Wuzhishan climate

Hainan, China · 18.78°N, 109.50°E · elevation 305 m · population 112,269

Warmest month
May
high 32 °C90 °F
Coldest month
January
low 12 °C54 °F
Wettest month
October
400 mm16 in
Best time to visit
December–February
by our comfort score
Annual precipitation
2,012 mm79 in
February driest
Year average
24 °C75 °F
monsoon-influenced humid subtropical (Cwa)

Wuzhishan (Hainan, China) has a monsoon-influenced humid subtropical climate (Köppen Cwa). The average temperature over the year is 24 °C75 °F, and about 2,012 mm79 in of precipitation falls in an average year.

Temperature by month

Average highAverage low
10°15°20°25°30°35°50°60°70°80°90°JFMAMJJASOND33°91°12°54°January: high 24 °C / 74 °F, low 12 °C / 54 °FFebruary: high 27 °C / 81 °F, low 14 °C / 57 °FMarch: high 31 °C / 87 °F, low 17 °C / 62 °FApril: high 33 °C / 91 °F, low 20 °C / 68 °FMay: high 32 °C / 90 °F, low 23 °C / 73 °FJune: high 31 °C / 87 °F, low 24 °C / 74 °FJuly: high 30 °C / 86 °F, low 23 °C / 74 °FAugust: high 30 °C / 86 °F, low 23 °C / 74 °FSeptember: high 30 °C / 85 °F, low 22 °C / 72 °FOctober: high 28 °C / 82 °F, low 20 °C / 67 °FNovember: high 26 °C / 79 °F, low 17 °C / 62 °FDecember: high 23 °C / 74 °F, low 13 °C / 56 °F

Precipitation by month

Precipitation per month (mminches)
01002003004005000481216JJanuary: 24 mm / 0.9 inFFebruary: 19 mm / 0.7 inMMarch: 43 mm / 1.7 inAApril: 88 mm / 3.5 inMMay: 170 mm / 6.7 inJJune: 195 mm / 7.7 inJJuly: 262 mm / 10.3 inAAugust: 325 mm / 12.8 inSSeptember: 331 mm / 13.0 inOOctober: 400 mm / 15.8 inNNovember: 108 mm / 4.3 inDDecember: 47 mm / 1.9 in40015.8

Wuzhishan climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mmin
Jan247412541864240.9
Feb278114572069190.7
Mar318717622475431.7
Apr339120682680883.5
May3290237327811706.7
Jun3187247427811957.7
Jul30862374278026210
Aug30862374268032513
Sep30852272267833113
Oct28822067247540016
Nov2679176221701084.3
Dec237413561865471.9
Year3391125424752,01279

“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan83%63%3.611:07
Feb78%59%4.211:30
Mar74%59%4.611:59
Apr73%59%5.412:33
May79%67%5.813:01
Jun85%79%5.313:15
Jul87%75%5.313:09
Aug89%77%5.012:46
Sep88%75%4.712:13
Oct88%63%4.411:41
Nov87%60%3.911:13
Dec85%63%3.411:00

Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.

What the climate of Wuzhishan is like

The warmest month is May, with an average high of 32 °C90 °F and a low of 23 °C73 °F. The coldest is January, when highs average 24 °C74 °F and lows 12 °C54 °F. There is a clear seasonal cycle, with 9.4 °C16.9 °F between the average temperature of the warmest and the coolest month.

It is very wet, receiving about 2,012 mm79 in of precipitation per year. The wettest three-month stretch is August–October, which brings 52% of the annual total. Months with less than 20 mm0.8 in on average: February. The wettest month is October (400 mm16 in), the driest is February (19 mm0.7 in).

Relative humidity ranges from 73% in April to 89% in August. The clearest skies (lowest average cloud amount, 59%) are typical of February. Average wind speed near the ground ranges from 1 km/h (0 mph) in August to 1 km/h (1 mph) in February. Daylight lasts from about 11.0 hours in December to 13.3 hours in June.

Best time to visit Wuzhishan

Based on these averages, the most comfortable months for sightseeing and outdoor activities are December–February: average highs of 23 °C74 °F to 27 °C81 °F with 19 mm0.7 in to 47 mm1.9 in of precipitation per month.

The most challenging month is October, which is very wet (400 mm16 in) and humid (88% relative humidity).

Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.

What to pack for Wuzhishan

  • Wetter months (May–October) — highs 2882 to 32 °C90 °F, lows 2067 to 24 °C74 °F, about 281 mm11 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
  • Drier months (November–April) — highs 2374 to 33 °C91 °F, lows 1254 to 20 °C68 °F, about 55 mm2.2 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.

How Wuzhishan compares

Compared with Sanya, about 59 km to the south, Wuzhishan is on average 2.1 °C3.7 °F cooler and receives a similar amount of precipitation. The difference is largest in December (3.2 °C5.7 °F cooler).

Of the 547 places in China covered by World Climates, Wuzhishan is the 12th warmest by annual mean temperature and the 4th wettest by annual precipitation. See all of them on the China climate page.

Places in other countries with the most similar temperature and rainfall pattern: Nghi Sơn (Vietnam, Cwa), Thanh Hóa (Vietnam, Cwa) and Poza Rica de Hidalgo (Mexico, Aw).

Nearby places

  • Sanya 59 km · 26 °C78 °F · 1,931 mm76 in
  • Nada 83 km · 24 °C76 °F · 1,915 mm75 in
  • Wanning 93 km · 25 °C78 °F · 1,843 mm73 in
  • Basuo 95 km · 26 °C78 °F · 1,729 mm68 in
  • Qionghai 113 km · 25 °C77 °F · 1,843 mm73 in
  • Xiuying 159 km · 25 °C77 °F · 1,781 mm70 in
  • Wenchang 161 km · 25 °C77 °F · 1,910 mm75 in
  • Haikou 165 km · 25 °C77 °F · 1,842 mm73 in

All places in China

Frequently asked questions

What is the warmest month in Wuzhishan?

May is the warmest month in Wuzhishan, with an average high of 32 °C (90 °F) and an average low of 23 °C (73 °F).

What is the coldest month in Wuzhishan?

January is the coldest month, with an average high of 24 °C (74 °F) and an average low of 12 °C (54 °F).

When does it rain the most in Wuzhishan?

October is the wettest month with about 400 mm (15.8 in) of precipitation; February is the driest with about 19 mm (0.7 in).

What is the best time to visit Wuzhishan?

Judging by long-term averages, the most comfortable months are December–February.

About this data

All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.

The grid cell’s average elevation is 440 m, while Wuzhishan lies at about 305 m. Temperatures on this page were therefore adjusted by +0.9 °C1.6 °F using the standard lapse rate of 6.5 °C per 1,000 m.

Sources and method