18.12
thu
thu
Day
57°F
W 15 mph
Precip.
0%
0%
Night
55°F
W 16 mph
Precip.
68%
68%
19.12
fri
fri
Day
57°F
W 15 mph
Precip.
66%
66%
Night
55°F
W 11 mph
Precip.
0%
0%
20.12
sat
sat
Day
54°F
W 12 mph
Precip.
100%
100%
Night
55°F
W 17 mph
Precip.
100%
100%
21.12
sun
sun
Day
55°F
N 6 mph
Precip.
100%
100%
Night
54°F
N 8 mph
Precip.
76%
76%
22.12
mon
mon
Day
55°F
W 22 mph
Precip.
100%
100%
Night
54°F
W 21 mph
Precip.
100%
100%
23.12
tue
tue
Day
54°F
W 21 mph
Precip.
100%
100%
Night
54°F
W 22 mph
Precip.
100%
100%
24.12
wed
wed
Day
52°F
NW 17 mph
Precip.
100%
100%
Night
52°F
W 11 mph
Precip.
100%
100%
25.12
thu
thu
Day
50°F
S 4 mph
Precip.
100%
100%
Night
48°F
SE 3 mph
Precip.
69%
69%
26.12
fri
fri
Day
46°F
SE 6 mph
Precip.
100%
100%
Night
50°F
W 9 mph
Precip.
54%
54%
27.12
sat
sat
Day
54°F
SW 11 mph
Precip.
21%
21%
Night
50°F
SW 7 mph
Precip.
77%
77%
28.12
sun
sun
Day
52°F
W 10 mph
Precip.
49%
49%
Night
48°F
W 15 mph
Precip.
0%
0%
29.12
mon
mon
Day
48°F
W 4 mph
Precip.
52%
52%
Night
46°F
E 3 mph
Precip.
75%
75%
30.12
tue
tue
Day
46°F
E 6 mph
Precip.
0%
0%
Night
41°F
SE 12 mph
Precip.
0%
0%
31.12
wed
wed
Day
43°F
SE 25 mph
Precip.
0%
0%
Night
46°F
SE 24 mph
Precip.
0%
0%
sea water
temperature
temperature
| La Seyne sur Mer |
monthly
weather
weather
| La Seyne sur Mer |
current
weather
weather
| La Seyne sur Mer |
7 days
forecast
forecast
| La Seyne sur Mer |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 61.3°F. The highest and lowest sea temperatures during the month were 62.1°F and 60.6°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 58.1°F. The highest and lowest sea temperatures during the month were 59.0°F and 57.2°F.
Air temperature in La Seyne sur Mer, °F
Precipitation total in La Seyne sur Mer, in.
* Charts above show average data for the last 3 years.
Best time for vacation in La Seyne sur Mer
La Seyne sur Mer on a weather map
Places in France:
Name
°F
24 Hours Forecast
La Seyne sur Mer
Local time: 02:44
December 18, thursday
0300
55°F
W
9 mph
9 mph
0600
54°F
SW
10 mph
10 mph
0900
54°F
W
14 mph
14 mph
1200
57°F
W
15 mph
15 mph
1500
57°F
W
17 mph
17 mph
1800
57°F
W
17 mph
17 mph
2100
55°F
W
17 mph
17 mph
December 19, friday
0000
55°F
W
16 mph
16 mph
