Weather in Cheonan in September
Cheonan, South Korea averages a high of 25.3°C (77.5°F) and low of 17.2°C (63°F) in September, with 8 rain days and 8.6 hours of daily sunshine. Travel score: 81.3/100 (Excellent). The best time to visit Cheonan is May.
High
25°C78°F
Low
17°C63°F
🌧️
8
rain days
☀️
8.6
hrs/day sunshine
💧
77%
humidity
81— Excellent
September in Cheonan is warm and occasionally wet — excellent conditions for exploring.
What are the average temperatures in Cheonan?
How much does it rain in Cheonan in September?
Cheonan receives an average of 139.5mm of rainfall across 8 rainy days in September. The annual total is 1147.3mm.
What should I pack for Cheonan in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 25°C
🧴
Sunscreen SPF 30+
9 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (8 days)
☔
Umbrella
Be prepared for occasional showers
Traveling to South Korea in September?
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