All data are in degrees Fahrenheit

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Water temperature in Bristol

Detailed information about the current water temperature in Bristol. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Bristol now

55.2

°F

May 14, 13:54

Trend:

increasing

Yesterday:

55.0°F

Tomorrow:

55.6°F

Sunrise:

05:21

Sunset:

20:53

Day Length:

15 h. 32 min.

Bristol in May

Minimum:

41.5°F

Average:

44.5°F

Maximum:

47.0°F

Sea water temperature in Bristol today

As of now, in Bristol, the water temperature is 55.2°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is about the same as the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to rise a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 57.6°F on 2025, while the historical minimum was 52.7°F on 2021.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 56.4°F, with minimum temperature starting at 55.6°F, while the maximum might reach 57.6°F.

Daily water temperature in Bristol

Date Current Year

actual* / forecast**

last year 10 years average
Apr 30 54.1°F 54.5°F 52.3°F
May 1 53.9°F 55.9°F 52.5°F
May 2 53.8°F 56.8°F 52.7°F
May 3 53.9°F 57.7°F 53.0°F
May 4 53.7°F 57.3°F 52.9°F
May 5 55.1°F 57.5°F 53.3°F
May 6 55.5°F 56.8°F 53.3°F
May 7 55.4°F 56.5°F 53.4°F
May 8 55.2°F 56.2°F 53.7°F
May 9 54.8°F 55.9°F 53.9°F
May 10 55.9°F 56.2°F 54.2°F
May 11 55.2°F 56.3°F 54.3°F
May 12 55.1°F 56.3°F 54.2°F
May 13 55.0°F 58.5°F 54.7°F
May 14 55.2°F 57.6°F 55.1°F
May 15 55.6°F 58.3°F 55.5°F
May 16 55.7°F 57.9°F 55.5°F
May 17 56.1°F 58.0°F 55.9°F
May 18 56.3°F 58.9°F 56.2°F
May 19 56.6°F 59.2°F 56.5°F
May 20 57.1°F 59.3°F 57.0°F
May 21 57.6°F 59.2°F 57.4°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Bristol by month

In an average year, Bristol offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Bristol was recorded on July 23, 2021, reaching a 71.4°F. While the coldest temperature occurred on February 3, 2023, dipping to 40.2°F. The average readings by season are 45.2°F in Winter, 50.3°F in Spring, 64.5°F in Summer, and 57.5°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Newport 55.0°F 20mi
Cardiff 55.1°F 25mi
Barry 54.6°F 30mi
Portland 54.7°F 62mi

* current water temperature in this city

** straight line distance from Bristol