Average sea water temperature in August:
+66.0°F
| Minimum sea water temperature in August: | 70.2°F |
| Maximum sea water temperature in August: | 63.1°F |
Daily sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 68.8°F. The highest and lowest sea temperatures during the month were 70.2°F and 67.3°F.
Monthly sea water temperature in Rennes, °F
Which France resorts have warmest sea in August?
| Place name | August 2026 | August 2025 |
|---|---|---|
| Bastia | 84.1°F | 79.4°F |
| Portivecju | 83.6°F | 79.5°F |
| Calvi | 82.7°F | 78.4°F |
| Roquebrune Cap Martin | 82.7°F | 78.7°F |
| Aiacciu | 82.6°F | 78.0°F |
| Menton | 82.6°F | 78.6°F |
| Bunifaziu | 82.5°F | 78.4°F |
| Saint Jean Cap Ferrat | 82.4°F | 78.8°F |
| Nice | 82.2°F | 78.6°F |
| Cannes | 82.1°F | 78.5°F |
| Antibes | 82.1°F | 78.4°F |
| Juan les Pins | 82.1°F | 78.4°F |
| Corsica | 82.1°F | 77.7°F |
| Golfe Juan | 82.1°F | 78.4°F |
| Mandelieu la Napoule | 82.1°F | 78.5°F |
| Theoule Sur Mer | 82.1°F | 78.5°F |
| Saint Laurent du Var | 82.0°F | 78.3°F |
| Cagnes sur Mer | 82.0°F | 78.2°F |
| Propriano | 82.0°F | 77.3°F |
| Frejus | 81.5°F | 78.1°F |
Best time for vacation in Rennes
Rennes on a weather map
Places in France:
Name
°F
24 Hours Forecast
Rennes
Local time: 03:34
September 15, tuesday
0600
63°F
E
3 mph
3 mph
0900
64°F
E
4 mph
4 mph
1200
77°F
SE
8 mph
8 mph
1500
81°F
SE
11 mph
11 mph
1800
68°F
S
18 mph
18 mph
2100
59°F
SE
12 mph
12 mph
September 16, wednesday
0000
54°F
SE
8 mph
8 mph
0300
54°F
SE
7 mph
7 mph
