Current Weather
Raw METAR
Clouds - Visual Profile
Weather Briefing
MVFRSeattle–Tacoma International Airport is currently reporting marginal VFR (MVFR) conditions with broken clouds at 2,800 feet and 10 SM visibility.
Wind Analysis
Winds are from the southwest (220°) at 13 knots. Runway 16C/34C is favored with a 7-knot headwind and 11-knot crosswind component.
Visibility & Ceiling
Visibility is 10 SM. The ceiling is 2800 feet AGL (broken), placing conditions in the MVFR category.
Temperature & Moisture
Temperature is 12°C (54°F) with a dewpoint of 6°C, indicating moderate moisture conditions.
Forecast Outlook
The TAF forecast covers the next 29 hours. Conditions are expected to fluctuate between VFR and MVFR. VFR pilots should be prepared for deteriorating conditions. Expected weather includes: Light Showers Rain.
Pilot Recommendations
VFR pilots should exercise caution. Consider filing IFR if instrument rated, or postponing the flight if conditions are expected to deteriorate further.
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 |
|---|---|---|---|---|---|
|
✈️ 16C/34C
Active: 16C
|
9,426 ft | 150 ft | CONC-F | 180° |
↑ 6.5 kt
•
↔ 11.3 kt
60° angle
|
|
✈️ 16L/34R
Active: 16L
|
11,900 ft | 150 ft | ASP | 180° |
↑ 6.5 kt
•
↔ 11.3 kt
60° angle
|
|
✈️ 16R/34L
Active: 16R
|
9,426 ft | 150 ft | CON | 180° |
↑ 6.5 kt
•
↔ 11.3 kt
60° angle
|
| lower/high | 0 ft | 0 ft | 0° |
↓ 10.0 kt
•
↔ 8.4 kt
140° angle
|
Weather Statistics - KSEA
7,027 observations | Sep 2025 - May 2026Flight Rules Distribution
Seattle–Tacoma International Airport typically experiences VFR conditions 63.9% of the time, though instrument-rated pilots will find IFR weather present approximately 10.5% of observations. Prevailing winds are from the S averaging 7.8 knots. Temperature extremes range from -3°C to 32°C, reflecting significant seasonal variation. The best months for VFR flying are September, May, April.
Wind Analysis
Temperature Range
Visibility
Best Months for VFR
Runway Wind Analysis
Statistics computed from 7,027 METAR observations (Sep 2025 - May 2026). Data sourced from official aviation weather services. Updated daily.
Seattle–Tacoma International Airport - Airport Information
Airport Details
Location
Runway Information
Flight Planning Tools
Nearby Airports
About Seattle–Tacoma International Airport
Overview
Seattle–Tacoma International Airport serves as a major aviation hub in the Pacific Northwest, located near Seattle, Washington. The airport operates with three substantial runways, including a primary 11,900-foot runway capable of handling large commercial and cargo aircraft. Situated at an elevation of 433 feet above mean sea level, the airport provides critical connectivity for the Puget Sound metropolitan region.
Flying Conditions
The airport's coastal location introduces variable weather conditions influenced by Pacific maritime systems, with significant seasonal variations in visibility and precipitation. Pilots should anticipate potential low cloud layers, especially during fall and winter months, which can impact approach and departure procedures. The airport's elevation and proximity to mountainous terrain can generate localized wind patterns that require careful navigation.
Notable Features
The airport features three parallel runways with varying lengths and surface compositions, offering multiple approach and departure options for different aircraft types. The primary runway (16L/34R) at 11,900 feet provides extensive operational flexibility for heavy aircraft and long-haul operations. Surrounding terrain includes coastal mountains and water bodies, which can create complex local meteorological conditions.
Approach Considerations
Runway selection typically depends on prevailing wind directions, with the parallel configuration allowing for efficient traffic management during different meteorological conditions. Pilots should carefully review current wind and weather reports, considering the potential for crosswind components and terrain-induced turbulence. The substantial runway lengths provide significant margins for various aircraft performance envelopes.
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.
Learn More
Recommended guides based on current conditions at KSEA
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.