Measurements:
°C
°F
CURRENT WEATHER
22:20
Geneva
74°F
N 5 mph
Feels like: 80°F
Precip: 19%
World Resorts Switzerland Geneva Weather

7 Day Weather Forecast

09.08
tue
DAY
84°F
NE 9 mph
precip
1%
NIGHT
68°F
N 6 mph
precip
36%
09.09
wed
DAY
56°F
S 3 mph
precip
71%
NIGHT
54°F
SW 9 mph
precip
26%
09.10
thu
DAY
60°F
SW 9 mph
precip
16%
NIGHT
60°F
SW 3 mph
precip
10%
09.11
fri
DAY
64°F
SW 5 mph
precip
15%
NIGHT
62°F
W 3 mph
precip
18%
09.12
sat
DAY
66°F
SW 14 mph
precip
9%
NIGHT
60°F
NW 2 mph
precip
5%
09.13
sun
DAY
68°F
SW 3 mph
precip
2%
NIGHT
64°F
NW 1 mph
precip
4%
09.14
mon
DAY
70°F
SW 7 mph
precip
3%
NIGHT
64°F
W 2 mph
precip
8%

Geneva Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Geneva was 19.4°F. The maximum and minimum values were 17.8°F and 20.8°F respectively.

Geneva on the Weather Map

Best Time to Visit Geneva
The most sunny months:
August 19 days
July 18 days
September 15 days
The most warm months:
August 79.9 °F
July 79.5 °F
June 75.4 °F
Warmest sea temperature:
August 70.2 °F
July 69.5 °F
September 66.0 °F
The most cold months:
January 37.2 °F
December 39.9 °F
February 41.9 °F
The most rainy months:
May 7 days
June 7 days
July 6 days
The most windy months:
January 5 mph
February 4 mph
April 4 mph
more details