Climate Overview
The climate in Heihe is cold. The average annual temperature is 2°C and approximately 593mm of precipitation falls per year. August is the wettest month, receiving around 138mm of rainfall. Heihe 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 -26°C. Snowfall occurs from January to December, with around 68cm accumulating over the season.
Temperature
Heihe has a wide annual temperature range, spanning 54°C from the coldest to warmest months. The warmest month is July, when average highs reach 28°C and the mean temperature sits around 23°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 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 13°C shift in average temperatures.
Precipitation
Heihe is a relatively dry area, receiving approximately 593mm of precipitation annually, which averages out to around 49mm per month. The wettest month is August, averaging 138mm of rainfall. July and June also tend to see above-average precipitation. The driest month is February, with just 3mm. That's 134mm less than August, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 68cm accumulating over the season. November typically sees the most snow at around 22cm.
Wind
Heihe 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 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 9km/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.
Seasons
8 days until Autumn
It is currently summer in Heihe, which began on June 21, 2026. Heihe 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 28°C, while the coldest stretch bottoms out in January near -26°C. Autumn is next, beginning on September 23, 2026 (8 days from now).
Spring
Temperatures range from -10 to 19°C. Rainfall is relatively light, with around 102mm over the season and a monthly average of 34mm. Winds are generally light, averaging 12km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.
Summer
Temperatures range from 14 to 28°C. Rainfall is heavy, totalling around 349mm across the season with a monthly average of 116mm. Winds are generally light, averaging 9km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from -14 to 19°C. Rainfall is relatively light, with around 127mm over the season and a monthly average of 42mm. Expect around 31cm of snow accumulation during this period. Winds are generally light, averaging 11km/h. Layered clothing works best as temperatures gradually cool. Enjoy the crisp air and changing scenery.
Winter
Temperatures range from -26 to -10°C. Precipitation is minimal, with only around 15mm for the entire season. Expect around 16cm of snow accumulation during this period. Winds are generally light, averaging 10km/h. Heavy layering and insulated outerwear are essential. Exposed skin should be minimised outdoors.
Monthly Climate Data
The table below shows monthly climate averages for Heihe 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.
