Basuo climate

Hainan, China · 19.10°N, 108.67°E · elevation 17 m · population 444,458

Warmest month
June
high 31 °C88 °F
Coldest month
January
low 16 °C61 °F
Wettest month
August
354 mm14 in
Best time to visit
December–March
by our comfort score
Annual precipitation
1,729 mm68 in
February driest
Year average
26 °C78 °F
tropical savanna (dry winter) (Aw)

Basuo (Hainan, China) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 26 °C78 °F, and about 1,729 mm68 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°JFMAMJJASOND32°90°16°61°January: high 25 °C / 77 °F, low 16 °C / 61 °FFebruary: high 27 °C / 81 °F, low 17 °C / 63 °FMarch: high 30 °C / 85 °F, low 20 °C / 68 °FApril: high 32 °C / 89 °F, low 23 °C / 74 °FMay: high 32 °C / 90 °F, low 26 °C / 78 °FJune: high 31 °C / 88 °F, low 27 °C / 80 °FJuly: high 31 °C / 87 °F, low 26 °C / 80 °FAugust: high 30 °C / 87 °F, low 26 °C / 79 °FSeptember: high 30 °C / 87 °F, low 25 °C / 78 °FOctober: high 29 °C / 85 °F, low 23 °C / 74 °FNovember: high 27 °C / 81 °F, low 21 °C / 69 °FDecember: high 25 °C / 77 °F, low 17 °C / 63 °F

Precipitation by month

Precipitation per month (mminches)
010020030040004812JJanuary: 17 mm / 0.7 inFFebruary: 14 mm / 0.6 inMMarch: 33 mm / 1.3 inAApril: 61 mm / 2.4 inMMay: 129 mm / 5.1 inJJune: 178 mm / 7.0 inJJuly: 277 mm / 10.9 inAAugust: 354 mm / 13.9 inSSeptember: 285 mm / 11.2 inOOctober: 274 mm / 10.8 inNNovember: 73 mm / 2.9 inDDecember: 35 mm / 1.4 in35413.9

Basuo climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mmin
Jan257716612069170.7
Feb278117632272140.6
Mar308520682577331.3
Apr328923742781612.4
May3290267829841295.1
Jun3188278029841787.0
Jul31872680298427711
Aug30872679288335414
Sep30872578288228511
Oct29852374267927411
Nov278121692475732.9
Dec257717632170351.4
Year3290166126781,72968

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

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan78%69%3.111:06
Feb76%64%3.711:30
Mar75%67%4.111:59
Apr74%64%5.012:33
May79%69%5.813:02
Jun83%79%5.713:16
Jul85%78%5.613:10
Aug87%79%5.212:46
Sep85%74%4.812:13
Oct83%60%4.411:40
Nov82%61%3.711:12
Dec80%69%3.010:59

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 Basuo 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 25 °C77 °F and lows 16 °C61 °F. There is a clear seasonal cycle, with 8.6 °C15.4 °F between the average temperature of the warmest and the coolest month.

It is wet, with about 1,729 mm68 in of precipitation per year. The wettest three-month stretch is July–September, which brings 53% of the annual total. Months with less than 20 mm0.8 in on average: January and February. The wettest month is August (354 mm14 in), the driest is February (14 mm0.6 in).

Relative humidity ranges from 74% in April to 87% in August. The clearest skies (lowest average cloud amount, 60%) are typical of October. Average wind speed near the ground ranges from 6 km/h (4 mph) in September to 8 km/h (5 mph) in December. Daylight lasts from about 11.0 hours in December to 13.3 hours in June.

Best time to visit Basuo

Based on these averages, the most comfortable months for sightseeing and outdoor activities are December–March: average highs of 25 °C77 °F to 30 °C85 °F with 14 mm0.6 in to 35 mm1.4 in of precipitation per month.

The most challenging month is August, which is hot, with average highs of 30 °C87 °F, very wet (354 mm14 in) and humid (87% 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 Basuo

  • Wetter months (June–October) — highs 2985 to 31 °C88 °F, lows 2374 to 27 °C80 °F, about 273 mm11 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–May) — highs 2577 to 32 °C90 °F, lows 1661 to 26 °C78 °F, about 52 mm2.0 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.

How Basuo compares

Compared with Sanya, about 130 km to the southeast, Basuo has practically the same average temperature and receives 10% less precipitation (1,729 mm68 in vs 1,931 mm76 in).

Of the 547 places in China covered by World Climates, Basuo is the 2nd warmest by annual mean temperature and the 46th 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: Veracruz (Mexico, Aw), Ba Đồn (Vietnam, Aw) and Kỳ Anh (Vietnam, Aw).

Nearby places

  • Wuzhishan 95 km · 24 °C75 °F · 2,012 mm79 in
  • Nada 107 km · 24 °C76 °F · 1,915 mm75 in
  • Sanya 130 km · 26 °C78 °F · 1,931 mm76 in
  • Wanning 184 km · 25 °C78 °F · 1,843 mm73 in
  • Qionghai 190 km · 25 °C77 °F · 1,843 mm73 in
  • Xiuying 198 km · 25 °C77 °F · 1,781 mm70 in
  • Haikou 204 km · 25 °C77 °F · 1,842 mm73 in
  • Wenchang 230 km · 25 °C77 °F · 1,910 mm75 in

All places in China

Frequently asked questions

What is the warmest month in Basuo?

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

What is the coldest month in Basuo?

January is the coldest month, with an average high of 25 °C (77 °F) and an average low of 16 °C (61 °F).

When does it rain the most in Basuo?

August is the wettest month with about 354 mm (13.9 in) of precipitation; February is the driest with about 14 mm (0.6 in).

What is the best time to visit Basuo?

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.

The grid cell’s average elevation is 171 m, while Basuo lies at about 17 m. Temperatures on this page were therefore adjusted by +1 °C1.8 °F using the standard lapse rate of 6.5 °C per 1,000 m.

Sources and method