Weather in Jeju City in May
Jeju City, South Korea averages a high of 20.6°C (69.1°F) and low of 15.4°C (59.7°F) in May, with 9 rain days and 9.4 hours of daily sunshine. Travel score: 77.5/100 (Good). The best time to visit Jeju City is October.
High
21°C69°F
Low
15°C60°F
🌧️
9
rain days
☀️
9.4
hrs/day sunshine
💧
79%
humidity
78— Good
May in Jeju City is mild and occasionally wet — good for most activities.
What are the average temperatures in Jeju City?
How much does it rain in Jeju City in May?
Jeju City receives an average of 115.3mm of rainfall across 9 rainy days in May. The annual total is 1491.9mm.
What should I pack for Jeju City in May?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 21°C
🧴
Sunscreen SPF 30+
9 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (9 days)
☔
Umbrella
Be prepared for occasional showers
Traveling to South Korea in May?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31