Saint Petersburg, Russia Climate & Monthly Averages
The climate of Saint Petersburg
Weather in Saint Petersburg is shaped by its humid continental climate - expect warm summers and cold, often snowy winters. July afternoons typically reach 71°F (22°C), while January highs hover near 26°F (-3°C). Annual precipitation averages 29.3 inches (745 mm) over about 153 rainy days.
Climate quick facts
- Hottest month: July - highs near 71°F (22°C)
- Coldest month: January - highs near 26°F (-3°C)
- Record high: 94°F (34°C) · Record low: -25°F (-31°C) (2015–2024)
- Wettest month: August (14 rainy days) · Sunniest: June (14.6 h sun/day)
- Climate type: humid continental - warm summers and cold, often snowy winters
- Snow: about 39 days a year
Temperatures through the year
The warmest stretch of the year centers on July. Highs average 71°F (22°C) and overnight lows stay near 59°F (15°C). The coolest month is January, with typical highs of 26°F (-3°C) and lows around 18°F (-8°C). Based on 2015–2024 weather data, temperatures have reached as high as 94°F (34°C) and dropped as low as -25°F (-31°C).
Rain, sun and snow
August is usually the wettest month. It brings about 4.3 inches (110 mm) of rain over 14 days, while March is the driest. June brings the most sunshine, averaging 14.6 hours of sun a day. Snow falls on about 39 days in a typical year, mostly from October through April.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 26° | 18° | 14 | 1.9 in | 1.3 h/day | 87% |
| February | 29° | 20° | 12 | 1.8 in | 2.9 h/day | 86% |
| March | 36° | 24° | 10 | 1.6 in | 6.6 h/day | 81% |
| April | 46° | 32° | 12 | 2.1 in | 9.4 h/day | 76% |
| May | 59° | 44° | 10 | 1.8 in | 12.8 h/day | 68% |
| June | 69° | 55° | 10 | 2.2 in | 14.6 h/day | 68% |
| July | 71° | 59° | 16 | 3.7 in | 12.8 h/day | 75% |
| August | 69° | 57° | 14 | 4.3 in | 11.1 h/day | 78% |
| September | 60° | 50° | 12 | 2.5 in | 8.1 h/day | 81% |
| October | 47° | 39° | 14 | 2.8 in | 4.8 h/day | 85% |
| November | 37° | 31° | 13 | 2.2 in | 1.6 h/day | 88% |
| December | 31° | 24° | 15 | 2.2 in | 0.9 h/day | 88% |
Saint Petersburg month by month
Saint Petersburg weather in January
January brings highs around 26°F (-3°C), lows near 18°F (-8°C), about 14 wet days and roughly 10 snowy days - typically the coldest month of the year in Saint Petersburg.
Saint Petersburg weather in February
February brings highs around 29°F (-2°C), lows near 20°F (-7°C), about 12 wet days and roughly 8 snowy days.
Saint Petersburg weather in March
March brings highs around 36°F (2°C), lows near 24°F (-4°C), about 10 wet days and roughly 4 snowy days - typically the driest month of the year in Saint Petersburg.
Saint Petersburg weather in April
April brings highs around 46°F (8°C), lows near 32°F (0°C), about 12 wet days and roughly 3 snowy days.
Saint Petersburg weather in May
May brings highs around 59°F (15°C), lows near 44°F (6°C), about 10 wet days.
Saint Petersburg weather in June
June brings highs around 69°F (20°C), lows near 55°F (13°C), about 10 wet days - typically the sunniest month of the year in Saint Petersburg.
Saint Petersburg weather in July
July brings highs around 71°F (22°C), lows near 59°F (15°C), about 16 wet days - typically the hottest month of the year in Saint Petersburg.
Saint Petersburg weather in August
August brings highs around 69°F (21°C), lows near 57°F (14°C), about 14 wet days - typically the wettest month of the year in Saint Petersburg.
Saint Petersburg weather in September
September brings highs around 60°F (16°C), lows near 50°F (10°C), about 12 wet days.
Saint Petersburg weather in October
October brings highs around 47°F (8°C), lows near 39°F (4°C), about 14 wet days.
Saint Petersburg weather in November
November brings highs around 37°F (3°C), lows near 31°F (0°C), about 13 wet days and roughly 5 snowy days.
Saint Petersburg weather in December
December brings highs around 31°F (-1°C), lows near 24°F (-4°C), about 15 wet days and roughly 8 snowy days.
Seasons in Saint Petersburg
Spring (March through May)
Spring in Saint Petersburg runs cold, with daytime highs averaging 47°F (8°C) and nights around 33°F (1°C); expect showers on roughly 32 days across the season, plus around 8 snowy days.
Summer (June through August)
Summer in Saint Petersburg is mild and warm, with daytime highs averaging 70°F (21°C) and nights around 57°F (14°C); expect showers on roughly 41 days across the season.
Fall (September through November)
Fall in Saint Petersburg is chilly, with daytime highs averaging 48°F (9°C) and nights around 40°F (4°C); expect showers on roughly 39 days across the season, plus around 5 snowy days.
Winter (December through February)
Winter in Saint Petersburg is frigid, with daytime highs averaging 29°F (-2°C) and nights around 21°F (-6°C); expect showers on roughly 41 days across the season, plus around 27 snowy days. Wind makes those temperatures feel harsher than they sound - pair the forecast winds with the wind speed converter to judge conditions on exposed skin.
Climate questions, answered
What is the average temperature in Saint Petersburg?
Is Saint Petersburg hot in summer?
Is Saint Petersburg cold in winter?
How many rainy days does Saint Petersburg get in a year?
Best time to visit Saint Petersburg
The best time to visit Saint Petersburg is generally May to June and August to September, when this window offers the warmest, brightest days of the year. Daytime temperatures in that window typically sit near 64°F (18°C).
Pack for Saint Petersburg with a heavy insulated coat, hat and gloves for winter; a compact umbrella or rain shell - showers are a regular feature. Evenings can feel noticeably cooler than afternoons - July nights average 59°F (15°C).
Saint Petersburg temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.