Climate Insights for Wenchang

The climate in Wenchang is hot. The average annual temperature is 25°C and approximately 1719mm of precipitation falls per year. August is the wettest month, receiving around 358mm of rainfall. Wenchang is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: June, July, May. The coldest months are February, January, December, when temperatures can drop to 18°C.

Wenchang sees moderate temperature variation throughout the year, ranging from 18°C to 33°C. The warmest month is June, when average highs reach 33°C and the mean temperature sits around 30°C. February is the coolest month, with minimum temperatures around 18°C and an average of 20°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between February and March, with a 3°C shift in average temperatures.

Wenchang is a fairly wet location, receiving approximately 1719mm of precipitation annually, which averages out to around 143mm per month. The wettest month is August, averaging 358mm of rainfall. July and September also tend to see above-average precipitation. The driest month is December, with just 21mm. That's 336mm 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.

Wenchang 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 December, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.

It is currently summer in Wenchang, which began on June 21, 2026. Wenchang 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 June at around 33°C, while the coldest stretch bottoms out in February near 18°C. Autumn is next, beginning on September 23, 2026 — 92 days from now.

The best time to visit Wenchang is during January, February, March, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 51mm per month. By contrast, June can be uncomfortably hot with temperatures reaching 33°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Wenchang 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.