Wonju Airport / Hoengseong Air Base (K-38/K-46)

RKNW / WJU

Wonju, KR

Last Updated
Mar 5, 08:53Z

Military Airport

Restricted

This is a Republic of Korea Air Force installation. Civil access is restricted.

Access Notes:

Military fields restricted to civil traffic

Consult official AIP (Korea AIP ENR 5.2) for current access procedures and restrictions.

Current Weather

Display Units
Fresh 22 min ago
08:53Z

☀️ Day
VFR
Flight Rules
12°C
Temperature
Dewpoint: 0°C
6 kt
240°
10+ km
Visibility
11,000 ft
Ceiling
Above Ground Level
1020 hPa
QNH
Altimeter Setting

Raw METAR

SPECI RKNW 050853Z 24006KT 9999 SCT050 BKN110 12/00 A3011 RMK CIG110

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 329 ft
SCT 5,000 ft AGL
BKN 11,000 ft AGL
SCT
Scattered (3/8-4/8 sky coverage)
5,000 ft
AGL (Above Ground)
5,329 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
11,000 ft
AGL (Above Ground)
11,329 ft AMSL
QNH
1020 hPa
Sea Level Pressure
For altitude above MSL
QFE
1009 hPa
Field Pressure
Height above aerodrome (329 ft)
Pressure Alt
127 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: -154 ft
ISA Deviation: -2.3°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF RKNW 050500Z 0506/0612 21008KT CAVOK TNM01/0522Z TX04/0606Z BECMG 0509/0510 21006KT -RA BKN030 OVC100 BECMG 0511/0512 4800 -RA BR BKN015 OVC030 BECMG 0518/0519 3200 -SN BR BKN015
Upcoming Changes (Next 12 Hours)
09:15Z BASE
+0h
VFR 210° 8 kt
Visibility: >10km
11:00Z BECMG
+2h
IFR
Visibility: 4.8 km
Ceiling: 1,500 ft
Light Rain, Mist
18:00Z BECMG
+9h
IFR
Visibility: 3.2 km
Ceiling: 1,500 ft
Light Snow, Mist

24-Hour Weather Evolution

Loading weather data...
Data Sources
  • • Current conditions from METAR observations
  • • Historical data from past 24 hours
  • • No forecast or predicted data included
  • • Data updated with each new METAR report
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Note: Future values beyond current TAF validity are estimates based on climatological data and trends. Always verify with current forecasts before flight operations.

Airport Runway Layout

N
KNW
03
21 ✈️

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 03/21
Active: 21
9,000 ft 150 ft CON 26°
5.2 kt 3.0 kt
30° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - RKNW

641 observations | Sep 2025 - Mar 2026

Flight Rules Distribution

VFR
34.3%
MVFR
22%
IFR
35.3%
LIFR
8.4%

Wonju Airport / Hoengseong Air Base (K-38/K-46) is frequently affected by reduced visibility conditions, with VFR weather only 34.3% of the time and IFR/LIFR conditions occurring in 43.7% of observations. Prevailing winds are from the SW averaging 2.9 knots. Temperature extremes range from -16°C to 29°C, reflecting significant seasonal variation. The best months for VFR flying are March, January, October.

Wind Analysis

Prevailing Direction: SW (225°)
Average Speed: 2.9 kt
Maximum Recorded: 25 kt
Calm Winds: 0%
Direction Distribution:
N
15.1%
NE
18.7%
E
6.4%
SE
3.1%
S
11.5%
SW
25.4%
W
11.4%
NW
8.3%

Temperature Range

Average: 7.8°C
Range: -16°C to 29°C
-16°C 29°C

Visibility

Average: 10 SM
Below 3 SM: 0%
Fog Frequency: 4.7%

Best Months for VFR

March January October

Runway Wind Analysis

Runway 03/21
Favorable wind: 100%
Avg crosswind: 1.2 kt

Statistics computed from 641 METAR observations (Sep 2025 - Mar 2026). Data sourced from official aviation weather services. Updated daily.

Wonju Airport / Hoengseong Air Base (K-38/K-46) - Airport Information

Airport Details

ICAO Code: RKNW
IATA Code: WJU
Type: medium airport
Status: active
Elevation: 329 ft MSL

Location

City: Wonju
Country: KR
Latitude: 37.437113°
Longitude: 127.960051°
Time Zone: Europe/Moscow

Runway Information

Runway 03/21
Length: 9,000 ft
Width: 150 ft
Surface: CON
ILS: No

About Wonju Airport / Hoengseong Air Base (K-38/K-46)

Wonju Airport / Hoengseong Air Base (K-38/K-46) is a military facility. Civilian access may be restricted or require Prior Permission (PPR). Pilots should consult the KR AIP for current access procedures and restrictions.

Overview

Wonju Airport, located in Wonju, South Korea, serves as both a civilian and military airfield (Hoengseong Air Base). Situated at an elevation of 329 ft MSL, the airport provides strategic aviation infrastructure in the central region of South Korea. The airport features a single concrete runway (03/21) measuring 9,000 feet in length.

Flying Conditions

Weather conditions at Wonju Airport demonstrate significant variability, with instrument flight rules (IFR) dominating 35.7% of observations and marginal VFR conditions present 22.5% of the time. Temperature ranges extensively from -15°C to 29°C, with an average of 8.6°C. Prevailing winds from the southwest (225°) average 2.8 knots, with occasional gusts up to 25 knots.

Notable Features

The airport's single runway (03/21) demonstrates excellent wind alignment, with 100% favorable wind conditions. Crosswinds are minimal, averaging only 1.2 knots. Visibility is consistently good, with an average of 10 statute miles and rare instances of reduced visibility, with fog present in only 5.3% of observations.

Approach Considerations

October, January, and November represent the most favorable VFR flying months at Wonju Airport. Pilots can expect predictable wind patterns from the southwest, with generally stable approach conditions. The runway's substantial 9,000-foot length provides ample landing and takeoff space for medium-sized aircraft operations.

Data Sources & Accuracy: Airport information sourced from OurAirports.com, a collaborative database of worldwide airport data. Weather data from official aviation weather services including NOAA Aviation Weather Center and international METAR/TAF providers. Information is updated regularly but pilots should always verify current conditions and NOTAMs through official channels before flight operations.

Official Data Sources

Weather NOAA Aviation Weather Center • International METAR/TAF Network
Airports OurAirports.com • Public domain airport database
NOTAMs FAA NOTAM System • ICAO NOTAM Distribution
Last updated: Jan 1, 1970 12:00 AM UTC

Disclaimer: Data is provided for informational purposes only. Pilots must verify all information through official sources before flight operations. Weather conditions change rapidly; always obtain a current briefing from approved weather services.