Climate Insights for Kostanay

The climate in Kostanay is cool. The average annual temperature is 4°C and approximately 446mm of precipitation falls per year. August is the wettest month, receiving around 57mm of rainfall. Kostanay is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, December, February, when temperatures can drop to -18°C. Snowfall occurs from January to December, with around 138cm accumulating over the season.

Kostanay has a wide annual temperature range, spanning 45°C from the coldest to warmest months. The warmest month is July, when average highs reach 27°C and the mean temperature sits around 21°C. January brings the harshest conditions, with lows dropping to -18°C and an average temperature of -15°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between March and April, with a 11°C shift in average temperatures.

Kostanay is a relatively dry area, receiving approximately 446mm of precipitation annually, which averages out to around 37mm per month. The wettest month is August, averaging 57mm of rainfall. July and June also tend to see above-average precipitation. The driest month is January, with just 23mm. That's 34mm 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 138cm accumulating over the season. February typically sees the most snow at around 26cm.

Kostanay is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

It is currently summer in Kostanay, which began on June 21, 2026. Kostanay 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 27°C, while the coldest stretch bottoms out in January near -18°C. Autumn is next, beginning on September 23, 2026 — 90 days from now.

The best time to visit Kostanay is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 51mm per month. By contrast, January can be quite cold with temperatures dropping to -18°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 Kostanay 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.