Climate averages 1991–2020
Haimen weather
in March.
A mild, moderately wet month: the 9th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a mild month in Haimen: daytime highs average 20.5°C and nights cool to about 15.5°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 62 mm of rain on roughly 10 days, which makes March a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 00 min on an average March day.
The nearest other city in this atlas is Shantou (19 km away). In March its highs average 21.0°C, about as warm as Haimen, with 79 mm of rain.
Among the 884 cities listed in China, Haimen ranks 134th of 884 for the warmest March highs and joint 552nd of 884 for the driest March (rainfall, lowest first). The mean March high of those 884 cities is 14.4°C; Haimen is 6.2°C warmer than that mean.
From March to April, average highs rise by 3.4°C to 23.9°C, and monthly rainfall rises from 62 mm to 106 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
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, selected | 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 | 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
March in nearby cities
- Shantou in MarchChina · 19 kmHigh 21.0°C · Low 15.3°C · 79 mm rain
- Chenghua in MarchChina · 34 kmHigh 20.8°C · Low 14.9°C · 65 mm rain
- Huicheng (Guangdong), China in MarchChina · 37 kmHigh 21.2°C · Low 15.8°C · 54 mm rain
- Jieyang in MarchChina · 46 kmHigh 23.2°C · Low 14.7°C · 71 mm rain
- Puning in MarchChina · 47 kmHigh 23.1°C · Low 14.9°C · 65 mm rain
- Chaozhou in MarchChina · 51 kmHigh 22.3°C · Low 13.9°C · 85 mm rain
- Jiazi in MarchChina · 65 kmHigh 21.7°C · Low 16.0°C · 59 mm rain
- Huanggang (Guangdong), China in MarchChina · 67 kmHigh 21.7°C · Low 14.3°C · 64 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.