Climate averages 1991–2020
Basel weather
in June.
A warm, wet month: the 3rd warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Basel: daytime highs average 22.3°C and nights cool to about 12.7°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 118 mm of rain on roughly 16 days, which makes June a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 54 min on an average June day.
The nearest other city in this atlas is Mulhouse (28 km away). In June its highs average 22.1°C, about as warm as Basel, with 80 mm of rain.
Among the 8 cities listed in Switzerland, Basel ranks 1st of 8 for the warmest June highs and 4th of 8 for the driest June (rainfall, lowest first). The mean June high of those 8 cities is 21.0°C; Basel is 1.4°C warmer than that mean.
From June to July, average highs rise by 2.2°C to 24.5°C, and monthly rainfall rises from 118 mm to 121 mm.
The annual picture
June in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Basel climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.4°C-1.7°C | -1.7°C | 80 | 13.5 | 8.99 h |
| February | 6.9°C-1.5°C | -1.5°C | 73 | 11.7 | 10.210 h |
| March | 11.1°C1.4°C | 1.4°C | 83 | 13.5 | 11.912 h |
| April | 15.0°C4.6°C | 4.6°C | 90 | 14.1 | 13.614 h |
| May | 18.7°C8.9°C | 8.9°C | 129 | 16.8 | 15.115 h |
| June, selected | 22.3°C12.7°C | 12.7°C | 118 | 15.8 | 15.916 h |
| July | 24.5°C14.8°C | 14.8°C | 121 | 15.4 | 15.616 h |
| August | 24.5°C14.9°C | 14.9°C | 125 | 15.1 | 14.314 h |
| September | 20.1°C10.8°C | 10.8°C | 95 | 12.6 | 12.613 h |
| October | 15.4°C6.7°C | 6.7°C | 97 | 13.2 | 10.911 h |
| November | 9.4°C2.1°C | 2.1°C | 94 | 13.0 | 9.49 h |
| December | 5.8°C-0.8°C | -0.8°C | 101 | 14.1 | 8.59 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Mulhouse in JuneFrance · 28 kmHigh 22.1°C · Low 12.9°C · 80 mm rain
- Freiburg in JuneGermany · 53 kmHigh 22.4°C · Low 13.5°C · 89 mm rain
- Bern in JuneSwitzerland · 69 kmHigh 19.8°C · Low 10.8°C · 106 mm rain
- Zürich in JuneSwitzerland · 76 kmHigh 21.4°C · Low 12.5°C · 143 mm rain
- Luzern in JuneSwitzerland · 79 kmHigh 21.2°C · Low 12.1°C · 200 mm rain
- Winterthur in JuneSwitzerland · 87 kmHigh 21.2°C · Low 12.3°C · 113 mm rain
- Villingen-Schwenningen in JuneGermany · 89 kmHigh 19.3°C · Low 10.6°C · 126 mm rain
- Strasbourg in JuneFrance · 115 kmHigh 22.5°C · Low 13.2°C · 79 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Basel) is explained once on the Basel year overview and on the Sources, method and limits page.