Mild
Average highs are around 21°C, so days are mild rather than hot.
January verdict
Haikou, Hainan, China in January
Weather score49Mixed
Mixed for holiday weather
Average highs are around 21°C, so days are mild rather than hot. Sunshine averages 4h per day, so this is not one of the brighter months. Rainfall averages 23mm, which is relatively low for holiday planning.
January weather
Monthly averages
Temp
21°C
Rain
23mm
Sun
4h
Sea
20°C
Weather score
49
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 23mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 4h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 20°C, so the water can feel cool.
Map
Weather map
Compare Haikou, Hainan, China with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
January21°C average high
January is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
January23mm average rain
January is one of Haikou's driest months, making outdoor days easier to plan than in wetter parts of the year.
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
January4 hours average sun
January is one of Haikou's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
January20°C average sea
January is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaMay to October
Sea temperatures are usually near 26°C in this stretch, so swimming comfort is at its strongest.
Weather score
January49 weather score
January is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsMarch to April and October to November
These months have the strongest weather score in the monthly averages.
