World Resorts France Rennes Weather

Rennes Sea Temperature in December

Average sea water temperature in December:
+51.4°F
Minimum sea water temperature in December: 55.6°F
Maximum sea water temperature in December: 48.7°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 51.4°F. The highest and lowest sea temperatures during the month were 53.6°F and 48.7°F.

Monthly sea water temperature in Rennes, °F

Which France resorts have warmest sea in December?

Place name December 2025 December 2024
Calvi 61.9°F 61.6°F
Aiacciu 61.9°F 61.7°F
Saint Jean Cap Ferrat 61.8°F 61.4°F
Bunifaziu 61.8°F 61.9°F
Roquebrune Cap Martin 61.8°F 61.3°F
Corsica 61.7°F 61.7°F
Menton 61.7°F 61.2°F
Nice 61.7°F 61.2°F
Propriano 61.6°F 61.7°F
Saint Laurent du Var 61.5°F 61.1°F
Cagnes sur Mer 61.4°F 61.1°F
Antibes 61.4°F 61.0°F
Juan les Pins 61.4°F 61.0°F
Theoule Sur Mer 61.4°F 61.0°F
Mandelieu la Napoule 61.4°F 61.0°F
Cannes 61.4°F 61.0°F
Bastia 61.4°F 61.7°F
Golfe Juan 61.3°F 61.0°F
Cavalaire sur Mer 61.3°F 60.9°F
Le Lavandou 61.2°F 60.5°F

Best time for vacation in Rennes

Sunniest months:
August 12 days
July 12 days
September 11 days
Warmest months:
August 74.1 °F
July 73.9 °F
June 70.2 °F
Warmest sea temp:
August 65.9 °F
September 64.8 °F
July 64.2 °F
Coldest months:
January 46.2 °F
February 48.2 °F
December 48.6 °F
Rainiest months:
June 5 days
November 3 days
April 3 days
Windiest months:
February 11.1 mph
December 10.8 mph
January 10.5 mph

Rennes on a weather map

Rennes
+64°F
S 4 mph
Feels like: +64°F
Precip.: 15%
Places in France:
Name
°F
+81°F
+73°F
+73°F
+79°F
+75°F
+84°F
+81°F
+73°F
+79°F
+86°F
+73°F
+81°F
+82°F
+84°F
+66°F
24 Hours Forecast
Rennes
Local time: 19:41
July 16, thursday
2100
64°F
S
4 mph
July 17, friday
0000
63°F
S
3 mph
0300
61°F
SE
3 mph
0600
57°F
S
6 mph
0900
64°F
SW
6 mph
1200
75°F
SW
7 mph
1500
82°F
S
9 mph
1800
82°F
S
15 mph
Units of measurement: °C / °F