Guangzhou weather in December
In December, Guangzhou has an average high of 21 °C69 °F and an average low of 9 °C48 °F, with about 30 mm1.2 in of precipitation. It is the 11th warmest month of the year and the driest.
How December compares with other months
Compared with November, December is 5.2 °C9.3 °F cooler on average and drier by 11 mm0.4 in. Compared with January, December is 0.8 °C1.4 °F warmer on average and drier by 19 mm0.7 in. Daylight lasts about 10.7 hours around the middle of the month. Average relative humidity is 67% and the average cloud amount 52%.
Is December a good time to visit Guangzhou?
Yes — December is one of the most comfortable months to visit Guangzhou by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in December
For Guangzhou in December, pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
December in nearby places
Other months in Guangzhou
- January20 °C68 °F / 8 °C47 °F
- February23 °C73 °F / 11 °C52 °F
- March26 °C78 °F / 15 °C58 °F
- April29 °C84 °F / 19 °C66 °F
- May30 °C87 °F / 23 °C73 °F
- June31 °C87 °F / 25 °C77 °F
- July31 °C89 °F / 25 °C77 °F
- August32 °C89 °F / 25 °C77 °F
- September31 °C87 °F / 23 °C74 °F
- October29 °C84 °F / 19 °C66 °F
- November26 °C78 °F / 14 °C58 °F
- December21 °C69 °F / 9 °C48 °F
Frequently asked questions
How warm is Guangzhou in December?
In December the average high in Guangzhou is 21 °C (69 °F) and the average low is 9 °C (48 °F).
Does it rain a lot in Guangzhou in December?
On average about 30 mm (1.2 in) of precipitation falls in December; it ranks 12th of the 12 months.
Is December the warmest month in Guangzhou?
No. The warmest month in Guangzhou is August, with an average high of 32 °C (89 °F). The coldest month is January, with an average low of 8 °C (47 °F).
How long is the day in Guangzhou in December?
In the middle of December the day in Guangzhou lasts about 10.7 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Guangzhou in December?
The average relative humidity in December is about 67%. This is a long-term average for the whole day.
How cloudy is Guangzhou in December?
On average about 52% of the sky is covered by cloud in December. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.