Military Airport
RestrictedThis is a Japan Air Self-Defense Force (JASDF) installation. Civil access is not permitted.
Access Notes:
JASDF bases closed to civil traffic
Current Weather
Raw METAR
Clouds - Visual Profile
Weather Briefing
MVFRIwakuni Kintaikyo Airport / Marine Corps Air Station Iwakuni is currently reporting marginal VFR (MVFR) conditions with overcast skies at 2,900 feet and 3 SM visibility.
Wind Analysis
Winds are calm, presenting no crosswind concerns for any runway.
Visibility & Ceiling
Visibility is 3 SM, below VFR minimums in some airspace classifications. Check local requirements before departing VFR. The ceiling is 2900 feet AGL (overcast), placing conditions in the MVFR category.
Temperature & Moisture
Temperature is 21°C (70°F) with a dewpoint of 20°C. The temperature-dewpoint spread is very narrow, indicating saturated or near-saturated air. Fog formation or low cloud development is likely.
Forecast Outlook
The TAF forecast covers the next 32 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 Showers Rain, Mist, Showers Rain, Mist. Temporary IFR conditions are forecast with Showers Rain, Mist between 05:00Z and 11:00Z. Temporary MVFR conditions are forecast with Light Showers Rain, Mist between 16:00Z and 22:00Z.
Pilot Recommendations
VFR pilots should exercise caution. Consider filing IFR if instrument rated, or postponing the flight if conditions are expected to deteriorate further. The narrow temperature-dewpoint spread creates risk of fog formation, particularly during evening and early morning hours. 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.
Forecast (TAF)
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Airport Runway Layout
Runway Information
| Runway | Length | Width | Surface | Heading | Wind Component |
|---|---|---|---|---|---|
| 02/20 | 8,000 ft | 150 ft | CON | 9° |
↑ 0.0 kt
•
↔ 0.0 kt
9° angle
|
| 02R/20L | 1,200 ft | 150 ft | CON | 9° |
↑ 0.0 kt
•
↔ 0.0 kt
9° angle
|
Weather Statistics - RJOI
10,787 observations | Sep 2025 - Jul 2026Flight Rules Distribution
Iwakuni Kintaikyo Airport / Marine Corps Air Station Iwakuni enjoys predominantly VFR conditions, with visual flight rules prevailing 82.9% of the time. Prevailing winds are from the NW averaging 6.4 knots. Calm conditions occur 12.2% of the time. Temperature extremes range from -2°C to 32°C, reflecting significant seasonal variation. The best months for VFR flying are January, November, December.
Wind Analysis
Temperature Range
Visibility
Best Months for VFR
Runway Wind Analysis
Statistics computed from 10,787 METAR observations (Sep 2025 - Jul 2026). Data sourced from official aviation weather services. Updated daily.
Iwakuni Kintaikyo Airport / Marine Corps Air Station Iwakuni - Airport Information
Airport Details
Location
Runway Information
Flight Planning Tools
Nearby Airports
About Iwakuni Kintaikyo Airport / Marine Corps Air Station Iwakuni
Iwakuni Kintaikyo Airport / Marine Corps Air Station Iwakuni 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
Iwakuni Kintaikyo Airport serves as a joint civil-military airport located in Yamaguchi Prefecture, Japan, hosting both civilian traffic and Marine Corps Air Station operations. The airport sits at a low elevation of 7 feet MSL, providing relatively straightforward terrain for aircraft operations. Its two concrete runways offer substantial landing capacity, with the primary runway measuring 8,000 feet in length.
Flying Conditions
Weather conditions at Iwakuni are predominantly favorable for flight operations, with VFR conditions present 92.8% of the time. The airport experiences a moderate temperature range from -2°C to 32°C, with an average of 14.5°C. Prevailing winds from the northwest at an average of 6.3 knots create consistent and predictable wind conditions, with calm periods occurring 12.4% of the time.
Notable Features
The airport's dual runway configuration (02/20 and 02R/20L) provides operational flexibility and redundancy. Both runways demonstrate 100% favorable wind alignment and minimal average crosswind of 3.2 knots. Its coastal location near the Seto Inland Sea likely influences local meteorological patterns, though consistently high visibility averaging 10 statute miles supports reliable visual flight operations.
Approach Considerations
Pilots can expect excellent approach conditions, particularly during the peak VFR months of November, December, and January. The runways' alignment and low crosswind characteristics make both 02/20 and 02R/20L equally suitable for landing, with minimal wind-related approach challenges. The airport's low elevation and consistent weather patterns provide predictable and stable approach conditions for most aircraft types.
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.
Learn More
Recommended guides based on current conditions at RJOI
Official Data Sources
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.