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San Diego in March

Find out everything about the water temperature in San Diego 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:

56.1 °F

Average:

60.5 °F

Maximum:

65.4 °F

Sea water temperature in San Diego in March

In the city of San Diego, the month of March is too cold for swimming. The minimum recorded temperature during this month was 56.1°F on March 3, 2023, with an average temperature being 60.5°F and a maximum temperature reaching 65.4°F on March 30, 2015.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. In March, the sea temperature remains relatively stable. The average temperature stays close to 60.5°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
Mar 1 59.6°F 61.9°F 56.3°F
Mar 2 59.6°F 62.4°F 56.4°F
Mar 3 59.6°F 62.2°F 56.1°F
Mar 4 59.7°F 61.9°F 56.4°F
Mar 5 59.9°F 62.1°F 56.2°F
Mar 6 60.0°F 62.6°F 56.8°F
Mar 7 60.1°F 62.5°F 56.8°F
Mar 8 60.1°F 62.4°F 56.8°F
Mar 9 60.2°F 62.5°F 56.6°F
Mar 10 60.2°F 62.5°F 56.4°F
Mar 11 60.3°F 62.4°F 56.6°F
Mar 12 60.4°F 62.4°F 56.8°F
Mar 13 60.5°F 62.4°F 57.6°F
Mar 14 60.6°F 62.8°F 57.9°F
Mar 15 60.6°F 62.8°F 58.1°F
Mar 16 60.5°F 62.4°F 57.8°F
Mar 17 60.8°F 62.5°F 58.2°F
Mar 18 60.9°F 62.5°F 58.3°F
Mar 19 61.0°F 62.7°F 58.4°F
Mar 20 60.9°F 63.2°F 58.7°F
Mar 21 60.9°F 63.4°F 58.5°F
Mar 22 60.9°F 63.6°F 58.8°F
Mar 23 61.0°F 63.8°F 58.9°F
Mar 24 61.0°F 64.2°F 59.1°F
Mar 25 61.1°F 64.0°F 59.4°F
Mar 26 61.1°F 63.6°F 59.3°F
Mar 27 61.1°F 63.2°F 59.5°F
Mar 28 61.0°F 62.6°F 59.2°F
Mar 29 60.9°F 62.9°F 59.5°F
Mar 30 61.1°F 62.9°F 59.8°F
Mar 31 60.9°F 61.6°F 59.0°F

Sea water temperature in San Diego by month

In an average year, San Diego offers no days when the water temperature is warm enough to swim comfortably. The warmest water in San Diego was recorded on August 7, 2018, reaching a 75.8°F. While the coldest temperature occurred on February 25, 2023, dipping to 55.9°F. The average readings by season are 60.1°F in Winter, 61.8°F in Spring, 68.6°F in Summer, and 66.8°F in Autumn. The average temperature in March is slightly warmer than February's average of 59.5°F. And in April, the temperature is expected to rise further, potentially reaching an average of 61.4°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Tijuana 62.7°F 17mi
Oceanside 64.9°F 35mi
Laguna Beach 62.6°F 67mi

* current water temperature in this city

** straight line distance from San Diego