Climate averages 1991–2020
Haimen weather
in August.
A hot, very wet month: the 2nd warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Haimen: daytime highs average 29.7°C and nights cool to about 25.8°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 261 mm of rain on roughly 22 days, which makes August a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 56 min on an average August day.
The nearest other city in this atlas is Shantou (19 km away). In August its highs average 30.0°C, about as warm as Haimen, with 238 mm of rain.
Among the 884 cities listed in China, Haimen ranks joint 498th of 884 for the warmest August highs and joint 794th of 884 for the driest August (rainfall, lowest first). The mean August high of those 884 cities is 29.3°C; Haimen is 0.5°C warmer than that mean.
From August to September, average highs fall by 0.9°C to 28.9°C, and monthly rainfall falls from 261 mm to 166 mm.
The annual picture
August 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
Haimen climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 17.4°C12.3°C | 12.3°C | 30 | 4.8 | 10.911 h |
| February | 18.1°C13.1°C | 13.1°C | 42 | 6.9 | 11.411 h |
| March | 20.5°C15.5°C | 15.5°C | 62 | 9.6 | 12.012 h |
| April | 23.9°C19.2°C | 19.2°C | 106 | 11.9 | 12.713 h |
| May | 26.8°C22.7°C | 22.7°C | 191 | 17.3 | 13.213 h |
| June | 28.8°C25.3°C | 25.3°C | 246 | 22.0 | 13.514 h |
| July | 29.8°C26.0°C | 26.0°C | 210 | 20.5 | 13.413 h |
| August, selected | 29.7°C25.8°C | 25.8°C | 261 | 22.1 | 12.913 h |
| September | 28.9°C24.9°C | 24.9°C | 166 | 15.2 | 12.312 h |
| October | 26.5°C22.0°C | 22.0°C | 54 | 5.4 | 11.612 h |
| November | 23.3°C18.2°C | 18.2°C | 54 | 5.0 | 11.011 h |
| December | 19.2°C14.0°C | 14.0°C | 39 | 4.7 | 10.711 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
August in nearby cities
- Shantou in AugustChina · 19 kmHigh 30.0°C · Low 25.8°C · 238 mm rain
- Chenghua in AugustChina · 34 kmHigh 29.8°C · Low 25.5°C · 270 mm rain
- Huicheng (Guangdong), China in AugustChina · 37 kmHigh 29.8°C · Low 25.9°C · 266 mm rain
- Jieyang in AugustChina · 46 kmHigh 31.2°C · Low 25.0°C · 267 mm rain
- Puning in AugustChina · 47 kmHigh 30.8°C · Low 25.1°C · 276 mm rain
- Chaozhou in AugustChina · 51 kmHigh 30.7°C · Low 24.8°C · 315 mm rain
- Jiazi in AugustChina · 65 kmHigh 30.0°C · Low 26.1°C · 310 mm rain
- Huanggang (Guangdong), China in AugustChina · 67 kmHigh 30.2°C · Low 25.1°C · 320 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 Haimen) is explained once on the Haimen year overview and on the Sources, method and limits page.