Measurements:
°C
°F
CURRENT WEATHER
03:51
Cassis
80°F
SE 6 mph
Feels like: 84°F
Precip: 18%
World Resorts France Cassis Weather

7 Day Weather Forecast

09.09
wed
DAY
76°F
SE 15 mph
precip
17%
NIGHT
72°F
SE 19 mph
precip
10%
09.10
thu
DAY
76°F
E 8 mph
precip
2%
NIGHT
76°F
W 4 mph
precip
3%
09.11
fri
DAY
76°F
SE 16 mph
precip
1%
NIGHT
76°F
W 9 mph
precip
12%
09.12
sat
DAY
78°F
E 6 mph
precip
3%
NIGHT
76°F
NW 6 mph
precip
4%
09.13
sun
DAY
78°F
NE 5 mph
precip
3%
NIGHT
76°F
N 7 mph
precip
7%
09.14
mon
DAY
78°F
NE 5 mph
precip
2%
NIGHT
76°F
NW 8 mph
precip
6%
09.15
tue
DAY
80°F
N 4 mph
precip
2%
NIGHT
76°F
NW 1 mph
precip
5%

Cassis Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Cassis was 21.5°F. The maximum and minimum values were 19.2°F and 23.6°F respectively.

Cassis on the Weather Map

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 74.8 °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
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