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Petersburg in July

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

49.2 °F

Average:

54.2 °F

Maximum:

60.2 °F

Sea water temperature in Petersburg in July

In the city of Petersburg, the month of July is too cold for swimming. The minimum recorded temperature during this month was 49.2°F on July 30, 2024, with an average temperature being 54.2°F and a maximum temperature reaching 60.2°F on July 7, 2019.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. In July, the sea temperature remains relatively stable. The average temperature stays close to 54.2°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
Jul 1 53.5°F 50.2°F 54.5°F
Jul 2 53.7°F 50.8°F 54.4°F
Jul 3 53.8°F 50.7°F 54.3°F
Jul 4 53.7°F 51.5°F 51.9°F
Jul 5 54.0°F 51.5°F 53.0°F
Jul 6 54.3°F 52.5°F 52.8°F
Jul 7 54.4°F 52.3°F 51.2°F
Jul 8 54.3°F 52.1°F 50.8°F
Jul 9 54.6°F 51.9°F 53.6°F
Jul 10 54.9°F 52.6°F 55.1°F
Jul 11 54.8°F 52.8°F 54.8°F
Jul 12 55.1°F 53.2°F 54.7°F
Jul 13 55.1°F 53.5°F 53.6°F
Jul 14 54.8°F 53.5°F 52.7°F
Jul 15 54.8°F 53.5°F 53.8°F
Jul 16 54.7°F 53.3°F 55.5°F
Jul 17 54.4°F 53.2°F 55.1°F
Jul 18 53.9°F 51.0°F 54.8°F
Jul 19 53.6°F 49.4°F 54.7°F
Jul 20 53.7°F 52.4°F 54.5°F
Jul 21 54.0°F 53.0°F 54.6°F
Jul 22 54.1°F 53.3°F 54.8°F
Jul 23 54.2°F 52.8°F 54.9°F
Jul 24 54.3°F 53.1°F 55.0°F
Jul 25 54.1°F 52.2°F 54.4°F
Jul 26 54.0°F 50.3°F 54.7°F
Jul 27 54.1°F 50.8°F 54.9°F
Jul 28 54.1°F 51.4°F 55.2°F
Jul 29 54.1°F 51.6°F 54.9°F
Jul 30 53.5°F 49.2°F 54.5°F
Jul 31 53.7°F 49.2°F 55.6°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. In July, the temperature is higher than June's average of 51.0°F and August's average of 54.2°F.