Montreal International (Mirabel) Airport

CYMX / YMX

Montréal, CA

Last Updated
Mar 4, 11:00Z

No METAR Available for CYMX

Showing weather from nearby airport with METAR data.

Currently using: CYMX
Weather Source: Montreal International (Mirabel) Airport (CYMX)
Distance: 0nm / 0km from CYMX

Current Weather

Display Units
Recent 50 min ago
11:00Z

☀️ Day
VFR
Flight Rules
-3°C
Temperature
Dewpoint: -6°C
7 kt
250° G15 kt
25 SM
Visibility
5,500 ft
Ceiling
Above Ground Level
1021 hPa
QNH
Altimeter Setting

Raw METAR

METAR CYMX 041100Z 25007G15KT 25SM FEW010 BKN055 M03/M06 A3016 RMK SF2SC5 SLP222

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 270 ft
FEW 1,000 ft AGL
BKN 5,500 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
1,000 ft
AGL (Above Ground)
1,270 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
5,500 ft
AGL (Above Ground)
5,770 ft AMSL
QNH
1021 hPa
Sea Level Pressure
For altitude above MSL
QFE
1012 hPa
Field Pressure
Height above aerodrome (270 ft)
Pressure Alt
38 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: -2,057 ft
ISA Deviation: -17.5°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF CYMX 040540Z 0406/0506 VRB03KT P6SM SCT020 BKN100 TEMPO 0406/0408 BKN020 BKN100 FM040800 24005KT P6SM BKN015 BKN040 TEMPO 0408/0414 SCT015 SCT040 PROB30 0408/0414 2SM BR BKN006 FM041400 24007KT P6SM FEW015 SCT180 FM041700 24007KT P6SM FEW025 SCT200 FM042000 25007KT P6SM BKN025 BKN180 FM050400 25005KT P6SM SCT030 BKN160 PROB30 0504/0506 2SM BR BKN005 RMK NXT FCST BY 041200Z
Upcoming Changes (Next 12 Hours)
11:49Z BASE
+0h
VFR VRB 3 kt
Visibility: >6SM
Ceiling: 10,000 ft
14:00Z FM041400
+3h
VFR 240° 7 kt
Visibility: >6SM
17:00Z FM041700
+6h
VFR 240° 7 kt
Visibility: >6SM
20:00Z FM042000
+9h
MVFR 250° 7 kt
Visibility: >6SM
Ceiling: 2,500 ft

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
YMX
06
24 ✈️
11
29

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 06/24
Active: 24
12,000 ft 200 ft CON 45°
6.9 kt 1.2 kt
10° angle
11/29 8,852 ft 200 ft CON 98°
6.2 kt 3.3 kt
152° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - CYMX

4,717 observations | Sep 2025 - Mar 2026

Flight Rules Distribution

VFR
66.1%
MVFR
19.9%
IFR
9.9%
LIFR
4.1%

Montreal International (Mirabel) Airport typically experiences VFR conditions 66.1% of the time, though instrument-rated pilots will find IFR weather present approximately 14% of observations. Prevailing winds are from the W averaging 5.5 knots. Calm conditions occur 11.3% of the time. Temperature extremes range from -29°C to 27°C, reflecting significant seasonal variation. Low visibility conditions (below 3 SM) occur in 5.4% of weather observations. The best months for VFR flying are March, September, October.

Wind Analysis

Prevailing Direction: W (270°)
Average Speed: 5.5 kt
Maximum Recorded: 18 kt
Calm Winds: 11.3%
Direction Distribution:
N
5.9%
NE
19.8%
E
4%
SE
1.3%
S
3.5%
SW
24.7%
W
25%
NW
4.5%

Temperature Range

Average: -2.6°C
Range: -29°C to 27°C
-29°C 27°C

Visibility

Average: 22.1 SM
Below 3 SM: 5.4%
Fog Frequency: 2.3%

Best Months for VFR

March September October

Runway Wind Analysis

Runway 06/24
Favorable wind: 100%
Avg crosswind: 1.8 kt
Runway 11/29
Favorable wind: 100%
Avg crosswind: 3.8 kt

Statistics computed from 4,717 METAR observations (Sep 2025 - Mar 2026). Data sourced from official aviation weather services. Updated daily.

Montreal International (Mirabel) Airport - Airport Information

Airport Details

ICAO Code: CYMX
IATA Code: YMX
Type: medium airport
Status: active
Elevation: 270 ft MSL

Location

City: Montréal
Country: CA
Latitude: 45.679501°
Longitude: -74.038696°
Time Zone: Etc/GMT+5

Runway Information

Runway 06/24
Length: 12,000 ft
Width: 200 ft
Surface: CON
ILS: No
Runway 11/29
Length: 8,852 ft
Width: 200 ft
Surface: CON
ILS: No

About Montreal International (Mirabel) Airport

Overview

Montreal International (Mirabel) Airport serves the Greater Montreal region as a strategic medium-sized airport located northwest of Montreal. Situated at 270 feet above mean sea level, the airport provides critical aviation infrastructure for the Quebec area. Its two substantial runways support diverse aviation operations across commercial, cargo, and potential general aviation segments.

Flying Conditions

Pilots can expect predominantly favorable flying conditions, with 64.8% of observations reporting VFR conditions. The airport experiences significant seasonal temperature variation, ranging from -29°C to 27°C, with an average temperature of 0°C. Wind patterns are consistently from the west (270°) at an average of 5.5 knots, with calm conditions occurring 12.1% of the time and maximum gusts reaching 18 knots.

Notable Features

The airport features two concrete runways: a primary 12,000-foot runway (06/24) and a secondary 8,852-foot runway (11/29). Both runways demonstrate excellent wind alignment, with 100% favorable wind coverage. Crosswind conditions are minimal, averaging 1.9 knots on runway 06/24 and 3.9 knots on runway 11/29, which provides flexible operational capabilities for arriving and departing aircraft.

Approach Considerations

Visibility averaging 21.9 statute miles supports reliable approaches, though pilots should be prepared for occasional reduced conditions. September, October, and December offer the most consistent VFR conditions. Low IFR and LIFR conditions occur in 15.5% of observations, primarily during winter months. Pilots should anticipate potential reduced visibility scenarios, with fog present in approximately 3% 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.