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Delaware City in May

Find out everything about the water temperature in Delaware City 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:

50.6 °F

Average:

61.1 °F

Maximum:

71.3 °F

Sea water temperature in Delaware City in May

In the city of Delaware City, the month of May is somewhat too cool for swimming. The minimum recorded temperature during this month was 50.6°F on May 2, 2015, with an average temperature being 61.1°F and a maximum temperature reaching 71.3°F on May 29, 2024.

Most people would find such water temperature somewhat too cold for swimming. Throughout the month of May, the sea temperature gradually gets warmer. Starting with an average temperature of 57.4°F at the beginning of the month, it steadily increases to around 64.9°F by the end.
Date 10 years average 2024 2023
May 1 55.5°F 61.2°F 56.1°F
May 2 57.1°F 63.4°F 60.5°F
May 3 57.0°F 62.1°F 58.9°F
May 4 57.0°F 63.3°F 57.6°F
May 5 57.4°F 62.2°F 58.7°F
May 6 57.1°F 61.4°F 58.2°F
May 7 57.7°F 61.3°F 58.2°F
May 8 58.0°F 61.1°F 58.4°F
May 9 58.6°F 64.7°F 59.5°F
May 10 58.7°F 64.0°F 60.7°F
May 11 58.6°F 64.0°F 59.4°F
May 12 59.2°F 64.5°F 60.4°F
May 13 59.4°F 64.8°F 60.9°F
May 14 59.8°F 65.1°F 61.8°F
May 15 60.0°F 62.9°F 60.8°F
May 16 61.1°F 63.4°F 63.5°F
May 17 61.8°F 64.0°F 62.6°F
May 18 62.6°F 64.2°F 64.6°F
May 19 62.3°F 64.0°F 64.0°F
May 20 63.1°F 65.0°F 63.0°F
May 21 62.7°F 63.8°F 62.6°F
May 22 63.1°F 64.1°F 64.9°F
May 23 63.4°F 67.0°F 64.9°F
May 24 63.5°F 67.8°F 64.9°F
May 25 63.5°F 68.1°F 65.4°F
May 26 64.8°F 68.5°F 66.6°F
May 27 65.2°F 69.5°F 65.2°F
May 28 66.1°F 69.9°F 66.4°F
May 29 67.3°F 71.3°F 65.8°F
May 30 67.0°F 70.3°F 67.3°F
May 31 67.0°F 71.1°F 68.0°F

Sea water temperature in Delaware City by month

In Delaware City, the months July through September offer comfortable swimming conditions, which amounts to 97 swimming days. The warmest water in Delaware City was recorded on July 12, 2024, reaching a 86.5°F. While the coldest temperature occurred on February 6, 2015, dipping to 32.0°F. The average readings by season are 39.6°F in Winter, 52.0°F in Spring, 77.3°F in Summer, and 64.6°F in Autumn. The average temperature in May is slightly warmer than April's average of 52.1°F. And in June, the temperature is expected to rise further, potentially reaching an average of 72.7°F.