San Marcos Regional Airport (KHYI) Aviation Weather: METAR
As of 10:56 AM CDT, Oct 27, KHYI is currently VFR with winds from 180° at 5 knots, visibility 10+ statute miles, and a 10,000 ft ceiling.
Live aviation weather for San Marcos Regional Airport in San Marcos, TX, including METAR, flight category, wind, visibility, ceiling, altimeter and runway crosswinds.
San Marcos Regional Airport (KHYI) is a regional airport serving San Marcos, TX at a field elevation of 595 ft. KHYI reports its own METAR, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. It has 3 physical runways (08/26, 13/31, 17/35), the longest 6,330 ft. The official FAA airport diagram is at the bottom of the page.
Wind from the south (180°) at 5 kt, visibility 10+ statute miles, broken clouds at 10,000 ft, temperature 23°C (74°F), altimeter 30.22 inHg. Conditions are Visual Flight Rules (VFR), ceiling 10,000 ft.
METAR KHYI 271556Z 18005KT 10SM BKN100 23/16 A3022 RMK AO2 SLP228 T02330156 $
Current pilot readout for KHYI
KHYI is currently VFR with winds from 180° at 5 knots, visibility 10+ statute miles, and a 10,000 ft ceiling. the wind favors south-facing runway ends (17). Density altitude is approximately 1,350 ft (field elevation 595 ft). KHYI does not publish a TAF. The nearest TAF station is KAUS, about 21 nm away.
KHYI by the numbers
What the long-run records say about flying here, computed for this airport alone.
KHYI reported VFR in 76% of daylight observations over 20 years, about 260 flyable days a year. August is the most reliable month and February 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 8% of hours, visibility under 3 miles 3%).
Over 20 years of hourly winds, runway 17 had the best headwind 38% of the time, runway 35 25%, 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.
Thunderstorms were reported on about 42 days a year. 45% of storm hours fall in April, May and July, peaking in May when storms were in the air 2% of the time.
Fog was reported on about 24 days a year, and fog or mist on 96. February and March are the foggiest months, with fog in 8% of hours, against 1% in August.
Field elevation is 595 ft, but on a median summer afternoon the air performs like 2,999 ft, 2,404 ft higher. Plan for a longer takeoff roll and a weaker climb from June to August.
Gusts showed up in 15% of hours, typically 6 kt above the steady wind, and the strongest credible gust on record was 68 kt. March is the windiest month (mean 9 kt) and September 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 |
|---|---|---|---|---|
| 17FAV | 5,214 ft | ASP | 5 kt head | 0 kt |
| 13 | 5,601 ft | ASP | 3 kt head | 4 kt right |
| 08 | 6,330 ft | ASP | 0 kt head | 5 kt right |
| 26 | 6,330 ft | ASP | 0 kt head | 5 kt left |
| 31 | 5,601 ft | ASP | 3 kt tail | 4 kt left |
| 35 | 5,214 ft | ASP | 5 kt tail | 0 kt |
Open the crosswind calculator to try your own wind and runway numbers →
KHYI 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.
- Status not monitoredRunway 08/266,330 × 100 ft · ASPCurrent useno stated-runway source at KHYIWind
- 08
- 0 kt headwind · 5 kt crosswind from right
- 26
- 0 kt headwind · 5 kt crosswind from left
no active equipment NOTAM receivedView Runway Intelligence → - Status not monitoredRunway 13/315,601 × 100 ft · ASPCurrent useno stated-runway source at KHYIWind
- 13
- 3 kt headwind · 4 kt crosswind from right
- 31
- 3 kt tailwind · 4 kt crosswind from left
no active equipment NOTAM receivedView Runway Intelligence → - Status not monitoredRunway 17/355,214 × 100 ft · ASPCurrent useno stated-runway source at KHYIWind
- 17
- 5 kt headwind · 0 kt crosswind
- 35
- 5 kt tailwind · 0 kt crosswind
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.
KHYI 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 KHYI
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
SAT UA /OV 3 NW SAT/TM 1643/FLDURD/TP BE20/SK BASES 030
SAT UAHeader: reporting station and UA: a routine pilot report.OV 3 NW SATLocation: fix or navaid, optionally with a radial and distance in NM.TM 1643Reported at 16:43 UTC.FLDURDReported during descent.TP BE20Aircraft type reporting.SK BASES 030Sky condition: cloud bases and tops in hundreds of feet MSL.Show raw report
ERV UA /OV ERV/TM 1641/FL035/TP C172/SK BASE 035/RM ZHU
ERV UAHeader: reporting station and UA: a routine pilot report.OV ERVLocation: fix or navaid, optionally with a radial and distance in NM.TM 1641Reported at 16:41 UTC.FL035Altitude: 3,500 ft MSL.TP C172Aircraft type reporting.SK BASE 035Sky condition: cloud bases and tops in hundreds of feet MSL.RM ZHURemarks.Show raw report
CLL UA /OV TNV225030/TM 1625/FL190/TP B38M/TA M11/TB LGT CHOP/IC LGT RIME 190/RM ZHU
CLL UAHeader: reporting station and UA: a routine pilot report.OV TNV225030Location: fix or navaid, optionally with a radial and distance in NM.TM 1625Reported at 16:25 UTC.FL190Altitude: 19,000 ft MSL.TP B38MAircraft type reporting.TA M11Outside air temperature, °C.TB LGT CHOPTurbulence: light chop.IC LGT RIME 190Icing: light rime 190.RM ZHURemarks.Show raw report
VCT UA /OV KVCT/TM 1557/FL030/TP PC12/SK SCT 030/WX RA/RM ZHU
VCT UAHeader: reporting station and UA: a routine pilot report.OV KVCTLocation: fix or navaid, optionally with a radial and distance in NM.TM 1557Reported at 15:57 UTC.FL030Altitude: 3,000 ft MSL.TP PC12Aircraft type reporting.SK SCT 030Sky condition: cloud bases and tops in hundreds of feet MSL.WX RAWeather and flight visibility observed.RM ZHURemarks.Show raw report
VCT UA /OV 3W/TM 1555/FL030/TP PC12/SK BKN030/WX RA
VCT UAHeader: reporting station and UA: a routine pilot report.OV 3WLocation: fix or navaid, optionally with a radial and distance in NM.TM 1555Reported at 15:55 UTC.FL030Altitude: 3,000 ft MSL.TP PC12Aircraft type reporting.SK BKN030Sky condition: cloud bases and tops in hundreds of feet MSL.WX RAWeather and flight visibility observed.Show raw report
SAT UA /OV 5 NW SAT/TM 1551/FLDURD/TP B763/SK B-023
SAT UAHeader: reporting station and UA: a routine pilot report.OV 5 NW SATLocation: fix or navaid, optionally with a radial and distance in NM.TM 1551Reported at 15:51 UTC.FLDURDReported during descent.TP B763Aircraft type reporting.SK B-023Sky condition: cloud bases and tops in hundreds of feet MSL.Show raw report
SSF UA /OV SSF090002/TM 1534/FL016/TP SR22/SK BKN016-TOP020
SSF UAHeader: reporting station and UA: a routine pilot report.OV SSF090002Location: fix or navaid, optionally with a radial and distance in NM.TM 1534Reported at 15:34 UTC.FL016Altitude: 1,600 ft MSL.TP SR22Aircraft type reporting.SK BKN016-TOP020Sky condition: cloud bases and tops in hundreds of feet MSL.Show raw report
VCT UA /OV KVCT040035/TM 1518/FL130/TP C68A/TB MOD 130-100/RM NEG ICING ZHU
VCT UAHeader: reporting station and UA: a routine pilot report.OV KVCT040035Location: fix or navaid, optionally with a radial and distance in NM.TM 1518Reported at 15:18 UTC.FL130Altitude: 13,000 ft MSL.TP C68AAircraft type reporting.TB MOD 130-100Turbulence: moderate 13,000–10,000 ft.RM NEG ICING ZHURemarks.⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.
Recent aviation weather trends at KHYI
From ATIS Alerts' hourly weather history.
History is still being collected. Check back in a few days.
Most recent change: MVFR → VFR
Share of hours each runway had the most headwind. From wind reports, not ATC assignments.
- 35
- 38%
- 13
- 26%
- 17
- 18%
- 08
- 11%
- 31
- 6%
- 26
- 1%
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Live crosswind meter
Measured by KHYI's own weather station.
Wind is 2° off runway 17, the end with the most headwind right now.
Asphalt · 5,214 ft. Headings from FAA runway data. Not for navigation.
Field aerial
North up
Runway 08/26, 13/31, 17/35 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
- 100LL · Jet A+
- Attended
- Daily 0700-2100 local
- Repairs
- Airframe & engine, major
- Oxygen
- Bottled, low pressure
- Transient parking
- Tie-downs · Hangars
- Landing fee
- No
- Other services
- Avionics · Charter · Flight instruction · Aircraft rental · Aircraft sales
- Control tower
- Yes
- Wind indicator
- Lighted
Airport
- Type
- Regional airport
- ICAO
- KHYI
- FAA LID
- HYI
- City
- San Marcos
- State
- Texas
- Country
- United States
- Elevation
- 595 ft
- Coordinates
- 29.8927, -97.8630
- Runways
- 3 physical runways · 6 runway ends
- Longest runway
- 6,330 ft
- Weather reporting
- Reports METAR
- TAF
- Nearest KAUS
- AWOS/ASOS
- 120.825 MHz
- Time zone
- America/Chicago
- Sunset in
- 6h 54m
Run a flight school, FBO, or club here? Embed KHYI'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.
- Tri City Flyers, Inc - Old Kingsbury Aerodrome , Kingsbury, TX · 18 mi
- Hill Country Aeromodelers Inc - Mary Moore Searight Metropolitan Park , Austin, TX · 19 mi
- Tri City Flyers, Inc - USAF Auxilliary Airfield , Seguin, TX · 23 mi
Historical Flying Weather at KHYI
2006–2025 · ATIS Alerts Flying Weather Index
Based on historical observations from 2006–2025, KHYI reported VFR conditions during about 76.3% of valid daylight observations, with an estimated 260 VFR flying days a year. August had the most VFR weather; February had the most instrument conditions. Surface winds averaged 7.8 kt, calm 9.7% of the time.
Full historical breakdown
Flight category by month
| Month | VFR % | MVFR % | IFR % | LIFR % |
|---|---|---|---|---|
| Jan | 71.0 | 15.4 | 7.0 | 6.5 |
| Feb | 61.5 | 22.0 | 9.7 | 6.7 |
| Mar | 66.4 | 21.5 | 7.3 | 4.8 |
| Apr | 66.3 | 24.8 | 6.3 | 2.7 |
| May | 69.3 | 22.9 | 5.9 | 1.9 |
| Jun | 76.9 | 18.5 | 3.7 | 0.8 |
| Jul | 79.7 | 15.5 | 3.7 | 1.1 |
| Aug | 85.9 | 11.0 | 2.5 | 0.6 |
| Sep | 82.7 | 11.8 | 3.8 | 1.7 |
| Oct | 78.4 | 13.7 | 5.3 | 2.6 |
| Nov | 72.5 | 17.0 | 6.2 | 4.3 |
| Dec | 66.7 | 19.5 | 7.5 | 6.3 |
Average wind by month
| Month | Mean wind (kt) |
|---|---|
| Jan | 8.1 kt |
| Feb | 9.0 kt |
| Mar | 9.2 kt |
| Apr | 9.2 kt |
| May | 8.4 kt |
| Jun | 7.7 kt |
| Jul | 7.1 kt |
| Aug | 6.9 kt |
| Sep | 6.3 kt |
| Oct | 7.0 kt |
| Nov | 7.4 kt |
| Dec | 7.7 kt |
Historical summary of past observations: not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.
KHYI 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 HYI shirt or mug
HYI's real runway layout on the back, elevation and tower frequency on the front. Add your tail number on the sleeve.
Pilot PIREPs for San Marcos Regional Airport (KHYI)
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 San Marcos Regional 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 KHYI 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.
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