Measurements:
°C
°F
Cassis
70°F
W 23 mph
Feels like: 70°F
Precip: 41%
World Resorts France Cassis Weather

Cassis Sea Water Temperature

Current Sea Water Temperature:
+74.0°F
Maximum Sea Water Temperature in October: 78.2°F
Minimum Sea Water Temperature in October: 62.0°F
Average water temperature in October: 70.4°F

Sea Water Temperature for the Last 10 Days:

October 19 74.0°F October 14 73.0°F
October 18 74.4°F October 13 73.0°F
October 17 74.4°F October 12 73.8°F
October 16 75.0°F October 11 75.0°F
October 15 74.0°F October 10 75.0°F

When is the Warmest Sea for Cassis?

According to our data for the last three years for Cassis the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Cassis was 81.4°F. The maximum and minimum values were 74.6°F and 86.4°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Cassis was 80.4°F. The maximum and minimum values were 75.4°F and 84.4°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Cassis was 77.1°F. The maximum and minimum values were 72.8°F and 80.8°F respectively.

Best Time to Visit Cassis
The most sunny months:
July 29 days
August 28 days
June 25 days
The most warm months:
August 85.4 °F
July 85.4 °F
June 79.4 °F
Warmest sea temperature:
August 77.6 °F
July 75.7 °F
September 74.9 °F
The most cold months:
January 51.5 °F
February 52.7 °F
December 54.4 °F
The most rainy months:
November 4 days
October 3 days
December 3 days
The most windy months:
January 13 mph
March 13 mph
February 12 mph

Cassis on the Weather Map

France Resorts:
NAME
F°
Antibes +72
Bordeaux +62
Cannes +72
Corsica +74
Deauville +56
Etretat +56
Marseilles +70
Menton +74
Montpellier +70
Nice +70
Paris +56
Perpignan +56
Saint-Tropez +72
Toulon +72
Toulouse +52
24 Hours Weather Forecast
Cassis
Local time: 15:28
19 oct, monday
1800 70°F
W
23 mph
2100 70°F
W
21 mph
20 oct, tuesday
0000 70°F
W
21 mph
0300 70°F
W
22 mph
0600 66°F
NW
22 mph
0900 68°F
NW
21 mph
1200 68°F
NW
17 mph
1500 68°F
NW
22 mph