Climate averages 1991–2020
Sanya weather
in April.
A hot, moderately wet month: the 6th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a hot month in Sanya: daytime highs average 29.2°C and nights cool to about 24.4°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 53 mm of rain on roughly 9 days, which makes April a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 33 min on an average April day.
The nearest other city in this atlas is Wuzhishan (59 km away). In April its highs average 29.4°C, about as warm as Sanya, with 97 mm of rain.
Among the 884 cities listed in China, Sanya ranks joint 9th of 884 for the warmest April highs and joint 436th of 884 for the driest April (rainfall, lowest first). The mean April high of those 884 cities is 20.6°C; Sanya is 8.6°C warmer than that mean.
From April to May, average highs rise by 1.1°C to 30.3°C, and monthly rainfall rises from 53 mm to 139 mm.
The annual picture
April in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Sanya climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 24.1°C18.5°C | 18.5°C | 12 | 2.4 | 11.211 h |
| February | 25.1°C19.5°C | 19.5°C | 9.9 | 2.5 | 11.512 h |
| March | 27.2°C21.9°C | 21.9°C | 18 | 3.8 | 12.012 h |
| April, selected | 29.2°C24.4°C | 24.4°C | 53 | 8.6 | 12.513 h |
| May | 30.3°C26.0°C | 26.0°C | 139 | 18.9 | 13.013 h |
| June | 30.4°C26.7°C | 26.7°C | 212 | 22.2 | 13.213 h |
| July | 30.0°C26.4°C | 26.4°C | 280 | 23.0 | 13.113 h |
| August | 29.9°C26.1°C | 26.1°C | 261 | 24.3 | 12.713 h |
| September | 29.5°C25.4°C | 25.4°C | 258 | 22.3 | 12.312 h |
| October | 28.4°C24.0°C | 24.0°C | 182 | 14.0 | 11.712 h |
| November | 26.9°C22.0°C | 22.0°C | 54 | 5.6 | 11.311 h |
| December | 24.6°C19.3°C | 19.3°C | 26 | 3.0 | 11.111 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Wuzhishan in AprilChina · 59 kmHigh 29.4°C · Low 22.1°C · 97 mm rain
- Wanning in AprilChina · 110 kmHigh 27.6°C · Low 24.1°C · 69 mm rain
- Basuo in AprilChina · 130 kmHigh 29.8°C · Low 23.9°C · 70 mm rain
- Yaxing in AprilChina · 135 kmHigh 30.8°C · Low 21.9°C · 75 mm rain
- Dacheng in AprilChina · 140 kmHigh 31.4°C · Low 22.0°C · 90 mm rain
- Nada in AprilChina · 141 kmHigh 31.1°C · Low 22.1°C · 90 mm rain
- Qionghai in AprilChina · 149 kmHigh 28.4°C · Low 23.8°C · 73 mm rain
- Sandu in AprilChina · 173 kmHigh 28.9°C · Low 23.1°C · 57 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Sanya) is explained once on the Sanya year overview and on the Sources, method and limits page.