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
+93°F
SW 3 mph
Feels like: +93°F
Precip.: 1%
Places in France:
Name
°F
+84°F
+84°F
+99°F
+86°F
+84°F
+86°F
+81°F
+86°F
+86°F
+100°F
+90°F
+86°F
+88°F
+100°F
+66°F
24 Hours Forecast
Rennes
Local time: 15:15
June 26, friday
1800
93°F
SW
5 mph
2100
73°F
SE
12 mph
June 27, saturday
0000
63°F
S
8 mph
0300
63°F
S
6 mph
0600
61°F
SW
3 mph
0900
73°F
SE
4 mph
1200
90°F
E
3 mph
1500
97°F
NE
7 mph
Units of measurement: °C / °F