Warm
Average highs sit around 32°C, giving warm days by monthly-average standards.
Weather Guide
Sanya, Hainan, China Average Monthly Weather
Weather score65Good annual avg
Best months: March, November, December
Across the year, average daytime temperatures are around 29°C, sunshine averages 5.9h per day, and rainfall totals about 1454mm. Sea temperatures average 27°C across the year.
Annual weather
Annual averages
Temp
29°C
Rain
1454mm
Annual total
Sun
5.9h
Sea
27°C
Weather score
65
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 158mm, so some wet days are possible.
Some sun
Sunshine averages 6.9h per day, enough for a balanced month.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Sanya, Hainan, China with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July32°C average high
July is one of Sanya's warmest months, with daytime heat above the yearly average.
Warmest monthsApril to September
This stretch sets the upper range for average daytime heat.
Rain
July158mm average rain
July sits near Sanya'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
July6.9 hours average sun
July is one of Sanya's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsMay to July and September
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July29°C average sea
July is one of Sanya's warmest sea months, when swimming comfort is usually strongest.
Warmest seaMay to October
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
July62 weather score
July sits close to Sanya's yearly weather-score average, giving a typical overall read on the month.
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
View all
The Ritz-Carlton, Sanya Yalong BaySanya, Hainan, China
The St. Regis Sanya Yalong Bay ResortSanya, Hainan, China
JW Marriott Hotel Sanya Dadonghai BaySanya, Hainan, China
JW Marriott Sanya Haitang Bay Resort & SpaSanya, Hainan, China
The Sanya EDITIONSanya, Hainan, China
Sanya Marriott Yalong Bay Resort & SpaSanya, Hainan, China