Guangzhou has a humid subtropical climate dominated by the South China Sea monsoon. Summers are long, hot, and extremely humid while winters are short and mild. The city receives approximately 1,736mm of rain annually, with roughly 80% falling between April and September. Typhoon season runs from July to October.
Guangzhou Weather by Month: Temperature and Rainfall Breakdown
| Month | Avg High (°C/°F) | Avg Low (°C/°F) | Rainfall (mm) | Humidity (%) | Sunshine (hrs/day) |
|---|---|---|---|---|---|
| January | 18 / 64 | 10 / 50 | 41 | 72 | 3.7 |
| February | 19 / 66 | 12 / 54 | 69 | 77 | 2.6 |
| March | 22 / 72 | 16 / 61 | 125 | 81 | 2.3 |
| April | 26 / 79 | 20 / 68 | 191 | 83 | 2.4 |
| May | 30 / 86 | 24 / 75 | 283 | 84 | 3.6 |
| June | 32 / 90 | 26 / 79 | 289 | 84 | 4.7 |
| July | 33 / 91 | 26 / 79 | 233 | 81 | 6.5 |
| August | 33 / 91 | 26 / 79 | 228 | 82 | 6.0 |
| September | 32 / 90 | 25 / 77 | 180 | 79 | 5.8 |
| October | 29 / 84 | 21 / 70 | 73 | 72 | 6.0 |
| November | 25 / 77 | 16 / 61 | 40 | 67 | 5.8 |
| December | 20 / 68 | 11 / 52 | 29 | 67 | 5.1 |
Guangzhou Weather in Spring (March to May)
March brings rising temperatures (22°C/72°F) and increasing humidity (81%) as the monsoon approaches. April sees 191mm of rain over 15 days with 83% humidity. May is the start of the hot season at 30°C (86°F) and the second-wettest month at 283mm. The Canton Fair’s spring session in April attracts global business travelers and causes hotel price surges. Pack quick-dry clothing, an umbrella, and waterproof shoes. For planning around the fair, see the best time to visit Guangzhou.
Guangzhou Weather in Summer (June to September)
Summer in Guangzhou is long, hot, and intensely humid. June is the wettest month at 289mm with 84% humidity. July and August both average 33°C (91°F), with 228-233mm of rain and 81-82% humidity. Typhoon season peaks from July to September, with an average of 3-4 storms affecting Guangdong province annually. Canton Tower visibility is poor on humid days. July and August have the most sunshine hours (6.0-6.5 per day) despite the rain. Mornings are the best time for outdoor sightseeing before afternoon storms build. For monthly data, see the Guangzhou weather by month guide.
Guangzhou Weather in Autumn (October to November)
October and November are the best months to visit. October temperatures ease to 29°C (84°F) with just 73mm of rain over 7 days. November drops to 25°C (77°F) with only 40mm. Humidity falls to 67-72%, skies clear, and the Canton Tower observation deck delivers 20km+ visibility. The Canton Fair’s autumn session runs in October, causing hotel rates to spike. November offers the same excellent weather without the fair-related price premiums.
Guangzhou Weather in Winter (December to February)
Winter in Guangzhou is mild by northern standards but damp. January is the coolest month at 18°C (64°F) by day and 10°C (50°F) at night. December is the driest month at just 29mm of rain. February sees 69mm and persistent cloud cover (only 2.6 hours of daily sun). There is no central heating in most buildings, so indoor temperatures can feel colder than outdoors. Pack layers and a warm jacket for evenings. The Spring Festival (Chinese New Year) in January or February brings crowds and price surges. For transport details, consult the Guangzhou travel tips guide.
