Shinshu-Matsumoto Airport

RJAF / MMJ

Matsumoto, JP

Last Updated
Apr 23, 00:00Z

Current Weather

Display Units
Fresh 8 min ago
00:00Z

🌙 Night
VFR
Flight Rules
11°C
Temperature
Dewpoint: 1°C
3 kt
Variable
10+ km
Visibility
7,000 ft
Ceiling
Above Ground Level
--
QNH
Altimeter Setting

Raw METAR

METAR RJAF 230000Z VRB03KT 9999 -RA FEW060 BKN070 11/01 Q1013

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 2,182 ft
FEW 6,000 ft AGL
BKN 7,000 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
6,000 ft
AGL (Above Ground)
8,182 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
7,000 ft
AGL (Above Ground)
9,182 ft AMSL

Weather Briefing

VFR

Shinshu-Matsumoto Airport is currently reporting visual flight rules (VFR) conditions with broken clouds at 7,000 feet and 10 miles or greater visibility.

Wind Analysis

Winds are from the variable directions at 3 knots.

Visibility & Ceiling

Visibility is unrestricted. The ceiling is 7000 feet AGL (broken), well above standard VFR minimums.

Temperature & Moisture

Temperature is 11°C (52°F) with a dewpoint of 1°C, indicating moderate moisture conditions.

Pilot Recommendations

Conditions are favorable for visual flight.

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
JAF
18
36

Runway Information

Runway Length Width Surface Heading Wind Component
18/36 6,560 ft 150 ft ASP 171° No wind data
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - RJAF

2,405 observations | Sep 2025 - Apr 2026

Flight Rules Distribution

VFR
90%
MVFR
5.9%
IFR
3.2%
LIFR
0.8%

Shinshu-Matsumoto Airport enjoys predominantly VFR conditions, with visual flight rules prevailing 90% of the time. Prevailing winds are from the N averaging 8.9 knots. Temperature extremes range from -10°C to 33°C, reflecting significant seasonal variation. The best months for VFR flying are April, November, September.

Wind Analysis

Prevailing Direction: N (0°)
Average Speed: 8.9 kt
Maximum Recorded: 26 kt
Calm Winds: 0.4%
Direction Distribution:
N
38.8%
NE
0.7%
E
0.1%
SE
10.5%
S
17.7%
SW
7.4%
W
6.7%
NW
17.7%

Temperature Range

Average: 9.5°C
Range: -10°C to 33°C
-10°C 33°C

Visibility

Average: 10 SM
Below 3 SM: 0%
Fog Frequency: 0.6%

Best Months for VFR

April November September

Runway Wind Analysis

Runway 18/36
Favorable wind: 100%
Avg crosswind: 3.5 kt

Statistics computed from 2,405 METAR observations (Sep 2025 - Apr 2026). Data sourced from official aviation weather services. Updated daily.

Shinshu-Matsumoto Airport - Airport Information

Airport Details

ICAO Code: RJAF
IATA Code: MMJ
Type: medium airport
Status: active
Elevation: 2,182 ft MSL

Location

City: Matsumoto
Country: JP
Latitude: 36.166801°
Longitude: 137.923004°
Time Zone: Europe/Moscow

Runway Information

Runway 18/36
Length: 6,560 ft
Width: 150 ft
Surface: ASP
ILS: No

About Shinshu-Matsumoto Airport

Overview

Shinshu-Matsumoto Airport is a medium-sized airport located in Matsumoto, Japan, situated at an elevation of 2,182 feet above mean sea level. The airport serves the Nagano Prefecture region, providing critical aviation infrastructure for local and regional transportation needs. Its single runway (18/36) spans 6,560 feet with an asphalt surface.

Flying Conditions

The airport experiences predominantly VFR conditions, with 89.4% of observations indicating good visual flight rules. Temperatures range from -7°C to 33°C, with an average of 10.5°C, presenting moderate climatic variability. Wind patterns are characterized by a northerly prevailing direction at an average of 9 knots, with occasional gusts up to 26 knots.

Notable Features

The airport's elevated location at 2,182 feet MSL suggests potential terrain interaction and potential mountain wave effects typical of inland Japanese topography. Pilots should be aware of the significant elevation and potential for rapid weather changes associated with mountainous terrain. The airport's geographic position offers unique atmospheric conditions influenced by surrounding mountain ranges.

Approach Considerations

Runway 18/36 demonstrates highly favorable wind conditions, with 100% wind compatibility and an average crosswind of only 3.7 knots. November, September, and January statistically represent the most consistent VFR months for operations. Visibility averages 10 statute miles, with minimal instances of reduced visibility or fog.

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.