The highest day temperature in October 2025 was 94°F. The lowest night temperature was 65°F. The average values for day and night temperatures during October were 87.0°F и 72.0°F respectivly.

The average sea surface temperature in October 2025 for St. Petersburg was 82.7°F. The maximum and minimum values were 77.2°F and 88.4°F respectively.

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

Precipitation total in October for St. Petersburg is 0.7 in.

The average wind speed in October is 12.1 mph. It makes October one of the most windy months of the year for St. Petersburg.

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 October is 7.7 hours.