Switzerland Weather September
To help you choose the best time to travel, you can find climate data below on the weather in Switzerland in September.
| Switzerland Weather September: | Zurich | Geneva | |
 | average daily high | +18.8°C | +20.9°C |
 | average daily low | +10.5°C | +10.5°C |
 | sea temperature | +18.3°C | |
 | daylight hours | 13.0h | 13.0h |
 | sunny/overcast hours | 5.0/8h | 6.2/6.8h |
 | average monthly precipitation | 99 mm | 100 mm |
Temperature in Switzerland
The average daily maximum in September is +18.8 — +20.9°C, and the minimum +10.5 — +10.5°C.
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Sea temperature
The average monthly temperature in the Lake Geneva on the beaches of Geneva in September is +18.3 degrees.
The water is considered very cool, but some hardy people might bathe in it for 10-15 minutes.
Precipitation
The normal amount of precipitation for September is from 99 to 100 mm, which may cause a change of plans on certain days.