Measurements:
°C
°F
Bristol
40°F
N 6 mph
Feels like: 36°F
Precip: 0%
World Resorts United Kingdom Bristol Weather

Bristol Sea Water Temperature

Current Sea Water Temperature:
+47.2°F
Maximum Sea Water Temperature in December: 52.4°F
Minimum Sea Water Temperature in December: 41.6°F
Average water temperature in December: 47.5°F

Sea Water Temperature for the Last 10 Days:

December 13 47.2°F December 08 47.8°F
December 12 47.4°F December 07 48.0°F
December 11 47.8°F December 06 47.8°F
December 10 47.8°F December 05 47.8°F
December 09 47.8°F December 04 48.0°F

When is the Warmest Sea for Bristol?

According to our data for the last three years for Bristol the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Bristol was 69.1°F. The maximum and minimum values were 67.0°F and 70.4°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Bristol was 69.7°F. The maximum and minimum values were 66.6°F and 71.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Bristol was 62.9°F. The maximum and minimum values were 59.2°F and 67.0°F respectively.

Best Time to Visit Bristol
The most sunny months:
July 8 days
April 8 days
March 7 days
The most warm months:
July 71.3 °F
August 70.6 °F
June 67.2 °F
Warmest sea temperature:
August 67.2 °F
July 66.5 °F
September 63.8 °F
The most cold months:
January 44.3 °F
February 46.3 °F
December 47.1 °F
The most rainy months:
November 5 days
December 5 days
March 4 days
The most windy months:
February 12 mph
December 12 mph
January 11 mph

Bristol on the Weather Map

United Kingdom Resorts:
NAME
Bath +38
Belfast +40
Bournemouth +44
Brighton +46
Bristol +40
Edinburgh +44
Gibraltar +60
Glasgow +42
Liverpool +42
London +36
Middlesbrough +40
Plymouth +46
Scarborough +40
Torquay +38
York +38
24 Hours Weather Forecast
Bristol
Local time: 09:26
13 dec, saturday
1200 46°F
NE
9 mph
1500 46°F
NE
11 mph
1800 44°F
N
11 mph
2100 44°F
NE
12 mph
14 dec, sunday
0000 44°F
NE
11 mph
0300 44°F
NE
13 mph
0600 46°F
NE
14 mph
0900 48°F
NE
14 mph