World Resorts France Chamonix Weather

Chamonix sea water temperature

Current sea water temperature:
+67.3°F
Minimum sea water temperature in October: 67.6°F
Maximum sea water temperature in October: 32.0°F
Average sea water temperature in October: 58.8°F

Sea water temperature for the last 10 days:

October 4 67.3°F September 29 67.6°F
October 3 67.6°F September 28 67.6°F
October 2 67.5°F September 27 68.0°F
October 1 66.9°F September 26 68.0°F
September 30 67.3°F September 25 68.0°F

When is the warmest sea in Chamonix?

Based on the data about daily sea water temperature for the last three years the warmest sea in Chamonix was noticed in August, July and September.

Monthly Sea Temperatures in Chamonix, °F

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 76.3°F. The highest and lowest sea temperatures during the month were 79.2°F and 73.6°F.

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 76.1°F. The highest and lowest sea temperatures during the month were 79.9°F and 73.9°F.

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 70.9°F. The highest and lowest sea temperatures during the month were 74.8°F and 67.3°F.

Best time for vacation in Chamonix

Sunniest months:
August 17 days
October 16 days
July 15 days
Warmest months:
July 63.7 °F
August 63.1 °F
June 60.3 °F
Warmest sea temp:
August 70.3 °F
July 69.2 °F
September 66.1 °F
Coldest months:
January 27.0 °F
December 29.7 °F
February 30.1 °F
Rainiest months:
June 11 days
May 10 days
July 9 days
Windiest months:
January 4.9 mph
December 4.8 mph
February 4.7 mph

Chamonix on a weather map

Chamonix
+39°F
NW 2 mph
Feels like: +39°F
Precip.: 12%
Places in France:
Name
°F
+72°F
+61°F
+52°F
+72°F
+68°F
+70°F
+72°F
+68°F
+66°F
+61°F
+68°F
+72°F
+68°F
+64°F
+61°F
24 Hours Forecast
Chamonix
Local time: 05:58
October 05, monday
0600
39°F
NW
2 mph
0900
55°F
W
2 mph
1200
63°F
SE
4 mph
1500
64°F
SE
6 mph
1800
61°F
SE
4 mph
2100
45°F
NW
1 mph
October 06, tuesday
0000
41°F
NW
4 mph
0300
41°F
NW
5 mph
Units of measurement: °C / °F