Measurements:
°C
°F
St Petersburg
54°F
NE 6 mph
Feels like: 52°F
Precip: 27%
World Resorts Russia St Petersburg Weather September Weather in St Petersburg

St Petersburg Weather: September

Average Day Temperature: 60.9°F
Average Night Temperature: 50.5°F
Sea Water Temperature: 57.5°F
Number of Sunny Days: 7 days
Sunshine Hours: 11.5 - 14.1 hours
Number of Rainy Days: 3 days
Precipitation Totals: 1.6 in

Air Temperature in September, °F

Select Year: 2026 2025 2024

The highest day temperature in September 2026 was 70°F. The lowest night temperature was 44°F. The average values for day and night temperatures during September were 60.4°F и 51.9°F respectivly.

St Petersburg Water Sea Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for St Petersburg was 58.9°F. The maximum and minimum values were 50.4°F and 65.0°F respectively.

Sunny, Cloudy and Gloomy days

You can expect various weather conditions during September. Be ready for sunny, cloudy or even gloomy days.

Precipitation Totals in September, in

Precipitation total in September for St Petersburg is 1.6 in.

Wind Speed in September, mph

The average wind speed in September is 8.3 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for St Petersburg in September is 6.3 hours.

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

St Petersburg on the Weather Map

Russia Resorts:
NAME
F°
Adler +66
Anapa +64
Buhta Inal +64
Dombay +62
Gelendzhik +64
Lazarevskoye +64
Mahachkala +66
Moscow +58
Novorossiysk +70
Seliger +50
Shamora +50
Sochi +64
St Petersburg +54
Yaroslavl +54
Zelenogradsk +60
24 Hours Weather Forecast
St Petersburg
Local time: 13:35
05 oct, monday
1500 54°F
NE
6 mph
1800 52°F
NE
8 mph
2100 52°F
NE
9 mph
06 oct, tuesday
0000 54°F
NE
11 mph
0300 54°F
N
14 mph
0600 56°F
NE
16 mph
0900 58°F
NE
19 mph
1200 56°F
E
21 mph