Measurements:
°C
°F
La Seyne sur Mer
74°F
W 13 mph
Feels like: 80°F
Precip: 17%
World Resorts France La Seyne sur Mer Weather

La Seyne sur Mer Sea Water Temperature

Current Sea Water Temperature:
+78.2°F
Maximum Sea Water Temperature in September: 84.2°F
Minimum Sea Water Temperature in September: 67.0°F
Average water temperature in September: 75.5°F

Sea Water Temperature for the Last 10 Days:

September 28 78.2°F September 23 77.6°F
September 27 78.4°F September 22 76.6°F
September 26 78.2°F September 21 75.0°F
September 25 78.4°F September 20 75.0°F
September 24 78.0°F September 19 75.8°F

When is the Warmest Sea for La Seyne sur Mer?

According to our data for the last three years for La Seyne sur Mer the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for La Seyne sur Mer was 82.1°F. The maximum and minimum values were 76.4°F and 86.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for La Seyne sur Mer was 81.8°F. The maximum and minimum values were 76.0°F and 85.4°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for La Seyne sur Mer was 78.2°F. The maximum and minimum values were 75.0°F and 82.2°F respectively.

Best Time to Visit La Seyne sur Mer
The most sunny months:
July 29 days
August 28 days
June 25 days
The most warm months:
August 86.2 °F
July 86.1 °F
June 79.9 °F
Warmest sea temperature:
August 78.5 °F
July 76.7 °F
September 75.5 °F
The most cold months:
January 52.9 °F
February 54.3 °F
December 55.7 °F
The most rainy months:
November 4 days
February 3 days
March 3 days
The most windy months:
January 13 mph
March 13 mph
December 12 mph

La Seyne sur Mer on the Weather Map

France Resorts:
NAME
F°
Antibes +74
Bordeaux +68
Cannes +74
Corsica +70
Deauville +64
Etretat +66
Marseilles +74
Menton +76
Montpellier +74
Nice +68
Paris +68
Perpignan +72
Saint-Tropez +74
Toulon +76
Toulouse +68
24 Hours Weather Forecast
La Seyne sur Mer
Local time: 04:39
29 sep, tuesday
0600 74°F
W
13 mph
0900 74°F
W
14 mph
1200 78°F
W
17 mph
1500 78°F
W
19 mph
1800 76°F
W
18 mph
2100 76°F
W
15 mph
30 sep, wednesday
0000 76°F
W
17 mph
0300 76°F
W
17 mph