Seoul vs Hong Kong

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Seoul edges ahead as the better destination in September. Seoul offers 4 hours of daily sunshine with only 4 rain days, while Hong Kong sees 4 sunshine hours and 4 rain days.

Seoul sits in the comfortable travel range at 15°C. Hong Kong is also comfortable at 19°C.

For travelers who prioritize dry weather, both cities are equally dry in September.

Seoul reaches an average high of 15°C (59°F) and drops to 7°C (45°F) at night during September. The daily temperature range is 8°C, meaning moderate variation throughout the day.

Hong Kong averages 19°C (66°F) for the high and 11°C (52°F) for the low, with a daily range of 8°C. The 4°C difference is noticeable but not dramatic.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in September.

Seoul receives approximately 50 mm of rainfall across 4 rain days during September. Rain is occasional, so a light rain jacket should suffice.

Hong Kong sees 50 mm over 4 rain days. Both cities are equally rainy this month.

Humidity also differs: Seoul averages 65% while Hong Kong sits at 75%. Hong Kong will feel muggier, especially at higher temperatures.