Live Weather & Forecast
Weather in Cheonan
Chungcheongnam, South Korea · Real-time conditions & 3-day outlook
21°C
Feels like 21°C
70°F / Feels 70°F
Sunny
Cheonan, Chungcheongnam
🌞 Daytime
Updated: 2026-04-15 12:00
Humidity
33%
Wind
11.2 km/h NW
Wind Gust
12.9 km/h
Pressure
1011 mb
Visibility
13 km
UV Index
7.1
(High)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
6.9°C
Wind Degree
313°
Air Quality Index
US EPA: Moderate
UK DEFRA: Low (3)
CO
277.9 μg/m³
NO₂
70.7 μg/m³
O₃
11 μg/m³
SO₂
10.4 μg/m³
PM 2.5
25.8 μg/m³
PM 10
33.4 μg/m³
Weather Alerts 1
Met
· Moderate · Immediate
DryAir Advisory
(1) DryAir Advisory Announcement : 2026-04-14T10:00:00+09:00 Effective humidity of 35% or less is expected for at least 2 days.
Today's Hourly Forecast
24-hour breakdown for Cheonan, Chungcheongnam
12 AM
14°
Clear
1 AM
13°
Clear
2 AM
13°
Clear
3 AM
13°
Clear
4 AM
12°
Clear
5 AM
12°
Clear
6 AM
11°
Sunny
7 AM
13°
Sunny
8 AM
15°
Sunny
9 AM
18°
Partly Cloudy
10 AM
20°
Sunny
11 AM
21°
Sunny
12 PM
21°
Sunny
1 PM
23°
Sunny
2 PM
23°
Sunny
3 PM
23°
Sunny
4 PM
22°
Sunny
5 PM
21°
Sunny
6 PM
19°
Sunny
7 PM
15°
Sunny
8 PM
14°
Clear
9 PM
13°
Clear
10 PM
13°
Clear
11 PM
13°
Clear
3-Day Forecast
Daily overview for Cheonan, Chungcheongnam
Today
Sunny
23°
/
11°
🌧️ 0% chance of rain
💧 Avg. humidity: 50%
💨 Max wind: 16.6 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.7
🌅 Sunrise: 05:58 AM
🌇 Sunset: 07:06 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Partly Cloudy
24°
/
10°
🌧️ 0% chance of rain
💧 Avg. humidity: 51%
💨 Max wind: 15.5 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.8
🌅 Sunrise: 05:57 AM
🌇 Sunset: 07:07 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Patchy rain nearby
18°
/
10°
🌧️ 82% chance of rain
💧 Avg. humidity: 62%
💨 Max wind: 11.5 km/h
🌧️ Total precip: 0.15 mm
☀️ UV Index: 0.6
🌅 Sunrise: 05:56 AM
🌇 Sunset: 07:07 PM
🌙 New Moon
🌑 Moon: 0% lit
Best Time to Visit Cheonan
Plan your trip to Cheonan, South Korea around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Cheonan?
Current conditions in Cheonan: Sunny, temperature 21°C, humidity 33%.
What is the best time to visit Cheonan?
The best time to visit Cheonan is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Cheonan?
Cheonan is located at approximately 36.8° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Cheonan?
The wettest period in Cheonan is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Cheonan?
For visits to Cheonan during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Cheonan in?
Cheonan is located in South Korea, in the state of Chungcheongnam.
What are the public holidays in Cheonan in 2026?
View the 2026 public holidays for Cheonan on our Holidays page.
What are the GPS coordinates used for the weather forecast in Cheonan?
The weather forecast for Cheonan uses coordinates 36.815, 127.1141.