Measurements:
°C
°F
CURRENT WEATHER
10:19
St Petersburg
50°F
SE 1 mph
Feels like: 50°F
Precip: 19%
World Resorts Russia St Petersburg Weather

7 Day Weather Forecast

09.15
tue
DAY
60°F
E 3 mph
precip
3%
NIGHT
48°F
NW 5 mph
precip
23%
09.16
wed
DAY
54°F
NW 7 mph
precip
24%
NIGHT
56°F
N 9 mph
precip
29%
09.17
thu
DAY
60°F
NE 11 mph
precip
33%
NIGHT
54°F
NE 7 mph
precip
27%
09.18
fri
DAY
56°F
NE 10 mph
precip
24%
NIGHT
56°F
NE 11 mph
precip
26%
09.19
sat
DAY
56°F
NE 13 mph
precip
46%
NIGHT
52°F
NE 9 mph
precip
25%
09.20
sun
DAY
58°F
NE 12 mph
precip
42%
NIGHT
50°F
NE 12 mph
precip
49%
09.21
mon
DAY
58°F
E 11 mph
precip
15%
NIGHT
48°F
SE 4 mph
precip
33%

St Petersburg Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for St Petersburg was 13.8°F. The maximum and minimum values were 7.7°F and 17.2°F respectively.

St Petersburg on the Weather Map

Best Time to Visit St Petersburg
The most sunny months:
July 14 days
June 12 days
August 12 days
The most warm months:
July 74.0 °F
August 71.0 °F
June 68.5 °F
Warmest sea temperature:
August 65.2 °F
July 64.8 °F
June 58.4 °F
The most cold months:
January 19.9 °F
February 22.6 °F
December 26.4 °F
The most rainy months:
July 4 days
June 4 days
August 4 days
The most windy months:
December 9 mph
November 9 mph
October 9 mph
more details