St Petersburg weather in August 2025

Expect 68°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in St Petersburg in August. Check more long-term weather averages for St Petersburg in August before you book your next holiday to Russia (Europe) in 2025/2026.

  • 68°F maximum daytime temperature in August in St Petersburg68
    68°F max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in August in St Petersburg15
    15 days with some rainfall
  • 55°F minimum night-time temperature in August in St Petersburg55
    55°F min night temperature
  • 16 hours of daylight per day in August in St Petersburg16
    16 hours of daylight per day
  • No heat & humidity in August in St Petersburg0
    No heat & humidity
  • 3.3 inches monthly rainfall in August in St Petersburg3.3
    3.3 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in August in St Petersburg4
    4 (Moderate) UV index
  • 52°F sea temperature in August in St Petersburg52
    52°F sea temperature

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The August weather guide for Russia (Europe) (St Petersburg) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in St Petersburg in August?

Daytime temperatures usually reach 68°F in St Petersburg in August, falling to 55°F at night.

How sunny is it in St Petersburg in August?

There are normally 7 hours of bright sunshine each day in St Petersburg in August - that's 44% of daylight hours.

How warm is the sea around St Petersburg in August?

The average sea temperature around St Petersburg in August is 52°F.

Does it rain in St Petersburg in August?

There are usually 15 days with some rain in St Petersburg in August and the average monthly rainfall is 3.3 inches.

St Petersburg August sunrise & sunset times

Browse the sunrise and sunset times for St Petersburg in August 2025. Select a month to view St Petersburg sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:40 21:28
Saturday, 16th August 2025 05:16 20:48
Sunday, 31st August 2025 05:52 20:05

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