Montreal International (Mirabel) Airport

CYMX / YMX

Montréal, CA

Last Updated
Mar 5, 05:00Z

Current Weather

Display Units
Recent 46 min ago
05:00Z

🌙 Night
VFR
Flight Rules
1°C
Temperature
Dewpoint: -3°C
3 kt
250°
25 SM
Visibility
18,000 ft
Ceiling
Above Ground Level
1022 hPa
QNH
Altimeter Setting

Raw METAR

METAR CYMX 050500Z 25003KT 240V300 25SM BKN180 BKN210 01/M03 A3019 RMK AS5CI2 SLP228

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 270 ft
BKN 18,000 ft AGL
BKN 21,000 ft AGL
☁️
BKN
Broken (5/8-7/8 sky coverage)
18,000 ft
AGL (Above Ground)
18,270 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
21,000 ft
AGL (Above Ground)
21,270 ft AMSL
QNH
1022 hPa
Sea Level Pressure
For altitude above MSL
QFE
1013 hPa
Field Pressure
Height above aerodrome (270 ft)
Pressure Alt
8 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: -1,607 ft
ISA Deviation: -13.5°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF CYMX 042340Z 0500/0524 24005KT P6SM FEW210 FM050400 25007KT P6SM SCT030 BKN160 PROB30 0504/0508 2SM BR BKN005 FM050800 07010KT 6SM -SN BKN015 OVC030 PROB30 0508/0514 2SM -FZDZ -SN BR FM051400 05012G22KT P6SM -SN OVC020 FM052000 05010KT P6SM BKN020 RMK NXT FCST BY 050600Z
Upcoming Changes (Next 12 Hours)
05:46Z BASE
+0h
VFR 240° 5 kt
Visibility: >6SM
08:00Z FM050800
+3h
MVFR 70° 10 kt
Visibility: 6SM
Ceiling: 1,500 ft
Light Snow
08:00Z PROB30
+3h
IFR
Visibility: 2SM
Light Freezing Drizzle, Light Snow, Mist
14:00Z FM051400
+9h
MVFR 50° 12 kt
Visibility: >6SM
Ceiling: 2,000 ft
Light Snow

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
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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
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°
3.0 kt 0.5 kt
10° angle
11/29 8,852 ft 200 ft CON 98°
2.6 kt 1.4 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.