Jeju vs Seoul

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.

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

Jeju reaches an average high of 27°C (81°F) and drops to 24°C (75°F) at night during July. The daily temperature range is 3°C, meaning relatively stable temperatures from day to night.

Seoul averages 28°C (82°F) for the high and 22°C (72°F) for the low, with a daily range of 6°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.

Jeju receives approximately 225 mm of rainfall across 16 rain days during July. Rain is frequent, so waterproof gear is essential.

Seoul sees 315 mm over 17 rain days. That makes Jeju the drier option by 1 rain day and 90 mm of total precipitation.

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