Xiuying climate

Hainan, China · 20.00°N, 110.29°E · elevation 16 m · population 290,000

Warmest month
June
high 31 °C88 °F
Coldest month
January
low 16 °C61 °F
Wettest month
August
324 mm13 in
Best time to visit
December–March
by our comfort score
Annual precipitation
1,781 mm70 in
February driest
Year average
25 °C77 °F
tropical savanna (dry winter) (Aw)

Xiuying (Hainan, China) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 25 °C77 °F, and about 1,781 mm70 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°JFMAMJJASOND31°88°16°61°January: high 21 °C / 70 °F, low 16 °C / 61 °FFebruary: high 23 °C / 74 °F, low 17 °C / 62 °FMarch: high 26 °C / 80 °F, low 19 °C / 67 °FApril: high 29 °C / 85 °F, low 22 °C / 72 °FMay: high 31 °C / 87 °F, low 25 °C / 77 °FJune: high 31 °C / 88 °F, low 27 °C / 80 °FJuly: high 31 °C / 87 °F, low 27 °C / 80 °FAugust: high 30 °C / 86 °F, low 27 °C / 80 °FSeptember: high 30 °C / 85 °F, low 26 °C / 79 °FOctober: high 28 °C / 82 °F, low 24 °C / 75 °FNovember: high 26 °C / 78 °F, low 21 °C / 70 °FDecember: high 22 °C / 72 °F, low 17 °C / 63 °F

Precipitation by month

Precipitation per month (mminches)
010020030040004812JJanuary: 30 mm / 1.2 inFFebruary: 23 mm / 0.9 inMMarch: 42 mm / 1.7 inAApril: 77 mm / 3.0 inMMay: 170 mm / 6.7 inJJune: 197 mm / 7.8 inJJuly: 253 mm / 10.0 inAAugust: 324 mm / 12.8 inSSeptember: 276 mm / 10.9 inOOctober: 269 mm / 10.6 inNNovember: 75 mm / 3.0 inDDecember: 44 mm / 1.7 in32412.8

Xiuying climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mmin
Jan217016611965301.2
Feb237417622068230.9
Mar268019672373421.7
Apr298522722679773.0
May3187257728821706.7
Jun3188278029841977.8
Jul31872780298425310.0
Aug30862780288332413
Sep30852679288227611
Oct28822475267926911
Nov267821702374753.0
Dec227217632068441.7
Year3188166125771,78170

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

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan82%70%2.811:03
Feb82%71%3.311:28
Mar80%68%3.911:59
Apr78%61%4.712:35
May81%64%5.513:04
Jun84%74%5.513:20
Jul84%68%5.613:14
Aug85%68%5.112:48
Sep85%64%4.712:14
Oct83%54%4.211:39
Nov82%59%3.511:10
Dec80%66%2.910:56

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 Xiuying is like

The warmest month is June, with an average high of 31 °C88 °F and a low of 27 °C80 °F. The coldest is January, when highs average 21 °C70 °F and lows 16 °C61 °F. There is a clear seasonal cycle, with 10.2 °C18.4 °F between the average temperature of the warmest and the coolest month.

It is wet, with about 1,781 mm70 in of precipitation per year. The wettest three-month stretch is August–October, which brings 49% of the annual total. The wettest month is August (324 mm13 in), the driest is February (23 mm0.9 in).

Relative humidity ranges from 78% in April to 85% in August. The clearest skies (lowest average cloud amount, 54%) are typical of October. Average wind speed near the ground ranges from 10 km/h (6 mph) in May to 16 km/h (10 mph) in December. Daylight lasts from about 10.9 hours in December to 13.3 hours in June.

Best time to visit Xiuying

Based on these averages, the most comfortable months for sightseeing and outdoor activities are December–March: average highs of 21 °C70 °F to 26 °C80 °F with 23 mm0.9 in to 44 mm1.7 in of precipitation per month.

The most challenging month is August, which is hot, with average highs of 30 °C86 °F, very wet (324 mm13 in) and humid (85% 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 Xiuying

  • Wetter months (May–October) — highs 2882 to 31 °C88 °F, lows 2475 to 27 °C80 °F, about 248 mm9.8 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and a good rain jacket or umbrella and quick-drying shoes.
  • Drier months (November–April) — highs 2170 to 29 °C85 °F, lows 1661 to 22 °C72 °F, about 49 mm1.9 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.

How Xiuying compares

Compared with Haikou, about 7 km to the northeast, Xiuying has practically the same average temperature and receives a similar amount of precipitation. The difference is largest in April (0.5 °C1 °F warmer).

Of the 547 places in China covered by World Climates, Xiuying is the 5th warmest by annual mean temperature and the 33rd 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: Thanh Hóa (Vietnam, Cwa), Nghi Sơn (Vietnam, Cwa) and Nam Định (Vietnam, Cwa).

Nearby places

  • Haikou 7 km · 25 °C77 °F · 1,842 mm73 in
  • Wenchang 73 km · 25 °C77 °F · 1,910 mm75 in
  • Qionghai 86 km · 25 °C77 °F · 1,843 mm73 in
  • Nada 92 km · 24 °C76 °F · 1,915 mm75 in
  • Wanning 134 km · 25 °C78 °F · 1,843 mm73 in
  • Zhanjiang 137 km · 24 °C75 °F · 1,855 mm73 in
  • Wuzhishan 159 km · 24 °C75 °F · 2,012 mm79 in
  • Lianjiang 183 km · 23 °C74 °F · 1,754 mm69 in

All places in China

Frequently asked questions

What is the warmest month in Xiuying?

June is the warmest month in Xiuying, with an average high of 31 °C (88 °F) and an average low of 27 °C (80 °F).

What is the coldest month in Xiuying?

January is the coldest month, with an average high of 21 °C (70 °F) and an average low of 16 °C (61 °F).

When does it rain the most in Xiuying?

August is the wettest month with about 324 mm (12.8 in) of precipitation; February is the driest with about 23 mm (0.9 in).

What is the best time to visit Xiuying?

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

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.

Sources and method