Climate Overview
The climate in Guanshan is temperate. The average annual temperature is 18°C and approximately 3120mm of precipitation falls per year. Guanshan receives a notable amount of rainfall throughout the year, including during its driest month. Guanshan is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are January, February, December, when temperatures can drop to 10°C.
Temperature
Guanshan sees moderate temperature variation throughout the year, ranging from 10°C to 26°C. The warmest month is July, when average highs reach 26°C and the mean temperature sits around 22°C. January is the coolest month, with minimum temperatures around 10°C and an average of 12°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between November and December, with a 3°C shift in average temperatures.
Precipitation
Guanshan is a very wet location, receiving approximately 3120mm of precipitation annually, which averages out to around 260mm per month. The wettest month is August, averaging 484mm of rainfall. September and May also tend to see above-average precipitation. The driest month is December, with just 109mm. That's 375mm 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.
Wind
Guanshan is relatively calm, with an average annual wind speed of 1km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.
Seasons
3 days until Summer
It is currently spring in Guanshan, which began on March 20, 2026. Guanshan 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 26°C, while the coldest stretch bottoms out in January near 10°C. Summer is next, beginning on June 21, 2026 — 3 days from now.
Spring
Temperatures range from 12 to 23°C. Rainfall is heavy, totalling around 826mm across the season with a monthly average of 275mm. Winds are generally light, averaging 1km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 19 to 26°C. Rainfall is heavy, totalling around 1075mm across the season with a monthly average of 358mm. Winds are generally light, averaging 1km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 14 to 25°C. Rainfall is heavy, totalling around 765mm across the season with a monthly average of 255mm. Winds are generally light, averaging 1km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 10 to 17°C. Rainfall is heavy, totalling around 454mm across the season with a monthly average of 151mm. Winds are generally light, averaging 1km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Guanshan 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. 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.
