Yokota Air Base

RJTY / OKO

Fussa, JP

Last Updated
Apr 23, 04:55Z

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
Recent 58 min ago
04:55Z

☀️ Day
VFR
Flight Rules
16°C
Temperature
Dewpoint: 12°C
10 kt
10°
10 SM
Visibility
5,000 ft
Ceiling
Above Ground Level
1012 hPa
QNH
Altimeter Setting

Raw METAR

METAR RJTY 230455Z 01010KT 10SM -RA FEW012 SCT030 OVC050 16/12 A2987 RMK AO2A SLP118 P0000 T01550117

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 463 ft
FEW 1,200 ft AGL
SCT 3,000 ft AGL
OVC 5,000 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
1,200 ft
AGL (Above Ground)
1,663 ft AMSL
SCT
Scattered (3/8-4/8 sky coverage)
3,000 ft
AGL (Above Ground)
3,463 ft AMSL
☁️
OVC
Overcast (8/8 sky coverage)
5,000 ft
AGL (Above Ground)
5,463 ft AMSL

Weather Briefing

VFR

Yokota Air Base is currently reporting visual flight rules (VFR) conditions with overcast skies at 5,000 feet and 10 SM visibility.

Wind Analysis

Winds are from the north (10°) at 10 knots. Runway 36 is favored with a 10-knot headwind and 2-knot crosswind component.

Visibility & Ceiling

Visibility is 10 SM. The ceiling is 5000 feet AGL (overcast), well above standard VFR minimums.

Temperature & Moisture

Temperature is 16°C (61°F) with a dewpoint of 12°C. The narrow temperature-dewpoint spread suggests high humidity and potential for visibility restrictions, especially during cooling periods.

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, Light Rain, Mist. Temporary IFR conditions are forecast with Light Rain between 06:00Z and 10:00Z. Temporary VFR conditions are forecast between 17:00Z and 21:00Z. Temporary VFR conditions are forecast between 03:00Z and 07:00Z.

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
1012 hPa
Sea Level Pressure
For altitude above MSL
QFE
997 hPa
Field Pressure
Height above aerodrome (463 ft)
Pressure Alt
501 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 732 ft
ISA Deviation: +1.9°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF RJTY 230500Z 2305/2411 36009KT 8000 -RA SCT010 BKN050 OVC080 620802 QNH2984INS TEMPO 2306/2310 6000 -RA BKN010 OVC050 BECMG 2310/2311 36012G18KT 4800 -RA BR BKN007 OVC010 QNH2976INS TEMPO 2317/2321 36015G25KT 520004 BECMG 2322/2324 03009KT 9999 NSW SCT010 BKN050 OVC100 QNH2977INS TEMPO 2403/2407 03010G15KT TX16/2305Z TN11/2301Z
Upcoming Changes (Next 12 Hours)
05:53Z BASE
+0h
MVFR 360° 9 kt
Visibility: 8 km
Ceiling: 5,000 ft
Light Rain
06:00Z TEMPO
+1h
IFR
Visibility: 6 km
Ceiling: 1,000 ft
Light Rain
10:00Z BECMG
+5h
IFR 360° 12 kt
Visibility: 4.8 km
Ceiling: 700 ft
Light Rain, Mist
17:00Z TEMPO
+12h
VFR 360° 15 kt

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
Active: 36
11,000 ft 200 ft CON 170°
9.8 kt 1.7 kt
10° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - RJTY

5,984 observations | Sep 2025 - Apr 2026

Flight Rules Distribution

VFR
77.9%
MVFR
16.4%
IFR
4.9%
LIFR
0.8%

Yokota Air Base typically experiences VFR conditions 77.9% of the time, though instrument-rated pilots will find IFR weather present approximately 5.7% of observations. Prevailing winds are from the N averaging 6.7 knots. Calm conditions occur 27.4% 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: 6.7 kt
Maximum Recorded: 30 kt
Calm Winds: 27.4%
Direction Distribution:
N
26.4%
NE
12.1%
E
6.6%
SE
5.7%
S
6.3%
SW
1.3%
W
7.2%
NW
7.1%

Temperature Range

Average: 12.1°C
Range: -7°C to 35°C
-7°C 35°C

Visibility

Average: 9.3 SM
Below 3 SM: 0.6%
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 5,984 METAR observations (Sep 2025 - Apr 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.