World Resorts France Cassis Weather

Cassis sea water temperature

Current sea water temperature:
+61.7°F
Minimum sea water temperature in December: 64.4°F
Maximum sea water temperature in December: 57.2°F
Average sea water temperature in December: 60.2°F

Sea water temperature for the last 10 days:

December 4 61.7°F November 29 62.1°F
December 3 61.9°F November 28 61.5°F
December 2 61.5°F November 27 61.5°F
December 1 62.4°F November 26 62.2°F
November 30 61.0°F November 25 62.6°F

When is the warmest sea in Cassis?

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

Monthly Sea Temperatures in Cassis, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 74.7°F. The highest and lowest sea temperatures during the month were 79.2°F and 67.6°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 73.1°F. The highest and lowest sea temperatures during the month were 81.1°F and 64.6°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 70.7°F. The highest and lowest sea temperatures during the month were 74.5°F and 66.6°F.

Best time for vacation in Cassis

Sunniest months:
July 29 days
August 28 days
June 25 days
Warmest months:
August 81.8 °F
July 81.7 °F
June 76.3 °F
Warmest sea temp:
August 74.6 °F
July 72.8 °F
September 72.3 °F
Coldest months:
January 51.4 °F
February 52.3 °F
December 53.9 °F
Rainiest months:
November 4 days
October 3 days
December 3 days
Windiest months:
January 13.4 mph
March 13.0 mph
February 12.7 mph

Cassis on a weather map

Cassis
+46°F
SE 17 mph
Feels like: +39°F
Precip.: 69%
Places in France:
Name
°F
+48°F
+50°F
+50°F
+45°F
+46°F
+52°F
+46°F
+50°F
+46°F
+45°F
+37°F
+45°F
+46°F
+43°F
+45°F
24 Hours Forecast
Cassis
Local time: 05:46
December 05, friday
0600
46°F
SE
17 mph
0900
46°F
SE
19 mph
1200
50°F
SE
21 mph
1500
52°F
SE
16 mph
1800
48°F
SE
13 mph
2100
48°F
S
8 mph
December 06, saturday
0000
48°F
SE
10 mph
0300
48°F
SE
10 mph
Units of measurement: °C / °F