Climate Overview
The climate in Hanyuan is temperate. The average annual temperature is 12°C and approximately 1288mm of precipitation falls per year. July is the wettest month, receiving around 229mm of rainfall. Hanyuan is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, December, February, when temperatures can drop to -2°C. Light snow can occur between January and December.
Temperature
Temperatures in Hanyuan vary considerably across the year, with a 29°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 27°C and the mean temperature sits around 22°C. The coldest month is January, when overnight lows fall to -2°C and the daily average is 1°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between September and October, with a 6°C shift in average temperatures.
Precipitation
Hanyuan is a fairly wet location, receiving approximately 1288mm of precipitation annually, which averages out to around 107mm per month. The wettest month is July, averaging 229mm of rainfall. August and September also tend to see above-average precipitation. The driest month is December, with just 19mm. That's 210mm less than July, 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. Light snowfall can occur between January and December, totalling around 34cm annually. January is the snowiest month with approximately 9cm.
Wind
Hanyuan is relatively calm, with an average annual wind speed of 11km/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 August, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Hanyuan, which began on March 20, 2026. Hanyuan 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 August at around 27°C, while the coldest stretch bottoms out in January near -2°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 5 to 21°C. Precipitation is moderate at around 288mm for the season, averaging 96mm per month. Winds are generally light, averaging 12km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 17 to 27°C. Rainfall is heavy, totalling around 573mm across the season with a monthly average of 191mm. Winds are generally light, averaging 10km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 4 to 21°C. Rainfall is heavy, totalling around 361mm across the season with a monthly average of 120mm. Expect around 8cm of snow accumulation during this period. Winds are generally light, averaging 10km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -2 to 7°C. Rainfall is relatively light, with around 66mm over the season and a monthly average of 22mm. Expect around 24cm of snow accumulation during this period. Winds are generally light, averaging 11km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.
Monthly Climate Data
The table below shows monthly climate averages for Hanyuan 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.
