Weather in Osan in May
Osan, South Korea averages a high of 22.5°C (72.5°F) and low of 11.5°C (52.7°F) in May, with 7 rain days and 9.9 hours of daily sunshine. Travel score: 82.9/100 (Excellent). The best time to visit Osan is June.
High
23°C73°F
Low
12°C53°F
🌧️
7
rain days
☀️
9.9
hrs/day sunshine
💧
70%
humidity
83— Excellent
May in Osan is warm and mostly dry — excellent conditions for exploring.
What are the average temperatures in Osan?
How much does it rain in Osan in May?
Osan receives an average of 91.4mm of rainfall across 7 rainy days in May. The annual total is 1139.8mm.
What should I pack for Osan in May?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 23°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
🎉Visiting South Korea in May?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31