Tainan International Airport / Tainan Air Base

RCNN / TNN

Tainan (Rende), TW

Last Updated
Jan 17, 18:00 UTC

Current Weather

Display Units
Last Updated
18:00Z
🌙 Night
VFR
Flight Rules
19°C
Temperature
Dewpoint: 15°C
8kt
20°
10+ km
Visibility
10,000 ft
Ceiling
Above Ground Level
10.12
QNH (inHg)
Altimeter Setting

Raw METAR

METAR RCNN 171800Z 02008KT 9999 FEW012 BKN100 19/15 Q1012 RMK A2989

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 63ft
FEW 1,200ft AGL
BKN 10,000ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
1,200ft
AGL (Above Ground)
1,263ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
10,000ft
AGL (Above Ground)
10,063ft AMSL

Altimeter Settings & Pressure Information

QNH
10.12 inHg
Sea Level Pressure
For altitude above MSL
QFE
10.06 inHg
Field Pressure
Height above aerodrome (63 ft)
Pressure Alt
19,863 ft
QNE Reference
Standard: 29.92 inHg
Density Altitude: 20,358 ft (High - Reduced Performance)
ISA Deviation: +4.1°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF RCNN 171700Z 1718/1818 36004KT 9000 FEW012 BKN100 TX26/1805Z TN19/1720Z TEMPO 1719/1723 6000 BECMG 1803/1806 36008KT 9999 FEW012 BKN050 BECMG 1808/1811 02004KT
Upcoming Changes (Next 12 Hours)
18:41Z BASE
+0h
VFR 360° 4kt
Visibility: 9 km
Ceiling: 10,000ft
19:00Z TEMPO
+1h
MVFR
Visibility: 6 km
03:00Z BECMG
+9h
VFR 360° 8kt
Visibility: 10+ km
Ceiling: 5,000ft

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
CNN
18L
36R ✈️
18R
36L ✈️

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 18L/36R
Active: 36R
10,007 ft 148 ft CON 178°
↑ 7.5kt ↔ 2.7kt
20° angle
✈️ 18R/36L
Active: 36L
10,007 ft 148 ft CON 178°
↑ 7.5kt ↔ 2.7kt
20° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Tainan International Airport / Tainan Air Base - Airport Information

Airport Details

ICAO Code: RCNN
IATA Code: TNN
Type: medium airport
Status: active
Elevation: 63 ft MSL

Location

City: Tainan (Rende)
Country: TW
Latitude: 22.950399°
Longitude: 120.206001°
Time Zone: Etc/GMT+-8

Runway Information

Runway 18L/36R
Length: 10,007 ft
Width: 148 ft
Surface: CON
ILS: No
Runway 18R/36L
Length: 10,007 ft
Width: 148 ft
Surface: CON
ILS: No

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Managed by: ICAO

Access Information: Freely accessible online

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Resources for Pilots

Weather Data

Current conditions and forecasts

• Real-time METAR reports
• Extended TAF forecasts
• Flight rules assessment
Charts & Navigation

Essential aviation charts

• Visual approach charts
• Instrument procedures
• Airport diagrams
Operations

Airport operational data

• Operating hours: 24/7
• Ground handling available
• Fuel services available
Performance Calculator

Calculate takeoff and landing distances

• Runway suitability assessment
• Real weather conditions
• Safety margin analysis
Calculate Performance

About Tainan International Airport / Tainan Air Base

Tainan International Airport / Tainan Air Base (RCNN/TNN) is a regional airport serving commercial and general aviation located in Tainan (Rende), TW. The facility operates at an elevation of 63 feet above sea level and primarily serves regional commercial flights and general aviation.

The facility features 2 runways (18L/36R, 18R/36L) with CON surface . Weather services provide regular METAR reports and TAF forecasts to ensure safe flight operations in all conditions.

Pilots can access comprehensive weather data, including current conditions, extended forecasts, and flight rules analysis. The airport information displayed here includes runway details, operational data, and essential resources for flight planning and execution. All weather data is updated regularly to provide the most current information for aviation decision-making.

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.