Guangzhou climate
Guangzhou (Guangdong, China) has a monsoon-influenced humid subtropical climate (Köppen Cwa). The average temperature over the year is 23 °C73 °F, and about 1,730 mm68 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Guangzhou climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2068 | 847 | 1457 | 491.9 |
| Feb | 2373 | 1152 | 1762 | 411.6 |
| Mar | 2678 | 1558 | 2068 | 963.8 |
| Apr | 2984 | 1966 | 2475 | 1526.0 |
| May | 3087 | 2373 | 2780 | 29812 |
| Jun | 3187 | 2577 | 2882 | 33213 |
| Jul | 3189 | 2577 | 2883 | 2138.4 |
| Aug | 3289 | 2577 | 2883 | 2449.6 |
| Sep | 3187 | 2374 | 2781 | 1787.0 |
| Oct | 2984 | 1966 | 2475 | 562.2 |
| Nov | 2678 | 1458 | 2068 | 411.6 |
| Dec | 2169 | 948 | 1559 | 301.2 |
| Year | 3289 | 847 | 2373 | 1,73068 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 70% | 63% | 2.8 | 10:51 |
| Feb | 73% | 75% | 2.8 | 11:21 |
| Mar | 74% | 82% | 2.9 | 11:58 |
| Apr | 78% | 83% | 3.3 | 12:40 |
| May | 83% | 83% | 3.9 | 13:15 |
| Jun | 88% | 84% | 4.2 | 13:33 |
| Jul | 87% | 76% | 5.0 | 13:25 |
| Aug | 86% | 75% | 4.9 | 12:56 |
| Sep | 84% | 63% | 4.6 | 12:15 |
| Oct | 77% | 49% | 4.2 | 11:34 |
| Nov | 73% | 53% | 3.5 | 10:00 |
| Dec | 67% | 52% | 3.1 | 10:43 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Guangzhou is like
The warmest month is July, with an average high of 31 °C89 °F and a low of 25 °C77 °F. The coldest is January, when highs average 20 °C68 °F and lows 8 °C47 °F. There is a clear seasonal cycle, with 14.4 °C25.9 °F between the average temperature of the warmest and the coolest month.
It is wet, with about 1,730 mm68 in of precipitation per year. The wettest three-month stretch is May–July, which brings 49% of the annual total. The wettest month is June (332 mm13 in), the driest is December (30 mm1.2 in).
Relative humidity ranges from 67% in December to 88% in June. The clearest skies (lowest average cloud amount, 49%) are typical of October. Average wind speed near the ground ranges from 7 km/h (4 mph) in August to 10 km/h (6 mph) in March. Daylight lasts from about 10.7 hours in December to 13.5 hours in June.
Best time to visit Guangzhou
Based on these averages, the most comfortable months for sightseeing and outdoor activities are October–March: average highs of 20 °C68 °F to 29 °C84 °F with 30 mm1.2 in to 96 mm3.8 in of precipitation per month.
The most challenging month is June, which is hot, with average highs of 31 °C87 °F, very wet (332 mm13 in) and humid (88% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
Guangzhou weather by month
- 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
What to pack for Guangzhou
- Wetter months (April–September) — highs 2984 to 32 °C89 °F, lows 1966 to 25 °C77 °F, about 236 mm9.3 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and a good rain jacket or umbrella and quick-drying shoes.
- Drier months (October–March) — highs 2068 to 29 °C84 °F, lows 847 to 19 °C66 °F, about 52 mm2.1 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
How Guangzhou compares
Of the 547 places in China covered by World Climates, Guangzhou is the 41st warmest by annual mean temperature and the 42nd wettest by annual precipitation. See all of them on the China climate page.
Places in other countries with the most similar temperature and rainfall pattern: Tin Shui Wai (Hong Kong, Cwa), Lạng Sơn (Vietnam, Cfa) and Chũ (Vietnam, Cwa).
The same NASA POWER grid cell also contains Foshan (pop. 9,042,509). Their long-term averages in this dataset are essentially the same as for Guangzhou, so they do not have separate pages.
Nearby places
- Daliang 31 km · 23 °C73 °F · 1,730 mm68 in
- Sanshui 37 km · 23 °C73 °F · 1,730 mm68 in
- Shaping 49 km · 23 °C73 °F · 1,730 mm68 in
- Dongguan 52 km · 23 °C73 °F · 1,634 mm64 in
- Licheng 62 km · 22 °C72 °F · 1,868 mm74 in
- Zhongshan 67 km · 23 °C73 °F · 1,701 mm67 in
- Qingyuan 69 km · 22 °C72 °F · 1,880 mm74 in
- Tantou 72 km · 23 °C73 °F · 1,634 mm64 in
Frequently asked questions
What is the warmest month in Guangzhou?
July is the warmest month in Guangzhou, with an average high of 31 °C (89 °F) and an average low of 25 °C (77 °F).
What is the coldest month in Guangzhou?
January is the coldest month, with an average high of 20 °C (68 °F) and an average low of 8 °C (47 °F).
When does it rain the most in Guangzhou?
June is the wettest month with about 332 mm (13.1 in) of precipitation; December is the driest with about 30 mm (1.2 in).
What is the best time to visit Guangzhou?
Judging by long-term averages, the most comfortable months are October–March.
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.