Measurements:
°C
°F
St. Petersburg
88°F
W 19 mph
Feels like: 90°F
Precip: 1%
World Resorts USA St. Petersburg Weather

St. Petersburg Sea Water Temperature

Current Sea Water Temperature:
+89.0°F
Maximum Sea Water Temperature in June: 92.8°F
Minimum Sea Water Temperature in June: 83.8°F
Average water temperature in June: 88.9°F

Sea Water Temperature for the Last 10 Days:

June 04 89.0°F May 29 89.0°F
June 03 89.0°F May 28 88.6°F
June 01 89.6°F May 27 88.6°F
May 31 89.8°F May 26 88.6°F
May 30 89.4°F May 25 88.6°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: 2025 2024 2023

The average sea surface temperature in August 2025 for St. Petersburg was 93.0°F. The maximum and minimum values were 90.0°F and 96.0°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for St. Petersburg was 91.2°F. The maximum and minimum values were 89.0°F and 94.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for St. Petersburg was 87.9°F. The maximum and minimum values were 85.4°F and 90.4°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 91.7 °F
August 91.5 °F
June 89.6 °F
Warmest sea temperature:
August 91.6 °F
July 91.3 °F
September 89.0 °F
The most cold months:
January 66.0 °F
February 70.5 °F
December 70.5 °F
The most rainy months:
July 4 days
September 4 days
August 3 days
The most windy months:
April 12 mph
November 12 mph
October 12 mph

St. Petersburg on the Weather Map

USA Resorts:
NAME
Boston +90
Chicago +76
Hawaii +78
Honolulu +78
Houston +86
Las Vegas +92
Los Angeles +70
Maui +70
Miami +82
Miami Beach +84
New York +94
San Diego +64
San Francisco +60
Sarasota +94
Tampa +92
24 Hours Weather Forecast
St. Petersburg
Local time: 12:54
04 jun, thursday
1500 88°F
W
16 mph
1800 88°F
W
17 mph
2100 82°F
W
21 mph
05 jun, friday
0000 80°F
W
19 mph
0300 78°F
W
16 mph
0600 78°F
W
13 mph
0900 80°F
W
14 mph
1200 84°F
W
12 mph