Yonaguni Airport

ROYN / OGN

Yonaguni, JP

Last Updated
Mar 4, 10:00Z

No METAR Available for ROYN

Showing weather from nearby airport with METAR data.

Currently using: ROYN
Weather Source: Yonaguni Airport (ROYN)
Distance: 0nm / 0km from ROYN

Current Weather

Display Units
Recent 42 min ago
10:00Z

☀️ Day
VFR
Flight Rules
21°C
Temperature
Dewpoint: 16°C
15 kt
80°
10+ km
Visibility
4,300 ft
Ceiling
Above Ground Level
--
QNH
Altimeter Setting

Raw METAR

METAR ROYN 041000Z AUTO 08015KT 9999 FEW031 SCT033 BKN043 21/16 Q1015

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 70 ft
FEW 3,100 ft AGL
SCT 3,300 ft AGL
BKN 4,300 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
3,100 ft
AGL (Above Ground)
3,170 ft AMSL
SCT
Scattered (3/8-4/8 sky coverage)
3,300 ft
AGL (Above Ground)
3,370 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
4,300 ft
AGL (Above Ground)
4,370 ft AMSL

24-Hour Weather Evolution

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Airport Runway Layout

N
OYN
08 ✈️
26

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 08/26
Active: 08
4,920 ft 150 ft ASP 75°
15.0 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 - ROYN

4,344 observations | Sep 2025 - Mar 2026

Flight Rules Distribution

VFR
66.5%
MVFR
22.4%
IFR
9.5%
LIFR
1.6%

Yonaguni Airport typically experiences VFR conditions 66.5% of the time, though instrument-rated pilots will find IFR weather present approximately 11.1% of observations. Prevailing winds are from the NE averaging 15.2 knots, with gusts recorded up to 46 knots. Temperatures typically range between 12°C and 34°C with an average of 22.9°C. The best months for VFR flying are September, November, January.

Wind Analysis

Prevailing Direction: NE (45°)
Average Speed: 15.2 kt
Maximum Recorded: 46 kt
Calm Winds: 0%
Direction Distribution:
N
24.5%
NE
31.6%
E
15.9%
SE
15%
S
10.6%
SW
0.8%
W
0.6%
NW
1%

Temperature Range

Average: 22.9°C
Range: 12°C to 34°C
12°C 34°C

Visibility

Average: 10 SM
Below 3 SM: 0%
Fog Frequency: 0.5%

Best Months for VFR

September November January

Runway Wind Analysis

Runway 08/26
Favorable wind: 100%
Avg crosswind: 11 kt

Statistics computed from 4,344 METAR observations (Sep 2025 - Mar 2026). Data sourced from official aviation weather services. Updated daily.

Yonaguni Airport - Airport Information

Airport Details

ICAO Code: ROYN
IATA Code: OGN
Type: medium airport
Status: active
Elevation: 70 ft MSL

Location

City: Yonaguni
Country: JP
Latitude: 24.467298°
Longitude: 122.979827°
Time Zone: Etc/GMT-8

Runway Information

Runway 08/26
Length: 4,920 ft
Width: 150 ft
Surface: ASP
ILS: No

About Yonaguni Airport

Overview

Yonaguni Airport serves the remote Yonaguni Island, located at the westernmost point of Japan. Situated at 70 feet above mean sea level, this medium-sized airport provides critical transportation infrastructure for the island's 1,700 residents and supports regional connectivity in the Ryukyu Islands.

Flying Conditions

Meteorological data indicates predominantly favorable visual flight conditions, with 68.3% of observations supporting VFR operations. Wind patterns are consistently from the northeast at an average of 15.4 knots, with September, November, and January presenting the most stable flying conditions. Temperature ranges from 12°C to 34°C, with an average of 23.7°C, offering generally mild operating environments.

Notable Features

The airport features a single 4,920-foot asphalted runway (08/26) positioned to maximize wind alignment. Its geographic location at 24.467298, 122.979827 places it in a maritime environment with potential for rapidly changing wind conditions, as evidenced by occasional wind gusts reaching up to 46 knots. Proximity to the ocean likely introduces complex local wind dynamics for pilots to anticipate.

Approach Considerations

Runway 08/26 demonstrates excellent wind compatibility, with 100% favorable wind conditions and an average crosswind of 11 knots. Pilots should expect consistent northeast winds and prepare for potential moderate crosswind components. The high percentage of VFR conditions (68.3%) suggests reliable visual approach opportunities throughout the year.

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.