Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
May verdict
Good for holiday weather
Average highs sit around 27°C, giving warm days by monthly-average standards. Sunshine averages 4.7h per day, so this is not one of the brighter months. Rainfall averages 165mm, so some wet days are possible.

Monthly averages
Temp
27°C
Rain
165mm
Sun
4.7h
Sea
23°C
Weather score
59
Good
Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
Showers
Rainfall averages 165mm, so some wet days are possible.
Limited sun
Sunshine averages 4.7h per day, so this is not one of the brighter months.
Swimmable
Sea temperatures average 23°C, which can work for swimming but may feel fresh.
Map
Compare Xiamen, Fujian, China with nearby places by weather score, rain, sun, temperature, and swim conditions.
May27°C average high
May is close to Xiamen's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
May165mm average rain
May is wetter than Xiamen's yearly average, so flexible plans matter more.
Driest monthsJanuary to February and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May4.7 hours average sun
May is below Xiamen's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsJuly to August
This stretch has the strongest sunshine in the monthly averages.
May23°C average sea
May is close to Xiamen's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJune to October
Sea temperatures are usually near 26°C in this stretch, so swimming comfort is at its strongest.
May59 weather score
May sits close to Xiamen's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsSeptember to October
These months have the strongest weather score in the monthly averages.