Weather Comparison
Side-by-side weather comparison for October
| Metric | Hong Kong | Seoul | Better |
|---|---|---|---|
| Average HighHigher is warmer | 27°C (81°F)▲ | 19°C (66°F) | Hong Kong |
| Average LowHigher is milder | 23°C (73°F)▲ | 9°C (48°F) | Hong Kong |
| Rain DaysFewer is drier | 7 days | 5 days▲ | Seoul |
| PrecipitationLess is drier | 69 mm | 54 mm▲ | Seoul |
| Sunshine HoursMore is sunnier | 10h/day▲ | 9h/day | Hong Kong |
| HumidityLower is more comfortable | 78% | 65%▲ | Seoul |
| UV IndexLower is safer | 6 | 6 | Tie |
| Wind SpeedCalmer is better | 17 km/h | 14 km/h▲ | Seoul |
Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Seoul edges ahead as the better destination in October. Seoul offers 9 hours of daily sunshine with only 5 rain days, while Hong Kong sees 10 sunshine hours and 7 rain days.
Hong Kong sits in the comfortable travel range at 27°C. Seoul is also comfortable at 19°C.
For travelers who prioritize dry weather, Seoul is the stronger choice in October. Hong Kong receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.
Hong Kong reaches an average high of 27°C (81°F) and drops to 23°C (73°F) at night during October. The daily temperature range is 4°C, meaning relatively stable temperatures from day to night.
Seoul averages 19°C (66°F) for the high and 9°C (48°F) for the low, with a daily range of 10°C. There is a notable 8°C gap between the two cities, so expect a very different feel.
Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in October.
Hong Kong receives approximately 69 mm of rainfall across 7 rain days during October. Rain is occasional, so a light rain jacket should suffice.
Seoul sees 54 mm over 5 rain days. That makes Seoul the drier option by 2 rain days and 15 mm of total precipitation.
Humidity also differs: Hong Kong averages 78% while Seoul sits at 65%. Hong Kong will feel muggier, especially at higher temperatures.
Highs of 27°C, lows of 23°C, 7 rain days
Highs of 19°C, lows of 9°C, 5 rain days
Pack for both: a packable rain jacket, an umbrella. These items are useful in either destination during October.
The table below shows average high temperatures and rain days for every month. October is highlighted for quick reference.
| Month | Hong Kong | Seoul | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 19°C | 4d | 1°C | 4d |
| Feb | 20°C | 6d | 4°C | 4d |
| Mar | 22°C | 10d | 10°C | 6d |
| Apr | 25°C | 14d | 17°C | 7d |
| May | 28°C | 20d | 22°C | 8d |
| Jun | 29°C | 24d | 26°C | 9d |
| Jul | 30°C | 24d | 28°C | 17d |
| Aug | 30°C | 24d | 29°C | 16d |
| Sep | 29°C | 17d | 25°C | 8d |
| Oct | 27°C | 7d | 19°C | 5d |
| Nov | 24°C | 5d | 11°C | 7d |
| Dec | 20°C | 4d | 3°C | 5d |
Hong Kong Weather in October
Full forecast, packing tips, and activities
Seoul Weather in October
Full forecast, packing tips, and activities