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Weather in Osan, South Korea 🇰🇷

Current Weather in Osan

Sunny
27°C
Feels like 28°C. Sunny.
🌬️ 18 km/h E
💧 59% Humidity
🧭 1011 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 6.6
🌡️ Dew Point: 19°C
🌅 Sunrise: 06:04 AM
🌇 Sunset: 06:56 PM
Map Overlays:

Right now Osan is 27°C with sunny, feeling like 28°C. Expect 59% humidity and winds of about 18 km/h, and the UV index is 7 (high). Across the coming days, Osan should see roughly 17°C to 28°C.

Hourly Forecast for Osan

15:00
Sunny
28°
3%
16:00
Sunny
27°
3%
17:00
Sunny
26°
4%
18:00
Sunny
24°
6%
19:00
Clear
22°
6%
20:00
Clear
21°
5%
21:00
Clear
21°
5%
22:00
Clear
20°
6%
23:00
Clear
20°
7%
00:00
Clear
19°
7%
01:00
Partly Cloudy
19°
10%
02:00
Clear
18°
11%
03:00
Clear
18°
9%
04:00
Cloudy
18°
18%
05:00
Clear
18°
10%
06:00
Clear
17°
10%
07:00
Sunny
18°
10%
08:00
Sunny
19°
9%
09:00
Partly Cloudy
21°
11%
10:00
Partly Cloudy
22°
9%
11:00
Cloudy
24°
13%
12:00
Sunny
25°
3%
13:00
Overcast
26°
13%
14:00
Partly Cloudy
27°
5%

14-Day Forecast for Osan

Fri, Sep 04
Sunny Sunny
28° / 20°
Sat, Sep 05
Sunny Sunny
27° / 17°
Sun, Sep 06
Sunny Sunny
27° / 19°
Mon, Sep 07
Sunny Sunny
28° / 17°
Tue, Sep 08
Overcast Overcast
26° / 15°
Wed, Sep 09
Overcast Overcast
22° / 19°
Thu, Sep 10
Overcast Overcast
21° / 18°
Fri, Sep 11
Patchy rain nearby Patchy rain nearby
18° / 16°
Sat, Sep 12
Overcast Overcast
22° / 18°
Sun, Sep 13
Heavy rain Heavy rain
20° / 19°
Mon, Sep 14
Light rain shower Light rain shower
20° / 18°
Tue, Sep 15
Patchy rain nearby Patchy rain nearby
26° / 19°
Wed, Sep 16
Patchy rain nearby Patchy rain nearby
27° / 20°
Thu, Sep 17
Patchy rain nearby Patchy rain nearby
24° / 19°

Additional Forecasts for Osan

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 168.0 μg/m³
O₃ (Ozone) 133.0 μg/m³
NO₂ (Nitrogen Dioxide) 4.6 μg/m³
SO₂ (Sulphur Dioxide) 3.1 μg/m³
PM2.5 (Fine particles) 8.5 μg/m³
PM10 (Coarse particles) 11.2 μg/m³

Historical Weather

Weather Forecasts for Other Cities in South Korea

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Best Time to Be Outside in Osan Today

The most comfortable window in Osan today looks like 16:00 to 19:00, when it is around 26°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in Osan

What is the temperature in Osan right now?

It is currently 27°C (81°F) in Osan, sunny (feels like 28°C).

What's the weather like in Osan right now?

Conditions in Osan right now: Sunny, humidity 59%, wind 18 km/h E.

What is today's forecast for Osan?

Today in Osan: high 28°C, low 20°C, sunny. Chance of rain: 7%.

What is the 7-day weather forecast for Osan?

Daily highs and lows for Osan:

  • 2026-09-04: 28°C / 20°C
  • 2026-09-05: 27°C / 17°C
  • 2026-09-06: 27°C / 19°C
  • 2026-09-07: 28°C / 17°C
  • 2026-09-08: 26°C / 15°C
  • 2026-09-09: 22°C / 19°C
  • 2026-09-10: 21°C / 18°C
Is it going to rain in Osan today?

There is a 7% chance of rain in Osan today. Total expected precipitation: 0.01 mm.

What is the wind speed in Osan right now?

Wind in Osan is currently 18 km/h (11 mph) from the E.

What is the UV index in Osan right now?

The UV index in Osan is currently 6.6 (high). Sun protection is recommended when the index is 3 or higher.

Weather forecasts for other major cities in 🇰🇷 South Korea: Seoul · Busan · Incheon · Daegu · Gwangju · Daejeon · Suwon · Goyang-si · Seongnam-si · Changwon · Ulsan · Bucheon-si · Cheongju-si · Ansan-si · Cheonan · Jeonju · Hwaseong-si · Anyang-si · Kimhae · Pohang · Jeju City · Uijeongbu-si · Masan · Gumi · Pyeongtaek · Gwangmyeong · Sejong · Yangsan · Wŏnju · Chinju · Iksan · Yeosu · Gunpo · Mokpo · Hanam · Gunsan · Suncheon · Chuncheon · Chungju · Icheon-si · Guri-si · Gangneung · Yangju · Seogwipo · Osan · Andong · Gyeongju · Gimcheon · Jeongeup · Gyeongsan-si