10.2 h/day | |
| Daylight | 15.1 h | |
| Wind | 11 km/h / 7 mph | |
| Snowfall | 0.7 cm / 0.3 in | |
| Air quality (US AQI) | 43 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Bern in May
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.
BusySpring holidays in Switzerland, school holidays in 4 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Bern'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 weatherBern's weather peaks June–August.
Best weatherFair weatherToughest weather
What's on in Bern in May
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Aare swimming season
20 May – 15 Sep · usuallySummer season opensThe city swims in the river, not a pool: in at Eichholz, out at the Marzili, and the current does the work. The Aare stays glacier-cold well into June and the exit steps are the whole skill.
Nearby, and something's on
Within 300 km of Bern — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Bern?
Bern in May — FAQ
- Is May a good time to visit Bern?
- May in Bern: nice, rainy, with clean air — a great time to visit. It ranks #5 of 12 months for Bern on SeasonMap's comfort score (78/100).
- What is the weather like in Bern in May?
- In May, Bern averages a daily high of 18.2°C and a low of 7.8°C, with about 128.9 mm of rain over roughly 16.2 rainy days.
- What is the air quality in Bern in May?
- Bern has a mean US Air Quality Index of about 43 in May.
Other months in Bern
Warmer or cooler than Bern in May
Similar destinations in Central Europe — May
Within 300 km: Interlaken's Lake steamers on summer timetable on 9 May – 11 Oct, and Montreux's Narcissus on the slopes around 15 May – 10 Jun.