Chiang Mai International Airport

VTCC / CNX

Chiang Mai, TH

Last Updated
Apr 22, 22:30Z

Current Weather

Display Units
Fresh 29 min ago
22:30Z

🌙 Night
MVFR
Flight Rules
27°C
Temperature
Dewpoint: 21°C
2 kt
Variable
6 km
Visibility
Ceiling
Unlimited
1006 hPa
QNH
Altimeter Setting

Raw METAR

METAR VTCC 222230Z VRB02KT 6000 FEW035 27/21 Q1006 NOSIG

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 1,036 ft
FEW 3,500 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
3,500 ft
AGL (Above Ground)
4,536 ft AMSL

Weather Briefing

MVFR

Chiang Mai International Airport is currently reporting marginal VFR (MVFR) conditions with few clouds at 3,500 feet and 6 km visibility.

Wind Analysis

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

Visibility & Ceiling

Visibility is 6 km, below VFR minimums in some airspace classifications. Check local requirements before departing VFR. No ceiling exists. Cloud layers reported: few at 3,500 ft.

Temperature & Moisture

Temperature is 27°C (81°F) with a dewpoint of 21°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: Smoke, Thunderstorm Rain. Temporary IFR conditions are forecast with Thunderstorm Rain between 16:00Z and 19:00Z.

Pilot Recommendations

VFR pilots should exercise caution. Consider filing IFR if instrument rated, or postponing the flight if conditions are expected to deteriorate further. 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.

QNH
1006 hPa
Sea Level Pressure
For altitude above MSL
QFE
971 hPa
Field Pressure
Height above aerodrome (1,036 ft)
Pressure Alt
1,254 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 2,943 ft
ISA Deviation: +14.1°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF VTCC 221700Z 2218/2324 25005KT 8000 FEW035 BECMG 2221/2223 35005KT 4000 FU BECMG 2302/2304 17005KT BECMG 2306/2308 8000 NSW TEMPO 2316/2319 26015G25KT 4000 TSRA FEW020CB SCT025
Upcoming Changes (Next 12 Hours)
22:58Z BASE
+0h
MVFR 250° 5 kt
Visibility: 8 km
02:00Z BECMG
+4h
VFR 170° 5 kt
06:00Z BECMG
+8h
MVFR
Visibility: 8 km

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
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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
TCC
18
36

Runway Information

Runway Length Width Surface Heading Wind Component
18/36 11,155 ft 148 ft ASP 180° 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 - VTCC

10,025 observations | Sep 2025 - Apr 2026

Flight Rules Distribution

VFR
81%
MVFR
12.9%
IFR
5.8%
LIFR
0.3%

Chiang Mai International Airport enjoys predominantly VFR conditions, with visual flight rules prevailing 81% of the time. Prevailing winds are from the S averaging 4.6 knots. Calm conditions occur 12.2% of the time. Temperatures typically range between 11°C and 40°C with an average of 25.3°C. The best months for VFR flying are October, January, February.

Wind Analysis

Prevailing Direction: S (180°)
Average Speed: 4.6 kt
Maximum Recorded: 25 kt
Calm Winds: 12.2%
Direction Distribution:
N
15.4%
NE
5.2%
E
4.5%
SE
7.5%
S
18.8%
SW
12.6%
W
15.8%
NW
8%

Temperature Range

Average: 25.3°C
Range: 11°C to 40°C
11°C 40°C

Visibility

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

Best Months for VFR

October January February

Runway Wind Analysis

Runway 18/36
Favorable wind: 100%
Avg crosswind: 2.2 kt

Statistics computed from 10,025 METAR observations (Sep 2025 - Apr 2026). Data sourced from official aviation weather services. Updated daily.

Chiang Mai International Airport - Airport Information

Airport Details

ICAO Code: VTCC
IATA Code: CNX
Type: large airport
Status: active
Elevation: 1,036 ft MSL

Location

City: Chiang Mai
Country: TH
Latitude: 18.766800°
Longitude: 98.962601°
Time Zone: Etc/GMT-7

Runway Information

Runway 18/36
Length: 11,155 ft
Width: 148 ft
Surface: ASP
ILS: No

About Chiang Mai International Airport

Overview

Chiang Mai International Airport (VTCC) serves as a critical aviation hub in northern Thailand, located at coordinates 18.766800, 98.962601. Situated at an elevation of 1036 feet above mean sea level, this large airport provides essential air transportation services for the Chiang Mai region. The airport's single runway (18/36) extends 11,155 feet and is constructed with asphalt surface.

Flying Conditions

Northern Thailand's climate presents variable conditions for aviators, with significant seasonal wind shifts and potential atmospheric variations. Pilots should anticipate temperature and density altitude changes that correlate with the airport's 1036-foot elevation. The asphalt runway provides stable surface conditions, but seasonal humidity and temperature fluctuations may impact aircraft performance.

Notable Features

Chiang Mai's geographic position in northern Thailand introduces complex terrain considerations for pilots, with mountainous surroundings that can generate localized wind patterns and potential turbulence. The airport's substantial runway length of 11,155 feet provides considerable operational flexibility for various aircraft types. Pilots must remain cognizant of potential orographic influences on local meteorological conditions.

Approach Considerations

The runway's 18/36 orientation suggests potential crosswind scenarios depending on prevailing wind directions. With an extensive runway length, pilots have significant margin for approach and landing variations. Standard instrument approach procedures should account for the surrounding mountainous terrain and potential localized wind gradient effects.

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.