Jeju vs Seoul

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Seoul edges ahead as the better destination in June. Seoul offers 9 hours of daily sunshine with only 9 rain days, while Jeju sees 8 sunshine hours and 13 rain days.

Jeju sits in the comfortable travel range at 23°C. Seoul is also comfortable at 26°C.

For travelers who prioritize dry weather, Seoul is the stronger choice in June. Seoul receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.

Jeju reaches an average high of 23°C (73°F) and drops to 19°C (66°F) at night during June. The daily temperature range is 4°C, meaning relatively stable temperatures from day to night.

Seoul averages 26°C (79°F) for the high and 17°C (63°F) for the low, with a daily range of 9°C. The 3°C difference is noticeable but not dramatic.

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

Jeju receives approximately 234 mm of rainfall across 13 rain days during June. You can expect rain roughly every other day.

Seoul sees 134 mm over 9 rain days. That makes Seoul the drier option by 4 rain days and 100 mm of total precipitation.

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