Average sea water temperature in September:
+66.2°F
| Minimum sea water temperature in September: | 75.7°F |
| Maximum sea water temperature in September: | 32.0°F |
Daily sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 70.9°F. The highest and lowest sea temperatures during the month were 75.7°F and 67.3°F.
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| Lausanne |
monthly
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| Lausanne |
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| Lausanne |
14 days
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| Lausanne |
Monthly sea water temperature in Lausanne, °F
Which Switzerland resorts have warmest sea in September?
| Place name | September 2026 | September 2025 |
|---|---|---|
| Vevey | 71.2°F | 68.4°F |
| Gstaad | 71.1°F | 68.5°F |
| Verbier | 71.1°F | 68.5°F |
| Montreux | 71.1°F | 68.5°F |
| Lausanne | 70.9°F | 68.1°F |
| Lake Geneva | 70.8°F | 68.0°F |
| Geneva | 70.3°F | 66.9°F |
| Winterthur | 70.0°F | 67.6°F |
| Zurich | 70.0°F | 67.6°F |
| St Gallen | 69.8°F | 66.8°F |
Best time for vacation in Lausanne
Lausanne on a weather map
Places in Switzerland:
Name
°F
24 Hours Forecast
Lausanne
Local time: 07:24
October 09, friday
0900

48°F
S
8 mph
8 mph
1200

54°F
SW
4 mph
4 mph
1500

57°F
NW
5 mph
5 mph
1800

55°F
NE
1 mph
1 mph
2100

54°F
S
2 mph
2 mph
October 10, saturday
0000

52°F
NE
6 mph
6 mph
0300

52°F
NE
8 mph
8 mph
0600

52°F
NE
8 mph
8 mph



























