The highest day temperature in January 2026 was 85°F. The lowest night temperature was 37°F. The average values for day and night temperatures during January were 68.7°F и 55.2°F respectivly.

The average sea surface temperature in January 2026 for St. Petersburg was 65.0°F. The maximum and minimum values were 59.4°F and 71.0°F respectively.

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

Precipitation total in January for St. Petersburg is 0.4 in. It makes january one of the least rainy months of the year.

The average wind speed in January is 11.6 mph.

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 January is 6.8 hours.