The highest day temperature in March 2026 was 52°F. The lowest night temperature was 10°F. The average values for day and night temperatures during March were 41.4°F и 33.0°F respectivly.

The average sea surface temperature in March 2026 for St Petersburg was 30.7°F. The maximum and minimum values were 26.4°F and 36.2°F respectively.

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

Precipitation total in March for St Petersburg is 1.1 in. It makes march the least rainy month of the year.

The average wind speed in March is 8.6 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 St Petersburg in March is 4.0 hours.