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Svetlana Ivanova CC BY-SA 4.0 Wikimedia Commons

Bratsk Reservoir

Monastery

A large reservoir on Siberia's Angara River, formed by the Bratsk Dam. The lake's forested shoreline attracts anglers and local holidaymakers; engineers and historians note the massive Soviet-era hydroelectric project that created it.

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Bratsk Reservoir essentials

Country: Russia
Driest months: Jan-Mar
Pay in: Ruble (р.)
Language: Russian
Emergency: 102

Bratsk Reservoir at a Glance

About Bratsk Reservoir

The Bratsk Reservoir is a large artificial lake on the Angara River in Irkutsk Oblast, Russia, created in the 1960s as part of a major hydroelectric project. It is one of the biggest reservoirs in Siberia and supports power generation and river transport.

The shoreline and the dam structure are the main features people visit for views and industrial heritage. The reservoir provides long, open-water vistas and is used locally for fishing and boat travel along channels that extend many kilometres.

The reservoir was formed when the Bratsk Dam was built in the 1960s to supply a large hydroelectric power station and improve navigation on the Angara. The impoundment led to the flooding of river valleys and the development of associated power and transport infrastructure.

It lies in central Irkutsk Oblast, east of the city of Bratsk and within Siberia’s riverine landscape. The nearest major city is Irkutsk, several hundred kilometres to the south-east, with the town of Bratsk adjacent to the dam site.

  • Viewing points: The reservoir edge and the nearby Bratsk hydroelectric dam are the main vantage points for views and photographs.
  • Purpose: Formed after the Bratsk Dam was completed in the 1960s, the impounded river serves hydroelectric generation and regional water transport.
When to Go

Best Time to Visit Bratsk Reservoir

Best in summer for boating and shoreline access; winter offers a very different, frozen landscape but requires extreme cold-weather preparation.

Summer (Jun-Aug)
Jun-Aug · 15-25°C
Warmer weather good for boating and shoreline exploration.
Winter (Dec-Feb)
Dec-Feb · -25--10°C
Frozen expanse and stark Siberian beauty, but extreme cold and limited access.

Weather & Climate near Bratsk Reservoir

Climate

Bratsk Reservoir's climate is classified as Subarctic - Subarctic climate with mild summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -25°C to 23°C. Semi-arid with limited rainfall.

Air Quality: AQI 55 Moderate
Best Time to Visit
JulyJuneAugust
Temperature & Rainfall
Temperature Range
36°
Warmest Month
-54°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -25° - -16° -26° 15 mm partly cloudy 99% 1.8 m/s 0.0 low 7.4h
February Poor -23° - -12° -23° 11 mm partly cloudy 98% 1.9 m/s 0.1 low 9.3h
March Poor -16° - -3° -14° 11 mm overcast 97% 2.4 m/s 0.3 low 11.7h
April Poor -5° - 5° -4° 19 mm overcast 79% 2.9 m/s 0.7 moderate 14.0h
May Acceptable 2° - 13° 5° 33 mm overcast 70% 2.8 m/s 1.0 high 16.2h
June Very Good 9° - 20° 14° 42 mm partly cloudy 68% 2.3 m/s 1.4 high 17.3h
July Very Good 13° - 23° 18° 58 mm partly cloudy 68% 2.0 m/s 1.3 high 16.8h
August Good 11° - 20° 15° 67 mm partly cloudy 70% 1.9 m/s 1.0 moderate 14.9h
September Acceptable 4° - 12° 7° 38 mm overcast 77% 2.1 m/s 0.5 low 12.6h
October Poor -3° - 3° -3° 24 mm overcast 83% 2.7 m/s 0.2 low 10.2h
November Poor -13° - -5° -14° 22 mm overcast 93% 2.8 m/s 0.0 low 8.0h
December Poor -20° - -13° -22° 20 mm partly cloudy 99% 2.2 m/s 0.0 low 6.7h
Getting There & Around

How to Get to Bratsk Reservoir

The reservoir is in Irkutsk Oblast. The city of Bratsk lies on its shores and is accessible by regional flights and rail from Irkutsk.

Tips for Visiting Bratsk Reservoir

  • If planning to travel on the reservoir (boating), check local authorities for permits and navigational hazards.
  • Visit viewpoints on the Angara River for dramatic perspectives; the reservoir has altered local shorelines and settlements.
  • Be aware that the reservoir's water levels are managed for hydroelectric power; conditions can change seasonally.