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Plymouth in April

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

36.8 °F

Average:

43.6 °F

Maximum:

48.5 °F

Sea water temperature in Plymouth in April

In the city of Plymouth, the month of April is too cold for swimming. The minimum recorded temperature during this month was 36.8°F on April 2, 2015, with an average temperature being 43.6°F and a maximum temperature reaching 48.5°F on April 22, 2021.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. Throughout the month of April, the sea temperature gradually gets warmer. Starting with an average temperature of 41.4°F at the beginning of the month, it steadily increases to around 45.7°F by the end.
Date 10 years average 2024 2023
Apr 1 40.4°F 40.8°F 42.7°F
Apr 2 41.0°F 42.3°F 42.7°F
Apr 3 41.3°F 41.9°F 44.7°F
Apr 4 41.1°F 41.8°F 44.2°F
Apr 5 41.2°F 41.7°F 43.6°F
Apr 6 41.1°F 41.3°F 43.7°F
Apr 7 41.7°F 41.3°F 45.8°F
Apr 8 41.9°F 41.4°F 45.2°F
Apr 9 42.1°F 41.7°F 44.8°F
Apr 10 42.3°F 42.5°F 44.1°F
Apr 11 42.6°F 42.0°F 45.0°F
Apr 12 42.6°F 42.0°F 45.3°F
Apr 13 43.2°F 44.0°F 44.7°F
Apr 14 43.6°F 44.7°F 44.9°F
Apr 15 43.6°F 44.7°F 45.3°F
Apr 16 43.8°F 43.8°F 45.7°F
Apr 17 44.3°F 45.4°F 46.0°F
Apr 18 44.5°F 47.6°F 46.0°F
Apr 19 44.7°F 47.0°F 48.3°F
Apr 20 45.0°F 46.6°F 47.6°F
Apr 21 45.1°F 46.4°F 47.9°F
Apr 22 45.3°F 47.3°F 47.9°F
Apr 23 45.6°F 46.4°F 47.8°F
Apr 24 45.6°F 46.6°F 47.5°F
Apr 25 45.5°F 47.8°F 46.4°F
Apr 26 45.4°F 46.2°F 46.3°F
Apr 27 45.9°F 46.7°F 48.4°F
Apr 28 46.0°F 45.7°F 48.3°F
Apr 29 46.1°F 45.8°F 48.3°F
Apr 30 46.4°F 46.9°F 48.2°F

Sea water temperature in Plymouth by month

In an average year, Plymouth offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Plymouth was recorded on July 31, 2020, reaching a 76.3°F. While the coldest temperature occurred on February 28, 2015, dipping to 33.6°F. The average readings by season are 41.3°F in Winter, 44.6°F in Spring, 64.9°F in Summer, and 58.8°F in Autumn. The average temperature in April is slightly warmer than March's average of 38.9°F. And in May, the temperature is expected to rise further, potentially reaching an average of 51.4°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
South Boston 54.7°F 32mi
Boston 54.7°F 34mi
Bristol 56.2°F 36mi
Providence 55.9°F 39mi

* current water temperature in this city

** straight line distance from Plymouth