Wenchang climate
Wenchang (Hainan, China) has a tropical monsoon climate (Köppen Am). The average temperature over the year is 25 °C77 °F, and about 1,910 mm75 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Wenchang climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2272 | 1661 | 1967 | 351.4 |
| Feb | 2475 | 1763 | 2169 | 311.2 |
| Mar | 2679 | 2067 | 2373 | 552.2 |
| Apr | 2984 | 2272 | 2678 | 933.7 |
| May | 3187 | 2577 | 2882 | 1837.2 |
| Jun | 3187 | 2679 | 2883 | 1837.2 |
| Jul | 3187 | 2678 | 2883 | 2168.5 |
| Aug | 3187 | 2678 | 2883 | 30012 |
| Sep | 3086 | 2577 | 2882 | 30912 |
| Oct | 2882 | 2374 | 2678 | 34614 |
| Nov | 2679 | 2170 | 2374 | 1014.0 |
| Dec | 2373 | 1864 | 2069 | 602.3 |
| Year | 3187 | 1661 | 2577 | 1,91075 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 84% | 73% | 2.7 | 11:04 |
| Feb | 85% | 66% | 3.4 | 11:29 |
| Mar | 85% | 62% | 4.0 | 11:59 |
| Apr | 84% | 58% | 4.9 | 12:34 |
| May | 85% | 65% | 5.6 | 13:03 |
| Jun | 87% | 76% | 5.5 | 13:18 |
| Jul | 87% | 70% | 5.6 | 13:12 |
| Aug | 87% | 73% | 5.1 | 12:47 |
| Sep | 86% | 69% | 4.6 | 12:13 |
| Oct | 85% | 63% | 3.9 | 11:40 |
| Nov | 85% | 67% | 3.1 | 11:11 |
| Dec | 83% | 73% | 2.6 | 10:57 |
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 Wenchang is like
The warmest month is June, with an average high of 31 °C87 °F and a low of 26 °C79 °F. The coldest is January, when highs average 22 °C72 °F and lows 16 °C61 °F. There is a clear seasonal cycle, with 9.1 °C16.3 °F between the average temperature of the warmest and the coolest month.
It is wet, with about 1,910 mm75 in of precipitation per year. The wettest three-month stretch is August–October, which brings 50% of the annual total. The wettest month is October (346 mm14 in), the driest is February (31 mm1.2 in).
Relative humidity ranges from 83% in December to 87% in June. The clearest skies (lowest average cloud amount, 58%) are typical of April. Average wind speed near the ground ranges from 6 km/h (4 mph) in August to 10 km/h (6 mph) in December. Daylight lasts from about 11.0 hours in December to 13.3 hours in June.
Best time to visit Wenchang
Based on these averages, the most comfortable months for sightseeing and outdoor activities are December–March: average highs of 22 °C72 °F to 26 °C79 °F with 31 mm1.2 in to 60 mm2.3 in of precipitation per month.
The most challenging month is August, which is hot, with average highs of 31 °C87 °F, very wet (300 mm12 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 Wenchang
- Wetter months (May–October) — highs 2882 to 31 °C87 °F, lows 2374 to 26 °C79 °F, about 256 mm10 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 2272 to 29 °C84 °F, lows 1661 to 22 °C72 °F, about 62 mm2.5 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.
How Wenchang compares
Compared with Haikou, about 72 km to the northwest, Wenchang has practically the same average temperature and receives a similar amount of precipitation. The difference is largest in February (0.6 °C1.2 °F warmer).
Of the 547 places in China covered by World Climates, Wenchang is the 6th warmest by annual mean temperature and the 10th 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: Kỳ Anh (Vietnam, Aw), Ba Đồn (Vietnam, Aw) and Poza Rica de Hidalgo (Mexico, Aw).
Nearby places
- Qionghai 49 km · 25 °C77 °F · 1,843 mm73 in
- Haikou 72 km · 25 °C77 °F · 1,842 mm73 in
- Xiuying 73 km · 25 °C77 °F · 1,781 mm70 in
- Wanning 95 km · 25 °C78 °F · 1,843 mm73 in
- Nada 128 km · 24 °C76 °F · 1,915 mm75 in
- Wuzhishan 161 km · 24 °C75 °F · 2,012 mm79 in
- Zhanjiang 192 km · 24 °C75 °F · 1,855 mm73 in
- Sanya 198 km · 26 °C78 °F · 1,931 mm76 in
Frequently asked questions
What is the warmest month in Wenchang?
June is the warmest month in Wenchang, with an average high of 31 °C (87 °F) and an average low of 26 °C (79 °F).
What is the coldest month in Wenchang?
January is the coldest month, with an average high of 22 °C (72 °F) and an average low of 16 °C (61 °F).
When does it rain the most in Wenchang?
October is the wettest month with about 346 mm (13.6 in) of precipitation; February is the driest with about 31 mm (1.2 in).
What is the best time to visit Wenchang?
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.