Hot
Average highs reach 33°C, so days can feel very hot.
Weather Guide
Haikou, Hainan, China Average Monthly Weather
Weather score57Good annual avg
Best months: November, October, April
Across the year, average daytime temperatures are around 28°C, sunshine averages 5.7h per day, and rainfall totals about 1697mm. Sea temperatures average 25°C across the year.
Annual weather
Annual averages
Temp
28°C
Rain
1697mm
Annual total
Sun
5.7h
Sea
25°C
Weather score
57
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 209mm, so showers are a real planning factor.
Bright
Sunshine averages 8h per day, so bright days are a strong part of the month.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Haikou, Hainan, China with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July33°C average high
July 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
July209mm average rain
July is wetter than Haikou's yearly average, so flexible plans matter more.
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
July8 hours average sun
July is one of Haikou's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July29°C average sea
July is one of Haikou's warmest sea months, when swimming comfort is usually strongest.
Warmest seaMay to October
Sea temperatures are usually near 26°C in this stretch, so swimming comfort is at its strongest.
Weather score
July57 weather score
July 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.
