Climate Insights for Xiamen

The climate in Xiamen is warm and mild. The average annual temperature is 22°C and approximately 1476mm of precipitation falls per year. June is the wettest month, receiving around 249mm of rainfall. Xiamen is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, September. The coldest months are January, February, December, when temperatures can drop to 11°C.

Temperatures in Xiamen 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. January 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 6°C between highs and lows. The sharpest temperature change occurs between November and December, with a 5°C shift in average temperatures.

Xiamen is a fairly wet location, receiving approximately 1476mm of precipitation annually, which averages out to around 123mm per month. The wettest month is June, averaging 249mm of rainfall. August and July also tend to see above-average precipitation. The driest month is December, with just 29mm. That's 220mm less than June, 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.

Xiamen 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 October, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 13km/h in winter, 10km/h in spring, 9km/h in summer, 13km/h in autumn.

It is currently summer in Xiamen, which began on June 21, 2026. Xiamen 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 January near 11°C. Autumn is next, beginning on September 23, 2026 (3 days from now).

The best time to visit Xiamen is during October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 40mm per month. By contrast, July can be uncomfortably hot with highs reaching 32°C, while January is the coldest period with lows dropping to 11°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 Xiamen 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.