Thermograph

How unusual is the weather? Graded against ~45 years of local climate history.

Saint Petersburg, St.-Petersburg, Russia climate

Average temperatures, precipitation and all-time records for Saint Petersburg, St.-Petersburg, Russia, with every day graded against ~45 years of local climate history (1981–2026). Its warmest month is July, averaging a high of 21°C, and its coldest is February, with an average low of -12°C.

Saint Petersburg, formerly known as Petrograd (Петроград) and later Leningrad (Ленинград), is the second-largest city in Russia, after Moscow, the nation's capital. via Wikipedia

How today compares

Latest recorded day: 2026-07-21. Each reading placed on Saint Petersburg, St.-Petersburg, Russia's own ±7-day seasonal distribution.

High 16°C Very Low · 4th pct
Low 13°C Below Normal · 36th pct
Feels-like 10°C Very Low · 5th pct
Humidity 10.4 g/m³ Low · 15th pct
Wind 27 km/h Near Record · 99th pct
Precip 10 mm Very Heavy · 94th pct

Open Saint Petersburg in the live weather grader →

Saint Petersburg average temperatures by month

Typical daily high and low, and average precipitation, for each month in Saint Petersburg, St.-Petersburg, Russia, based on 1981–2026 records. The wettest month is January (3 mm on an average day).

MonthAvg highAvg lowAvg precip
January -6°C -12°C 3 mm
February -6°C -12°C 3 mm
March -1°C -6°C 3 mm
April 7°C 0°C 3 mm
May 14°C 5°C 3 mm
June 19°C 11°C 3 mm
July 21°C 14°C 3 mm
August 20°C 13°C 3 mm
September 15°C 8°C 3 mm
October 7°C 3°C 3 mm
November 0°C -4°C 3 mm
December -5°C -9°C 3 mm

Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.

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Record extremes

  • Hottest day on record: 31°C on 2010-07-12
  • Coldest day on record: -46°C on 1987-01-10

All Saint Petersburg weather records →

Percentiles compare each day to Saint Petersburg, St.-Petersburg, Russia's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →