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Bristol in December

Find out everything about the water temperature in Bristol in December. Average, minimum and maximum recorded temperatures as well as daily temperature in December for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in December
Minimum:

36.9 °F

Average:

44.8 °F

Maximum:

52.2 °F

Sea water temperature in Bristol in December

In the city of Bristol, the month of December is too cold for swimming. The minimum recorded temperature during this month was 36.9°F on December 31, 2025, with an average temperature being 44.8°F and a maximum temperature reaching 52.2°F on December 1, 2017.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. Throughout the month of December, the sea temperature gradually gets colder. Starting with an average temperature of 47.2°F at the beginning of the month, it steadily decreases to around 42.5°F by the end.
Date 10 years average 2025 2024
Dec 1 48.5°F 45.5°F 47.1°F
Dec 2 48.2°F 45.3°F 46.9°F
Dec 3 48.0°F 45.6°F 44.8°F
Dec 4 47.6°F 45.8°F 44.1°F
Dec 5 47.3°F 44.7°F 44.0°F
Dec 6 47.1°F 44.7°F 43.5°F
Dec 7 46.5°F 44.7°F 43.1°F
Dec 8 46.1°F 42.6°F 43.1°F
Dec 9 46.2°F 42.1°F 42.4°F
Dec 10 46.0°F 42.6°F 41.2°F
Dec 11 45.7°F 42.8°F 41.7°F
Dec 12 45.7°F 41.1°F 42.4°F
Dec 13 45.9°F 39.1°F 43.4°F
Dec 14 45.2°F 39.5°F 42.2°F
Dec 15 44.9°F 39.9°F 41.1°F
Dec 16 44.6°F 38.6°F 41.0°F
Dec 17 44.5°F 39.4°F 41.6°F
Dec 18 44.7°F 38.6°F 43.4°F
Dec 19 44.3°F 38.0°F 42.1°F
Dec 20 44.0°F 39.0°F 43.3°F
Dec 21 43.9°F 38.5°F 43.1°F
Dec 22 43.8°F 39.3°F 43.0°F
Dec 23 43.2°F 38.5°F 41.0°F
Dec 24 43.0°F 38.8°F 40.4°F
Dec 25 42.6°F 37.9°F 40.0°F
Dec 26 42.4°F 38.4°F 40.1°F
Dec 27 42.1°F 37.8°F 38.8°F
Dec 28 41.8°F 36.9°F 38.2°F
Dec 29 41.7°F 37.2°F 38.8°F
Dec 30 41.8°F 38.2°F 39.6°F
Dec 31 41.8°F 36.9°F 42.3°F

Sea water temperature in Bristol by month

In Bristol, the months July through August offer comfortable swimming conditions, which amounts to 46 swimming days. The warmest water in Bristol was recorded on August 10, 2022, reaching a 80.6°F. While the coldest temperature occurred on February 19, 2025, dipping to 33.2°F. The average readings by season are 41.0°F in Winter, 47.8°F in Spring, 71.3°F in Summer, and 62.2°F in Autumn. December's average temperature is a slight drop from November's average of 53.8°F. In January, the temperature is expected to decrease further, potentially averaging around 39.8°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Providence 36.8°F 13mi
Newport 39.4°F 13mi
Plymouth 36.0°F 36mi
South Boston 35.4°F 47mi
Boston 35.4°F 48mi

* current water temperature in this city

** straight line distance from Bristol