26.08
wed
wed
Day
79°F
N 14 mph
Precip.
12%
12%
Night
77°F
W 9 mph
Precip.
14%
14%
27.08
thu
thu
Day
84°F
NW 25 mph
Precip.
13%
13%
Night
79°F
NW 14 mph
Precip.
19%
19%
28.08
fri
fri
Day
75°F
NE 6 mph
Precip.
18%
18%
Night
75°F
SE 17 mph
Precip.
1%
1%
29.08
sat
sat
Day
77°F
SE 18 mph
Precip.
1%
1%
Night
77°F
SE 9 mph
Precip.
2%
2%
30.08
sun
sun
Day
77°F
N 9 mph
Precip.
2%
2%
Night
75°F
SE 2 mph
Precip.
3%
3%
31.08
mon
mon
Day
77°F
N 6 mph
Precip.
3%
3%
Night
73°F
E 2 mph
Precip.
17%
17%
01.09
tue
tue
Day
79°F
NE 5 mph
Precip.
4%
4%
Night
75°F
NW 4 mph
Precip.
17%
17%
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 78.9°F. The highest and lowest sea temperatures during the month were 82.8°F and 72.1°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.
Air temperature in Cassis, °F
Precipitation total in Cassis, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Cassis
Cassis on a weather map
Places in France:
Name
°F
24 Hours Forecast
Cassis
Local time: 03:33
August 26, wednesday
0600
73°F
NE
2 mph
2 mph
0900
75°F
W
7 mph
7 mph
1200
79°F
N
14 mph
14 mph
1500
79°F
N
15 mph
15 mph
1800
82°F
NW
17 mph
17 mph
2100
79°F
NW
11 mph
11 mph
August 27, thursday
0000
77°F
W
9 mph
9 mph
0300
79°F
W
8 mph
8 mph
