Haikou weather in April
In April, Haikou has an average high of 28 °C83 °F and an average low of 23 °C73 °F, with about 88 mm3.5 in of precipitation. It is the 7th warmest month of the year and ranks 7th for precipitation.
How April compares with other months
Compared with March, April is 2.9 °C5.2 °F warmer on average and wetter by 41 mm1.6 in. Compared with May, April is 2.3 °C4.2 °F cooler on average and drier by 101 mm4.0 in. Daylight lasts about 12.6 hours around the middle of the month. Average relative humidity is 83% and the average cloud amount 61%.
Is April a good time to visit Haikou?
April is not among the most comfortable months by our comfort score: it is hot (average high 28 °C83 °F), it is fairly wet (88 mm3.5 in) and it is humid (83%). The most comfortable months in Haikou are December–March.
What to wear in April
For Haikou in April, pack light summer clothes such as T-shirts, shorts or light dresses.
April in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Haikou | 2883 | 2373 | 883.5 |
| Xiuying | 2985 | 2272 | 773.0 |
| Wenchang | 2984 | 2272 | 933.7 |
| Qionghai | 2882 | 2475 | 893.5 |
| Nada | 3391 | 2170 | 843.3 |
| Zhanjiang | 2679 | 2272 | 973.8 |
| Wanning | 2882 | 2475 | 893.5 |
| Wuzhishan | 3391 | 2068 | 883.5 |
| Lianjiang | 3086 | 2069 | 973.8 |
Nearby places that are more than 1 °C1.8 °F warmer in April: Nada and Wuzhishan; cooler: Zhanjiang.
Other months in Haikou
- January21 °C70 °F / 17 °C62 °F
- February23 °C73 °F / 17 °C63 °F
- March25 °C77 °F / 20 °C67 °F
- April28 °C83 °F / 23 °C73 °F
- May30 °C86 °F / 25 °C77 °F
- June30 °C87 °F / 27 °C80 °F
- July30 °C87 °F / 26 °C80 °F
- August30 °C86 °F / 26 °C80 °F
- September29 °C85 °F / 26 °C79 °F
- October28 °C82 °F / 24 °C76 °F
- November25 °C77 °F / 22 °C71 °F
- December22 °C71 °F / 18 °C65 °F
Frequently asked questions
How warm is Haikou in April?
In April the average high in Haikou is 28 °C (83 °F) and the average low is 23 °C (73 °F).
Does it rain a lot in Haikou in April?
On average about 88 mm (3.5 in) of precipitation falls in April; it ranks 7th of the 12 months.
Is April the warmest month in Haikou?
No. The warmest month in Haikou is June, with an average high of 30 °C (87 °F). The coldest month is January, with an average low of 17 °C (62 °F).
How long is the day in Haikou in April?
In the middle of April the day in Haikou lasts about 12.6 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Haikou in April?
The average relative humidity in April is about 83%. Combined with warm days, it can feel muggy.
How cloudy is Haikou in April?
On average about 61% of the sky is covered by cloud in April. This is the mean cloud amount from satellite data, not the number of sunny days.
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.