May weather forecast
Xiamen, China

May marks the beginning of summer in Xiamen, China. Accompanied by the increase in temperature, it also experiences a rise in humidity which attracts an abundance of monsoon clouds. The rain gauge records a further increase, this time reaching 162mm (6.38"), the third-highest for the year, making it one of the rainiest months in Xiamen. Notwithstanding the high rainfall, Xiamen remains a great destination for nature enthusiasts with long daylight hours providing ample time for outdoor activities. With the pleasant sea temperature adding to the charm, May in Xiamen can be incredibly refreshing.

Temperature

Xiamen's weather in May presents a minor rise in the average high-temperature, moving from a moderately hot 23.1°C (73.6°F) in April to a still warm 26.6°C (79.9°F). Throughout the month of May, Xiamen witnesses an average low-temperature of 19.9°C (67.8°F).

Humidity

In Xiamen, the average relative humidity in May is 84%.

Rainfall

In Xiamen, in May, during 15.2 rainfall days, 162mm (6.38") of precipitation is typically accumulated. Throughout the year, there are 121 rainfall days, and 1349mm (53.11") of precipitation is accumulated.

Sea temperature

In Xiamen, China, the average seawater temperature in May is 23.8°C (74.8°F).
Note: Every individual's cold threshold differs, but factors like today's sunshine, wind, and temperature can tip the scales for a delightful swim in 23.8°C (74.8°F) waters. For reference, Olympians swim in waters of 25°C (77°F) to 28°C (82.4°F).

Daylight

In May, the average length of the day is 13h and 20min.
On the first day of May in Xiamen, sunrise is at 05:32 and sunset at 18:37. On the last day of the month, sunrise is at 05:18 and sunset at 18:51 CST.

Sunshine

In Xiamen, the average sunshine in May is 4.3h.

UV index

May through August, with an average maximum UV index of 12, are months with the highest UV index. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 12 transforms into these recommendations:
Enforce all necessary safety measures, unprotected skin may suffer burns swiftly. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. For best protection against the Sun, use a sunscreen with no less than 30 SPF. This helps prevent sunburn and negative effects on the immune system. Warning! The reflection of sand and water increases the UV dose.