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Plymouth in May

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

43.4 °F

Average:

51.4 °F

Maximum:

59.3 °F

Sea water temperature in Plymouth in May

In the city of Plymouth, the month of May is too cold for swimming. The minimum recorded temperature during this month was 43.4°F on May 1, 2014, with an average temperature being 51.4°F and a maximum temperature reaching 59.3°F on May 30, 2023.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. Throughout the month of May, the sea temperature gradually gets warmer. Starting with an average temperature of 48.1°F at the beginning of the month, it steadily increases to around 54.4°F by the end.
Date 10 years average 2024 2023
May 1 46.5°F 46.9°F 48.1°F
May 2 47.2°F 48.1°F 49.0°F
May 3 47.5°F 47.9°F 50.3°F
May 4 47.7°F 47.9°F 49.6°F
May 5 47.9°F 48.9°F 49.3°F
May 6 47.9°F 48.6°F 49.4°F
May 7 48.5°F 48.8°F 49.9°F
May 8 49.0°F 48.8°F 51.3°F
May 9 49.4°F 49.2°F 53.6°F
May 10 49.7°F 50.8°F 53.5°F
May 11 49.8°F 50.9°F 53.3°F
May 12 50.3°F 51.4°F 53.8°F
May 13 50.5°F 51.7°F 54.6°F
May 14 50.6°F 51.7°F 54.8°F
May 15 51.4°F 52.6°F 57.3°F
May 16 51.5°F 52.7°F 56.8°F
May 17 51.6°F 51.8°F 56.8°F
May 18 52.1°F 52.3°F 55.6°F
May 19 52.2°F 52.4°F 54.9°F
May 20 52.4°F 52.6°F 54.9°F
May 21 53.0°F 53.2°F 53.6°F
May 22 53.9°F 54.1°F 53.8°F
May 23 54.0°F 54.2°F 54.0°F
May 24 53.9°F 54.1°F 53.6°F
May 25 53.9°F 54.1°F 54.7°F
May 26 54.3°F 54.5°F 55.3°F
May 27 54.7°F 54.9°F 56.5°F
May 28 54.7°F 54.9°F 56.6°F
May 29 55.0°F 55.2°F 57.8°F
May 30 55.5°F 55.7°F 59.3°F
May 31 55.5°F 55.7°F 58.6°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 May is slightly warmer than April's average of 43.6°F. And in June, the temperature is expected to rise further, potentially reaching an average of 59.6°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