Current sea water temperature:
+60.8°F
| Minimum sea water temperature in December: | 64.4°F |
| Maximum sea water temperature in December: | 57.6°F |
| Average sea water temperature in December: | 60.5°F |
| more information | |
14 days
forecast
forecast
| La Seyne sur Mer |
monthly
weather
weather
| La Seyne sur Mer |
Sea water temperature for the last 10 days:
| December 21 | 60.8°F | December 16 | 60.8°F |
| December 20 | 61.0°F | December 15 | 61.0°F |
| December 19 | 61.0°F | December 14 | 61.2°F |
| December 18 | 61.2°F | December 13 | 61.2°F |
| December 17 | 61.5°F | December 12 | 61.2°F |
Monthly sea water temperature, °F
When is the warmest sea in La Seyne sur Mer?
Based on the data about daily sea water temperature for the last three years the warmest sea in La Seyne sur Mer was noticed in August, July and September.
Monthly Sea Temperatures in La Seyne sur Mer, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 75.8°F. The highest and lowest sea temperatures during the month were 79.5°F and 71.2°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 74.6°F. The highest and lowest sea temperatures during the month were 82.0°F and 67.3°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 71.1°F. The highest and lowest sea temperatures during the month were 73.4°F and 66.7°F.
current
weather
weather
| La Seyne sur Mer |
weather in
December
December
| La Seyne sur Mer |
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: 19:02
December 21, sunday
2100
52°F
W
32 mph
32 mph
December 22, monday
0000
52°F
W
30 mph
30 mph
0300
52°F
W
26 mph
26 mph
0600
54°F
W
21 mph
21 mph
0900
52°F
W
26 mph
26 mph
1200
54°F
W
29 mph
29 mph
1500
52°F
W
27 mph
27 mph
1800
55°F
W
27 mph
27 mph
