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South Boston in January

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

37.5 °F

Average:

40.8 °F

Maximum:

46.1 °F

Sea water temperature in South Boston in January

In the city of South Boston, the month of January is too cold for swimming. The minimum recorded temperature during this month was 37.5°F on January 31, 2014, with an average temperature being 40.8°F and a maximum temperature reaching 46.1°F on January 1, 2016.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. In January, the sea temperature remains relatively stable. The average temperature stays close to 40.8°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
Jan 1 42.4°F 43.7°F 40.2°F
Jan 2 42.3°F 42.6°F 41.4°F
Jan 3 42.2°F 42.5°F 40.0°F
Jan 4 42.2°F 42.7°F 40.2°F
Jan 5 42.2°F 42.7°F 40.6°F
Jan 6 42.0°F 41.5°F 41.0°F
Jan 7 41.7°F 41.4°F 41.0°F
Jan 8 41.3°F 41.5°F 39.9°F
Jan 9 41.2°F 40.8°F 40.7°F
Jan 10 41.2°F 40.9°F 40.6°F
Jan 11 41.1°F 40.8°F 41.2°F
Jan 12 41.2°F 40.8°F 41.3°F
Jan 13 41.1°F 40.6°F 41.4°F
Jan 14 41.1°F 41.0°F 41.1°F
Jan 15 41.0°F 40.4°F 41.1°F
Jan 16 40.7°F 40.7°F 41.1°F
Jan 17 40.7°F 40.7°F 41.1°F
Jan 18 40.3°F 40.1°F 40.3°F
Jan 19 40.3°F 40.3°F 40.6°F
Jan 20 40.2°F 40.2°F 39.6°F
Jan 21 40.0°F 40.1°F 39.8°F
Jan 22 40.2°F 40.2°F 40.2°F
Jan 23 40.2°F 40.4°F 40.2°F
Jan 24 40.3°F 40.5°F 40.4°F
Jan 25 40.1°F 40.3°F 40.1°F
Jan 26 39.9°F 40.2°F 39.6°F
Jan 27 39.6°F 40.0°F 39.6°F
Jan 28 39.5°F 39.9°F 39.4°F
Jan 29 39.5°F 39.8°F 40.1°F
Jan 30 39.5°F 39.7°F 39.6°F
Jan 31 39.1°F 39.5°F 39.3°F

Sea water temperature in South Boston by month

In an average year, South Boston offers no days when the water temperature is warm enough to swim comfortably. The warmest water in South Boston was recorded on July 29, 2020, reaching a 75.0°F. While the coldest temperature occurred on February 22, 2021, dipping to 33.7°F. The average readings by season are 41.3°F in Winter, 44.9°F in Spring, 64.8°F in Summer, and 58.0°F in Autumn. January's average temperature is a slight drop from December's average of 44.9°F. In February, the temperature is expected to decrease further, potentially averaging around 38.2°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Boston 49.4°F 2mi
Salem 50.0°F 15mi
Plymouth 50.8°F 32mi
Providence 51.2°F 40mi
Bristol 51.5°F 47mi

* current water temperature in this city

** straight line distance from South Boston