Measurements:
°C
°F
La Seyne sur Mer
44°F
SE 28 mph
Feels like: 34°F
Precip: 0%
World Resorts France La Seyne sur Mer Weather

La Seyne sur Mer Sea Water Temperature

Current Sea Water Temperature:
+59.0°F
Maximum Sea Water Temperature in January: 61.8°F
Minimum Sea Water Temperature in January: 56.0°F
Average water temperature in January: 58.8°F

Sea Water Temperature for the Last 10 Days:

January 09 59.0°F January 04 60.4°F
January 08 59.6°F January 03 60.6°F
January 07 60.0°F January 02 60.6°F
January 06 59.8°F January 01 60.8°F
January 05 59.8°F December 31 60.4°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:
August 29 days
July 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 53.0 °F
February 54.2 °F
December 55.7 °F
The most rainy months:
November 4 days
February 3 days
March 3 days
The most windy months:
March 12 mph
January 12 mph
December 12 mph

La Seyne sur Mer on the Weather Map

France Resorts:
NAME
Annecy +26
Antibes +46
Biarritz +50
Bordeaux +46
Cannes +46
Chamonix +12
Corsica +48
Etretat +44
Marseilles +42
Menton +48
Montpellier +44
Nice +40
Paris +40
Saint-Tropez +44
Toulouse +40
24 Hours Weather Forecast
La Seyne sur Mer
Local time: 03:35
10 jan, saturday
0600 42°F
SE
30 mph
0900 42°F
SE
32 mph
1200 44°F
SE
36 mph
1500 46°F
SE
34 mph
1800 44°F
SE
32 mph
2100 42°F
SE
35 mph
11 jan, sunday
0000 40°F
SE
37 mph
0300 40°F
SE
25 mph