Weather Comparison
Side-by-side weather comparison for January
| Metric | Hong Kong | Seoul | Better |
|---|---|---|---|
| Average HighHigher is warmer | 19°C (66°F)▲ | 1°C (34°F) | Hong Kong |
| Average LowHigher is milder | 13°C (55°F)▲ | -7°C (19°F) | Hong Kong |
| Rain DaysFewer is drier | 4 days | 4 days | Tie |
| PrecipitationLess is drier | 24 mm | 19 mm▲ | Seoul |
| Sunshine HoursMore is sunnier | 8h/day | 8h/day | Tie |
| HumidityLower is more comfortable | 78% | 65%▲ | Seoul |
| UV IndexLower is safer | 3 | 1▲ | Seoul |
| Wind SpeedCalmer is better | 18 km/h | 15 km/h▲ | Seoul |
Hong Kong and Seoul are closely matched in January. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.
Hong Kong sits in the comfortable travel range at 19°C. Seoul is cooler at 1°C.
For travelers who prioritize dry weather, both cities are equally dry in January.
Hong Kong reaches an average high of 19°C (66°F) and drops to 13°C (55°F) at night during January. The daily temperature range is 6°C, meaning relatively stable temperatures from day to night.
Seoul averages 1°C (34°F) for the high and -7°C (19°F) for the low, with a daily range of 8°C. There is a notable 18°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 January.
Hong Kong receives approximately 24 mm of rainfall across 4 rain days during January. Rain is occasional, so a light rain jacket should suffice.
Seoul sees 19 mm over 4 rain days. Both cities are equally rainy this month.
Humidity also differs: Hong Kong averages 78% while Seoul sits at 65%. Hong Kong will feel muggier, especially at higher temperatures.
Highs of 19°C, lows of 13°C, 4 rain days
Highs of 1°C, lows of -7°C, 4 rain days
The table below shows average high temperatures and rain days for every month. January 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 January
Full forecast, packing tips, and activities
Seoul Weather in January
Full forecast, packing tips, and activities