Measurements:
°C
°F
La Seyne sur Mer
66°F
W 18 mph
Feels like: 66°F
Precip: 100%
World Resorts France La Seyne sur Mer Weather

La Seyne sur Mer Sea Water Temperature

Current Sea Water Temperature:
+65.6°F
Maximum Sea Water Temperature in May: 71.2°F
Minimum Sea Water Temperature in May: 58.4°F
Average water temperature in May: 63.7°F

Sea Water Temperature for the Last 10 Days:

May 09 65.6°F May 04 64.8°F
May 08 65.0°F May 03 64.4°F
May 07 65.2°F May 02 64.0°F
May 06 64.8°F May 01 64.4°F
May 05 64.8°F April 30 65.0°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: 2025 2024 2023

The average sea surface temperature in August 2025 for La Seyne sur Mer was 78.6°F. The maximum and minimum values were 73.6°F and 82.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for La Seyne sur Mer was 77.4°F. The maximum and minimum values were 69.2°F and 85.6°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for La Seyne sur Mer was 73.4°F. The maximum and minimum values were 68.6°F and 76.0°F respectively.

Best Time to Visit La Seyne sur Mer
The most sunny months:
July 29 days
August 29 days
June 25 days
The most warm months:
August 86.2 °F
July 85.9 °F
June 79.7 °F
Warmest sea temperature:
August 78.3 °F
July 76.4 °F
September 75.3 °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
Annecy +48
Antibes +66
Biarritz +58
Bordeaux +58
Cannes +64
Corsica +58
Etretat +56
Marseilles +66
Menton +66
Montpellier +58
Nice +64
Paris +56
Perpignan +58
Saint-Tropez +66
Toulouse +58
24 Hours Weather Forecast
La Seyne sur Mer
Local time: 04:03
10 may, sunday
0600 64°F
W
21 mph
0900 64°F
W
20 mph
1200 64°F
W
17 mph
1500 64°F
W
11 mph
1800 64°F
NW
5 mph
2100 64°F
NW
7 mph
11 may, monday
0000 62°F
NW
7 mph
0300 64°F
N
9 mph