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

7 Day Weather Forecast

09.09
wed
DAY
52°F
E 2 mph
precip
48%
NIGHT
54°F
S 5 mph
precip
28%
09.10
thu
DAY
58°F
SW 7 mph
precip
11%
NIGHT
58°F
S 4 mph
precip
13%
09.11
fri
DAY
64°F
SW 4 mph
precip
1%
NIGHT
60°F
SW 4 mph
precip
20%
09.12
sat
DAY
62°F
SW 6 mph
precip
15%
NIGHT
58°F
SW 2 mph
precip
8%
09.13
sun
DAY
70°F
S 2 mph
precip
1%
NIGHT
64°F
SW 3 mph
precip
16%
09.14
mon
DAY
70°F
S 6 mph
precip
2%
NIGHT
62°F
S 5 mph
precip
9%
09.15
tue
DAY
68°F
S 3 mph
precip
7%
NIGHT
62°F
SW 3 mph
precip
5%

Annecy Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

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

Annecy on the Weather Map

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