World Resorts France Cassis Weather

Cassis sea water temperature

Current sea water temperature:
+57.7°F
Minimum sea water temperature in January: 60.8°F
Maximum sea water temperature in January: 55.4°F
Average sea water temperature in January: 57.7°F

Sea water temperature for the last 10 days:

January 12 57.7°F January 7 58.6°F
January 11 57.9°F January 6 59.0°F
January 10 58.1°F January 5 58.8°F
January 9 57.7°F January 4 59.2°F
January 8 58.5°F January 3 59.4°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
+50°F
W 11 mph
Feels like: +46°F
Precip.: 65%
Places in France:
Name
°F
+32°F
+45°F
+50°F
+46°F
+46°F
+41°F
+50°F
+48°F
+48°F
+43°F
+48°F
+48°F
+43°F
+28°F
+50°F
24 Hours Forecast
Cassis
Local time: 23:15
January 13, tuesday
0000
50°F
W
11 mph
0300
50°F
W
11 mph
0600
50°F
W
12 mph
0900
52°F
NW
12 mph
1200
54°F
NW
14 mph
1500
57°F
NW
17 mph
1800
54°F
NW
16 mph
2100
54°F
NW
16 mph
Units of measurement: °C / °F