Krasnoyarsk sits on the Yenisei River in southern Siberia, in a valley between forested hills at approximately 56.01°N, 92.87°E. Its deep continental position gives it a humid continental climate (Köppen Dfb) — with warm summers and long, cold winters — though the river and the surrounding hills moderate it slightly compared with the open plain.

Summer, from June to August, is warm and short, with July the warmest month — average highs around 24–25°C — and hot spells that can exceed 33°C. It is by far the wettest season, when thunderstorms bring most of the year's rain, and the surrounding taiga and the great river are at their most inviting.

Winter, from November to March, is long and cold, with January the coldest month — average highs around -12°C and lows near -20°C, and cold snaps below -40°C. The Yenisei, kept ice-free below the dam upstream, releases fog into the frigid air, and the enclosed valley traps that fog along with severe industrial smog.

Krasnoyarsk receives around 450–500 mm of precipitation a year, with a clear summer maximum from thunderstorms and light, dry winter snow that lies for months across the taiga. Live rainfall, humidity, and pressure readings for the city are shown in the panels above.

Krasnoyarsk suffers a distinctive winter problem: the great Yenisei, kept from freezing by the warm water released from the hydroelectric dam upstream, steams into the bitterly cold air, and the resulting fog combines with industrial emissions trapped in the valley to produce the notorious 'black sky' smog alerts.

To follow any single measurement in Krasnoyarsk more closely, use our live instruments: the online barometer for atmospheric pressure, the thermometer for temperature, the hygrometer for humidity, the anemometer for wind speed, the wind vane for wind direction, and the rain gauge for rainfall.