See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
12°
Mostly Cloudy
Feels Like: 8°
Min: 12°
Max: 16°
The next few hours will be mostly cloudy, with today reaching 16°C and dropping to 12°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:30
Sunrise
19:18
Sunset
Moon
Waxing Crescent
08:07
Moonrise
19:12
Moonset
Daily Forecast
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Sunday
Monday
Tuesday
Wednesday
Thursday
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Sunday
Monday
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Weather in Saint Petersburg today, September 12, 2026
Expect unsettled, showery conditions in Saint Petersburg on September 12, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans. The first half of the day looks overcast, as cloud amounts reach about 87% around 09:00. Brighter weather, if it comes, waits until later.
The day peaks near 16°C and cools toward 12°C. Relative humidity sits between 59% and 94%, reaching its peak around 07:00. Winds stay light, near 3.0 km/h by 13:00, so the day feels still more than breezy.
The afternoon keeps an overcast feel, as cloud reaches about 100% around 16:00. Outdoor plans may still want a flexible backup. Expect visibility near 31.5 km, with poorer spells close to 15.5 km. Sunrise is at 06:30 and sunset at 19:18, giving 12 hours 47 minutes of sunlight today.
In short, treat September 12, 2026 in Saint Petersburg as a damp day: pack covers, watch the wetter hours, and expect a high near 16°C.
Frequently asked questions about weather in Saint Petersburg
How warm does it get in Saint Petersburg?
The warmest month in Saint Petersburg is July, with average high temperatures of 22°C. The average temperature during this period is around 18°C.
How cold does it get in Saint Petersburg?
The coldest month in Saint Petersburg is January, with average low temperatures of -7°C. The average temperature during this period is around -5°C.
What is the wettest time of year in Saint Petersburg?
The wettest month in Saint Petersburg is August, with an average of 111mm of precipitation.
What is the driest time of year in Saint Petersburg?
The driest month in Saint Petersburg is May, with an average of 43mm of precipitation.
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