Saint Petersburg, St.-Petersburg Weather by Month and Climate Averages

How much rain does Saint Petersburg get?

Saint Petersburg gets 668 mm of precipitation in an average year, spread over about 173 days with measurable rain. That is more rainy days than 82% of Russia.

August is the wettest month, with 86 mm. March is the driest, with 35 mm. January has the most rainy days, about 20.

The longest dry spell in the last five years lasted 16 days, to March 23, 2022.

Saint Petersburg weather by month

Saint Petersburg weather in January

In January, Saint Petersburg averages a high of -3°C and a low of -7°C. It gets 46 mm of precipitation over about 20 rainy days. The sun is out about 12% of daylight hours. The January record high is 9°C (2007) and the record low is -34°C (1987).

Saint Petersburg weather in February

In February, Saint Petersburg averages a high of -2°C and a low of -8°C. It gets 36 mm of precipitation over about 16 rainy days. The sun is out about 15% of daylight hours. The February record high is 10°C (1989) and the record low is -32°C (1979).

Saint Petersburg weather in March

In March, Saint Petersburg averages a high of 2°C and a low of -4°C. It gets 35 mm of precipitation over about 13 rainy days. The sun is out about 36% of daylight hours. The March record high is 16°C (2025) and the record low is -22°C (1977).

Saint Petersburg weather in April

In April, Saint Petersburg averages a high of 9°C and a low of 2°C. It gets 37 mm of precipitation over about 11 rainy days. The sun is out about 39% of daylight hours. The April record high is 26°C (2000) and the record low is -12°C (1998).

Saint Petersburg weather in May

In May, Saint Petersburg averages a high of 16°C and a low of 7°C. It gets 47 mm of precipitation over about 10 rainy days. The sun is out about 47% of daylight hours. The May record high is 33°C (2014) and the record low is -3°C (1999).

Saint Petersburg weather in June

In June, Saint Petersburg averages a high of 21°C and a low of 12°C. It gets 69 mm of precipitation over about 13 rainy days. The sun is out about 54% of daylight hours. The June record high is 36°C (2021) and the record low is 1°C (1982). June is one of the most comfortable months to visit.

Saint Petersburg weather in July

In July, Saint Petersburg averages a high of 23°C and a low of 16°C. It gets 84 mm of precipitation over about 12 rainy days. The sun is out about 40% of daylight hours. The July record high is 36°C (2010) and the record low is 6°C (1987). July is one of the most comfortable months to visit.

Saint Petersburg weather in August

In August, Saint Petersburg averages a high of 22°C and a low of 14°C. It gets 86 mm of precipitation over about 13 rainy days. The sun is out about 39% of daylight hours. The August record high is 37°C (2010) and the record low is 3°C (1973).

Saint Petersburg weather in September

In September, Saint Petersburg averages a high of 16°C and a low of 9°C. It gets 57 mm of precipitation over about 13 rainy days. The sun is out about 33% of daylight hours. The September record high is 31°C (1992) and the record low is -3°C (1976).

Saint Petersburg weather in October

In October, Saint Petersburg averages a high of 9°C and a low of 4°C. It gets 64 mm of precipitation over about 16 rainy days. The sun is out about 23% of daylight hours. The October record high is 21°C (1974) and the record low is -9°C (1988).

Saint Petersburg weather in November

In November, Saint Petersburg averages a high of 3°C and a low of -1°C. It gets 56 mm of precipitation over about 16 rainy days. The sun is out about 15% of daylight hours. The November record high is 12°C (2011) and the record low is -20°C (1984).

Saint Petersburg weather in December

In December, Saint Petersburg averages a high of -1°C and a low of -5°C. It gets 51 mm of precipitation over about 19 rainy days. The sun is out about 11% of daylight hours. The December record high is 11°C (2006) and the record low is -34°C (1978).

Sunshine, humidity and wind in Saint Petersburg

June is the sunniest month in Saint Petersburg, with sunshine about 54% of daylight hours. December is the cloudiest, at 11%. Over the year the sun shines about 30% of daylight hours. Saint Petersburg is cloudier than 62% of Russia.

Humidity peaks in January at 89% and is lowest in May at 66%.

Saint Petersburg has about 2 days a year above 32°C. Saint Petersburg is cooler than 80% of Russia.

First and last freeze in Saint Petersburg

The first fall freeze in Saint Petersburg typically comes around October 17, and the last spring freeze around April 26. That leaves a frost-free growing season of about 174 days.

Saint Petersburg weather records

The hottest temperature on record at the Saint Petersburg station is 37°C, on August 7, 2010. The coldest is -34°C, on January 10, 1987.

The wettest day on record brought 69 mm of rain, on July 16, 2002.

33 all-time records have been set at the station since 1970.

The annual mean temperature has changed by +0.4°C per decade since 1970.

The best time to visit Saint Petersburg

The most comfortable time to visit is typically June to July, when daytime highs sit near 22°C.

Winter (December–February) is cold, with average highs around -2°C and lows near -7°C.

Spring (March–May) is chilly, with average highs around 9°C and lows near 2°C.

Summer (June–August) is warm, with average highs around 22°C and lows near 14°C. It can feel humid.

Autumn (September–November) is chilly, with average highs around 9°C and lows near 4°C.

Saint Petersburg climate questions

How much rain does Saint Petersburg get?

Saint Petersburg gets 668 mm of precipitation in an average year, over about 173 rainy days.

What is the wettest month in Saint Petersburg?

August is the wettest month in Saint Petersburg, with 86 mm. March is the driest, with 35 mm.

How many rainy days does Saint Petersburg have a year?

Saint Petersburg has about 173 days with measurable rain in an average year. January has the most, about 20.

What is the hottest month in Saint Petersburg?

July is the warmest month in Saint Petersburg, with an average high of 23°C.

What is the coldest month in Saint Petersburg?

February is the coldest month in Saint Petersburg, with an average low of -8°C.

What is the record high temperature in Saint Petersburg?

The record high at the Saint Petersburg station is 37°C, set on August 7, 2010. The record low is -34°C, on January 10, 1987.

What is the sunniest month in Saint Petersburg?

June is the sunniest month in Saint Petersburg, with sunshine about 54% of daylight hours. December is the cloudiest.

When is the first frost in Saint Petersburg?

The first fall freeze in Saint Petersburg typically comes around October 17. The last spring freeze is around April 26.

What is the best time to visit Saint Petersburg?

The most comfortable time to visit is typically June to July, when daytime highs sit near 22°C.