Current Weather
Raw METAR
Clouds - Visual Profile
Weather Briefing
IFRMary's Harbour Airport is currently reporting instrument flight rules (IFR) conditions with overcast skies at 500 feet and 9 SM visibility.
Wind Analysis
Winds are from the east (80°) at 10 knots. Runway 11/29 is favored with a 9-knot headwind and 5-knot crosswind component.
Visibility & Ceiling
Visibility is 9 SM. The ceiling is 500 feet AGL (overcast). Only precision approaches may be usable depending on minimums.
Temperature & Moisture
Temperature is 6°C (43°F) with a dewpoint of 5°C. The temperature-dewpoint spread is very narrow, indicating saturated or near-saturated air. Fog formation or low cloud development is likely.
Forecast Outlook
The TAF forecast covers the next 7 hours. Conditions are expected to remain IFR throughout the forecast period. Expected weather includes: Mist, Light Drizzle, Mist, Mist, FCST, FCST. Temporary IFR conditions are forecast with Light Drizzle, Mist between 20:00Z and 22:00Z. Temporary IFR conditions are forecast with Mist, FCST, FCST between 22:00Z and 03:00Z.
Pilot Recommendations
An instrument rating and IFR flight plan are required. Verify that destination and alternate approach minimums are above current and forecast conditions. The narrow temperature-dewpoint spread creates risk of fog formation, particularly during evening and early morning hours.
This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.
Forecast (TAF)
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Airport Runway Layout
Runway Information
| Runway | Length | Width | Surface | Heading | Wind Component |
|---|---|---|---|---|---|
|
✈️ 11/29
Active: 11
|
2,500 ft | 75 ft | GRAVEL | 0° |
↑ 8.7 kt
•
↔ 5.0 kt
30° angle
|
Weather Statistics - CYMH
14,127 observations | Sep 2025 - Jun 2026Flight Rules Distribution
Mary's Harbour Airport is frequently affected by reduced visibility conditions, with VFR weather only 44.1% of the time and IFR/LIFR conditions occurring in 23.3% of observations. Prevailing winds are from the N averaging 10.3 knots, with gusts recorded up to 36 knots. Temperature extremes range from -25°C to 22°C, reflecting significant seasonal variation. Low visibility conditions (below 3 SM) occur in 6.9% of weather observations. The best months for VFR flying are March, May, October.
Wind Analysis
Temperature Range
Visibility
Best Months for VFR
Runway Wind Analysis
Statistics computed from 14,127 METAR observations (Sep 2025 - Jun 2026). Data sourced from official aviation weather services. Updated daily.
Mary's Harbour Airport - Airport Information
Airport Details
Location
Runway Information
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About Mary's Harbour Airport
Mary's Harbour Airport (CYMH/YMH) is located in Mary's Harbour, CA at an elevation of 38 feet MSL. The airport has 1 runway (11/29), with the longest at 2,500 feet.
Weather Profile
CYMH is weather-challenged, with VFR conditions just 44.1% of the time across 14,127 observations. IFR/LIFR conditions are present 23.3% of the time, making an instrument rating essential for reliable access.
Wind Patterns & Runway Selection
Prevailing winds at CYMH come from the N (0°) with an average speed of 10.3 knots and recorded gusts up to 36 knots. Calm winds are rare (2.8%), so crosswind considerations are a regular factor. Runway 11/29 offers the lowest average crosswind component at 6.8 knots, making it the preferred choice in typical wind conditions.
Seasonal Considerations
The best months for VFR operations are March, May, October, when clear skies are most prevalent. Temperatures at the field range from -25°C (-13°F) to 22°C (72°F), averaging -1.2°C (30°F). Cold weather operations require attention to aircraft preheating, de-icing, and cold-soaked fuel management. Altimeter settings typically range from 28.45 to 30.55 inHg (963-1035 hPa).
Data Sources: Airport data from OurAirports.com. Weather statistics derived from 14,127 official METAR observations (Sep 2025 - Jun 2026). Pilots should always verify current conditions through official channels before flight.
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Recommended guides based on current conditions at CYMH
Official Data Sources
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.