Weather in Chamonix: July
| Average day temperature: | 63.7°F | |
| Average night temperature: | 45.8°F | |
| Sea water temperature: | 69.2°F | |
| Number of sunny days: | 15 days | |
| Day length: | 14.8 - 15.7 hours | |
| Number of rainy days: | 9 days | |
| Precipitation totals: | 4.6 in. | |
| more information | ||
14 days
forecast
forecast
| Chamonix |
sea water
temperature
temperature
| Chamonix |
Air temperature in July, °F
Show year:
2026
2025
2024
The highest day temperature during July of 2026 was 73°F. At the same time the lowest night temperature was 41°F. Daily and nightly averages during July were 65.5°F and 49.5°F.
Sea water temperature in Chamonix in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 76.2°F. The highest and lowest sea temperatures during the month were 79.9°F and 73.9°F.
Sunny, partly cloudy and cloudy days
Number of sunny, partly cloudy and cloudy days in July is almost equal.
Precipitation total in July, in.
Precipitation total value in Chamonix in July is 3.8 in. Other months of the year show relatively similar values.
Wind speed in July, mph
The average wind speed value in July is 4.2 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in July is: 9.4.
Best time for vacation in Chamonix
Chamonix on a weather map
Places in France:
Name
°F
24 Hours Forecast
Chamonix
Local time: 15:42
July 28, tuesday
1800

70°F
SE
5 mph
5 mph
2100

59°F
SE
1 mph
1 mph
July 29, wednesday
0000

59°F
NW
4 mph
4 mph
0300

57°F
NW
4 mph
4 mph
0600

55°F
NW
4 mph
4 mph
0900

64°F
NE
2 mph
2 mph
1200

70°F
E
4 mph
4 mph
1500

73°F
E
6 mph
6 mph


























