The highest day temperature in March 2025 was 73°F. The lowest night temperature was 50°F. The average values for day and night temperatures during March were 60.1°F и 53.9°F respectivly.

The average sea surface temperature in March 2025 for Santa Monica was 57.0°F. The maximum and minimum values were 55.0°F and 60.2°F respectively.

Most of the days in March are sunny but you can also expect cloudy and gloomy days.

Precipitation total in March for Santa Monica is 1.3 in. It makes march one of the most rainy months of the year.

The average wind speed in March is 6.6 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Santa Monica in March is 8.3 hours.