Seattle–Tacoma International Airport (KSEA) Aviation Weather: METAR, TAF & ATIS
As of 10:53 PM PDT, Oct 27, KSEA is currently MVFR with winds from 180° at 10 knots gusting 17, visibility 10+ statute miles, and a 2,500 ft ceiling. The FAA lists no ground stop or delay program for KSEA right now.
Live aviation weather for Seattle–Tacoma International Airport in Seattle, WA, including METAR, TAF, ATIS, flight category, wind, visibility, ceiling, altimeter and runway crosswinds.
Seattle–Tacoma International Airport (KSEA) is one of the primary air-carrier airports serving Seattle, WA at a field elevation of 432 ft. KSEA reports its own METAR and publishes a TAF, and broadcasts digital ATIS (D-ATIS), decoded live on this page as flight category, wind, visibility, ceiling and altimeter. It has 3 physical runways (16C/34C, 16L/34R, 16R/34L), the longest 11,901 ft. The official FAA airport diagram is at the bottom of the page.
Wind from the south (180°) at 10 kt, gusting 17 kt, visibility 10+ statute miles, broken clouds at 2,500 ft, broken clouds at 4,000 ft, overcast at 4,700 ft, temperature 9°C (49°F), altimeter 29.90 inHg. Conditions are Marginal VFR (MVFR), ceiling 2,500 ft.
METAR KSEA 280553Z 18010G17KT 10SM -RA BKN025 BKN040 OVC047 09/06 A2990 RMK AO2 RAB29 SLP133 P0000 60000 T00940056 10122 20094 58006 $
Current runway configuration at KSEA
As stated by the facility — not an estimate. Tap a runway for its intelligence page.
Updated 2 min ago (0653Z / 11:53 PM PDT)
This configuration has been stated since 0527Z (10:27 PM PDT).
What changed at KSEA?
Since the 0539Z (10:39 PM PDT) report, compared automatically against the latest METAR.
- Flight category dropped from VFR to MVFR.
- Gusts began, now gusting 17 kt.
- Ceiling dropped from 4,000 ft to 2,500 ft.
Current pilot readout for KSEA
KSEA is currently MVFR with winds from 180° at 10 knots gusting 17, visibility 10+ statute miles, and a 2,500 ft ceiling. The tower TFDM states arrivals on runway 16L, 16R and 16C and departures on runway 16L; crosswind on the active runways is approximately 0 kt; the wind favors south-facing runway ends (16C, 16L, 16R). Density altitude is approximately -100 ft (field elevation 432 ft). Review the latest TAF below for forecast changes before departure.
KSEA by the numbers
What the long-run records say about flying here, computed for this airport alone.
The FAA issued 24 ground stops and 42 ground delay programs for SEA between October 2025 and October 2026, affecting 53 days. Runway or taxiway work was the most common reason (23 of 66). A typical ground stop lasted about 1 h 13 min.
KSEA reported VFR in 74% of daylight observations over 20 years, about 235 flyable days a year. July is the most reliable month and January the least, with IFR or worse 16% of the time. When conditions drop it is usually low ceilings rather than fog (ceilings under 1,000 ft 6% of hours, visibility under 3 miles 4%).
Over 20 years of hourly winds, the south-facing ends (16C, 16L, 16R) had the best headwind 63% of the time, the north-facing ends (34C, 34L, 34R) 37%, and winds were calm 12% of hours. Winds most often blow from the south. Crosswind on the best available runway topped 15 kt in under 1% of hours.
Snow fell on about 12 days a year and freezing rain or drizzle on 1. From December to February KSEA was IFR or worse 13% of the time, against 5% from June to August.
SEA departures left within 15 minutes of schedule 79% of the time across 165,477 flights, June 2025 to May 2026. Before 9 AM departures did best (89%) and after 9 PM did worst (74%).
Over the last 30 days of recorded D-ATIS broadcasts, KSEA ran south flow 55% of the time and north flow 45%. Runway 16R was named for arrivals most often (53% of recorded hours), and the configuration changed 58 times.
Sources: FAA ATCSCC advisories, hourly observations 2006 to 2025, the per-runway wind climatology 2006 to 2025, BTS airline on-time data and recorded runway configurations. Historical summaries, not a forecast: check the current METAR, TAF and a briefing before flight.
New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →
D-ATIS
Digital Automatic Terminal Information Service, the live broadcast.
SEA ATIS INFO G 0653Z. 15013KT 10SM SCT023 BKN036 OVC044 08/06 A2988 (TWO NINER EIGHT EIGHT). ILS AND CHARTED VISUAL APPROACH RWYS 16R AND 16L , APCH IN USE. DEPG RWY 16L. SIMUL APCHS IN USE, BFI & SEA. TRAFFIC BELOW YOU ON FINAL. SIMUL APCHS IN USE TO PARA RYS. NOTAMS... RY 16C CLSD. TWY E CLSD BTN RWY, 16L AND TWY T, TWY D, F, K CLSD, TWY H CLSD BTN RWY 16C AND TWY J. TWY Q CLSD BTN RWY 16L AND TWY T. LOW LEVEL WIND SHEAR PILOTS REPORT GAINS AND LOSSES 10 KNOTS ON FINAL APCH ADZYS IN EFFECT. BIRD ACTIVITY VICINITY ARPT. APCH AND DEP PATHS ARE OVER NOISE SENSITIVE AREAS. ...ADVS YOU HAVE INFO G.
Runway wind check
Estimated head/tailwind and crosswind for each runway end from the current reported wind.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 16CFAV | 9,426 ft | PEM | 10 kt head | 0 kt |
| 16L | 11,901 ft | PEM | 10 kt head | 0 kt |
| 16R | 8,500 ft | PEM | 10 kt head | 0 kt |
| 34C | 9,426 ft | PEM | 10 kt tail | 0 kt |
| 34L | 8,500 ft | PEM | 10 kt tail | 0 kt |
| 34R | 11,901 ft | PEM | 10 kt tail | 0 kt |
Open the crosswind calculator to try your own wind and runway numbers →
KSEA runways
3 physical runways · 6 runway ends. Each card opens the runway's intelligence page: equipment and lighting, LAHSO, frequencies, today's configuration, predicted use, history and approaches.
- Closed (D-ATIS)Runway 16C/34C9,426 × 150 ft · PEMCurrent use16CARRIVALSWind
- 16C
- 10 kt headwind · 0 kt crosswind
- 34C
- 10 kt tailwind · 0 kt crosswind
no active equipment NOTAM receivedView Runway Intelligence → - No closure reportedRunway 16L/34R11,901 × 150 ft · PEMCurrent use16LARR/DEPWind
- 16L
- 10 kt headwind · 0 kt crosswind
- 34R
- 10 kt tailwind · 0 kt crosswind
no active equipment NOTAM receivedView Runway Intelligence → - No closure reportedRunway 16R/34L8,500 × 150 ft · PEMCurrent use16RARRIVALSWind
- 16R
- 10 kt headwind · 0 kt crosswind
- 34L
- 10 kt tailwind · 0 kt crosswind
no active equipment NOTAM receivedView Runway Intelligence →
“Current use” is what the tower TFDM configurationstates; wind components are arithmetic on the current METAR against TRUE headings; status reflects NOTAMs received through SWIM, the tower's TFDM record and the D-ATIS — a runway reads “Open” only with a complete NOTAM picture.
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 22 h: wind 4→10 kt, ceiling 7,000 ft → 2,500 ft.
KSEA weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap
NOAA NEXRAD composite and lightning, updated about every five minutes; amber frames are HRRR model guidance, not observed radar. Not for navigation.
Pilot reports (PIREPs) within 100 NM of KSEA
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
SEA UA /OV SEA070035/TM 0632/FL200/TP A21N/TA M03/TB NEG/IC LGT RIME 070-180/RM DURC-ZSE
SEA UAHeader: reporting station and UA: a routine pilot report.OV SEA070035Location: fix or navaid, optionally with a radial and distance in NM.TM 0632Reported at 06:32 UTC.FL200Altitude: 20,000 ft MSL.TP A21NAircraft type reporting.TA M03Outside air temperature, °C.TB NEGTurbulence: none reported.IC LGT RIME 070-180Icing: light rime 7,000–18,000 ft.RM DURC-ZSERemarks.Show raw report
PDX UA /OV BTG005030/TM 0625/FL140/TP E75L/TB LGT-MOD CHOP 190-140/RM ZSE
PDX UAHeader: reporting station and UA: a routine pilot report.OV BTG005030Location: fix or navaid, optionally with a radial and distance in NM.TM 0625Reported at 06:25 UTC.FL140Altitude: 14,000 ft MSL.TP E75LAircraft type reporting.TB LGT-MOD CHOP 190-140Turbulence: light to moderate chop 19,000–14,000 ft.RM ZSERemarks.Show raw report
SEA UA /OV SEA210008/TM 0619/FL90/TP E75L/SK BASES 50 TOPS 100/TB LT RIME
SEA UAHeader: reporting station and UA: a routine pilot report.OV SEA210008Location: fix or navaid, optionally with a radial and distance in NM.TM 0619Reported at 06:19 UTC.FL90Altitude: hundreds of feet MSL. UNKN = unknown; DURC/DURD = during climb/descent.TP E75LAircraft type reporting.SK BASES 50 TOPS 100Sky condition: cloud bases and tops in hundreds of feet MSL.TB LT RIMETurbulence: lt rime.Show raw report
SEA UA /OV SEA198011/TM 0522/FL110/TP B738/TA M9/IC MOD RIME 170-080/RM DURD HAWKZ
SEA UAHeader: reporting station and UA: a routine pilot report.OV SEA198011Location: fix or navaid, optionally with a radial and distance in NM.TM 0522Reported at 05:22 UTC.FL110Altitude: 11,000 ft MSL.TP B738Aircraft type reporting.TA M9Outside air temperature, °C.IC MOD RIME 170-080Icing: moderate rime 17,000–8,000 ft.RM DURD HAWKZRemarks.Show raw report
SEA UA /OV SEA110007/TM 0520/FL110/TP B38M/TA M1/IC LGT RIME 160-090/RM DURD CHINS
SEA UAHeader: reporting station and UA: a routine pilot report.OV SEA110007Location: fix or navaid, optionally with a radial and distance in NM.TM 0520Reported at 05:20 UTC.FL110Altitude: 11,000 ft MSL.TP B38MAircraft type reporting.TA M1Outside air temperature, °C.IC LGT RIME 160-090Icing: light rime 16,000–9,000 ft.RM DURD CHINSRemarks.Show raw report
SEA UA /OV SEA161005/TM 0505/FL032/TP B738/SK BKN 032 CLR 060/RM BASES 032 TOPS 060
SEA UAHeader: reporting station and UA: a routine pilot report.OV SEA161005Location: fix or navaid, optionally with a radial and distance in NM.TM 0505Reported at 05:05 UTC.FL032Altitude: 3,200 ft MSL.TP B738Aircraft type reporting.SK BKN 032 CLR 060Sky condition: cloud bases and tops in hundreds of feet MSL.RM BASES 032 TOPS 060Remarks.Show raw report
SEA UA /OV SEA300050/TM 0451/FL140/TP KC35/IC MOD RIME 140/RM JAWBN ARR /ZSE
SEA UAHeader: reporting station and UA: a routine pilot report.OV SEA300050Location: fix or navaid, optionally with a radial and distance in NM.TM 0451Reported at 04:51 UTC.FL140Altitude: 14,000 ft MSL.TP KC35Aircraft type reporting.IC MOD RIME 140Icing: moderate rime 140.RM JAWBN ARR /ZSERemarks.Show raw report
SEA UA /OV SEA201038/TM 0432/FL100/TP PC12/TA -05/TB LGT TURB/IC LGT RIME /RM DURD OLM 100-075
SEA UAHeader: reporting station and UA: a routine pilot report.OV SEA201038Location: fix or navaid, optionally with a radial and distance in NM.TM 0432Reported at 04:32 UTC.FL100Altitude: 10,000 ft MSL.TP PC12Aircraft type reporting.TA -05Outside air temperature, °C.TB LGT TURBTurbulence: light turb.IC LGT RIMEIcing: light rime.RM DURD OLM 100-075Remarks.⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.
Recent aviation weather trends at KSEA
From ATIS Alerts' hourly weather history.
Over the past 24 hours, KSEA reported a mix of conditions, most often marginal VFR across 34 observations, with 10 flight-category changes. The strongest gust reached 24 kt, the lowest ceiling was 600 ft. Wind most often came from the S.
Most recent change: VFR → MVFR
Most recent change: VFR → MVFR
Share of hours each runway had the most headwind. From wind reports, not ATC assignments.
- 34C/34L/34R
- 61%
- 16C/16L/16R
- 39%
TAF | Terminal Aerodrome Forecast
Issued 0520Z (10:20 PM PDT)
TAF KSEA 280520Z 2806/2912 20011G20KT P6SM -RA BKN025 OVC035 FM281200 20010G18KT P6SM VCSH BKN020 OVC035 FM282100 20010KT P6SM VCSH BKN040 FM290600 18006KT P6SM VCSH OVC045
New to TAFs? How to read one →
Get KSEA weather alerts in Telegram
Stop refreshing aviation weather manually. Track KSEA in ATIS Alerts and get notified when the ATIS changes, the airport drops below VFR, or wind and ceiling conditions move closer to your minimums.
Track KSEA free on TelegramLive KSEA Weather
Live crosswind meter
Measured by KSEA's own weather station.
Wind is 0° off runway 16L, the runway in use per the tower.
Concrete · 11,901 ft. Headings from FAA runway data. Not for navigation.
Field aerial
North up
Runway 16C/34C, 16L/34R, 16R/34L drawn from FAA threshold coordinates.
Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit
Airport info
From the FAA airport record (cycle 2026-10-01) and OurAirports.
Services
- Fuel
- Jet A · Jet A-1
- Attended
- 24 hours
- Transient parking
- Tie-downs
- Landing fee
- Yes
- Other services
- Air freight · Cargo handling · Charter
- Control tower
- Yes
- Runway lights
- Sunset to sunrise
- Wind indicator
- Lighted
Airport
- Type
- Large airport
- ICAO
- KSEA
- IATA
- SEA
- FAA LID
- SEA
- City
- Seattle
- State
- Washington
- Country
- United States
- Elevation
- 432 ft
- Coordinates
- 47.4479, -122.3103
- Runways
- 3 physical runways · 6 runway ends
- Longest runway
- 11,901 ft
- Weather reporting
- METAR · D-ATIS
- TAF
- Published
- CTAF
- 118.5 MHz
- Time zone
- America/Los_Angeles
- Next sunset
- 18h 5m
Is there a ground stop at SEA today? Delay status and history →
Run a flight school, FBO, or club here? Embed KSEA's live status on your website, free →
Nearby airports
Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.
Within 25 NM
8 airports+2 more within 25 NM
25–50 NM
8 airports+2 more within 50 NM
50–100 NM
8 airports+2 more within 100 NM
RC flying fields nearby
AMA model-aircraft club fields around this airport: live wind, crosswind & flyability on each page.
- The Museum of Flight , Seattle, WA · 5 mi
- Lake Sawyer Hawks - Lake Washington Blvd , Seattle, WA · 8 mi
- Vashon Island Modelers 1 , Seattle, WA · 9 mi
Historical Flying Weather at KSEA
2006–2025 · ATIS Alerts Flying Weather Index
Based on historical observations from 2006–2025, KSEA reported VFR conditions during about 73.9% of valid daylight observations, with an estimated 235 VFR flying days a year. July had the most VFR weather; January had the most instrument conditions. Surface winds averaged 6.7 kt, calm 9.3% of the time.
Full historical breakdown
Flight category by month
| Month | VFR % | MVFR % | IFR % | LIFR % |
|---|---|---|---|---|
| Jan | 59.5 | 24.7 | 6.8 | 9.0 |
| Feb | 63.9 | 26.3 | 5.9 | 3.9 |
| Mar | 73.3 | 21.3 | 3.6 | 1.8 |
| Apr | 77.6 | 18.9 | 2.6 | 0.9 |
| May | 78.8 | 16.8 | 3.2 | 1.2 |
| Jun | 79.6 | 16.1 | 3.1 | 1.2 |
| Jul | 84.0 | 11.3 | 3.0 | 1.8 |
| Aug | 81.6 | 13.8 | 2.8 | 1.7 |
| Sep | 78.4 | 14.4 | 4.4 | 2.8 |
| Oct | 71.1 | 17.9 | 5.4 | 5.5 |
| Nov | 66.6 | 23.3 | 5.5 | 4.7 |
| Dec | 60.1 | 26.2 | 7.3 | 6.3 |
Average wind by month
| Month | Mean wind (kt) |
|---|---|
| Jan | 6.9 kt |
| Feb | 7.4 kt |
| Mar | 7.3 kt |
| Apr | 7.2 kt |
| May | 6.5 kt |
| Jun | 6.5 kt |
| Jul | 6.1 kt |
| Aug | 5.8 kt |
| Sep | 5.8 kt |
| Oct | 6.2 kt |
| Nov | 7.2 kt |
| Dec | 7.2 kt |
Historical summary of past observations: not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.
KSEA airport diagram
Official FAA taxiway and runway layout. Tap to zoom.
Official FAA airport diagram · d-TPP cycle 2611 · Not for navigation. Download the official FAA PDF ↗
Customize your SEA shirt or mug
SEA's real runway layout on the back, elevation and tower frequency on the front. Add your tail number on the sleeve.
Pilot PIREPs for Seattle–Tacoma International Airport (KSEA)
Community-submittedCommunity-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.
Read recent community-submitted pilot notes for Seattle–Tacoma International Airport, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.
⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.
No Pilot PIREPs have been submitted for KSEA yet. Recently flew here? Help the next pilot by leaving a quick airport note.
Pilot PIREPs are community pilot notes for situational awareness only, not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.
⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
Spotted incorrect airport info? ✏️ Suggest an edit
How ATIS Alerts works · All US airports · Washington airports