Current sea water temperature:
+34.9°F
| Minimum sea water temperature in December: | 37.2°F |
| Maximum sea water temperature in December: | 27.5°F |
| Average sea water temperature in December: | 33.7°F |
| more information | |
14 days
forecast
forecast
| St Petersburg |
monthly
weather
weather
| St Petersburg |
Sea water temperature for the last 10 days:
| December 16 | 34.9°F | December 11 | 34.3°F |
| December 15 | 34.9°F | December 10 | 34.3°F |
| December 14 | 34.7°F | December 9 | 34.3°F |
| December 13 | 34.9°F | December 8 | 34.3°F |
| December 12 | 34.5°F | December 7 | 34.5°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 June.
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 63.1°F. The highest and lowest sea temperatures during the month were 72.0°F and 59.7°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 65.5°F. The highest and lowest sea temperatures during the month were 73.2°F and 58.3°F.
Sea water temperature in June, °F
Show year:
2025
2024
2023
The average sea water temperature in June of 2025 was 56.6°F. The highest and lowest sea temperatures during the month were 59.5°F and 51.8°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 Russia:
Name
°F
24 Hours Forecast
St Petersburg
Local time: 16:59
December 16, tuesday
1800
39°F
E
11 mph
11 mph
2100
37°F
E
9 mph
9 mph
December 17, wednesday
0000
37°F
NE
8 mph
8 mph
0300
37°F
NE
6 mph
6 mph
0600
34°F
NE
6 mph
6 mph
0900
36°F
NE
9 mph
9 mph
1200
36°F
NE
7 mph
7 mph
1500
36°F
N
7 mph
7 mph
