Florida Keys Marathon International Airport (KMTH) Aviation Weather: METAR & TAF
As of 7:53 PM ET, Oct 28, KMTH is currently VFR with winds from 050° at 7 knots, visibility 10+ statute miles, and no ceiling reported.
Live aviation weather for Florida Keys Marathon International Airport in Marathon, FL, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter and runway crosswinds.
Florida Keys Marathon International Airport (KMTH) is a regional airport serving Marathon, FL at a field elevation of 7 ft. KMTH reports its own METAR and publishes a TAF, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. It has one runway (07/25), the longest 5,008 ft. The official FAA airport diagram is at the bottom of the page.
Wind from the northeast (050°) at 7 kt, visibility 10+ statute miles, no cloud data, temperature 27°C (81°F), altimeter 29.90 inHg. Conditions are Visual Flight Rules (VFR).
METAR KMTH 282353Z AUTO 05007KT 10SM CLR 27/24 A2990 RMK AO2 SLP123 T02720244 10300 20272 53013
What changed at KMTH?
Since the 2253Z (6:53 PM EDT) report, compared automatically against the latest METAR.
- Pressure rising: altimeter 29.88 → 29.90 inHg.
Current pilot readout for KMTH
KMTH is currently VFR with winds from 050° at 7 knots, visibility 10+ statute miles, and no ceiling reported. the wind favors runway ends 07. Density altitude is approximately 1,500 ft (field elevation 7 ft). Review the latest TAF below for forecast changes before departure.
KMTH by the numbers
What the long-run records say about flying here, computed for this airport alone.
KMTH reported VFR in 94% of daylight observations over 20 years, about 294 flyable days a year. April is the most reliable month and January the least, with IFR or worse 3% of the time. When conditions drop it is usually a mix of low ceilings (under 1,000 ft under 1% of hours) and low visibility (under 3 miles 1%).
Over 20 years of hourly winds, runway 07 had the best headwind 79% of the time, runway 25 21%, and winds were calm 14% of hours. Winds most often blow from the east. Crosswind on the best available runway topped 15 kt in 1% of hours.
Thunderstorms were reported on about 70 days a year. 59% of storm hours fall in July, August and September, peaking in August when storms were in the air 3% of the time.
Field elevation is 7 ft, but on a median summer afternoon the air performs like 1,862 ft, 1,855 ft higher. Plan for a longer takeoff roll and a weaker climb from June to August.
Gusts showed up in 19% of hours, typically 8 kt above the steady wind, and the strongest credible gust on record was 62 kt. November is the windiest month (mean 8 kt) and July the calmest.
Sources: hourly observations 2006 to 2025 and the per-runway wind climatology 2006 to 2025. 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 →
Runway wind check
Estimated head/tailwind and crosswind for each runway end from the current reported wind.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 07FAV | 5,008 ft | ASP | 7 kt head | 2 kt left |
| 25 | 5,008 ft | ASP | 7 kt tail | 2 kt right |
Open the crosswind calculator to try your own wind and runway numbers →
KMTH runways
1 physical runway · 2 runway ends. Each card opens the runway's intelligence page: equipment and lighting, LAHSO, frequencies, today's configuration, predicted use, history and approaches.
- Status not monitoredRunway 07/255,008 × 100 ft · ASPCurrent useno stated-runway source at KMTHWind
- 07
- 7 kt headwind · 2 kt crosswind from left
- 25
- 7 kt tailwind · 2 kt crosswind from right
no active equipment NOTAM receivedView Runway Intelligence →
“Current use” is what the facilitystates; 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.
Fuel at KMTH
100LL and Jet A at Florida Keys Marathon International Airport: prices, FBO fees and cheaper fuel nearby now live on the KMTH fuel page.
Lowest 100LL
$10.23/ galSelf serve · Million Air Florida Keys
Guaranteed price, checked Oct 26Current
1 fuel provider · Jet A from $11.59
Fuel information has moved: view KMTHfuel & FBOs for every FBO’s prices, ramp and overnight fees, cheaper 100LL nearby, price history and pilot fuel reports.
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 12→7 kt, ceiling unlimited → unlimited.
KMTH 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 KMTH
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
FLL UA /OV FLL270006/TM 0019/FL018/TP B39M/WX VMC/TB SMOOTH
FLL UAHeader: reporting station and UA: a routine pilot report.OV FLL270006Location: fix or navaid, optionally with a radial and distance in NM.TM 0019Reported at 00:19 UTC.FL018Altitude: 1,800 ft MSL.TP B39MAircraft type reporting.WX VMCWeather and flight visibility observed.TB SMOOTHTurbulence: smooth.Show raw report
MIA UA /OV ZBV190048/TM 2327/FL380/TP A20N/TB NEG
MIA UAHeader: reporting station and UA: a routine pilot report.OV ZBV190048Location: fix or navaid, optionally with a radial and distance in NM.TM 2327Reported at 23:27 UTC.FL380Altitude: 38,000 ft MSL.TP A20NAircraft type reporting.TB NEGTurbulence: none reported.Show raw report
FLL UA /OV FLL270009/TM 2310/FL025/TP B752/WX CLR/TB SMOOTH
FLL UAHeader: reporting station and UA: a routine pilot report.OV FLL270009Location: fix or navaid, optionally with a radial and distance in NM.TM 2310Reported at 23:10 UTC.FL025Altitude: 2,500 ft MSL.TP B752Aircraft type reporting.WX CLRWeather and flight visibility observed.TB SMOOTHTurbulence: smooth.Show raw report
FLL UA /OV FLL270000/TM 2208/FL000/TP A320/TB SMOOTH/RM AIRCRAFT LANDED AND REPORTED SMOOTH
FLL UAHeader: reporting station and UA: a routine pilot report.OV FLL270000Location: fix or navaid, optionally with a radial and distance in NM.TM 2208Reported at 22:08 UTC.FL000Altitude: 0 ft MSL.TP A320Aircraft type reporting.TB SMOOTHTurbulence: smooth.RM AIRCRAFT LANDED AND REPOR…Remarks.Show raw report
FXE UA /OV FXE270004/TM 2152/FL012/TP C550/SK SKC
FXE UAHeader: reporting station and UA: a routine pilot report.OV FXE270004Location: fix or navaid, optionally with a radial and distance in NM.TM 2152Reported at 21:52 UTC.FL012Altitude: 1,200 ft MSL.TP C550Aircraft type reporting.SK SKCSky condition: cloud bases and tops in hundreds of feet MSL.Show raw report
FLL UA /OV FLL270005/TM 2113/FL018/TP A321/WX CLR
FLL UAHeader: reporting station and UA: a routine pilot report.OV FLL270005Location: fix or navaid, optionally with a radial and distance in NM.TM 2113Reported at 21:13 UTC.FL018Altitude: 1,800 ft MSL.TP A321Aircraft type reporting.WX CLRWeather and flight visibility observed.Show raw report
FLL UA /OV FLL270008/TM 2058/FL026/TP A320/RM SMOOTH
FLL UAHeader: reporting station and UA: a routine pilot report.OV FLL270008Location: fix or navaid, optionally with a radial and distance in NM.TM 2058Reported at 20:58 UTC.FL026Altitude: 2,600 ft MSL.TP A320Aircraft type reporting.RM SMOOTHRemarks.Show raw report
FXE UA /OV FXE27006/TM 2046/FL020/TP HDJT/SK SCT022
FXE UAHeader: reporting station and UA: a routine pilot report.OV FXE27006Location: fix or navaid, optionally with a radial and distance in NM.TM 2046Reported at 20:46 UTC.FL020Altitude: 2,000 ft MSL.TP HDJTAircraft type reporting.SK SCT022Sky condition: cloud bases and tops in hundreds of feet MSL.⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.
Recent aviation weather trends at KMTH
From ATIS Alerts' hourly weather history.
Over the past 24 hours, KMTH reported a mix of conditions, most often VFR across 40 observations, with 15 flight-category changes. The strongest gust reached 26 kt, the lowest ceiling was 500 ft. Wind most often came from the N.
Most recent change: MVFR → VFR
Most recent change: MVFR → VFR
Share of hours each runway had the most headwind. From wind reports, not ATC assignments.
- 07
- 95%
- 25
- 5%
TAF | Terminal Aerodrome Forecast
Issued 2322Z (7:22 PM EDT)
TAF KMTH 282322Z 2900/2924 05006KT P6SM SCT020
New to TAFs? How to read one →
Get KMTH weather alerts in Telegram
Stop refreshing aviation weather manually. Track KMTH in ATIS Alerts and get notified when a new METAR changes the picture: a category drop, or wind and ceiling moving toward your minimums.
Track KMTH free on TelegramLive KMTH Weather
Live crosswind meter
Measured by KMTH's own weather station.
Wind is 17° off runway 07, the end with the most headwind right now.
Asphalt · 5,008 ft. Headings from FAA runway data. Not for navigation.
Field aerial
North up
Runway 07/25 drawn from FAA threshold coordinates.
Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit
Fuel prices
KMTH 100LL, FBOs and fees.
100LL from
$10.23 / gal · Self serve
1 fuel provider · Guaranteed price, checked Oct 26
View fuel prices & FBOs →Airport info
From the FAA airport record (cycle 2026-10-01) and OurAirports.
Services
- Fuel
- 100LL · Jet A-1+ See fuel prices →
- Attended
- Daily 0800-1800 local
- Repairs
- Airframe & engine, minor
- Oxygen
- Bottled, high & low pressure · Bulk, high & low pressure
- Transient parking
- Tie-downs
- Landing fee
- No
- Other services
- Crop dusting · Flight instruction · Aircraft rental · Aircraft sales
- Control tower
- None
- Wind indicator
- Lighted
Airport
- Type
- Regional airport
- ICAO
- KMTH
- IATA
- MTH
- FAA LID
- MTH
- City
- Marathon
- State
- Florida
- Country
- United States
- Elevation
- 7 ft
- Coordinates
- 24.7260, -81.0514
- Runways
- 1 physical runway · 2 runway ends
- Longest runway
- 5,008 ft
- Weather reporting
- Reports METAR
- TAF
- Published
- AWOS/ASOS
- 135.525 MHz
- Time zone
- America/New_York
- Next sunset
- 22h 7m
Run a flight school, FBO, or club here? Embed KMTH'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
2 airports25–50 NM
6 airports50–100 NM
8 airports+2 more within 100 NM
Historical Flying Weather at KMTH
2006–2025 · ATIS Alerts Flying Weather Index
Based on historical observations from 2006–2025, KMTH reported VFR conditions during about 93.6% of valid daylight observations, with an estimated 294 VFR flying days a year. April had the most VFR weather; January had the most instrument conditions. Surface winds averaged 7.0 kt, calm 7.0% of the time.
Full historical breakdown
Flight category by month
| Month | VFR % | MVFR % | IFR % | LIFR % |
|---|---|---|---|---|
| Jan | 90.5 | 7.0 | 1.9 | 0.7 |
| Feb | 92.5 | 6.2 | 0.9 | 0.4 |
| Mar | 95.1 | 4.5 | 0.3 | 0.0 |
| Apr | 95.4 | 4.2 | 0.3 | 0.1 |
| May | 93.9 | 5.3 | 0.7 | 0.1 |
| Jun | 94.1 | 5.3 | 0.6 | 0.1 |
| Jul | 95.4 | 4.0 | 0.5 | 0.2 |
| Aug | 95.2 | 4.0 | 0.6 | 0.2 |
| Sep | 94.5 | 4.7 | 0.7 | 0.1 |
| Oct | 93.9 | 5.2 | 0.8 | 0.1 |
| Nov | 94.6 | 4.7 | 0.6 | 0.1 |
| Dec | 92.8 | 5.8 | 1.2 | 0.2 |
Average wind by month
| Month | Mean wind (kt) |
|---|---|
| Jan | 7.6 kt |
| Feb | 7.3 kt |
| Mar | 7.9 kt |
| Apr | 7.8 kt |
| May | 6.9 kt |
| Jun | 6.0 kt |
| Jul | 5.5 kt |
| Aug | 5.7 kt |
| Sep | 5.7 kt |
| Oct | 7.7 kt |
| Nov | 8.1 kt |
| Dec | 7.5 kt |
Historical summary of past observations: not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.
KMTH 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 MTH shirt or mug
MTH's real runway layout on the back, elevation and tower frequency on the front. Add your tail number on the sleeve.
Pilot PIREPs for Florida Keys Marathon International Airport (KMTH)
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 Florida Keys Marathon 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 KMTH 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.
No D-ATIS at this airport, showing METAR.
Spotted incorrect airport info? ✏️ Suggest an edit