Kochi Ryoma Airport

RJOK / KCZ

Nankoku, JP

Last Updated
Mar 4, 21:00Z

Current Weather

Display Units
Recent 37 min ago
21:00Z

🌙 Night
VFR
Flight Rules
7°C
Temperature
Dewpoint: -1°C
16 kt
340°
10+ km
Visibility
Ceiling
Unlimited
--
QNH
Altimeter Setting

Raw METAR

METAR RJOK 042100Z AUTO 34016KT 9999 NCD 07/M01 Q1022

Forecast (TAF)

View Full TAF
Raw TAF
TAF RJOK 041705Z 0418/0600 34010KT 9999 FEW030 BECMG 0501/0503 19006KT BECMG 0509/0512 34008KT
Upcoming Changes (Next 12 Hours)
21:36Z BASE
+0h
VFR 340° 10 kt
Visibility: 10+ km
01:00Z BECMG
+4h
VFR 190° 6 kt
09:00Z BECMG
+12h
VFR 340° 8 kt

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
Chart Features
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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
JOK
14
32 ✈️

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 14/32
Active: 32
8,203 ft 148 ft ASP 131°
15.0 kt 5.5 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 - RJOK

4,016 observations | Sep 2025 - Mar 2026

Flight Rules Distribution

VFR
94.9%
MVFR
4%
IFR
1.1%
LIFR
0%

Kochi Ryoma Airport enjoys predominantly VFR conditions, with visual flight rules prevailing 94.9% of the time. Prevailing winds are from the N averaging 7.8 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: 7.8 kt
Maximum Recorded: 27 kt
Calm Winds: 0.1%
Direction Distribution:
N
56.6%
NE
2.2%
E
0.8%
SE
3.3%
S
6.4%
SW
3.7%
W
4.9%
NW
21.9%

Temperature Range

Average: 13.8°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: 3.7 kt

Statistics computed from 4,016 METAR observations (Sep 2025 - Mar 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.