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Climate · Saint Petersburg

Saint Petersburg in September

Mild and damp, as the days shorten.

Typical weather, averaged over 30 years

September in Saint Petersburg is mild: highs near 62°F, lows near 49°F. Rain falls on about three days a week, and the days shorten by 1 hour 57 minutes from the first week to the last.September in Saint Petersburg is mild: highs near 17°C, lows near 9°C. Rain falls on about three days a week, and the days shorten by 1 hour 57 minutes from the first week to the last.

High
62°F17°Caverage
Low
49°F9°Caverage
Wet days
3a week · 40% of days
Daylight
12h 41mon average

Is September a good time to visit Saint Petersburg?

September sits outside Saint Petersburg's best months, which run from June to August. Expect mild days and rain on about three days a week.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How September sits in the year

week by week

Temperature

Highs near 62°F in September, against 27°F to 74°F through the year.Highs near 17°C in September, against -3°C to 23°C through the year.

Chance of a wet day

40% of days in September, against 35% to 48% through the year.

Cloud cover

58% cover in September, against 49% to 78% through the year.

Daylight

12h 41m in September, against 6h 01m to 18h 41m through the year.

Week by week, lightly smoothed, with September shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. August72°22°low 57°low 14°3 wet days a weekRain on about three days a week.
  2. September62°17°low 49°low 9°3 wet days a weekRain on about three days a week.
  3. October51°11°low 40°low 4°3 wet days a weekRain on about three days a week.

Where Saint Petersburg sits, in September

Europe/Moscow
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
6:24 AMsets 7:24 PM
Above the sea
10 mlow-lying
Latitude
59.9°Nnorthern hemisphere
Nearest of ours
Moscow635 km south-east

The land around Saint Petersburg, shaded by its typical high in September, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Russia in September

high · low · wet days
See September on the planning mapThe whole year in Saint Petersburg

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Saint Petersburg. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match.Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match. Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.