World Resorts France Rennes Weather

Rennes sea water temperature

Current sea water temperature:
+56.3°F
Minimum sea water temperature in November: 60.6°F
Maximum sea water temperature in November: 52.2°F
Average sea water temperature in November: 56.2°F

Sea water temperature for the last 10 days:

November 14 56.3°F November 9 56.5°F
November 13 56.1°F November 8 56.7°F
November 12 56.1°F November 7 57.0°F
November 11 56.1°F November 6 57.9°F
November 10 56.3°F November 5 58.1°F

When is the warmest sea in Rennes?

Based on the data about daily sea water temperature for the last three years the warmest sea in Rennes was noticed in August, September and July.

Monthly Sea Temperatures in Rennes, °F

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.

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.

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 67.2°F. The highest and lowest sea temperatures during the month were 68.9°F and 64.9°F.

Best time for vacation in Rennes

Sunniest months:
July 13 days
August 12 days
April 10 days
Warmest months:
July 74.6 °F
August 74.5 °F
June 70.2 °F
Warmest sea temp:
August 66.1 °F
September 65.0 °F
July 64.3 °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
+37°F
W 7 mph
Feels like: +32°F
Precip.: 14%
Places in France:
Name
°F
+37°F
+55°F
+43°F
+57°F
+57°F
+55°F
+55°F
+46°F
+54°F
+39°F
+57°F
+57°F
+55°F
+48°F
+37°F
24 Hours Forecast
Rennes
Local time: 09:43
November 14, saturday
1200
46°F
W
9 mph
1500
48°F
W
8 mph
1800
43°F
NW
5 mph
2100
39°F
N
5 mph
November 15, sunday
0000
39°F
N
6 mph
0300
41°F
N
8 mph
0600
46°F
N
11 mph
0900
52°F
N
14 mph
Units of measurement: °C / °F