Montreal International (Mirabel) Airport

CYMX / YMX

Montréal, CA

Last Updated
Apr 25, 11:00Z

Current Weather

Display Units
Recent 52 min ago
11:00Z

☀️ Day
VFR
Flight Rules
2°C
Temperature
Dewpoint: -2°C
5 kt
70°
30 SM
Visibility
Ceiling
Unlimited
1019 hPa
QNH
Altimeter Setting

Raw METAR

METAR CYMX 251100Z 07005KT 30SM FEW250 02/M02 A3009 RMK CI1 SLP196

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 270 ft
FEW 25,000 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
25,000 ft
AGL (Above Ground)
25,270 ft AMSL

Weather Briefing

VFR

Montreal International (Mirabel) Airport is currently reporting visual flight rules (VFR) conditions with few clouds at 25,000 feet and 30 SM visibility.

Wind Analysis

Winds are from the east-northeast (70°) at 5 knots. Runway 06/24 is favored with a 5-knot headwind and 1-knot crosswind component.

Visibility & Ceiling

Visibility is 30 SM. No ceiling exists. Cloud layers reported: few at 25,000 ft.

Temperature & Moisture

Temperature is 2°C (36°F) with a dewpoint of -2°C. The narrow temperature-dewpoint spread suggests high humidity and potential for visibility restrictions, especially during cooling periods.

Forecast Outlook

The TAF forecast covers the next 24 hours. Conditions are expected to remain VFR throughout the forecast period. Expected weather includes: FCST.

Pilot Recommendations

Conditions are favorable for visual flight.

This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.

QNH
1019 hPa
Sea Level Pressure
For altitude above MSL
QFE
1010 hPa
Field Pressure
Height above aerodrome (270 ft)
Pressure Alt
98 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: -1,397 ft
ISA Deviation: -12.5°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF CYMX 250540Z 2506/2606 VRB03KT P6SM FEW250 FM251200 06008KT P6SM FEW040 FEW240 BECMG 2514/2516 07008G18KT FM260000 06008KT P6SM FEW040 FEW240 BECMG 2602/2604 VRB03KT RMK NXT FCST BY 251200Z
Upcoming Changes (Next 12 Hours)
11:52Z BASE
+0h
VFR VRB 3 kt
Visibility: >6SM
12:00Z FM251200
+1h
VFR 60° 8 kt
Visibility: >6SM
14:00Z BECMG
+3h
VFR 70° 8 kt

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
YMX
06 ✈️
24
11
29

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 06/24
Active: 06
12,000 ft 200 ft CON 45°
4.9 kt 0.9 kt
10° angle
11/29 8,852 ft 200 ft CON 98°
4.4 kt 2.3 kt
28° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - CYMX

6,251 observations | Sep 2025 - Apr 2026

Flight Rules Distribution

VFR
65.4%
MVFR
19.2%
IFR
10.7%
LIFR
4.7%

Montreal International (Mirabel) Airport typically experiences VFR conditions 65.4% of the time, though instrument-rated pilots will find IFR weather present approximately 15.4% of observations. Prevailing winds are from the W averaging 5.7 knots. Calm conditions occur 10.3% of the time. Temperature extremes range from -29°C to 27°C, reflecting significant seasonal variation. Low visibility conditions (below 3 SM) occur in 5.6% of weather observations. The best months for VFR flying are September, October, February.

Wind Analysis

Prevailing Direction: W (270°)
Average Speed: 5.7 kt
Maximum Recorded: 19 kt
Calm Winds: 10.3%
Direction Distribution:
N
6.5%
NE
21.4%
E
5.2%
SE
1.6%
S
3.7%
SW
22.7%
W
23.8%
NW
4.7%

Temperature Range

Average: -1.6°C
Range: -29°C to 27°C
-29°C 27°C

Visibility

Average: 22.1 SM
Below 3 SM: 5.6%
Fog Frequency: 3%

Best Months for VFR

September October February

Runway Wind Analysis

Runway 06/24
Favorable wind: 100%
Avg crosswind: 1.9 kt
Runway 11/29
Favorable wind: 100%
Avg crosswind: 4 kt

Statistics computed from 6,251 METAR observations (Sep 2025 - Apr 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.