The highest day temperature in March 2026 was 93°F. The lowest night temperature was 45°F. The average values for day and night temperatures during March were 78.0°F и 54.1°F respectivly.

The average sea surface temperature in March 2026 for San Jose was 61.9°F. The maximum and minimum values were 58.2°F and 64.6°F respectively.

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

Precipitation total in March for San Jose is 1.6 in. It makes march one of the most rainy months of the year.

The average wind speed in March is 5.8 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 San Jose in March is 7.1 hours.