Average sea water temperature in September:
+72.9°F
| Minimum sea water temperature in September: | 80.8°F |
| Maximum sea water temperature in September: | 65.3°F |
Daily sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 75.3°F. The highest and lowest sea temperatures during the month were 79.0°F and 72.5°F.
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| La Seyne sur Mer |
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| La Seyne sur Mer |
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| La Seyne sur Mer |
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| La Seyne sur Mer |
Monthly sea water temperature in La Seyne sur Mer, °F
Which France resorts have warmest sea in September?
| Place name | September 2026 | September 2025 |
|---|---|---|
| Portivecju | 80.6°F | 76.3°F |
| Bastia | 80.3°F | 76.0°F |
| Bunifaziu | 80.0°F | 75.7°F |
| Aiacciu | 79.9°F | 75.9°F |
| Corsica | 79.6°F | 75.6°F |
| Propriano | 79.4°F | 75.3°F |
| Roquebrune Cap Martin | 79.2°F | 75.5°F |
| Saint Jean Cap Ferrat | 79.1°F | 75.5°F |
| Calvi | 79.1°F | 75.8°F |
| Menton | 79.0°F | 75.4°F |
| Nice | 78.9°F | 75.3°F |
| Antibes | 78.7°F | 75.0°F |
| Juan les Pins | 78.7°F | 75.0°F |
| Theoule Sur Mer | 78.7°F | 74.8°F |
| Mandelieu la Napoule | 78.7°F | 74.8°F |
| Cannes | 78.7°F | 74.9°F |
| Saint Laurent du Var | 78.7°F | 75.1°F |
| Golfe Juan | 78.7°F | 74.9°F |
| Cagnes sur Mer | 78.6°F | 75.0°F |
| Frejus | 78.1°F | 74.3°F |
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: 19:24
October 17, saturday
2100
70°F
NE
2 mph
2 mph
October 18, sunday
0000
70°F
W
9 mph
9 mph
0300
70°F
SW
9 mph
9 mph
0600
68°F
S
6 mph
6 mph
0900
68°F
SW
3 mph
3 mph
1200
68°F
W
7 mph
7 mph
1500
68°F
W
13 mph
13 mph
1800
68°F
W
13 mph
13 mph
