14.09
mon
mon
Day
75°F
NE 4 mph
Precip.
3%
3%
Night
73°F
NW 4 mph
Precip.
7%
7%
15.09
tue
tue
Day
75°F
N 5 mph
Precip.
2%
2%
Night
72°F
E 1 mph
Precip.
6%
6%
16.09
wed
wed
Day
75°F
E 6 mph
Precip.
3%
3%
Night
72°F
SE 14 mph
Precip.
16%
16%
17.09
thu
thu
Day
72°F
SE 17 mph
Precip.
1%
1%
Night
70°F
SE 14 mph
Precip.
1%
1%
18.09
fri
fri
Day
70°F
SE 19 mph
Precip.
10%
10%
Night
72°F
SE 14 mph
Precip.
1%
1%
19.09
sat
sat
Day
72°F
SE 6 mph
Precip.
1%
1%
Night
70°F
NW 6 mph
Precip.
2%
2%
20.09
sun
sun
Day
73°F
NE 2 mph
Precip.
1%
1%
Night
72°F
N 1 mph
Precip.
5%
5%
21.09
mon
mon
Day
73°F
NE 4 mph
Precip.
2%
2%
Night
72°F
SE 4 mph
Precip.
4%
4%
22.09
tue
tue
Day
75°F
E 9 mph
Precip.
2%
2%
Night
72°F
SE 4 mph
Precip.
5%
5%
23.09
wed
wed
Day
72°F
SE 16 mph
Precip.
7%
7%
Night
70°F
NW 9 mph
Precip.
16%
16%
24.09
thu
thu
Day
66°F
S 8 mph
Precip.
12%
12%
Night
68°F
N 4 mph
Precip.
3%
3%
25.09
fri
fri
Day
70°F
E 6 mph
Precip.
1%
1%
Night
68°F
NW 5 mph
Precip.
2%
2%
26.09
sat
sat
Day
72°F
E 6 mph
Precip.
1%
1%
Night
70°F
SW 4 mph
Precip.
3%
3%
27.09
sun
sun
Day
72°F
E 4 mph
Precip.
2%
2%
Night
68°F
N 6 mph
Precip.
4%
4%
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: 22:34
September 15, tuesday
0000
73°F
NW
4 mph
4 mph
0300
73°F
W
2 mph
2 mph
0600
73°F
SW
2 mph
2 mph
0900
73°F
W
2 mph
2 mph
1200
75°F
N
5 mph
5 mph
1500
75°F
N
7 mph
7 mph
1800
75°F
N
5 mph
5 mph
2100
72°F
N
3 mph
3 mph
