Current sea water temperature:
+48.0°F
| Minimum sea water temperature in May: | 59.9°F |
| Maximum sea water temperature in May: | 32.9°F |
| Average sea water temperature in May: | 46.9°F |
| more information | |
14 days
forecast
forecast
| St Petersburg |
monthly
weather
weather
| St Petersburg |
Sea water temperature for the last 10 days:
| May 16 | 48.0°F | May 11 | 43.9°F |
| May 15 | 48.6°F | May 10 | 41.5°F |
| May 14 | 46.4°F | May 9 | 43.5°F |
| May 13 | 45.7°F | May 8 | 42.4°F |
| May 12 | 45.0°F | May 7 | 42.8°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 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
May
May
| 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: 03:12
May 17, sunday
0600
54°F
N
6 mph
6 mph
0900
57°F
NE
4 mph
4 mph
1200
59°F
E
4 mph
4 mph
1500
61°F
E
6 mph
6 mph
1800
61°F
SE
7 mph
7 mph
2100
52°F
E
4 mph
4 mph
May 18, monday
0000
50°F
S
5 mph
5 mph
0300
52°F
S
4 mph
4 mph
