Measurements:
°C
°F
La Seyne sur Mer
84°F
NE 9 mph
Feels like: 92°F
Precip: 12%
World Resorts France La Seyne sur Mer Weather

La Seyne sur Mer Sea Water Temperature

Current Sea Water Temperature:
+83.0°F
Maximum Sea Water Temperature in August: 86.2°F
Minimum Sea Water Temperature in August: 62.4°F
Average water temperature in August: 78.5°F

Sea Water Temperature for the Last 10 Days:

August 19 83.0°F August 14 85.2°F
August 18 85.6°F August 13 85.2°F
August 17 86.2°F August 12 85.6°F
August 16 86.0°F August 11 85.2°F
August 15 85.8°F August 10 84.8°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 84.3°F. The maximum and minimum values were 82.0°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: 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 86.1 °F
June 79.9 °F
Warmest sea temperature:
August 78.3 °F
July 76.7 °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
Antibes +84
Arcachon +72
Cannes +84
Corsica +84
Deauville +62
Etretat +68
Marseilles +84
Menton +84
Montpellier +84
Nice +80
Paris +72
Perpignan +88
Saint-Tropez +86
Toulon +84
Toulouse +86
24 Hours Weather Forecast
La Seyne sur Mer
Local time: 20:12
19 aug, wednesday
2100 84°F
NE
9 mph
20 aug, thursday
0000 84°F
E
4 mph
0300 84°F
NW
6 mph
0600 82°F
NW
11 mph
0900 84°F
N
7 mph
1200 84°F
NW
9 mph
1500 86°F
SE
5 mph
1800 84°F
N
11 mph