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Bratsk, Russia climate
Dfc Subarctic
Bratsk has a strongly seasonal subarctic climate (Subarctic, Köppen Dfc). The hottest month is July with an average daily high near 24°C, while the coldest is January averaging around −23°C at night. Precipitation totals about 374 mm a year and is strongly seasonal — August alone averages 61 mm while March barely receives 12 mm. At latitude 56°N, day length swings from 6.6 hours in midwinter to 17.4 hours at midsummer.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsBratsk climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −16 | −11 | −2 | 6 | 14 | 21 | 24 | 21 | 13 | 5 | −6 | −13 |
| Avg temp (°C) | −19 | −16 | −8 | 1 | 8 | 16 | 19 | 16 | 9 | 1 | −9 | −17 |
| Avg low (°C) | −23 | −21 | −13 | −4 | 3 | 10 | 14 | 11 | 5 | −2 | −12 | −20 |
| Precipitation (mm) | 16 | 13 | 12 | 16 | 34 | 50 | 60 | 61 | 38 | 24 | 26 | 22 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −16 | −11 | −2 | 6 | 14 | 21 |
| Avg temp (°C) | −19 | −16 | −8 | 1 | 8 | 16 |
| Avg low (°C) | −23 | −21 | −13 | −4 | 3 | 10 |
| Precipitation (mm) | 16 | 13 | 12 | 16 | 34 | 50 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 21 | 13 | 5 | −6 | −13 |
| Avg temp (°C) | 19 | 16 | 9 | 1 | −9 | −17 |
| Avg low (°C) | 14 | 11 | 5 | −2 | −12 | −20 |
| Precipitation (mm) | 60 | 61 | 38 | 24 | 26 | 22 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 18 | 14 | 10 | 10 | 11 | 11 | 11 | 12 | 13 | 14 | 19 | 20 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | 0.1 | 0.4 | — | — | — | — | — |
| Days with low ≤ 0°C (days) | 31 | 28 | 30 | 23 | 8 | 0.1 | — | 0.0 | 4 | 20 | 27 | 29 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 18 | 14 | 10 | 10 | 11 | 11 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | 0.1 |
| Days with low ≤ 0°C (days) | 31 | 28 | 30 | 23 | 8 | 0.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 11 | 12 | 13 | 14 | 19 | 20 |
| Days with high ≥ 32°C (days) | 0.4 | — | — | — | — | — |
| Days with low ≤ 0°C (days) | — | 0.0 | 4 | 20 | 27 | 29 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 59 | 59 | 63 | 66 | 71 | 66 | 64 | 63 | 72 | 79 | 74 | 65 |
| Clear days (≤ 30% cloud) | 6 | 6 | 5 | 4 | 3 | 3 | 4 | 5 | 4 | 2 | 0.9 | 4 |
| Partly cloudy days (30–70%) | 12 | 10 | 11 | 11 | 10 | 11 | 12 | 11 | 7 | 5 | 10 | 11 |
| Cloudy days (≥ 70%) | 13 | 12 | 15 | 16 | 19 | 15 | 15 | 15 | 19 | 24 | 19 | 16 |
| Relative humidity (%) | 99 | 99 | 98 | 85 | 72 | 70 | 70 | 71 | 78 | 84 | 95 | 99 |
| Wind speed (mph) | 2.0 | 2.0 | 2.3 | 2.6 | 2.0 | 1.3 | 1.2 | 1.3 | 1.4 | 1.5 | 1.8 | 2.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 59 | 59 | 63 | 66 | 71 | 66 |
| Clear days (≤ 30% cloud) | 6 | 6 | 5 | 4 | 3 | 3 |
| Partly cloudy days (30–70%) | 12 | 10 | 11 | 11 | 10 | 11 |
| Cloudy days (≥ 70%) | 13 | 12 | 15 | 16 | 19 | 15 |
| Relative humidity (%) | 99 | 99 | 98 | 85 | 72 | 70 |
| Wind speed (mph) | 2.0 | 2.0 | 2.3 | 2.6 | 2.0 | 1.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 63 | 72 | 79 | 74 | 65 |
| Clear days (≤ 30% cloud) | 4 | 5 | 4 | 2 | 0.9 | 4 |
| Partly cloudy days (30–70%) | 12 | 11 | 7 | 5 | 10 | 11 |
| Cloudy days (≥ 70%) | 15 | 15 | 19 | 24 | 19 | 16 |
| Relative humidity (%) | 70 | 71 | 78 | 84 | 95 | 99 |
| Wind speed (mph) | 1.2 | 1.3 | 1.4 | 1.5 | 1.8 | 2.0 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 28 years of daily observations at Bratsk, a weather station, about 18 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.