Haikou weather in April
Temperature, sea and sunshine in April: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in April
Good
Best time to visit: October – April
What is the weather like in Haikou in April?
In April, Haikou is hot: daytime highs average 28 °C, and even at night it stays warm at around 23 °C. The sea averages 23.1 °C – pleasant for swimming. Expect around 5 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 71 mm in total. On about 9 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, April is a good month for a holiday in Haikou.
April compared
How the weather changes from March to May. Tap a month to open it.
More details for April
- Daylight
- 12 h 35 min06:21 – 18:56
- UV index
- 12 · extremeclear sky, noon (estimate)All months
- Muggy days
- 28 daysdew point 18 °C or moreAll months
- Wind
- 22 km/haverage daily peakAll months
- Cloud cover
- 54 %on averageAll months
- Hot days
- 9 days30 °C or moreAll months
- Time zone
- UTC+8Asia/Shanghai
How the score comes together
- Temperatureweight 50 %86 %
- Sunshineweight 20 %38 %
- Few rainy daysweight 30 %47 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in April
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Haikou in April: quick answers
Is Haikou hot in April?
Yes. In April, Haikou is hot: daytime highs average 28 °C and nights stay around 23 °C. On about 9 days the thermometer climbs to 30 °C or more.
Can you swim in Haikou in April?
Yes. In April the sea averages 23.1 °C – pleasant for swimming.
Does it rain much in Haikou in April?
Rain is frequent, with about 11 rainy days and 71 mm in total.
Haikou month by month
The whole year in HaikouAll destinations: ChinaWhere to go in AprilSea temperature in April
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences