🇨🇭 Weather in Interlaken in May
This is what the weather in Interlaken (Bernese Oberland, Switzerland) was like in May in 2017–2026.
Key facts at a glance
Avg. daytime high
10.4 °C
7.2 °C – 12.9 °C
Avg. night-time low
1.9 °C
-1.3 °C – 4.2 °C
Avg. rain days in period
21.7
70 % of days · ≥ 1.0 mm
Avg. precipitation in period
148 mm
80.5 mm – 252 mm
Avg. cloud cover
70 %
This data source has no sunshine hours – average cloud cover shown instead.
Avg. sea temperature
–
No sea nearby – no sea temperature.
Extremes: Highest temperature 20.7 °C (25 May 2026) · Lowest temperature -8.3 °C (6 May 2019) · Avg. daily peak wind 12 km/h
Weather mix of all days
- 37Sunny
- 44Partly cloudy
- 12Cloudy
- 107Light rain
- 110Rain
Summary
- On average 10.4 °C during the day and 1.9 °C at night.
- On average 21.7 rain days (Rain day = at least 1.0 mm of precipitation) with 148 mm of precipitation in total.
- Prevailing: Rain.
- Warmest year: 2022 (avg. 12.9 °C), coolest: 2019 (avg. 7.2 °C).
- Wettest year: 2024 (252 mm), driest: 2026 (80.5 mm).
- Extremes: 20.7 °C on 25 May 2026 and -8.3 °C on 6 May 2019.
Overall values from all 10 years. How is this calculated?
Charts
Temperatures per year
Average over your travel period
Precipitation & rain days
Year by year
2026
Avg. max11.9°Avg. min2.8°- Rain days
- 14 Rain days
- Precipitation
- 80.5 mm
- Avg. cloud cover
- 63 % cloudy
- Sea temperature
- –
Max 20.7 °C · Min -4.3 °C
2025
Avg. max10.4°Avg. min1.8°- Rain days
- 19 Rain days
- Precipitation
- 154 mm
- Avg. cloud cover
- 69 % cloudy
- Sea temperature
- –
Max 19.5 °C · Min -3.0 °C
2024
Avg. max9.5°Avg. min2.1°- Rain days
- 28 Rain days
- Precipitation
- 252 mm
- Avg. cloud cover
- 82 % cloudy
- Sea temperature
- –
Max 14.9 °C · Min -1.3 °C
2023
Avg. max10.4°Avg. min2.2°- Rain days
- 28 Rain days
- Precipitation
- 186 mm
- Avg. cloud cover
- 74 % cloudy
- Sea temperature
- –
Max 16.2 °C · Min -1.5 °C
2022
Avg. max12.9°Avg. min4.2°- Rain days
- 21 Rain days
- Precipitation
- 119 mm
- Avg. cloud cover
- 64 % cloudy
- Sea temperature
- –
Max 19.6 °C · Min -1.8 °C
2021
Avg. max7.4°Avg. min-1.2°- Rain days
- 22 Rain days
- Precipitation
- 155 mm
- Avg. cloud cover
- 78 % cloudy
- Sea temperature
- –
Max 13.9 °C · Min -6.5 °C
2020
Avg. max11.8°Avg. min2.2°- Rain days
- 15 Rain days
- Precipitation
- 124 mm
- Avg. cloud cover
- 56 % cloudy
- Sea temperature
- –
Max 16.8 °C · Min -1.9 °C
2019
Avg. max7.2°Avg. min-1.3°- Rain days
- 22 Rain days
- Precipitation
- 133 mm
- Avg. cloud cover
- 72 % cloudy
- Sea temperature
- –
Max 14.3 °C · Min -8.3 °C
2018
Avg. max11.3°Avg. min3.8°- Rain days
- 28 Rain days
- Precipitation
- 142 mm
- Avg. cloud cover
- 75 % cloudy
- Sea temperature
- –
Max 16.4 °C · Min -1.5 °C
2017
Avg. max11.1°Avg. min2.1°- Rain days
- 20 Rain days
- Precipitation
- 130 mm
- Avg. cloud cover
- 68 % cloudy
- Sea temperature
- –
Max 18.7 °C · Min -5.1 °C
Frequently asked questions
- How warm is it in Interlaken in May?
- Daytime highs averaged 10.4 °C, night-time lows 1.9 °C. The highest value of the past 10 years was 20.7 °C (25 May 2026), the lowest -8.3 °C (6 May 2019).
- How often does it rain in Interlaken in May?
- On average there were 21.7 rain days (at least 1 mm) with 148 mm of precipitation in total.
Check your exact travel dates
Choose your travel period – we show the weather for exactly those days.
Other destinations in May
Data sources
- Weather data
- Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains. - Sea temperature
- MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis) - Place search
- Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)