Current sea water temperature:
+74.7°F
| Minimum sea water temperature in March: | 79.5°F |
| Maximum sea water temperature in March: | 64.0°F |
| Average sea water temperature in March: | 71.5°F |
| more information | |
14 days
forecast
forecast
| St. Petersburg |
monthly
weather
weather
| St. Petersburg |
Sea water temperature for the last 10 days:
| March 16 | 74.7°F | March 11 | 74.8°F |
| March 15 | 74.5°F | March 10 | 74.5°F |
| March 14 | 74.1°F | March 9 | 72.3°F |
| March 13 | 75.6°F | March 8 | 71.4°F |
| March 12 | 75.6°F | March 7 | 70.9°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
March
March
| 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: 23:55
March 17, tuesday
0000
55°F
S
25 mph
25 mph
0300
48°F
S
22 mph
22 mph
0600
48°F
S
21 mph
21 mph
0900
48°F
S
21 mph
21 mph
1200
50°F
S
18 mph
18 mph
1500
54°F
S
17 mph
17 mph
1800
55°F
SE
16 mph
16 mph
2100
55°F
S
15 mph
15 mph
