Climate averages 1991–2020
Haikou weather
in March.
A warm, fairly dry month: the 8th warmest and the joint 3rd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
March is a warm month in Haikou: daytime highs average 25.5°C and nights cool to about 20.6°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 35 mm of rain on roughly 7 days, which makes March a fairly dry month (the joint 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 01 min on an average March day.
The nearest other city in this atlas is Qiongshan (3 km away). In March its highs average 25.1°C, about as warm as Haikou, with 35 mm of rain.
Among the 884 cities listed in China, Haikou ranks 18th of 884 for the warmest March highs and joint 424th of 884 for the driest March (rainfall, lowest first). The mean March high of those 884 cities is 14.4°C; Haikou is 11.1°C warmer than that mean.
From March to April, average highs rise by 2.9°C to 28.4°C, and monthly rainfall rises from 35 mm to 71 mm.
The annual picture
March 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
Haikou climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 20.7°C17.2°C | 17.2°C | 30 | 6.1 | 11.111 h |
| February | 22.3°C18.2°C | 18.2°C | 31 | 6.2 | 11.511 h |
| March, selected | 25.5°C20.6°C | 20.6°C | 35 | 7.2 | 12.012 h |
| April | 28.4°C23.4°C | 23.4°C | 71 | 11.7 | 12.613 h |
| May | 30.3°C25.6°C | 25.6°C | 123 | 17.4 | 13.113 h |
| June | 31.3°C26.8°C | 26.8°C | 148 | 17.1 | 13.313 h |
| July | 31.4°C26.9°C | 26.9°C | 170 | 16.9 | 13.213 h |
| August | 30.5°C26.5°C | 26.5°C | 231 | 20.5 | 12.813 h |
| September | 29.3°C25.7°C | 25.7°C | 218 | 18.7 | 12.312 h |
| October | 27.3°C24.2°C | 24.2°C | 161 | 12.8 | 11.712 h |
| November | 25.0°C22.0°C | 22.0°C | 43 | 7.5 | 11.211 h |
| December | 21.6°C18.7°C | 18.7°C | 35 | 5.8 | 10.911 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
March in nearby cities
- Qiongshan in MarchChina · 3 kmHigh 25.1°C · Low 20.5°C · 35 mm rain
- Xucheng in MarchChina · 38 kmHigh 26.0°C · Low 19.7°C · 30 mm rain
- Wenchang in MarchChina · 72 kmHigh 26.6°C · Low 21.0°C · 40 mm rain
- Qionghai in MarchChina · 89 kmHigh 25.9°C · Low 21.2°C · 42 mm rain
- Nada in MarchChina · 99 kmHigh 28.8°C · Low 19.2°C · 32 mm rain
- Dacheng in MarchChina · 116 kmHigh 29.3°C · Low 19.1°C · 32 mm rain
- Sandu in MarchChina · 121 kmHigh 26.0°C · Low 20.0°C · 31 mm rain
- Yaxing in MarchChina · 131 kmHigh 28.7°C · Low 19.0°C · 27 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 Haikou) is explained once on the Haikou year overview and on the Sources, method and limits page.
Qiongshan lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.