Bratsk, Irkutsk Oblast Weather by Month and Climate Averages

How much rain does Bratsk get?

Bratsk gets 372 mm of precipitation in an average year, spread over about 162 days with measurable rain. That is more rainy days than 74% of Russia.

August is the wettest month, with 61 mm. March is the driest, with 12 mm. December has the most rainy days, about 20.

The longest dry spell in the last five years lasted 21 days, to February 9, 2024.

Bratsk weather by month

Bratsk weather in January

In January, Bratsk averages a high of -16°C and a low of -23°C. It gets 16 mm of precipitation over about 18 rainy days. The sun is out about 19% of daylight hours. The January record high is 4°C (1979) and the record low is -46°C (2001).

Bratsk weather in February

In February, Bratsk averages a high of -11°C and a low of -21°C. It gets 12 mm of precipitation over about 14 rainy days. The sun is out about 27% of daylight hours. The February record high is 7°C (1987) and the record low is -43°C (2001).

Bratsk weather in March

In March, Bratsk averages a high of -2°C and a low of -13°C. It gets 12 mm of precipitation over about 10 rainy days. The sun is out about 25% of daylight hours. The March record high is 14°C (2025) and the record low is -41°C (1971).

Bratsk weather in April

In April, Bratsk averages a high of 6°C and a low of -4°C. It gets 16 mm of precipitation over about 10 rainy days. The sun is out about 36% of daylight hours. The April record high is 23°C (2022) and the record low is -28°C (1984).

Bratsk weather in May

In May, Bratsk averages a high of 14°C and a low of 3°C. It gets 34 mm of precipitation over about 12 rainy days. The sun is out about 38% of daylight hours. The May record high is 31°C (2017) and the record low is -10°C (2001).

Bratsk weather in June

In June, Bratsk averages a high of 22°C and a low of 10°C. It gets 51 mm of precipitation over about 11 rainy days. The sun is out about 40% of daylight hours. The June record high is 33°C (1979) and the record low is -3°C (1992). June is one of the most comfortable months to visit.

Bratsk weather in July

In July, Bratsk averages a high of 24°C and a low of 13°C. It gets 60 mm of precipitation over about 11 rainy days. The sun is out about 38% of daylight hours. The July record high is 34°C (1993) and the record low is 2°C (1978). July is one of the most comfortable months to visit.

Bratsk weather in August

In August, Bratsk averages a high of 21°C and a low of 11°C. It gets 61 mm of precipitation over about 12 rainy days. The sun is out about 39% of daylight hours. The August record high is 32°C (2000) and the record low is -2°C (1981).

Bratsk weather in September

In September, Bratsk averages a high of 13°C and a low of 4°C. It gets 39 mm of precipitation over about 13 rainy days. The sun is out about 31% of daylight hours. The September record high is 26°C (2007) and the record low is -7°C (1977).

Bratsk weather in October

In October, Bratsk averages a high of 4°C and a low of -2°C. It gets 24 mm of precipitation over about 14 rainy days. The sun is out about 26% of daylight hours. The October record high is 22°C (1986) and the record low is -24°C (1974).

Bratsk weather in November

In November, Bratsk averages a high of -6°C and a low of -12°C. It gets 26 mm of precipitation over about 19 rainy days. The sun is out about 19% of daylight hours. The November record high is 12°C (1978) and the record low is -36°C (1997).

Bratsk weather in December

In December, Bratsk averages a high of -13°C and a low of -20°C. It gets 22 mm of precipitation over about 20 rainy days. The sun is out about 13% of daylight hours. The December record high is 5°C (2013) and the record low is -43°C (1976).

Sunshine, humidity and wind in Bratsk

June is the sunniest month in Bratsk, with sunshine about 40% of daylight hours. December is the cloudiest, at 13%. Over the year the sun shines about 29% of daylight hours. Bratsk is cloudier than 67% of Russia.

Humidity peaks in November at 77% and is lowest in May at 53%.

Bratsk has about 2 days a year above 32°C. Bratsk is cooler than 94% of Russia.

First and last freeze in Bratsk

The first fall freeze in Bratsk typically comes around September 19, and the last spring freeze around May 21. That leaves a frost-free growing season of about 121 days.

Bratsk weather records

The hottest temperature on record at the Bratsk station is 34°C, on July 31, 1993. The coldest is -46°C, on January 7, 2001.

The wettest day on record brought 65 mm of rain, on September 2, 1987.

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

The annual mean temperature has changed by +0.4°C per decade since 1971.

The best time to visit Bratsk

The most comfortable time to visit is typically June to July, when daytime highs sit near 23°C.

Winter (December–February) is cold, with average highs around -13°C and lows near -21°C.

Spring (March–May) is chilly, with average highs around 6°C and lows near -5°C.

Summer (June–August) is warm, with average highs around 22°C and lows near 12°C. It can feel humid.

Autumn (September–November) is cold, with average highs around 4°C and lows near -3°C.

Bratsk climate questions

How much rain does Bratsk get?

Bratsk gets 372 mm of precipitation in an average year, over about 162 rainy days.

What is the wettest month in Bratsk?

August is the wettest month in Bratsk, with 61 mm. March is the driest, with 12 mm.

How many rainy days does Bratsk have a year?

Bratsk has about 162 days with measurable rain in an average year. December has the most, about 20.

What is the hottest month in Bratsk?

July is the warmest month in Bratsk, with an average high of 24°C.

What is the coldest month in Bratsk?

January is the coldest month in Bratsk, with an average low of -23°C.

What is the record high temperature in Bratsk?

The record high at the Bratsk station is 34°C, set on July 31, 1993. The record low is -46°C, on January 7, 2001.

What is the sunniest month in Bratsk?

June is the sunniest month in Bratsk, with sunshine about 40% of daylight hours. December is the cloudiest.

When is the first frost in Bratsk?

The first fall freeze in Bratsk typically comes around September 19. The last spring freeze is around May 21.

What is the best time to visit Bratsk?

The most comfortable time to visit is typically June to July, when daytime highs sit near 23°C.