Muan International Airport

RKJB / MWX

Muan (Piseo-ri), KR

Last Updated
Jul 4, 21:00Z

Current Weather

Display Units
Fresh 19 min ago
21:00Z

🌙 Night
MVFR
Flight Rules
24°C
Temperature
Dewpoint: 23°C
10 kt
190°
10+ km
Visibility
1,000 ft
Ceiling
Above Ground Level
1006 hPa
QNH
Altimeter Setting

Raw METAR

METAR RKJB 042100Z 19010KT 9999 BKN010 BKN025 OVC100 24/23 Q1006 NOSIG

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 35 ft
BKN 1,000 ft AGL
BKN 2,500 ft AGL
OVC 10,000 ft AGL
☁️
BKN
Broken (5/8-7/8 sky coverage)
1,000 ft
AGL (Above Ground)
1,035 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
2,500 ft
AGL (Above Ground)
2,535 ft AMSL
☁️
OVC
Overcast (8/8 sky coverage)
10,000 ft
AGL (Above Ground)
10,035 ft AMSL

Weather Briefing

MVFR

Muan International Airport is currently reporting marginal VFR (MVFR) conditions with overcast skies at 10,000 feet and 10 miles or greater visibility.

Wind Analysis

Winds are from the south (190°) at 10 knots. Runway 19 is favored with a 10-knot headwind and 0-knot crosswind component.

Visibility & Ceiling

Visibility is unrestricted. The ceiling is 1000 feet AGL (broken), placing conditions in the MVFR category.

Temperature & Moisture

Temperature is 24°C (75°F) with a dewpoint of 23°C. The temperature-dewpoint spread is very narrow, indicating saturated or near-saturated air. Fog formation or low cloud development is likely.

Forecast Outlook

The TAF forecast covers the next 30 hours. The forecast shows a transition between VFR and IFR conditions. Pilots should monitor the forecast closely and have an alternate airport plan. Expected weather includes: Light Rain, Mist. Temporary IFR conditions are forecast between 18:00Z and 21:00Z.

Pilot Recommendations

VFR pilots should exercise caution. Consider filing IFR if instrument rated, or postponing the flight if conditions are expected to deteriorate further. The narrow temperature-dewpoint spread creates risk of fog formation, particularly during evening and early morning hours. The forecast indicates conditions may deteriorate. Ensure you have fuel reserves and a viable alternate airport.

This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.

QNH
1006 hPa
Sea Level Pressure
For altitude above MSL
QFE
1005 hPa
Field Pressure
Height above aerodrome (35 ft)
Pressure Alt
253 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 1,341 ft
ISA Deviation: +9.1°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF RKJB 041700Z 0418/0524 18007KT 4000 -RA BKN010 BKN025 OVC060 TN22/0420Z TX26/0506Z TN22/0520Z BECMG 0421/0423 6000 FEW010 BKN025 OVC060 BECMG 0504/0506 21010KT 9999 NSW BECMG 0511/0513 18006KT 4000 BR BKN010 BKN025 OVC060 TEMPO 0518/0521 15006KT 2000 OVC005 BECMG 0522/0524 15008KT 6000 NSW FEW010 BKN025 OVC060
Upcoming Changes (Next 12 Hours)
21:18Z BASE
+0h
IFR 180° 7 kt
Visibility: 4 km
Ceiling: 1,000 ft
Light Rain
04:00Z BECMG
+7h
VFR 210° 10 kt
Visibility: 10+ km

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
Chart Features
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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
KJB
01
19 ✈️

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 01/19
Active: 19
9,186 ft 0 ft concrete 14°
10.0 kt 0.0 kt
0° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - RKJB

7,822 observations | Sep 2025 - Jul 2026

Flight Rules Distribution

VFR
60.2%
MVFR
21.2%
IFR
12.3%
LIFR
6.3%

Muan International Airport typically experiences VFR conditions 60.2% of the time, though instrument-rated pilots will find IFR weather present approximately 18.6% of observations. Prevailing winds are from the E averaging 6.3 knots. Temperature extremes range from -8°C to 31°C, reflecting significant seasonal variation. The best months for VFR flying are December, September, June.

Wind Analysis

Prevailing Direction: E (90°)
Average Speed: 6.3 kt
Maximum Recorded: 22 kt
Calm Winds: 0.1%
Direction Distribution:
E
24.9%
N
23.7%
S
7%
W
6.9%
NE
10.5%
NW
14.9%
SE
6.4%
SW
5.7%

Temperature Range

Average: 11.2°C
Range: -8°C to 31°C
-8°C 31°C

Visibility

Average: 10 SM
Below 3 SM: 0%
Fog Frequency: 4%

Best Months for VFR

December September June

Runway Wind Analysis

Runway 01/19
Favorable wind: 100%
Avg crosswind: 3.8 kt

Statistics computed from 7,822 METAR observations (Sep 2025 - Jul 2026). Data sourced from official aviation weather services. Updated daily.

Muan International Airport - Airport Information

Airport Details

ICAO Code: RKJB
IATA Code: MWX
Type: large airport
Status: active
Elevation: 35 ft MSL

Location

City: Muan (Piseo-ri)
Country: KR
Latitude: 34.991406°
Longitude: 126.382814°
Time Zone: Etc/GMT-8

Runway Information

Runway 01/19
Length: 9,186 ft
Width: 0 ft
Surface: concrete
ILS: No

About Muan International Airport

Overview

Muan International Airport serves the southwestern region of South Korea, located in Piseo-ri, Muan. As a large airport with a single concrete runway measuring 9,186 feet, the facility provides critical aviation infrastructure for the Jeollanam-do province. Its strategic positioning enables both regional and potentially international commercial and cargo operations.

Flying Conditions

The airport's low elevation of 35 feet means minimal altitude-related performance considerations for arriving and departing aircraft. Being situated near the southwestern coastal region, pilots can expect maritime atmospheric influences including potential sea breezes and variable coastal weather patterns. Seasonal wind shifts and occasional maritime weather systems may impact approach and departure conditions.

Notable Features

The single runway (01/19) offers a substantial 9,186-foot length, accommodating most commercial and cargo aircraft types. Its concrete surface provides reliable ground handling characteristics across diverse meteorological conditions. The airport's geographic location suggests potential interactions with coastal terrain and associated microclimate dynamics that pilots should anticipate during flight planning.

Approach Considerations

Runway orientation at 01/19 indicates potential crosswind scenarios depending on prevailing wind directions. Pilots should conduct standard terrain and wind assessments during pre-flight planning, noting the airport's coastal positioning. Standard instrument approach procedures will be critical given the low elevation and potential maritime weather influences.

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.