Heyuan weather in March
In March, Heyuan has daytime highs averaging 22 °C, nights around 14 °C, with 13 wet days. Figures are 1991–2020 climate normals.
- 22.3°C Average high
- 14.3°C Average low
- 13days Wet days
- 122mm Rainfall
- 12h Daylight
Daily temperatures through March
How March develops
Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.
| Days | Avg high | Avg low | Chance of rain |
|---|---|---|---|
| 1–10 March | 21.2 °C | 12.6 °C | 39 % |
| 11–20 March | 22.2 °C | 14.5 °C | 43 % |
| 21–31 March | 23.3 °C | 15.7 °C | 45 % |
- Average highs rise from 21.2 °C early in March to 23.3 °C by the end of it.
- Rain is most likely over days 21–31 of March (45 % of days) and least likely over days 1–10 (39 %).
What to expect
| Measure | Typical March | Share of the month |
|---|---|---|
| Days above 25 °C | 11 of 31 | 34 % |
| Days above 30 °C | 0.07 of 31 | 0 % |
| Days below 0 °C | 0 of 31 | 0 % |
| Days with more than 1 mm rain | 13 of 31 | 43 % |
Conditions in March
| Measure | Average |
|---|---|
| Mean temperature | 18 °C |
| Record high (1991–2020) | 30 °C |
| Record low (1991–2020) | 3.9 °C |
| Relative humidity | 80 % |
| Wind speed | 13 km/h |
| Cloud cover | 73 % |
March compared with the months around it
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| January | 17.6 °C | 47 mm | 52 % |
| February | 19.3 °C | 61 mm | 65 % |
| March | 22.3 °C | 122 mm | 73 % |
| April | 25.9 °C | 172 mm | 76 % |
| May | 28.5 °C | 246 mm | 79 % |
See all twelve months for Heyuan
- March is the 9th warmest month here.
- It is the 6th driest month of the year.
- It ranks 8th for least cloud cover.
- Days last about 12 hours from sunrise to sunset.
- It rains on 13 of 31 days — 43 % of the month.
- Nights are about 7.9 °C cooler than the middle of the day.
- The hottest March day on record since 1991 reached 30 °C, 8.1 °C above the usual daytime high.
QuestionsMarch in Heyuan, answered
How warm is Heyuan in March?
Daily highs average 22 °C and nights fall to about 14 °C, a spread of 7.9 °C between afternoon and dawn. That makes March the 9th warmest month of the year here.
Does it rain much in Heyuan in March?
March averages 122 mm of rain, spread over about 13 of the 31 days — 43 % of the month. Cloud cover averages 73 % of the sky.
How long are the days in March?
Heyuan averages 12 hours between sunrise and sunset in March. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- Normal period
- 1991–2020
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. Full formulas are on the methodology page.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.