Climate Insights for Zheleznogorsk-Ilimskiy

The climate in Zheleznogorsk-Ilimskiy is cold. The average annual temperature is -1°C and approximately 493mm of precipitation falls per year. August is the wettest month, receiving around 58mm of rainfall. Zheleznogorsk-Ilimskiy is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are January, December, February, when temperatures can drop to -26°C. Snowfall occurs from January to December, with around 197cm accumulating over the season.

Zheleznogorsk-Ilimskiy has a wide annual temperature range, spanning 50°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 24°C with a mean of 19°C. January brings the harshest conditions, with lows dropping to -26°C and an average temperature of -22°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between February and March, with a 11°C shift in average temperatures.

Zheleznogorsk-Ilimskiy is a relatively dry area, receiving approximately 493mm of precipitation annually, which averages out to around 41mm per month. The wettest month is August, averaging 58mm of rainfall. September and July also tend to see above-average precipitation. The driest month is January, with just 21mm. That's 37mm less than August, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 197cm accumulating over the season. December typically sees the most snow at around 37cm.

Zheleznogorsk-Ilimskiy is relatively calm, with an average annual wind speed of 10km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months.

It is currently summer in Zheleznogorsk-Ilimskiy, which began on June 21, 2026. Zheleznogorsk-Ilimskiy is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 24°C, while the coldest stretch bottoms out in January near -26°C. Autumn is next, beginning on September 23, 2026 (11 days from now).

The best time to visit Zheleznogorsk-Ilimskiy is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 55mm per month. By contrast, January can be quite cold with temperatures dropping to -26°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Zheleznogorsk-Ilimskiy based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.