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Petersburg in May

Find out everything about the water temperature in Petersburg 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:

42.4 °F

Average:

46.9 °F

Maximum:

55.0 °F

Sea water temperature in Petersburg in May

In the city of Petersburg, the month of May is too cold for swimming. The minimum recorded temperature during this month was 42.4°F on May 1, 2014, with an average temperature being 46.9°F and a maximum temperature reaching 55.0°F on May 30, 2019.

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 44.8°F at the beginning of the month, it steadily increases to around 48.5°F by the end.
Date 10 years average 2024 2023
May 1 44.0°F 45.1°F 43.3°F
May 2 44.1°F 45.1°F 43.3°F
May 3 44.4°F 44.9°F 43.4°F
May 4 44.6°F 46.7°F 43.5°F
May 5 44.9°F 48.6°F 43.6°F
May 6 45.1°F 48.4°F 43.0°F
May 7 45.0°F 48.1°F 43.2°F
May 8 45.2°F 47.8°F 43.5°F
May 9 45.3°F 47.4°F 43.8°F
May 10 45.5°F 47.3°F 44.4°F
May 11 46.0°F 47.8°F 45.1°F
May 12 46.5°F 48.2°F 45.1°F
May 13 46.8°F 48.5°F 45.2°F
May 14 47.0°F 48.8°F 45.2°F
May 15 47.2°F 46.2°F 45.2°F
May 16 47.4°F 46.0°F 45.9°F
May 17 47.4°F 44.7°F 46.7°F
May 18 47.6°F 45.8°F 47.0°F
May 19 47.7°F 45.7°F 48.0°F
May 20 47.8°F 45.4°F 48.3°F
May 21 48.0°F 45.5°F 48.3°F
May 22 48.0°F 45.7°F 48.3°F
May 23 48.1°F 45.9°F 47.6°F
May 24 48.1°F 46.0°F 48.7°F
May 25 48.1°F 46.0°F 48.5°F
May 26 48.2°F 46.2°F 49.4°F
May 27 48.6°F 46.5°F 49.4°F
May 28 48.7°F 46.7°F 49.3°F
May 29 49.0°F 46.9°F 49.3°F
May 30 49.3°F 47.0°F 49.2°F
May 31 49.4°F 47.1°F 49.2°F

Sea water temperature in Petersburg by month

In an average year, Petersburg offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Petersburg was recorded on July 7, 2019, reaching a 60.2°F. While the coldest temperature occurred on January 13, 2023, dipping to 37.5°F. The average readings by season are 41.3°F in Winter, 43.1°F in Spring, 53.1°F in Summer, and 46.5°F in Autumn. The average temperature in May is slightly warmer than April's average of 42.2°F. And in June, the temperature is expected to rise further, potentially reaching an average of 51.0°F.