Climate Insights for Lensk

The climate in Lensk is cold. The average annual temperature is -4°C and approximately 485mm of precipitation falls per year. July is the wettest month, receiving around 80mm of rainfall. Lensk is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: June, July, August. The coldest months are December, January, February, when temperatures can drop to -31°C. Lensk experiences heavy snowfall, typically from January through December.

Lensk has a wide annual temperature range, spanning 54°C from the coldest to warmest months. June is the warmest month, though highs remain moderate at 23°C with a mean of 17°C. December brings the harshest conditions, with lows dropping to -31°C and an average temperature of -27°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 15°C shift in average temperatures.

Lensk is a relatively dry area, receiving approximately 485mm of precipitation annually, which averages out to around 40mm per month. The wettest month is July, averaging 80mm of rainfall. May and August also tend to see above-average precipitation. The driest month is April, with just 25mm. That's 55mm less than July, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Lensk receives heavy snowfall, accumulating around 214cm annually from January through December. The snowiest month is January, with approximately 35cm. Winter travel should account for significant snow cover.

Lensk is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.

It is currently summer in Lensk, which began on June 21, 2026. Lensk 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 June at around 23°C, while the coldest stretch bottoms out in December near -31°C. Autumn is next, beginning on September 23, 2026 — 88 days from now.

The best time to visit Lensk is during June and July, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 64mm per month. By contrast, December can be quite cold with temperatures dropping to -31°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 Lensk 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.