Weather in Guangzhou in January
China · 20-year averages, January
Prime time. January is about as good as Guangzhou gets. Highs average 20.5 °C, lows 8.8 °C, and rain falls on 6 days — nothing in the month is working against you.
January ranks 2 of 12 in Guangzhou. Only December scores clearly higher, and the difference is small enough to be settled by price rather than weather.
Rain falls on only 6 days, so an itinerary with no wet-weather fallback is a reasonable risk. 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: it never really gets hot: not one day in an average January reaches 30 °C. Across the twenty years measured, the hottest January day reached 31.5 °C and the coldest night fell to -1.6 °C, and the wettest single day dropped 52 mm — roughly 106% of the month's rain in one day.
This is the volatile part. January rainfall has ranged from 0 mm to 330 mm across the twenty years measured — a 330 mm spread around an average of 49 mm. The average is real but almost no individual January looks like it, so treat the figure as the middle of a wide range rather than a forecast.
Wind is light at 9.3 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 70%.
How January sits in the year
This is a turning point in the year — December and February sit on opposite sides of it, so the month contains the change rather than following it.
Daylight in January
January sits at the dark end of Guangzhou's year — 10.9 hours of daylight against 13.5 at midsummer, holding steady all month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.
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
Peak season. Expect the highest prices of the year and to be booking well ahead.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
January 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 — within a degree on temperature, 1 day less rain. Haiphong is close enough to be a coin toss — within a degree on temperature, the same number of rain days.
So: January is effectively as good as it gets here — 2 points behind December, which is inside the margin where the weather stops being the deciding factor and price starts being it.
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 January.
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