Mountain air

Interlaken weather in May

Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.

65

Holiday weather in May

Good

Best time to visit: May – October

Best for skiing: January – March

What is the weather like in Interlaken in May?

In May, Interlaken is mild: daytime highs average 17 °C, and nights cool down to about 7 °C. Expect around 6 hours of sunshine a day. It rains often – on about 16 days, adding up to 118 mm. All in all, May is a good month for a holiday in Interlaken.

May compared

How the weather changes from April to June. Tap a month to open it.

AprilAprMayMayJuneJun
Score536570
Day13°17°21°
Night2°7°11°
Sun6 h6 h7 h
Rain days131614

More details for May

Daylight
14 h 59 min05:55 – 20:54
UV index
8 · very highclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or more
Wind
11 km/haverage daily peak
Cloud cover
67 %on average
Hot days
0 days30 °C or more
Snow days
0 days1 cm or more of fresh snow
Time zone
UTC+2Europe/Zurich

How the score comes together

  • Temperatureweight 50 %100 %
  • Sunshineweight 20 %48 %
  • Few rainy daysweight 30 %18 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.

What to pack in May

  • Sunscreen
  • Sunglasses & sun hat
  • A jumper for the evenings
  • Rain jacket or umbrella

Interlaken in May: quick answers

Is Interlaken hot in May?

No. In May, Interlaken is mild: daytime highs average 17 °C and nights drop to about 7 °C.

Does it rain much in Interlaken in May?

It rains often – on about 16 days, adding up to 118 mm.

Interlaken month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)