Current sea water temperature:
+66.6°F
| Minimum sea water temperature in December: | 73.4°F |
| Maximum sea water temperature in December: | 57.7°F |
| Average sea water temperature in December: | 66.8°F |
| more information | |
14 days
forecast
forecast
| St. Petersburg |
monthly
weather
weather
| St. Petersburg |
Sea water temperature for the last 10 days:
| December 24 | 66.6°F | December 19 | 65.1°F |
| December 23 | 66.9°F | December 18 | 64.8°F |
| December 22 | 66.2°F | December 17 | 65.5°F |
| December 21 | 66.2°F | December 16 | 66.4°F |
| December 20 | 66.0°F | December 15 | 67.8°F |
Monthly sea water temperature, °F
When is the warmest sea in St. Petersburg?
Based on the data about daily sea water temperature for the last three years the warmest sea in St. Petersburg was noticed in August, July and September.
Monthly Sea Temperatures in St. Petersburg, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 88.7°F. The highest and lowest sea temperatures during the month were 91.4°F and 86.0°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 87.0°F. The highest and lowest sea temperatures during the month were 89.6°F and 85.1°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 84.1°F. The highest and lowest sea temperatures during the month were 86.4°F and 81.9°F.
current
weather
weather
| St. Petersburg |
weather in
December
December
| St. Petersburg |
Best time for vacation in St. Petersburg
St. Petersburg on a weather map
Places in USA:
Name
°F
24 Hours Forecast
St. Petersburg
Local time: 16:11
December 24, wednesday
1800
77°F
SE
9 mph
9 mph
2100
68°F
S
9 mph
9 mph
December 25, thursday
0000
64°F
SW
6 mph
6 mph
0300
63°F
SW
4 mph
4 mph
0600
61°F
SW
4 mph
4 mph
0900
61°F
S
6 mph
6 mph
1200
64°F
S
4 mph
4 mph
1500
70°F
E
6 mph
6 mph
