Yakushima Airport

RJFC / KUM

Yakushima, JP

Last Updated
Feb 8, 10:45Z

No METAR Available for RJFC

Showing weather from nearby airport with METAR data.

Currently using: RJFC
Weather Source: Yakushima Airport (RJFC)
Distance: 0nm / 0km from RJFC

Current Weather

Display Units
Stale 581 hours ago
10:45Z

☀️ Day
LIFR
Flight Rules
2°C
Temperature
Dewpoint: 0°C
26 kt
340° G38 kt
1.2 km
Visibility
1,100 ft
Ceiling
Above Ground Level
1025 hPa
QNH
Altimeter Setting

Raw METAR

SPECI RJFC 081045Z AUTO 34026G38KT 1200 -SNRA FEW002 SCT005 BKN011 02/00 Q1024 RMK A3026 P/RR

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 124 ft
FEW 200 ft AGL
SCT 500 ft AGL
BKN 1,100 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
200 ft
AGL (Above Ground)
324 ft AMSL
SCT
Scattered (3/8-4/8 sky coverage)
500 ft
AGL (Above Ground)
624 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
1,100 ft
AGL (Above Ground)
1,224 ft AMSL
QNH
1025 hPa
Sea Level Pressure
For altitude above MSL
QFE
1021 hPa
Field Pressure
Height above aerodrome (124 ft)
Pressure Alt
-229 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: -1,759 ft
ISA Deviation: -12.8°C

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
  • • Hover for exact values and timestamps
  • • Click legend items to toggle data series
  • • Zoom and pan for detailed analysis
  • • Units automatically converted to preferences
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
JFC
14
32 ✈️

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 14/32
Active: 32
4,921 ft 148 ft ASP 133°
24.4 kt 8.9 kt
20° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - RJFC

461 observations | Sep 2025 - Feb 2026

Flight Rules Distribution

VFR
30.4%
MVFR
39.7%
IFR
25.2%
LIFR
4.8%

Yakushima Airport is frequently affected by reduced visibility conditions, with VFR weather only 30.4% of the time and IFR/LIFR conditions occurring in 30% of observations. Prevailing winds are from the NW averaging 13 knots, with gusts recorded up to 33 knots. Temperatures typically range between 2°C and 32°C with an average of 18.3°C. The best months for VFR flying are September, January, November.

Wind Analysis

Prevailing Direction: NW (315°)
Average Speed: 13 kt
Maximum Recorded: 33 kt
Calm Winds: 0%
Direction Distribution:
N
8.9%
NE
0.6%
E
5.7%
SE
15.5%
S
9.2%
SW
1.4%
W
8.9%
NW
49.9%

Temperature Range

Average: 18.3°C
Range: 2°C to 32°C
2°C 32°C

Visibility

Average: 10 SM
Below 3 SM: 0%
Fog Frequency: 0.9%

Best Months for VFR

September January November

Runway Wind Analysis

Runway 14/32
Favorable wind: 100%
Avg crosswind: 3 kt

Statistics computed from 461 METAR observations (Sep 2025 - Feb 2026). Data sourced from official aviation weather services. Updated daily.

Yakushima Airport - Airport Information

Airport Details

ICAO Code: RJFC
IATA Code: KUM
Type: medium airport
Status: active
Elevation: 124 ft MSL

Location

City: Yakushima
Country: JP
Latitude: 30.385599°
Longitude: 130.658997°
Time Zone: Etc/GMT-9

Runway Information

Runway 14/32
Length: 4,921 ft
Width: 148 ft
Surface: ASP
ILS: No

About Yakushima Airport

Overview

Yakushima Airport serves the remote island of Yakushima, located in southern Japan's Kagoshima Prefecture. Situated at 124 feet above mean sea level, this medium-sized airport provides critical transportation infrastructure for the island's approximately 13,000 residents and supports tourism to the UNESCO World Heritage site of Yakushima's ancient forest.

Flying Conditions

Meteorological data indicates variable flying conditions, with VFR and MVFR conditions predominating at 67.2% of observations. Wind patterns are consistently northwest (315°), averaging 12 knots with potential gusts up to 33 knots. Temperature ranges from 7°C to 32°C, with an average of 19.5°C, suggesting relatively stable thermal conditions for most of the year.

Notable Features

The airport's single asphalt runway (14/32) measures 4,921 feet, accommodating regional and small commercial aircraft. Yakushima's mountainous terrain and island location create potential for rapidly changing microclimate conditions, with low visibility potential despite generally good average visibility of 10 statute miles. Minimal fog occurrence (1% of observations) suggests generally clear approach environments.

Approach Considerations

Runway 14/32 demonstrates favorable wind alignment, with 100% wind compatibility and a minimal average crosswind of 2.9 knots. Historically, September, January, and November offer the most consistent VFR conditions. Pilots should anticipate northwest wind patterns and prepare for potential wind variability typical of island airport environments.

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.