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Petrozavodsk, Karelia Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Petrozavodsk, Karelia?
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).
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.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | -11° | -5° |
| Spring | Mar–May | -2° | 7° |
| Summer | Jun–Aug | 11° | 20° |
| Autumn | Sep–Nov | 1° | 7° |
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.
From October 2025 to September 2026 Petrozavodsk got 396 mm of rain, against a normal of 605 mm for those months. December 2025 had the most, with 103 mm.
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. Estimated sunshine is 9% of daylight hours, derived from ERA5 cloud cover. 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. Estimated sunshine is 12% of daylight hours, derived from ERA5 cloud cover. 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. Estimated sunshine is 31% of daylight hours, derived from ERA5 cloud cover. 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. Estimated sunshine is 35% of daylight hours, derived from ERA5 cloud cover. 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. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. 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. Estimated sunshine is 50% of daylight hours, derived from ERA5 cloud cover. 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. Estimated sunshine is 38% of daylight hours, derived from ERA5 cloud cover. 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. Estimated sunshine is 37% of daylight hours, derived from ERA5 cloud cover. 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. Estimated sunshine is 33% of daylight hours, derived from ERA5 cloud cover. 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. Estimated sunshine is 21% of daylight hours, derived from ERA5 cloud cover. 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. Estimated sunshine is 12% of daylight hours, derived from ERA5 cloud cover. 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. Estimated sunshine is 9% of daylight hours, derived from ERA5 cloud cover. 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 estimated sunshine of 50% of daylight hours from ERA5 cloud cover. January is the cloudiest, at 9%. The annual cloud-cover estimate is 27% of daylight hours; it is not a measurement of sunshine duration. 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
These records cover PETROZAWODSK during 1970–2026. Earlier records or other stations in the city may differ.
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 in the available station history brought 97 mm of precipitation, 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
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | -12° | -6° | 38 mm | 20 | 88% | 9% | 6° | -42° |
| February | -12° | -6° | 29 mm | 17 | 86% | 12% | 7° | -34° |
| March | -7° | 0° | 31 mm | 14 | 75% | 31% | 16° | -28° |
| April | -1° | 7° | 33 mm | 11 | 68% | 35% | 24° | -19° |
| May | 4° | 14° | 48 mm | 12 | 62% | 40% | 33° | -7° |
| June | 9° | 19° | 59 mm | 13 | 64% | 50% | 32° | -2° |
| July | 13° | 22° | 80 mm | 14 | 73% | 38% | 34° | 0° |
| August | 11° | 19° | 80 mm | 13 | 78% | 37% | 32° | -2° |
| September | 7° | 14° | 58 mm | 14 | 82% | 33% | 26° | -5° |
| October | 2° | 6° | 55 mm | 16 | 88% | 21% | 21° | -13° |
| November | -4° | 0° | 50 mm | 19 | 91% | 12% | 11° | -26° |
| December | -8° | -3° | 43 mm | 21 | 88% | 9% | 9° | -37° |
Station: PETROZAWODSK, 6 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
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?
Within the available 1970–2026 station history, 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 estimated sunshine of 50% of daylight hours from ERA5 cloud cover. 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.