Hot
Average highs reach 32°C, so days can feel very hot.
May verdict
Haikou, Hainan, China in May
Weather score56Good
Good for holiday weather
Average highs reach 32°C, so days can feel very hot. Sunshine averages 7h per day, enough for a balanced month. Rainfall averages 187mm, so showers are a real planning factor.
May weather
Monthly averages
Temp
32°C
Rain
187mm
Sun
7h
Sea
26°C
Weather score
56
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 187mm, so showers are a real planning factor.
Some sun
Sunshine averages 7h per day, enough for a balanced month.
Swimmable
Sea temperatures average 26°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Haikou, Hainan, China with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May32°C average high
May is one of Haikou's warmest months, with daytime heat above the yearly average.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
May187mm average rain
May sits near Haikou's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May7 hours average sun
May is brighter than Haikou's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
May26°C average sea
May sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaMay to October
Sea temperatures are usually near 26°C in this stretch, so swimming comfort is at its strongest.
Weather score
May56 weather score
May sits close to Haikou's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsMarch to April and October to November
These months have the strongest weather score in the monthly averages.
