Climate averages 1991–2020
Sanya weather
in July.
A hot, very wet month: the 3rd warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Sanya: daytime highs average 30.0°C and nights cool to about 26.4°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 280 mm of rain on roughly 23 days, which makes July a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 07 min on an average July day.
The nearest other city in this atlas is Wuzhishan (59 km away). In July its highs average 29.9°C, about as warm as Sanya, with 248 mm of rain.
Among the 884 cities listed in China, Sanya ranks joint 571st of 884 for the warmest July highs and 848th of 884 for the driest July (rainfall, lowest first). The mean July high of those 884 cities is 30.0°C; Sanya is level with that mean.
From July to August, average highs fall by 0.1°C to 29.9°C, and monthly rainfall falls from 280 mm to 261 mm.
The annual picture
July 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 | 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, selected | 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
July in nearby cities
- Wuzhishan in JulyChina · 59 kmHigh 29.9°C · Low 24.4°C · 248 mm rain
- Wanning in JulyChina · 110 kmHigh 30.1°C · Low 26.9°C · 163 mm rain
- Basuo in JulyChina · 130 kmHigh 30.6°C · Low 27.0°C · 263 mm rain
- Yaxing in JulyChina · 135 kmHigh 31.5°C · Low 25.0°C · 197 mm rain
- Dacheng in JulyChina · 140 kmHigh 32.2°C · Low 25.1°C · 204 mm rain
- Nada in JulyChina · 141 kmHigh 32.0°C · Low 25.0°C · 204 mm rain
- Qionghai in JulyChina · 149 kmHigh 30.8°C · Low 26.6°C · 177 mm rain
- Sandu in JulyChina · 173 kmHigh 31.3°C · Low 27.2°C · 191 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.