Kochi Ryoma Airport

RJOK / KCZ

Nankoku, JP

Last Updated
Apr 22, 12:00Z

Current Weather

Display Units
Fresh 10 min ago
12:00Z

☀️ Day
VFR
Flight Rules
17°C
Temperature
Dewpoint: 11°C
2 kt
Variable
10+ km
Visibility
Ceiling
Unlimited
--
QNH
Altimeter Setting

Raw METAR

METAR RJOK 221200Z AUTO VRB02KT 9999 NSC 17/11 Q1013

Weather Briefing

VFR

Kochi Ryoma Airport is currently reporting visual flight rules (VFR) conditions with clear skies and 10 miles or greater visibility.

Wind Analysis

Winds are calm, presenting no crosswind concerns for any runway.

Visibility & Ceiling

Visibility is unrestricted. Skies are clear with unlimited ceiling.

Temperature & Moisture

Temperature is 17°C (63°F) with a dewpoint of 11°C, indicating moderate moisture conditions.

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, Showers Rain, Mist. Winds are forecast to reach up to 22 knots during the period. Expect variable wind speeds ranging from 10 to 22 knots. Temporary IFR conditions are forecast with Showers Rain, Mist between 20:00Z and 22:00Z. Temporary IFR conditions are forecast with Showers Rain, Mist between 22:00Z and 03:00Z. Temporary VFR conditions are forecast between 06:00Z and 09:00Z.

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.

Forecast (TAF)

View Full TAF
Raw TAF
TAF RJOK 221106Z 2212/2318 35010KT 9000 -RA FEW015 BKN030 TEMPO 2220/2222 4000 SHRA BR TEMPO 2222/2303 3000 SHRA BR FEW003 BKN008 BKN015 TEMPO 2306/2309 35022G32KT
Upcoming Changes (Next 12 Hours)
12:10Z BASE
+0h
VFR 350° 10 kt
Visibility: 9 km
Ceiling: 3,000 ft
Light Rain
20:00Z TEMPO
+8h
IFR
Visibility: 4 km
Showers Rain, Mist
22:00Z TEMPO
+10h
IFR
Visibility: 3 km
Ceiling: 800 ft
Showers Rain, Mist

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
JOK
14
32

Runway Information

Runway Length Width Surface Heading Wind Component
14/32 8,203 ft 148 ft ASP 131° 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 - RJOK

5,136 observations | Sep 2025 - Apr 2026

Flight Rules Distribution

VFR
94%
MVFR
4.5%
IFR
1.3%
LIFR
0.2%

Kochi Ryoma Airport enjoys predominantly VFR conditions, with visual flight rules prevailing 94% of the time. Prevailing winds are from the N averaging 8 knots, with gusts recorded up to 33 knots. Temperature extremes range from -5°C to 32°C, reflecting significant seasonal variation. The best months for VFR flying are January, November, December.

Wind Analysis

Prevailing Direction: N (0°)
Average Speed: 8 kt
Maximum Recorded: 33 kt
Calm Winds: 0.1%
Direction Distribution:
N
56.8%
NE
2.3%
E
1.2%
SE
4.3%
S
7.5%
SW
3.8%
W
4.1%
NW
19.9%

Temperature Range

Average: 13.9°C
Range: -5°C to 32°C
-5°C 32°C

Visibility

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

Best Months for VFR

January November December

Runway Wind Analysis

Runway 14/32
Favorable wind: 100%
Avg crosswind: 3.9 kt

Statistics computed from 5,136 METAR observations (Sep 2025 - Apr 2026). Data sourced from official aviation weather services. Updated daily.

Kochi Ryoma Airport - Airport Information

Airport Details

ICAO Code: RJOK
IATA Code: KCZ
Type: medium airport
Status: active
Elevation: 42 ft MSL

Location

City: Nankoku
Country: JP
Latitude: 33.546101°
Longitude: 133.669006°
Time Zone: Etc/GMT-9

Runway Information

Runway 14/32
Length: 8,203 ft
Width: 148 ft
Surface: ASP
ILS: No

About Kochi Ryoma Airport

Overview

Kochi Ryoma Airport serves the Kochi Prefecture region in southern Japan, located in Nankoku city. As a medium-sized airport with a single runway (14/32) measuring 8,203 feet, it provides critical aviation infrastructure for regional transportation and supports various aircraft operations in the area.

Flying Conditions

The airport experiences predominantly favorable VFR conditions, with 95.1% of observed weather patterns supporting visual flight rules. Temperature ranges from -5°C to 32°C, with an average of 15.3°C, providing relatively stable flying environments. Winter months like January, November, and December offer the most consistent VFR conditions, with minimal disruptions to flight operations.

Notable Features

Situated at a low elevation of 42 feet mean sea level, Kochi Ryoma Airport has minimal terrain challenges for approaching aircraft. The prevailing winds are from the north (0°), with an average speed of 7.7 knots and occasional gusts up to 27 knots. The airport's runway alignment and wind characteristics suggest minimal terrain-induced turbulence.

Approach Considerations

Runway 14/32 demonstrates excellent wind compatibility, with 100% favorable wind conditions and an average crosswind of only 3.6 knots. Pilots can expect consistent approach conditions, particularly during the winter months when visibility averages 10 statute miles and IFR conditions are exceptionally rare (only 1% of observations).

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.