16.09
wed
wed
Day

61°F
N 9 mph
Precip.
8%
8%
Night

55°F
N 9 mph
Precip.
29%
29%
17.09
thu
thu
Day

63°F
NE 11 mph
Precip.
21%
21%
Night

54°F
NE 9 mph
Precip.
23%
23%
18.09
fri
fri
Day

57°F
NE 10 mph
Precip.
18%
18%
Night

55°F
N 9 mph
Precip.
26%
26%
19.09
sat
sat
Day

59°F
NE 12 mph
Precip.
21%
21%
Night

55°F
NE 11 mph
Precip.
10%
10%
20.09
sun
sun
Day

61°F
NE 12 mph
Precip.
23%
23%
Night

55°F
N 6 mph
Precip.
51%
51%
21.09
mon
mon
Day

55°F
NW 6 mph
Precip.
67%
67%
Night

48°F
NW 5 mph
Precip.
37%
37%
22.09
tue
tue
Day

54°F
W 6 mph
Precip.
26%
26%
Night

50°F
NW 2 mph
Precip.
35%
35%
23.09
wed
wed
Day

55°F
SW 14 mph
Precip.
42%
42%
Night

45°F
W 6 mph
Precip.
42%
42%
24.09
thu
thu
Day

54°F
NW 4 mph
Precip.
21%
21%
Night

46°F
N 3 mph
Precip.
31%
31%
25.09
fri
fri
Day

55°F
NE 4 mph
Precip.
18%
18%
Night

48°F
SE 4 mph
Precip.
31%
31%
26.09
sat
sat
Day

52°F
S 3 mph
Precip.
23%
23%
Night

48°F
S 6 mph
Precip.
28%
28%
27.09
sun
sun
Day

50°F
SW 6 mph
Precip.
26%
26%
Night

45°F
W 7 mph
Precip.
24%
24%
28.09
mon
mon
Day

54°F
W 11 mph
Precip.
5%
5%
Night

45°F
W 8 mph
Precip.
14%
14%
29.09
tue
tue
Day

52°F
NW 9 mph
Precip.
5%
5%
Night

46°F
W 6 mph
Precip.
28%
28%
sea water
temperature
temperature
| St Petersburg |
monthly
weather
weather
| St Petersburg |
current
weather
weather
| St Petersburg |
7 days
forecast
forecast
| St Petersburg |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 60.1°F. The highest and lowest sea temperatures during the month were 63.5°F and 57.4°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 Russia:
Name
°F
24 Hours Forecast
St Petersburg
Local time: 15:47
September 16, wednesday
1800

63°F
N
8 mph
8 mph
2100

55°F
N
8 mph
8 mph
September 17, thursday
0000

55°F
N
9 mph
9 mph
0300

57°F
N
11 mph
11 mph
0600

57°F
N
12 mph
12 mph
0900

59°F
NE
11 mph
11 mph
1200

63°F
NE
11 mph
11 mph
1500

63°F
NE
12 mph
12 mph



























