Weather Comparison
Guangzhou vs Hong Kong
Side-by-side weather comparison for September
September Weather: Guangzhou vs Hong Kong
| Metric | Guangzhou | Hong Kong | Better |
|---|---|---|---|
| Average HighHigher is warmer | 30°C (86°F)▲ | 29°C (84°F) | Guangzhou |
| Average LowHigher is milder | 24°C (75°F) | 25°C (77°F)▲ | Hong Kong |
| Rain DaysFewer is drier | 16 days▲ | 17 days | Guangzhou |
| PrecipitationLess is drier | 180 mm▲ | 215 mm | Guangzhou |
| Sunshine HoursMore is sunnier | 9h/day | 9h/day | Tie |
| HumidityLower is more comfortable | 78% | 78% | Tie |
| UV IndexLower is safer | 6 | 6 | Tie |
| Wind SpeedCalmer is better | 13 km/h▲ | 16 km/h | Guangzhou |
Which City is Better in September?
Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Guangzhou edges ahead as the better destination in September. Guangzhou offers 9 hours of daily sunshine with only 16 rain days, while Hong Kong sees 9 sunshine hours and 17 rain days.
Guangzhou can feel quite hot at 30°C, so plan for heat. Hong Kong runs hot at 29°C.
For travelers who prioritize dry weather, Guangzhou is the stronger choice in September.
Temperature Comparison in September
Guangzhou reaches an average high of 30°C (86°F) and drops to 24°C (75°F) at night during September. The daily temperature range is 6°C, meaning relatively stable temperatures from day to night.
Hong Kong averages 29°C (84°F) for the high and 25°C (77°F) for the low, with a daily range of 4°C. The two cities feel quite similar in terms of temperature.
Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in September.
Rainfall Comparison in September
Guangzhou receives approximately 180 mm of rainfall across 16 rain days during September. Rain is frequent, so waterproof gear is essential.
Hong Kong sees 215 mm over 17 rain days. That makes Guangzhou the drier option by 1 rain day and 35 mm of total precipitation.
Both cities share similar humidity levels at 78%.
What to Pack: Guangzhou vs Hong Kong
Packing for Guangzhou in September
Highs of 30°C, lows of 24°C, 16 rain days
- ✓lightweight breathable clothing
- ✓sunscreen SPF 50+
- ✓sunglasses
- ✓a wide-brimmed hat
- ✓waterproof jacket
- ✓compact umbrella
- ✓waterproof shoes
- ✓moisture-wicking fabrics
Packing for Hong Kong in September
Highs of 29°C, lows of 25°C, 17 rain days
- ✓lightweight breathable clothing
- ✓sunscreen SPF 50+
- ✓sunglasses
- ✓a wide-brimmed hat
- ✓waterproof jacket
- ✓compact umbrella
- ✓waterproof shoes
- ✓moisture-wicking fabrics
Pack for both: lightweight breathable clothing, sunscreen SPF 50+, sunglasses, a wide-brimmed hat, waterproof jacket, compact umbrella, waterproof shoes, moisture-wicking fabrics. These items are useful in either destination during September.
Year-Round Comparison: Guangzhou vs Hong Kong
The table below shows average high temperatures and rain days for every month of the year, helping you find the best time to visit either city.September is highlighted for quick reference.
| Month | Guangzhou | Hong Kong | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 19°C | 7d | 19°C | 4d |
| Feb | 20°C | 10d | 20°C | 6d |
| Mar | 23°C | 15d | 22°C | 10d |
| Apr | 27°C | 18d | 25°C | 14d |
| May | 29°C | 22d | 28°C | 20d |
| Jun | 31°C | 24d | 29°C | 24d |
| Jul | 32°C | 23d | 30°C | 24d |
| Aug | 32°C | 24d | 30°C | 24d |
| Sep | 30°C | 16d | 29°C | 17d |
| Oct | 28°C | 6d | 27°C | 7d |
| Nov | 25°C | 6d | 24°C | 5d |
| Dec | 20°C | 5d | 20°C | 4d |
Guangzhou Weather in September
Full forecast, packing tips, and activities
Hong Kong Weather in September
Full forecast, packing tips, and activities