Weather in Osan in January
Osan, South Korea averages a high of 2.2°C (36°F) and low of -5.8°C (21.6°F) in January, with 4 rain days and 7.8 hours of daily sunshine. Travel score: 59.6/100 (Mixed). The best time to visit Osan is June.
High
2°C36°F
Low
-6°C22°F
🌧️
4
rain days
☀️
7.8
hrs/day sunshine
💧
61%
humidity
60— Mixed
January in Osan is cold and mostly dry — bring heavy winter clothing.
What are the average temperatures in Osan?
How much does it rain in Osan in January?
Osan receives an average of 20.2mm of rainfall across 4 rainy days in January. The annual total is 1139.8mm.
What should I pack for Osan in January?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Heavy winter coat
Cold weather with highs around 2°C
🩳
Thermal base layers
Stay warm in freezing temperatures
🧤
Warm gloves
Cold nights around -6°C
🧣
Warm scarf
Protect against cold winds
Traveling to South Korea in January?
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