Yokota Air Base

RJTY / OKO

Fussa, JP

Last Updated
Jul 4, 01:55Z

Military Airport

Restricted

This is a Japan Air Self-Defense Force (JASDF) installation. Civil access is not permitted.

Access Notes:

JASDF bases closed to civil traffic

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

Current Weather

Display Units
Fresh 13 min ago
01:55Z

🌙 Night
VFR
Flight Rules
25°C
Temperature
Dewpoint: 20°C
0 kt
10 SM
Visibility
20,000 ft
Ceiling
Above Ground Level
1015 hPa
QNH
Altimeter Setting

Raw METAR

METAR RJTY 040155Z 00000KT 10SM FEW018 FEW150 BKN200 25/20 A2996 RMK AO2A SLP146 T02500198 $

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 463 ft
FEW 1,800 ft AGL
FEW 15,000 ft AGL
BKN 20,000 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
1,800 ft
AGL (Above Ground)
2,263 ft AMSL
🌤️
FEW
Few (1/8-2/8 sky coverage)
15,000 ft
AGL (Above Ground)
15,463 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
20,000 ft
AGL (Above Ground)
20,463 ft AMSL

Weather Briefing

VFR

Yokota Air Base is currently reporting visual flight rules (VFR) conditions with broken clouds at 20,000 feet and 10 SM visibility.

Wind Analysis

Winds are calm, presenting no crosswind concerns for any runway.

Visibility & Ceiling

Visibility is 10 SM. The ceiling is 20000 feet AGL (broken), well above standard VFR minimums.

Temperature & Moisture

Temperature is 25°C (77°F) with a dewpoint of 20°C, indicating moderate moisture conditions.

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: Mist, Light Showers Rain. Temporary IFR conditions are forecast with Mist between 21:00Z and 00:00Z.

Pilot Recommendations

Conditions are favorable for visual flight. 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
1015 hPa
Sea Level Pressure
For altitude above MSL
QFE
1000 hPa
Field Pressure
Height above aerodrome (463 ft)
Pressure Alt
411 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 1,722 ft
ISA Deviation: +10.9°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF RJTY 032100Z 0321/0503 VRB06KT 9999 BKN007 QNH2995INS TEMPO 0321/0324 4800 BR BECMG 0400/0401 VRB06KT 9999 BKN020 OVC300 QNH2989INS BECMG 0406/0407 18010G15KT 9999 SCT030 BKN300 QNH2988INS BECMG 0417/0418 VRB06KT 8000 -SHRA BKN006 OVC013 QNH2987INS TX26/0406Z TN20/0321Z
Upcoming Changes (Next 12 Hours)
02:07Z BASE
+0h
IFR VRB 6 kt
Visibility: 10+ km
Ceiling: 700 ft
06:00Z BECMG
+4h
VFR 180° 10 kt
Visibility: 10+ km
Ceiling: 30,000 ft

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
JTY
18
36

Runway Information

Runway Length Width Surface Heading Wind Component
18/36 11,000 ft 200 ft CON 170°
0.0 kt 0.0 kt
170° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - RJTY

8,337 observations | Sep 2025 - Jul 2026

Flight Rules Distribution

VFR
72.5%
MVFR
19.2%
IFR
7.1%
LIFR
1.2%

Yokota Air Base typically experiences VFR conditions 72.5% of the time, though instrument-rated pilots will find IFR weather present approximately 8.3% of observations. Prevailing winds are from the N averaging 6.8 knots. Calm conditions occur 26.8% of the time. Temperature extremes range from -7°C to 35°C, reflecting significant seasonal variation. The best months for VFR flying are January, November, December.

Wind Analysis

Prevailing Direction: N (0°)
Average Speed: 6.8 kt
Maximum Recorded: 30 kt
Calm Winds: 26.8%
Direction Distribution:
E
6.3%
N
25.3%
S
7.9%
W
6%
NE
11.9%
NW
6.9%
SE
7.6%
SW
1.3%

Temperature Range

Average: 14.3°C
Range: -7°C to 35°C
-7°C 35°C

Visibility

Average: 9.2 SM
Below 3 SM: 0.7%
Fog Frequency: 0.2%

Best Months for VFR

January November December

Runway Wind Analysis

Runway 18/36
Favorable wind: 100%
Avg crosswind: 3 kt

Statistics computed from 8,337 METAR observations (Sep 2025 - Jul 2026). Data sourced from official aviation weather services. Updated daily.

Yokota Air Base - Airport Information

Airport Details

ICAO Code: RJTY
IATA Code: OKO
Type: large airport
Status: active
Elevation: 463 ft MSL

Location

City: Fussa
Country: JP
Latitude: 35.748501°
Longitude: 139.348007°
Time Zone: Europe/Moscow

Runway Information

Runway 18/36
Length: 11,000 ft
Width: 200 ft
Surface: CON
ILS: No

About Yokota Air Base

Yokota Air Base is a military facility. Civilian access may be restricted or require Prior Permission (PPR). Pilots should consult the JP AIP for current access procedures and restrictions.

Overview

Yokota Air Base is a strategic U.S. Air Force base located in Fussa, Japan, approximately 25 miles west of Tokyo. As a large airport situated at 463 feet above mean sea level, it serves critical military aviation operations in the Pacific region. The base hosts significant United States Air Force assets and plays a key role in regional military logistics and mobility.

Flying Conditions

Located in the Greater Tokyo metropolitan area, Yokota experiences varied seasonal weather conditions typical of central Japan. Pilots should anticipate potential wind variations along the 18/36 runway heading, which spans an impressive 11,000 feet of concrete surface. The airport's moderate elevation and substantial runway length provide robust operational flexibility across different meteorological scenarios.

Notable Features

The airport's geographical position within the dense Tokyo urban landscape requires heightened situational awareness for incoming and outgoing aircraft. Its single long runway (18/36) provides comprehensive operational capabilities for military transport and support aircraft. The surrounding terrain includes urban and suburban environments, necessitating precise navigation and adherence to established approach procedures.

Approach Considerations

With a single 11,000-foot concrete runway oriented at 18/36, pilots should prepare for standard military airfield approach protocols. The substantial runway length supports heavy aircraft operations and provides significant margin for landing and takeoff performance. Standard instrument approach procedures and precise navigation are critical given the airport's proximity to complex metropolitan airspace.

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.