RKSO· OSN· Pyeongtaek
Osan Air Base
medium airport · elevation 38 ft (12 m)
20:56Z 10:16Z Night
⏎
Current METARVFR
40 min ago·11:55ZRKSO 231155Z 00000KT 10SM BKN048 29/25 A2992 RMK AO2A SLP135 T02860254 10341 20283 52013 FZRANO $
Wind
Calm
Visibility
10 SM
Ceiling
4,800 ft
Temperature
29°C / 25°C
temp / dew
QNH
1013 hPa
29.92 inHg
Clouds
BKN 4,800ft
Weather
—
Station
RKSO
Remarks
AO2A sea level pressure of 1013.5 HPa hourly temperature of 28.6°C and dew point of 25.4°C 6-hourly maximum temperature of 34.1°C 6-hourly minimum temperature of 28.3°C steady or unsteady increase of 1.3 hectopascals in the past 3 hours FZRANO
Active hazards (US/Canada coverage via AviationWeather.gov)AWC
No active hazards within 250 km.
Wind & Runways
Wind arrow points downwind.
Runways
09L/27R2744 mCON
09R/27L2744 mCON
37.0915°, 127.0294°© CARTOOpen in OSM →
Density altitude
1,734 ft
elevation 38 ft
ISA deviation
+14.1°C
large deviation
Frequencies (community-maintained, cross-check AIP)RKSO
- ATIS132.125
- CLDCLNC DEL127.300
- GND132.450
- TWR122.100
- APP127.900
- DEP127.900
- PMSVPMSV METRO34.650
- PTD120.700
Navaids near airportassoc. RKSO
| Ident | Type | Freq | Power |
|---|---|---|---|
| OSN | VORTAC | 114.70 MHz | HIGH |
Runways2
Physical runway length only — TORA/LDA are not declared in our reference database; consult the AIP.
- RWY 09L/27R9,004 ft (2,744 m)
- Surface
- CON
- Lighting
- Lit
- ILS
- —
- RWY 09R/27L9,004 ft (2,744 m)
- Surface
- CON
- Lighting
- Lit
- ILS
- —
24-hour trend (Iowa State IEM)RKSO
Wind0 kt
Vis16.1 km
Temp28°C
QNH1014 hPa
24-hour wind rose (IEM ASOS, 16 direction bins)n=32
3–6 kt
6–10 kt
10–16 kt
16–22 kt
>22 kt
Airport diagram (OpenStreetMap)Osan Air Base
Diagram unavailable for Osan Air Base.
Terminal Aerodrome Forecast
Issued 2026/08/21 05:21 UTC
21/06Z
21/12Z
21/18Z
22/00Z
22/06Z
BASEIFR
BECMGMVFR
BECMGIFR
BECMGMVFR
TEMPO IFR
IFRBASE21/05Z → 21/10Z1306KT · 5 km · -SHRA · SCT020 BKN040 OVC060
Wind: 1306KT
Visibility: 5 km
Weather: -SHRA
Clouds: SCT020 BKN040 OVC060
TAF RKSO 210500Z 2105/2211 13006KT 4800 -SHRA SCT020 BKN040 OVC060 QNH2983INS
IFRTEMPO21/05Z → 21/10Z4 km · -TSRA · SCT016 BKN025(CB)sn OVC055
Visibility: 4 km
Weather: -TSRA
Clouds: SCT016 BKN025(CB)sn OVC055
TEMPO 2105/2110 4000 -TSRA SCT016 BKN025CB OVC055
MVFRBECMG21/10Z → 21/11ZVRB6KT · 6 km · BR · FEW018 SCT025 BKN045 OVC065
Wind: VRB6KT
Visibility: 6 km
Weather: BR
Clouds: FEW018 SCT025 BKN045 OVC065
BECMG 2110/2111 VRB06KT 6000 BR FEW018 SCT025 BKN045 OVC065 QNH2986INS
IFRBECMG21/18Z → 21/19Z1106KT · 5 km · -SHRA BR · SCT018 BKN025 OVC060
Wind: 1106KT
Visibility: 5 km
Weather: -SHRA BR
Clouds: SCT018 BKN025 OVC060
BECMG 2118/2119 11006KT 4800 -SHRA BR SCT018 BKN025 OVC060 QNH2989INS
MVFRBECMG22/05Z → 22/06ZVRB4KT · 6 km · BR · SCT055 OVC100
Wind: VRB4KT
Visibility: 6 km
Weather: BR
Clouds: SCT055 OVC100
BECMG 2205/2206 VRB04KT 6000 BR SCT055 OVC100 QNH2990INS TX28/2106Z TN24/2121Z
Raw TAF
TAF RKSO 210500Z 2105/2211 13006KT 4800 -SHRA SCT020 BKN040 OVC060 QNH2983INS TEMPO 2105/2110 4000 -TSRA SCT016 BKN025CB OVC055 BECMG 2110/2111 VRB06KT 6000 BR FEW018 SCT025 BKN045 OVC065 QNH2986INS BECMG 2118/2119 11006KT 4800 -SHRA BR SCT018 BKN025 OVC060 QNH2989INS BECMG 2205/2206 VRB04KT 6000 BR SCT055 OVC100 QNH2990INS TX28/2106Z TN24/2121Z
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