30.08
sun
sun
Day
86°F
W 6 mph
Precip.
83%
83%
Night
86°F
W 15 mph
Precip.
18%
18%
31.08
mon
mon
Day
86°F
W 6 mph
Precip.
4%
4%
Night
79°F
NW 14 mph
Precip.
23%
23%
01.09
tue
tue
Day
88°F
W 9 mph
Precip.
22%
22%
Night
84°F
W 17 mph
Precip.
32%
32%
02.09
wed
wed
Day
86°F
W 9 mph
Precip.
16%
16%
Night
84°F
W 16 mph
Precip.
8%
8%
03.09
thu
thu
Day
84°F
W 4 mph
Precip.
4%
4%
Night
79°F
NW 16 mph
Precip.
24%
24%
04.09
fri
fri
Day
84°F
NW 10 mph
Precip.
19%
19%
Night
84°F
NW 9 mph
Precip.
15%
15%
05.09
sat
sat
Day
84°F
N 8 mph
Precip.
14%
14%
Night
86°F
SW 5 mph
Precip.
15%
15%
sea water
temperature
temperature
| St. Petersburg |
monthly
weather
weather
| St. Petersburg |
current
weather
weather
| St. Petersburg |
14 days
forecast
forecast
| St. Petersburg |
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 86.7°F. The highest and lowest sea temperatures during the month were 88.9°F and 84.9°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.
Air temperature in St. Petersburg, °F
Precipitation total in St. Petersburg, in.
* Charts above show average data for the last 3 years.
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: 04:06
August 30, sunday
0600
75°F
W
8 mph
8 mph
0900
79°F
W
8 mph
8 mph
1200
86°F
W
6 mph
6 mph
1500
88°F
E
4 mph
4 mph
1800
90°F
N
2 mph
2 mph
2100
88°F
E
2 mph
2 mph
August 31, monday
0000
86°F
W
15 mph
15 mph
0300
84°F
NW
7 mph
7 mph
