Climate Insights for Dongguan

The climate in Dongguan is warm and mild. The average annual temperature is 23°C and approximately 2520mm of precipitation falls per year. August is the wettest month, receiving around 392mm of rainfall. Dongguan 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 February, January, December, when temperatures can drop to 11°C.

Temperatures in Dongguan vary considerably across the year, with a 21°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 32°C and the mean temperature sits around 29°C. February is the coolest month, with minimum temperatures around 11°C and an average of 14°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between March and April, with a 6°C shift in average temperatures.

Dongguan is a very wet location, receiving approximately 2520mm of precipitation annually, which averages out to around 210mm per month. The wettest month is August, averaging 392mm of rainfall. June and April also tend to see above-average precipitation. The driest month is December, with just 7mm. That's 385mm 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.

Dongguan is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.

It is currently summer in Dongguan, which began on June 21, 2026. Dongguan 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 32°C, while the coldest stretch bottoms out in February near 11°C. Autumn is next, beginning on September 23, 2026 — 52 days from now.

The best time to visit Dongguan is during December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 7mm per month. By contrast, July can be uncomfortably hot with highs reaching 32°C, while February is the coldest period with lows dropping to 11°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Dongguan 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.