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Baltimore in March

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

37.8 °F

Average:

44.4 °F

Maximum:

54.7 °F

Sea water temperature in Baltimore in March

In the city of Baltimore, the month of March is too cold for swimming. The minimum recorded temperature during this month was 37.8°F on March 2, 2025, with an average temperature being 44.4°F and a maximum temperature reaching 54.7°F on March 27, 2021.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. Throughout the month of March, the sea temperature gradually gets warmer. Starting with an average temperature of 41.8°F at the beginning of the month, it steadily increases to around 46.8°F by the end.
Date 10 years average 2025 2024
Mar 1 41.7°F 39.6°F 42.9°F
Mar 2 41.2°F 37.8°F 42.6°F
Mar 3 42.0°F 38.8°F 46.5°F
Mar 4 41.7°F 39.1°F 45.3°F
Mar 5 41.8°F 39.5°F 44.5°F
Mar 6 41.6°F 38.4°F 44.0°F
Mar 7 41.3°F 39.8°F 43.5°F
Mar 8 41.8°F 41.3°F 46.9°F
Mar 9 42.3°F 39.5°F 47.5°F
Mar 10 42.6°F 40.6°F 47.3°F
Mar 11 43.1°F 41.4°F 47.3°F
Mar 12 44.0°F 43.3°F 46.6°F
Mar 13 44.1°F 42.1°F 46.4°F
Mar 14 43.9°F 44.8°F 47.7°F
Mar 15 44.3°F 42.6°F 46.5°F
Mar 16 44.7°F 44.4°F 47.0°F
Mar 17 44.6°F 44.6°F 49.1°F
Mar 18 45.1°F 48.4°F 51.2°F
Mar 19 45.6°F 47.2°F 50.5°F
Mar 20 46.0°F 45.9°F 49.7°F
Mar 21 45.2°F 46.0°F 48.6°F
Mar 22 45.0°F 46.4°F 49.0°F
Mar 23 45.1°F 47.4°F 47.5°F
Mar 24 45.9°F 46.1°F 47.5°F
Mar 25 46.7°F 46.5°F 48.4°F
Mar 26 46.9°F 46.7°F 46.4°F
Mar 27 47.0°F 47.3°F 46.8°F
Mar 28 47.6°F 47.4°F 47.3°F
Mar 29 48.1°F 46.9°F 47.8°F
Mar 30 48.3°F 49.4°F 48.3°F
Mar 31 48.7°F 49.4°F 47.8°F

Sea water temperature in Baltimore by month

In Baltimore, the months July through September offer comfortable swimming conditions, which amounts to 97 swimming days. The warmest water in Baltimore was recorded on July 20, 2019, reaching a 86.3°F. While the coldest temperature occurred on January 11, 2018, dipping to 32.1°F. The average readings by season are 40.2°F in Winter, 53.6°F in Spring, 78.1°F in Summer, and 65.7°F in Autumn. The average temperature in March is slightly warmer than February's average of 38.0°F. And in April, the temperature is expected to rise further, potentially reaching an average of 53.4°F.