Average sea water temperature in September:
+65.0°F
| Minimum sea water temperature in September: | 68.5°F |
| Maximum sea water temperature in September: | 61.9°F |
Daily sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 67.1°F. The highest and lowest sea temperatures during the month were 68.5°F and 64.9°F.
Monthly sea water temperature in Rennes, °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 |
| Juan les Pins | 78.7°F | 75.0°F |
| Antibes | 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 Rennes
Rennes on a weather map
Places in France:
Name
°F
24 Hours Forecast
Rennes
Local time: 06:39
October 05, monday
0900
55°F
SW
6 mph
6 mph
1200
70°F
SW
7 mph
7 mph
1500
77°F
SW
7 mph
7 mph
1800
77°F
SW
7 mph
7 mph
2100
61°F
S
9 mph
9 mph
October 06, tuesday
0000
59°F
SW
7 mph
7 mph
0300
57°F
SW
6 mph
6 mph
0600
57°F
SW
7 mph
7 mph
