Petrozavodsk, Karelia Weather by Month and Climate Averages

Petrozavodsk, Karelia gets 605 mm of precipitation a year over about 182 rainy days. July is the warmest month (average high 22°C) and January the coldest (average low -12°C).

Petrozavodsk climate at a glance

Humid continental climate

Petrozavodsk, Karelia has mild summers and cold winters. Daytime highs range from about -6°C in January to 22°C in July. August is usually the wettest month. The most comfortable time to visit is typically June and August, when daytime highs sit near 19°C.

How much rain does Petrozavodsk get?

Petrozavodsk gets 605 mm of precipitation in an average year, spread over about 182 days with measurable rain. That is more rainy days than 88% of Russia.

July is the wettest month, with 80 mm. February is the driest, with 29 mm. December has the most rainy days, about 21.

The longest dry spell in the last five years lasted 22 days, to April 27, 2023.

Petrozavodsk weather by month

Petrozavodsk weather in January

In January, Petrozavodsk averages a high of -6°C and a low of -12°C. It gets 38 mm of precipitation over about 20 rainy days. The sun is out about 9% of daylight hours. The January record high is 6°C (1971) and the record low is -42°C (1987).

Petrozavodsk weather in February

In February, Petrozavodsk averages a high of -6°C and a low of -12°C. It gets 29 mm of precipitation over about 17 rainy days. The sun is out about 12% of daylight hours. The February record high is 7°C (1990) and the record low is -34°C (1985).

Petrozavodsk weather in March

In March, Petrozavodsk averages a high of 0°C and a low of -7°C. It gets 31 mm of precipitation over about 14 rainy days. The sun is out about 31% of daylight hours. The March record high is 16°C (2007) and the record low is -28°C (1979).

Petrozavodsk weather in April

In April, Petrozavodsk averages a high of 7°C and a low of -1°C. It gets 33 mm of precipitation over about 11 rainy days. The sun is out about 35% of daylight hours. The April record high is 24°C (2000) and the record low is -19°C (1998).

Petrozavodsk weather in May

In May, Petrozavodsk averages a high of 14°C and a low of 4°C. It gets 48 mm of precipitation over about 12 rainy days. The sun is out about 40% of daylight hours. The May record high is 33°C (2014) and the record low is -7°C (2017).

Petrozavodsk weather in June

In June, Petrozavodsk averages a high of 19°C and a low of 9°C. It gets 59 mm of precipitation over about 13 rainy days. The sun is out about 50% of daylight hours. The June record high is 32°C (2021) and the record low is -2°C (2018). June is one of the most comfortable months to visit.

Petrozavodsk weather in July

In July, Petrozavodsk averages a high of 22°C and a low of 13°C. It gets 80 mm of precipitation over about 14 rainy days. The sun is out about 38% of daylight hours. The July record high is 34°C (2010) and the record low is 0°C (2026).

Petrozavodsk weather in August

In August, Petrozavodsk averages a high of 19°C and a low of 11°C. It gets 80 mm of precipitation over about 13 rainy days. The sun is out about 37% of daylight hours. The August record high is 32°C (2010) and the record low is -2°C (1980). August is one of the most comfortable months to visit.

Petrozavodsk weather in September

In September, Petrozavodsk averages a high of 14°C and a low of 7°C. It gets 58 mm of precipitation over about 14 rainy days. The sun is out about 33% of daylight hours. The September record high is 26°C (2024) and the record low is -5°C (1973).

Petrozavodsk weather in October

In October, Petrozavodsk averages a high of 6°C and a low of 2°C. It gets 55 mm of precipitation over about 16 rainy days. The sun is out about 21% of daylight hours. The October record high is 21°C (2005) and the record low is -13°C (1993).

Petrozavodsk weather in November

In November, Petrozavodsk averages a high of 0°C and a low of -4°C. It gets 50 mm of precipitation over about 19 rainy days. The sun is out about 12% of daylight hours. The November record high is 11°C (2005) and the record low is -26°C (1992).

Petrozavodsk weather in December

In December, Petrozavodsk averages a high of -3°C and a low of -8°C. It gets 43 mm of precipitation over about 21 rainy days. The sun is out about 9% of daylight hours. The December record high is 9°C (2006) and the record low is -37°C (1978).

Sunshine, humidity and wind in Petrozavodsk

June is the sunniest month in Petrozavodsk, with sunshine about 50% of daylight hours. January is the cloudiest, at 9%. Over the year the sun shines about 27% of daylight hours. Petrozavodsk is cloudier than 76% of Russia.

Humidity peaks in November at 91% and is lowest in May at 62%.

First and last freeze in Petrozavodsk

The first fall freeze in Petrozavodsk typically comes around September 28, and the last spring freeze around May 25. That leaves a frost-free growing season of about 126 days.

Petrozavodsk weather records

The hottest temperature on record at the Petrozavodsk station is 34°C, on July 14, 2010. The coldest is -42°C, on January 12, 1987.

The wettest day on record brought 97 mm of rain, on August 13, 2021.

41 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 Petrozavodsk

The most comfortable time to visit is typically June and August, when daytime highs sit near 19°C.

Winter (December–February) is cold, with average highs around -5°C and lows near -10°C.

Spring (March–May) is chilly, with average highs around 7°C and lows near -1°C.

Summer (June–August) is mild, with average highs around 20°C and lows near 11°C. It can feel humid.

Autumn (September–November) is chilly, with average highs around 7°C and lows near 1°C.

Monthly climate

MonthPrecipRain daysHumiditySunshineSea tempRecord highRecord low
January38 mm2088%9%-18°-42°
February29 mm1786%12%-18°-34°
March31 mm1475%31%-18°16°-28°
April33 mm1168%35%-18°24°-19°
May48 mm1262%40%-17°33°-7°
June59 mm1364%50%-12°32°-2°
July80 mm1473%38%-7°34°
August80 mm1378%37%-7°32°-2°
September58 mm1482%33%-10°26°-5°
October55 mm1688%21%-13°21°-13°
November50 mm1991%12%-15°11°-26°
December43 mm2188%9%-17°-37°

From ERA5 reanalysis. Sunshine is estimated from cloud cover.

Petrozavodsk climate questions

How much rain does Petrozavodsk get?

Petrozavodsk gets 605 mm of precipitation in an average year, over about 182 rainy days.

What is the wettest month in Petrozavodsk?

July is the wettest month in Petrozavodsk, with 80 mm. February is the driest, with 29 mm.

How many rainy days does Petrozavodsk have a year?

Petrozavodsk has about 182 days with measurable rain in an average year. December has the most, about 21.

What is the hottest month in Petrozavodsk?

July is the warmest month in Petrozavodsk, with an average high of 22°C.

What is the coldest month in Petrozavodsk?

January is the coldest month in Petrozavodsk, with an average low of -12°C.

What is the record high temperature in Petrozavodsk?

The record high at the Petrozavodsk station is 34°C, set on July 14, 2010. The record low is -42°C, on January 12, 1987.

What is the sunniest month in Petrozavodsk?

June is the sunniest month in Petrozavodsk, with sunshine about 50% of daylight hours. January is the cloudiest.

When is the first frost in Petrozavodsk?

The first fall freeze in Petrozavodsk typically comes around September 28. The last spring freeze is around May 25.

What is the best time to visit Petrozavodsk?

The most comfortable time to visit is typically June and August, when daytime highs sit near 19°C.

Source: NOAA GHCN-Daily station PETROZAWODSK (6 km away).

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Normals from NOAA GHCN-Daily station PETROZAWODSK.