Climate Overview
The climate in Sanjiaocheng is cold. The average annual temperature is 0°C and approximately 628mm of precipitation falls per year. August is the wettest month, receiving around 127mm of rainfall. Sanjiaocheng 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 -20°C. Snowfall occurs from January to December, with around 148cm accumulating over the season.
Temperature
Sanjiaocheng has a wide annual temperature range, spanning 37°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 17°C with a mean of 12°C. January brings the harshest conditions, with lows dropping to -20°C and an average temperature of -13°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 7°C shift in average temperatures.
Precipitation
Sanjiaocheng is a relatively dry area, receiving approximately 628mm of precipitation annually, which averages out to around 52mm per month. The wettest month is August, averaging 127mm of rainfall. June and July also tend to see above-average precipitation. The driest month is December, with just 4mm. That's 123mm 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 148cm accumulating over the season. April typically sees the most snow at around 34cm.
Wind
Sanjiaocheng is relatively calm, with an average annual wind speed of 8km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.
Seasons
3 days until Autumn
It is currently summer in Sanjiaocheng, which began on June 21, 2026. Sanjiaocheng 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 17°C, while the coldest stretch bottoms out in January near -20°C. Autumn is next, beginning on September 23, 2026 (3 days from now).
Spring
Temperatures range from -11 to 12°C. Rainfall is relatively light, with around 121mm over the season and a monthly average of 40mm. Winds are generally light, averaging 9km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.
Summer
Temperatures range from 4 to 17°C. Rainfall is heavy, totalling around 340mm across the season with a monthly average of 113mm. Winds are generally light, averaging 7km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -13 to 13°C. Precipitation is moderate at around 152mm for the season, averaging 51mm per month. Expect around 45cm of snow accumulation during this period. Winds are generally light, averaging 8km/h. Layered clothing works best as temperatures gradually cool. Enjoy the crisp air and changing scenery.
Winter
Temperatures range from -20 to -2°C. Precipitation is minimal, with only around 16mm for the entire season. Expect around 16cm of snow accumulation during this period. Winds are generally light, averaging 9km/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 Sanjiaocheng 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.