At this moment warmest sea in Switzerland was observed in the following locations: Winterthur, Zurich, Gstaad.
You can find the full list of Switzerland marine locations in the table below. It shows current sea temperature values and averages for current and upcoming months.
| Place name | Current sea temp |
September 2025 | October 2025 |
|---|---|---|---|
| Winterthur | 71.1°F | 67.6°F | 58.4°F |
| Zurich | 70.9°F | 67.6°F | 58.4°F |
| Gstaad | 69.4°F | 68.5°F | 60.7°F |
| Verbier | 69.4°F | 68.5°F | 60.7°F |
| Montreux | 69.4°F | 68.5°F | 60.7°F |
| St Gallen | 69.4°F | 66.8°F | 57.9°F |
| Lake Geneva | 69.3°F | 68.0°F | 60.4°F |
| Geneva | 69.3°F | 66.9°F | 60.7°F |
| Vevey | 68.7°F | 68.4°F | 60.7°F |
| Lausanne | 68.2°F | 68.1°F | 60.6°F |
Charts below show average sea water temperature for Switzerland resorts with the warmest sea.
You can also check other months of the year to see sea temperature of Switzerland resorts at that time.
Places in Switzerland:
Name
°F
