26.08
wed
wed
Day
66°F
E 4 mph
Precip.
11%
11%
Night
57°F
NW 8 mph
Precip.
7%
7%
27.08
thu
thu
Day
73°F
NW 6 mph
Precip.
11%
11%
Night
57°F
NW 11 mph
Precip.
13%
13%
28.08
fri
fri
Day
57°F
E 6 mph
Precip.
49%
49%
Night
48°F
NE 4 mph
Precip.
35%
35%
29.08
sat
sat
Day
57°F
E 6 mph
Precip.
7%
7%
Night
50°F
NW 6 mph
Precip.
10%
10%
30.08
sun
sun
Day
66°F
E 5 mph
Precip.
7%
7%
Night
55°F
N 8 mph
Precip.
7%
7%
31.08
mon
mon
Day
63°F
NE 7 mph
Precip.
3%
3%
Night
50°F
NW 3 mph
Precip.
24%
24%
01.09
tue
tue
Day
68°F
E 6 mph
Precip.
3%
3%
Night
54°F
NW 7 mph
Precip.
58%
58%
sea water
temperature
temperature
| Chamonix |
monthly
weather
weather
| Chamonix |
current
weather
weather
| Chamonix |
14 days
forecast
forecast
| Chamonix |
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 76.8°F. The highest and lowest sea temperatures during the month were 79.2°F and 73.6°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 68.1°F. The highest and lowest sea temperatures during the month were 71.6°F and 64.8°F.
Air temperature in Chamonix, °F
Precipitation total in Chamonix, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Chamonix
Chamonix on a weather map
Places in France:
Name
°F
24 Hours Forecast
Chamonix
Local time: 03:38
August 26, wednesday
0600
54°F
NW
6 mph
6 mph
0900
61°F
N
3 mph
3 mph
1200
66°F
E
4 mph
4 mph
1500
72°F
E
6 mph
6 mph
1800
70°F
NE
2 mph
2 mph
2100
57°F
NW
9 mph
9 mph
August 27, thursday
0000
57°F
NW
8 mph
8 mph
0300
55°F
NW
9 mph
9 mph
