Climate averages 1991–2020
Haimen weather
in April.
A warm, wet month: the 7th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a warm month in Haimen: daytime highs average 23.9°C and nights cool to about 19.2°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 106 mm of rain on roughly 12 days, which makes April a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 41 min on an average April day.
The nearest other city in this atlas is Shantou (19 km away). In April its highs average 24.4°C, about as warm as Haimen, with 113 mm of rain.
Among the 884 cities listed in China, Haimen ranks joint 140th of 884 for the warmest April highs and joint 604th of 884 for the driest April (rainfall, lowest first). The mean April high of those 884 cities is 20.6°C; Haimen is 3.3°C warmer than that mean.
From April to May, average highs rise by 2.8°C to 26.8°C, and monthly rainfall rises from 106 mm to 191 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
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, selected | 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 | 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
April in nearby cities
- Shantou in AprilChina · 19 kmHigh 24.4°C · Low 19.0°C · 113 mm rain
- Chenghua in AprilChina · 34 kmHigh 24.1°C · Low 18.7°C · 107 mm rain
- Huicheng (Guangdong), China in AprilChina · 37 kmHigh 24.5°C · Low 19.5°C · 99 mm rain
- Jieyang in AprilChina · 46 kmHigh 26.4°C · Low 18.5°C · 114 mm rain
- Puning in AprilChina · 47 kmHigh 26.3°C · Low 18.8°C · 114 mm rain
- Chaozhou in AprilChina · 51 kmHigh 25.6°C · Low 17.9°C · 132 mm rain
- Jiazi in AprilChina · 65 kmHigh 24.9°C · Low 19.7°C · 112 mm rain
- Huanggang (Guangdong), China in AprilChina · 67 kmHigh 25.0°C · Low 18.1°C · 105 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.