Mild
Average highs are around 26°C, so days are mild rather than hot.
December verdict
Sanya, Hainan, China in December
Weather score72Very good
Very good for holiday weather
Average highs are around 26°C, so days are mild rather than hot. Sunshine averages 5.5h per day, enough for a balanced month. Rainfall averages 26mm, which is relatively low for holiday planning.
December weather
Monthly averages
Temp
26°C
Rain
26mm
Sun
5.5h
Sea
25°C
Weather score
72
Very good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 26mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.5h per day, enough for a balanced month.
Swimmable
Sea temperatures average 25°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Sanya, Hainan, China with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December26°C average high
December is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsApril to September
This stretch sets the upper range for average daytime heat.
Rain
December26mm average rain
December is one of Sanya'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
December5.5 hours average sun
December is below Sanya's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsMay to July and September
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December25°C average sea
December is below Sanya's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaMay to October
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
December72 weather score
December scores above Sanya's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJanuary to April and November to December
These months have the strongest weather score in the monthly averages.
Hotels in Sanya, Hainan, China
Marriott
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The Ritz-Carlton, Sanya Yalong BaySanya, Hainan, China
The St. Regis Sanya Yalong Bay ResortSanya, Hainan, China
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JW Marriott Sanya Haitang Bay Resort & SpaSanya, Hainan, China
The Sanya EDITIONSanya, Hainan, China
Sanya Marriott Yalong Bay Resort & SpaSanya, Hainan, China