Avg high
16°C
Avg low
9°C
Rainfall
63 mm
Rain days
11.8
Sunshine
8.4 h/day
Daylight
12.5 h
What to pack for Saint Petersburg in September
- long sleeves and a warm layer
- a medium jacket
- a compact umbrella or rain shell — rain is frequent
Humidity averages 80%; max daily wind around 20 km/h.
How September compares
Best months in Saint Petersburg: June. See the full best time to visit Saint Petersburg guide.
Saint Petersburg in September: the details
In September, Saint Petersburg sees average daytime highs of 16°C (61°F) and overnight lows of 9°C (49°F). Rainfall totals roughly 63 mm across 11.8 rainy days, and the sun shines about 8.4 hours per day with 12.5 hours of daylight mid-month. Relative humidity averages 80%.
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Saint Petersburg, Russia (59.94, 30.31) — see our methodology. Actual conditions vary year to year.
Where should you go next month?
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