Busan vs Jeju

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Busan edges ahead as the better destination in October. Busan offers 9 hours of daily sunshine with only 5 rain days, while Jeju sees 9 sunshine hours and 7 rain days.

Busan sits in the comfortable travel range at 20°C. Jeju is also comfortable at 20°C.

For travelers who prioritize dry weather, Busan is the stronger choice in October.

Busan reaches an average high of 20°C (68°F) and drops to 14°C (57°F) at night during October. The daily temperature range is 6°C, meaning relatively stable temperatures from day to night.

Jeju averages 20°C (68°F) for the high and 17°C (63°F) for the low, with a daily range of 3°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 October.

Busan receives approximately 70 mm of rainfall across 5 rain days during October. Rain is occasional, so a light rain jacket should suffice.

Jeju sees 92 mm over 7 rain days. That makes Busan the drier option by 2 rain days and 22 mm of total precipitation.

Humidity also differs: Busan averages 65% while Jeju sits at 70%. Jeju will feel muggier, especially at higher temperatures.