Weather in Guangzhou in March
China · 20-year averages, March
A good month. March is a solid month to be in Guangzhou. Highs average 26.2 °C, lows 15.2 °C, and rain falls on 12 days — nothing in the month is working against you.
March ranks 6 of 12 in Guangzhou: past the worst of the year but short of December, which is the month to book if the dates are open.
Rain on 12 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.
What the averages hide
Averages flatten a month, and this one hides a few things: 6 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest March day reached 33.6 °C and the coldest night fell to 4 °C, and the wettest single day dropped 81 mm — roughly 84% of the month's rain in one day.
March is moderately variable: 24 mm in the driest year against 195 mm in the wettest, around an average of 96 mm. Roughly two Marchs in three land near that average, and the third does something else entirely.
Wind is light at 10.2 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 74%.
How March sits in the year
The month is on the way up: 2.9 °C warmer than February, and April adds another 3 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short. Rain has already shifted: 6 days more than February had.
Daylight in March
12 hours of daylight, gaining 0.7 hours across the month. That is between Guangzhou's extremes of 13.5 and 10.7 hours, so days are long enough not to constrain the plan.
An inland climate
Despite being inland, the year stays fairly even: 23 °C between the year's warmest afternoons and coldest nights.
How busy it gets
Busy. Popular without being frantic; book the things you care about, improvise the rest.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
March in Guangzhou versus nearby
If Guangzhou is one option among several, the nearby comparison is worth making. Shenzhen is close enough to be a coin toss — 2.4 °C cooler, 2 days less rain. Haiphong is close enough to be a coin toss — within a degree on temperature, 2 days less rain.
So: March works, with December the better month by 14 points if the dates can move. If they cannot, nothing here should stop you booking.
Every month in Guangzhou
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 20.5 | 8.8 | 6 | 49 | 70 | 10.9 | 89 |
| February | 23.3 | 11.8 | 6 | 41 | 73 | 11.4 | 89 |
| March | 26.2 | 15.2 | 12 | 96 | 74 | 12 | 77 |
| April | 29.2 | 19.3 | 15 | 152 | 78 | 12.7 | 59 |
| May | 30.7 | 23 | 20 | 298 | 83 | 13.2 | 46 |
| June | 31 | 25.2 | 23 | 332 | 88 | 13.5 | 40 |
| July | 31.7 | 25.5 | 20 | 213 | 87 | 13.4 | 38 |
| August | 31.8 | 25.3 | 21 | 244 | 86 | 13 | 38 |
| September | 30.9 | 23.6 | 16 | 178 | 84 | 12.3 | 45 |
| October | 29 | 19.3 | 6 | 56 | 77 | 11.7 | 80 |
| November | 26.3 | 14.9 | 6 | 41 | 73 | 11 | 89 |
| December | 21.5 | 9.5 | 5 | 30 | 67 | 10.7 | 91 |
See all twelve months in Guangzhou, or where else to go in March.
Planning the rest of the trip
- Flight time to Guangzhou how long you are actually in the air
- Guangzhou time zone and the difference from home
- Days until your trip count down to the departure date