15.09
tue
tue
Day
64°F
E 5 mph
Precip.
3%
3%
Night
54°F
NW 5 mph
Precip.
5%
5%
16.09
wed
wed
Day
61°F
E 6 mph
Precip.
36%
36%
Night
50°F
SE 4 mph
Precip.
65%
65%
17.09
thu
thu
Day
48°F
SE 5 mph
Precip.
28%
28%
Night
46°F
SE 2 mph
Precip.
30%
30%
18.09
fri
fri
Day
50°F
S 6 mph
Precip.
19%
19%
Night
43°F
W 4 mph
Precip.
11%
11%
19.09
sat
sat
Day
55°F
SE 4 mph
Precip.
3%
3%
Night
46°F
W 2 mph
Precip.
20%
20%
20.09
sun
sun
Day
59°F
S 6 mph
Precip.
4%
4%
Night
50°F
NW 3 mph
Precip.
13%
13%
21.09
mon
mon
Day
63°F
S 5 mph
Precip.
13%
13%
Night
52°F
W 3 mph
Precip.
16%
16%
sea water
temperature
temperature
| Chamonix |
monthly
weather
weather
| Chamonix |
current
weather
weather
| Chamonix |
14 days
forecast
forecast
| Chamonix |
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: 04:12
September 15, tuesday
0600
50°F
NW
6 mph
6 mph
0900
57°F
N
3 mph
3 mph
1200
64°F
E
5 mph
5 mph
1500
68°F
E
6 mph
6 mph
1800
66°F
E
5 mph
5 mph
2100
55°F
N
5 mph
5 mph
September 16, wednesday
0000
54°F
NW
5 mph
5 mph
0300
54°F
NW
5 mph
5 mph
