California water temperature in March

Is California warm enough to swim in spring? In March sea water temperature throughout California is not yet warm enough for swimming and does not exceed 68°F. Based on average water temperature observations over the past ten years, the warmest ocean in California in March was 65.1°F (in Bombay Beach), and the coldest sea 39°F (in Mono Lake). To find out the sea temperature today and in the coming days, go to Current sea temperature in California

California sea surface temp in March

California cities and resorts with the values of the average water temperature in March in recent years.
For more detailed information about water temperature, surf forecast, weather and time of sunrise and sunset in any specific area of your interest, just click on a city name. For ease of search, all places are also grouped by the first letter of the name.

Water temperature map of California in March

The map shows California average temperature water in March in some coastal cities

To find out what the water temperature was in California any day over a period of the last ten years, select the month

Places with the warmest average ocean water temperature in California in March. Also indicated are the maximum and minimum temperatures in March for these locations based on observations over the past 10 years

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Our report for United States is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.