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Petersburg in April

Find out everything about the water temperature in Petersburg 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:

38.9 °F

Average:

42.2 °F

Maximum:

45.8 °F

Sea water temperature in Petersburg in April

In the city of Petersburg, the month of April is too cold for swimming. The minimum recorded temperature during this month was 38.9°F on April 5, 2014, with an average temperature being 42.2°F and a maximum temperature reaching 45.8°F on April 23, 2016.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. In April, the sea temperature remains relatively stable. The average temperature stays close to 42.2°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
Apr 1 40.9°F 41.7°F 39.2°F
Apr 2 41.1°F 41.7°F 39.4°F
Apr 3 40.9°F 41.7°F 39.7°F
Apr 4 40.9°F 41.6°F 39.8°F
Apr 5 40.9°F 41.6°F 39.9°F
Apr 6 40.9°F 41.6°F 40.1°F
Apr 7 41.1°F 41.7°F 40.3°F
Apr 8 41.2°F 41.7°F 40.3°F
Apr 9 41.2°F 41.6°F 40.4°F
Apr 10 41.3°F 41.7°F 40.5°F
Apr 11 41.1°F 41.6°F 40.6°F
Apr 12 41.3°F 41.7°F 40.5°F
Apr 13 41.4°F 41.7°F 40.7°F
Apr 14 41.6°F 42.0°F 40.9°F
Apr 15 41.7°F 42.1°F 40.9°F
Apr 16 41.8°F 42.4°F 41.1°F
Apr 17 41.8°F 42.6°F 41.3°F
Apr 18 42.1°F 42.4°F 41.5°F
Apr 19 42.6°F 43.5°F 41.7°F
Apr 20 43.0°F 43.9°F 42.8°F
Apr 21 43.3°F 44.3°F 42.9°F
Apr 22 43.5°F 45.0°F 42.8°F
Apr 23 43.7°F 45.0°F 42.9°F
Apr 24 43.7°F 44.8°F 42.9°F
Apr 25 43.9°F 44.7°F 42.9°F
Apr 26 43.9°F 44.7°F 42.9°F
Apr 27 43.8°F 43.5°F 43.0°F
Apr 28 43.9°F 44.9°F 43.1°F
Apr 29 44.0°F 44.9°F 43.2°F
Apr 30 44.0°F 44.9°F 43.2°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 April is slightly warmer than March's average of 40.2°F. And in May, the temperature is expected to rise further, potentially reaching an average of 46.9°F.