Measurements:
°C
°F
Annecy
66°F
NW 2 mph
Feels like: 66°F
Precip: 32%
World Resorts France Annecy Weather

Annecy Sea Water Temperature

Current Sea Water Temperature:
+76.6°F
Maximum Sea Water Temperature in September: 77.0°F
Minimum Sea Water Temperature in September: 30.0°F
Average water temperature in September: 66.1°F

Sea Water Temperature for the Last 10 Days:

September 08 76.6°F September 03 73.2°F
September 07 77.0°F September 02 74.4°F
September 06 75.6°F September 01 74.0°F
September 05 74.8°F August 31 74.2°F
September 04 73.8°F August 30 75.2°F

When is the Warmest Sea for Annecy?

According to our data for the last three years for Annecy the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Annecy was 78.0°F. The maximum and minimum values were 72.8°F and 81.8°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Annecy was 78.8°F. The maximum and minimum values were 75.8°F and 80.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Annecy was 68.7°F. The maximum and minimum values were 65.6°F and 71.6°F respectively.

Best Time to Visit Annecy
The most sunny months:
August 20 days
July 17 days
September 16 days
The most warm months:
August 80.6 °F
July 80.6 °F
June 76.1 °F
Warmest sea temperature:
August 70.2 °F
July 69.5 °F
September 66.0 °F
The most cold months:
January 37.1 °F
December 39.8 °F
February 41.9 °F
The most rainy months:
May 9 days
June 8 days
July 6 days
The most windy months:
April 4 mph
May 4 mph
January 4 mph

Annecy on the Weather Map

France Resorts:
NAME
Antibes +78
Arcachon +68
Cannes +78
Corsica +78
Deauville +58
Etretat +64
Marseilles +82
Menton +80
Montpellier +78
Nice +74
Paris +60
Perpignan +74
Saint-Tropez +82
Toulon +82
Toulouse +68
24 Hours Weather Forecast
Annecy
Local time: 02:25
09 sep, wednesday
0300 66°F
NW
2 mph
0600 66°F
E
4 mph
0900 54°F
E
4 mph
1200 52°F
E
2 mph
1500 52°F
W
1 mph
1800 58°F
W
2 mph
2100 58°F
S
5 mph
10 sep, thursday
0000 54°F
S
5 mph