Seosan Air Base

RKTP / HMY

Seosan, KR

Last Updated
Mar 2, 00:33Z

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
Stale 66 hours ago
00:33Z

🌙 Night
MVFR
Flight Rules
7°C
Temperature
Dewpoint: 4°C
8 kt
80°
9 km
Visibility
2,500 ft
Ceiling
Above Ground Level
1020 hPa
QNH
Altimeter Setting

Raw METAR

SPECI RKTP 020033Z 08008KT 9000 -RABR BKN025 OVC060 07/04 A3013 RMK CIG025

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 39 ft
BKN 2,500 ft AGL
OVC 6,000 ft AGL
☁️
BKN
Broken (5/8-7/8 sky coverage)
2,500 ft
AGL (Above Ground)
2,539 ft AMSL
☁️
OVC
Overcast (8/8 sky coverage)
6,000 ft
AGL (Above Ground)
6,039 ft AMSL
QNH
1020 hPa
Sea Level Pressure
For altitude above MSL
QFE
1019 hPa
Field Pressure
Height above aerodrome (39 ft)
Pressure Alt
-164 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: -1,115 ft
ISA Deviation: -7.9°C

24-Hour Weather Evolution

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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
KTP
03L ✈️
21R
03R ✈️
21L

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 03L/21R
Active: 03L
9,000 ft 150 ft CON 24°
5.1 kt 6.1 kt
50° angle
✈️ 03R/21L
Active: 03R
9,000 ft 150 ft CON 24°
5.1 kt 6.1 kt
50° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - RKTP

384 observations | Sep 2025 - Mar 2026

Flight Rules Distribution

VFR
44.3%
MVFR
25.5%
IFR
24.2%
LIFR
6%

Seosan Air Base is frequently affected by reduced visibility conditions, with VFR weather only 44.3% of the time and IFR/LIFR conditions occurring in 30.2% of observations. Prevailing winds are from the S averaging 5.1 knots. Temperature extremes range from -10°C to 29°C, reflecting significant seasonal variation. The best months for VFR flying are November, January, December.

Wind Analysis

Prevailing Direction: S (180°)
Average Speed: 5.1 kt
Maximum Recorded: 19 kt
Calm Winds: 0%
Direction Distribution:
N
16.7%
NE
9.6%
E
4.7%
SE
6.3%
S
25.3%
SW
12.5%
W
10.2%
NW
14.8%

Temperature Range

Average: 8.9°C
Range: -10°C to 29°C
-10°C 29°C

Visibility

Average: 10 SM
Below 3 SM: 0%
Fog Frequency: 2.6%

Best Months for VFR

November January December

Runway Wind Analysis

Runway 03L/21R
Favorable wind: 100%
Avg crosswind: 3 kt
Runway 03R/21L
Favorable wind: 100%
Avg crosswind: 3 kt

Statistics computed from 384 METAR observations (Sep 2025 - Mar 2026). Data sourced from official aviation weather services. Updated daily.

Seosan Air Base - Airport Information

Airport Details

ICAO Code: RKTP
IATA Code: HMY
Type: small airport
Status: active
Elevation: 39 ft MSL

Location

City: Seosan
Country: KR
Latitude: 36.703999°
Longitude: 126.486000°
Time Zone: Europe/Moscow

Runway Information

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

About Seosan Air Base

Seosan Air Base 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.

Seosan Air Base (RKTP/HMY) is located in Seosan, KR at an elevation of 39 feet MSL. The airport has 2 runways (03L/21R, 03R/21L), with the longest at 9,000 feet.

Weather Profile

RKTP is weather-challenged, with VFR conditions just 44.3% of the time across 384 observations. IFR/LIFR conditions are present 30.2% of the time, making an instrument rating essential for reliable access.

Wind Patterns & Runway Selection

Prevailing winds at RKTP come from the S (180°) with an average speed of 5.1 knots. Calm winds are rare (0%), so crosswind considerations are a regular factor. Runway 03L/21R offers the lowest average crosswind component at 3 knots, making it the preferred choice in typical wind conditions.

Seasonal Considerations

The best months for VFR operations are November, January, December, when clear skies are most prevalent. Temperatures at the field range from -10°C (14°F) to 29°C (84°F), averaging 8.9°C (48°F). Altimeter settings typically range from 29.61 to 30.49 inHg (1003-1033 hPa).

Data Sources: Airport data from OurAirports.com. Weather statistics derived from 384 official METAR observations (Sep 2025 - Mar 2026). Pilots should always verify current conditions through official channels before flight.

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.