Climate Overview
The climate in Mianyang is temperate. The average annual temperature is 13°C and approximately 1345mm of precipitation falls per year. July is the wettest month, receiving around 224mm of rainfall. Mianyang 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 -2°C. Light snow can occur between January and December.
Temperature
Temperatures in Mianyang vary considerably across the year, with a 29°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 27°C and the mean temperature sits around 23°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
Mianyang is a fairly wet location, receiving approximately 1345mm of precipitation annually, which averages out to around 112mm per month. The wettest month is July, averaging 224mm of rainfall. September and August also tend to see above-average precipitation. The driest month is December, with just 23mm. That's 201mm 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 45cm annually. January is the snowiest month with approximately 14cm.
Wind
Mianyang 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 April, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 4km/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.
Seasons
9 days until Autumn
It is currently summer in Mianyang, which began on June 21, 2026. Mianyang 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 -2°C. Autumn is next, beginning on September 23, 2026 (9 days from now).
Spring
Temperatures range from 5 to 22°C. Precipitation is moderate at around 253mm for the season, averaging 84mm per month. Winds are generally light, averaging 5km/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 560mm across the season with a monthly average of 187mm. Winds are generally light, averaging 4km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 4 to 21°C. Rainfall is heavy, totalling around 453mm across the season with a monthly average of 151mm. Expect around 8cm of snow accumulation during this period. Winds are generally light, averaging 4km/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 80mm over the season and a monthly average of 27mm. Expect around 35cm of snow accumulation during this period. Winds are generally light, averaging 4km/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 Mianyang 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.
