Seoul vs Jeju

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Jeju edges ahead as the better destination in July. Jeju offers 9 hours of daily sunshine with only 16 rain days, while Seoul sees 8 sunshine hours and 17 rain days.

Seoul sits in the comfortable travel range at 28°C. Jeju is also comfortable at 27°C.

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

Seoul reaches an average high of 28°C (82°F) and drops to 22°C (72°F) at night during July. The daily temperature range is 6°C, meaning relatively stable temperatures from day to night.

Jeju averages 27°C (81°F) for the high and 24°C (75°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 July.

Seoul receives approximately 315 mm of rainfall across 17 rain days during July. Rain is frequent, so waterproof gear is essential.

Jeju sees 225 mm over 16 rain days. That makes Jeju the drier option by 1 rain day and 90 mm of total precipitation.

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