Measurements:
°C
°F
St. Petersburg
74°F
SW 19 mph
Feels like: 80°F
Precip: 8%
World Resorts USA St. Petersburg Weather

St. Petersburg Sea Water Temperature

Current Sea Water Temperature:
+76.2°F
Maximum Sea Water Temperature in October: 89.6°F
Minimum Sea Water Temperature in October: 71.8°F
Average water temperature in October: 82.6°F

Sea Water Temperature for the Last 10 Days:

October 26 76.2°F October 21 79.4°F
October 25 76.2°F October 20 80.6°F
October 24 76.8°F October 19 82.8°F
October 23 77.4°F October 18 83.8°F
October 22 78.2°F October 17 85.6°F

When is the Warmest Sea for St. Petersburg?

According to our data for the last three years for St. Petersburg the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for St. Petersburg was 90.8°F. The maximum and minimum values were 88.8°F and 93.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for St. Petersburg was 92.1°F. The maximum and minimum values were 89.0°F and 93.6°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for St. Petersburg was 90.1°F. The maximum and minimum values were 85.8°F and 92.0°F respectively.

Best Time to Visit St. Petersburg
The most sunny months:
May 20 days
March 20 days
April 20 days
The most warm months:
July 92.2 °F
August 91.8 °F
June 90.6 °F
Warmest sea temperature:
August 91.5 °F
July 91.5 °F
September 89.2 °F
The most cold months:
January 66.0 °F
February 70.5 °F
December 70.5 °F
The most rainy months:
August 4 days
July 4 days
September 4 days
The most windy months:
October 12 mph
April 12 mph
November 12 mph

St. Petersburg on the Weather Map

USA Resorts:
NAME
F°
Boston +58
Chicago +58
Hawaii +80
Houston +74
Las Vegas +64
Los Angeles +74
Maui +72
Miami +82
New York +62
Panama City Beach +64
San Diego +74
San Francisco +60
Santa Monica +72
Tampa +72
Washington +58
24 Hours Weather Forecast
St. Petersburg
Local time: 00:49
27 oct, tuesday
0300 72°F
SW
17 mph
0600 72°F
S
16 mph
0900 72°F
S
17 mph
1200 80°F
SW
16 mph
1500 84°F
SW
15 mph
1800 84°F
SW
19 mph
2100 78°F
SW
21 mph
28 oct, wednesday
0000 76°F
SW
17 mph