Climate averages 1991–2020
Sanya weather
in March.
A warm, fairly dry month: the 8th warmest and the 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 Sanya: daytime highs average 27.2°C and nights cool to about 21.9°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 18 mm of rain on roughly 4 days, which makes March a fairly dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 02 min on an average March day.
The nearest other city in this atlas is Wuzhishan (59 km away). In March its highs average 27.4°C, about as warm as Sanya, with 35 mm of rain.
Among the 884 cities listed in China, Sanya ranks 10th of 884 for the warmest March highs and joint 190th of 884 for the driest March (rainfall, lowest first). The mean March high of those 884 cities is 14.4°C; Sanya is 12.8°C warmer than that mean.
From March to April, average highs rise by 2.0°C to 29.2°C, and monthly rainfall rises from 18 mm to 53 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
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, selected | 27.2°C21.9°C | 21.9°C | 18 | 3.8 | 12.012 h |
| April | 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
March in nearby cities
- Wuzhishan in MarchChina · 59 kmHigh 27.4°C · Low 19.4°C · 35 mm rain
- Wanning in MarchChina · 110 kmHigh 25.2°C · Low 21.5°C · 48 mm rain
- Basuo in MarchChina · 130 kmHigh 27.4°C · Low 20.9°C · 22 mm rain
- Yaxing in MarchChina · 135 kmHigh 28.7°C · Low 19.0°C · 27 mm rain
- Dacheng in MarchChina · 140 kmHigh 29.3°C · Low 19.1°C · 32 mm rain
- Nada in MarchChina · 141 kmHigh 28.8°C · Low 19.2°C · 32 mm rain
- Qionghai in MarchChina · 149 kmHigh 25.9°C · Low 21.2°C · 42 mm rain
- Sandu in MarchChina · 173 kmHigh 26.0°C · Low 20.0°C · 31 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.