Iwami Airport

RJOW / IWJ

Masuda, JP

Last Updated
Jul 4, 10:00Z

Current Weather

Display Units
Stale 10 hours ago
10:00Z

🌙 Night
IFR
Flight Rules
24°C
Temperature
Dewpoint: 23°C
10 kt
260°
2 km
Visibility
900 ft
Ceiling
Above Ground Level
--
QNH
Altimeter Setting

Raw METAR

METAR RJOW 041000Z 26010KT 2000 -SHRA BR FEW001 SCT006 BKN009 24/23 Q1008

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 184 ft
FEW 100 ft AGL
SCT 600 ft AGL
BKN 900 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
100 ft
AGL (Above Ground)
284 ft AMSL
SCT
Scattered (3/8-4/8 sky coverage)
600 ft
AGL (Above Ground)
784 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
900 ft
AGL (Above Ground)
1,084 ft AMSL

Weather Briefing

IFR

Iwami Airport is currently reporting instrument flight rules (IFR) conditions with broken clouds at 900 feet and 2 km visibility. Note: This observation is 9.8 hours old and conditions may have changed.

Wind Analysis

Winds are from the west (260°) at 10 knots. Runway 29 is favored with a 9-knot headwind and 5-knot crosswind component.

Visibility & Ceiling

Visibility is reduced to 2 km. IFR conditions prevail and an instrument clearance is required for operations in controlled airspace. The ceiling is 900 feet AGL (broken). Only precision approaches may be usable depending on minimums.

Temperature & Moisture

Temperature is 24°C (75°F) with a dewpoint of 23°C. The temperature-dewpoint spread is very narrow, indicating saturated or near-saturated air. Fog formation or low cloud development is likely.

Pilot Recommendations

An instrument rating and IFR flight plan are required. Verify that destination and alternate approach minimums are above current and forecast conditions. The narrow temperature-dewpoint spread creates risk of fog formation, particularly during evening and early morning hours.

This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.

24-Hour Weather Evolution

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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
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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
JOW
11
29 ✈️

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 11/29
Active: 29
6,562 ft 148 ft ASP 104°
8.7 kt 5.0 kt
30° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - RJOW

3,390 observations | Sep 2025 - Jul 2026

Flight Rules Distribution

VFR
87.9%
MVFR
8.1%
IFR
2.7%
LIFR
1.3%

Iwami Airport enjoys predominantly VFR conditions, with visual flight rules prevailing 87.9% of the time. Prevailing winds are from the NW averaging 8 knots, with gusts recorded up to 33 knots. Temperature extremes range from -3°C to 32°C, reflecting significant seasonal variation. The best months for VFR flying are November, December, January.

Wind Analysis

Prevailing Direction: NW (315°)
Average Speed: 8 kt
Maximum Recorded: 33 kt
Calm Winds: 0.5%
Direction Distribution:
E
2.8%
N
18.1%
S
21.2%
W
14.6%
NE
9.5%
NW
22%
SE
7.6%
SW
3.7%

Temperature Range

Average: 15.3°C
Range: -3°C to 32°C
-3°C 32°C

Visibility

Average: 10 SM
Below 3 SM: 0%
Fog Frequency: 0.2%

Best Months for VFR

November December January

Runway Wind Analysis

Runway 11/29
Favorable wind: 100%
Avg crosswind: 4.6 kt

Statistics computed from 3,390 METAR observations (Sep 2025 - Jul 2026). Data sourced from official aviation weather services. Updated daily.

Iwami Airport - Airport Information

Airport Details

ICAO Code: RJOW
IATA Code: IWJ
Type: medium airport
Status: active
Elevation: 184 ft MSL

Location

City: Masuda
Country: JP
Latitude: 34.676399°
Longitude: 131.789993°
Time Zone: Etc/GMT-9

Runway Information

Runway 11/29
Length: 6,562 ft
Width: 148 ft
Surface: ASP
ILS: No

About Iwami Airport

Overview

Iwami Airport serves the Masuda region in western Japan, positioned at 34.676399, 131.789993 with an elevation of 184 feet MSL. This medium-sized airport provides critical transportation infrastructure for the local area, supporting regional connectivity and general aviation operations.

Flying Conditions

The airport experiences predominantly VFR conditions, with 92.1% of observations reporting visual flight rules. Temperature ranges from -1°C to 32°C, with an average of 14.9°C, creating generally stable flying conditions. Wind patterns are consistently from the south at 180°, averaging 8.2 knots with occasional gusts up to 29 knots.

Notable Features

The single runway 11/29 is 6,562 feet long with an asphalt surface, accommodating a variety of aircraft types. Geographically situated in a coastal region, pilots should anticipate potential maritime weather influences. The airport demonstrates excellent visibility, with an average of 10 statute miles and minimal fog occurrences (0.1%).

Approach Considerations

Runway 11/29 experiences favorable wind conditions 100% of the time, with an average crosswind component of 4.7 knots. November, December, and September represent the best months for VFR flying, offering the most consistent and predictable weather patterns. Pilots should expect optimal visual meteorological conditions during these months.

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.