San Marcos Regional Airport (KHYI) Aviation Weather, METAR, TAF & ATIS Alerts
Live aviation weather for San Marcos Regional Airport in San Marcos, TX, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.
San Marcos Regional Airport (KHYI) is a regional airport serving San Marcos, TX at 597 ft. KHYI reports its own METAR, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 6 runways (08, 13, 17, 26), longest 6,330 ft, are checked against the current wind in the crosswind table below. The official FAA airport diagram is at the bottom of the page. Track KHYI in the ATIS Alerts Telegram bot to get a message when a new METAR changes the picture: flight category, wind, or ceiling past your selected minimums.
Wind from the south-southeast (150°) at 14 kt, visibility 10+ statute miles, no cloud data, temperature 33°C (92°F), altimeter 29.88 inHg. Conditions are Visual Flight Rules (VFR).
METAR KHYI 130056Z 15014KT 10SM CLR 33/22 A2988 RMK AO2 SLP108 T03330217
What changed at KHYI?
Since the 2356Z (6:56 PM CDT) report, compared automatically against the latest METAR.
- Gusts are no longer reported.
- Pressure rising: altimeter 29.86 → 29.88 inHg.
- Temperature down 3°C.
This is exactly what ATIS Alerts watches for you: get a Telegram message when KHYI's weather changes, free →
Current pilot readout for KHYI
KHYI is currently VFR with winds from 150° at 14 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 08, about 12 knots. Density altitude is approximately 3,000 ft (field elevation 597 ft). KHYI does not publish a TAF. The nearest TAF station is KAUS, about 21 nm away.
⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →
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Track KHYI free on TelegramRunway wind check
Estimated head/tailwind and crosswind for each runway end from the current reported wind.
Use this section to quickly compare current wind alignment across available runways at KHYI. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 13FAV | 5,601 ft | ASP | 13 kt head | 4 kt right |
| 17 | 5,214 ft | ASP | 12 kt head | 7 kt left |
| 08 | 6,330 ft | ASP | 7 kt head | 12 kt right |
| 26 | 6,330 ft | ASP | 7 kt tail | 12 kt left |
| 35 | 5,214 ft | ASP | 12 kt tail | 7 kt right |
| 31 | 5,601 ft | ASP | 13 kt tail | 4 kt left |
Open the crosswind calculator to try your own wind and runway numbers →
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 11→14 kt, ceiling unlimited → unlimited.
KHYI weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.
Live weather radar around San Marcos Regional Airport in San Marcos, TX: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around KHYI is headed.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap
Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. 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
CLL UA /OV CLL260018/TM 0107/FL236/TP B39M/TB NEG/RM SMOOTH ZHU
CLL UAHeader: reporting station and UA: a routine pilot report.OV CLL260018Location: fix or navaid, optionally with a radial and distance in NM.TM 0107Reported at 01:07 UTC.FL236Altitude: 23,600 ft MSL.TP B39MAircraft type reporting.TB NEGTurbulence: none reported.RM SMOOTH ZHURemarks.Show raw report
AUS UA /OV CWK345020/TM 0107/FL390/TP B738/TB NEG/RM SMOOTH ZHU
AUS UAHeader: reporting station and UA: a routine pilot report.OV CWK345020Location: fix or navaid, optionally with a radial and distance in NM.TM 0107Reported at 01:07 UTC.FL390Altitude: 39,000 ft MSL.TP B738Aircraft type reporting.TB NEGTurbulence: none reported.RM SMOOTH ZHURemarks.Show raw report
AUS UA /OV CWK000015/TM 0107/FL370/TP B38M/TB INTMT LGT CHOP/RM ZHU
AUS UAHeader: reporting station and UA: a routine pilot report.OV CWK000015Location: fix or navaid, optionally with a radial and distance in NM.TM 0107Reported at 01:07 UTC.FL370Altitude: 37,000 ft MSL.TP B38MAircraft type reporting.TB INTMT LGT CHOPTurbulence: intermittent light chop.RM ZHURemarks.Show raw report
CRP UA /OV CRP360060/TM 2228/FL360/TP A319/TB NEG/RM SMOOTH ZHU
CRP UAHeader: reporting station and UA: a routine pilot report.OV CRP360060Location: fix or navaid, optionally with a radial and distance in NM.TM 2228Reported at 22:28 UTC.FL360Altitude: 36,000 ft MSL.TP A319Aircraft type reporting.TB NEGTurbulence: none reported.RM SMOOTH ZHURemarks.Show raw report
GRK UA /OV AGJ200025/TM 2209/FL180/TP C750/SK TOP 180-200/TB NEG/RM ZHU
GRK UAHeader: reporting station and UA: a routine pilot report.OV AGJ200025Location: fix or navaid, optionally with a radial and distance in NM.TM 2209Reported at 22:09 UTC.FL180Altitude: 18,000 ft MSL.TP C750Aircraft type reporting.SK TOP 180-200Sky condition: cloud bases and tops in hundreds of feet MSL.TB NEGTurbulence: none reported.RM ZHURemarks.Show raw report
AUS UA /OV CWK120040/TM 2205/FL240/TP E75L/TB NEG/RM ZHU
AUS UAHeader: reporting station and UA: a routine pilot report.OV CWK120040Location: fix or navaid, optionally with a radial and distance in NM.TM 2205Reported at 22:05 UTC.FL240Altitude: 24,000 ft MSL.TP E75LAircraft type reporting.TB NEGTurbulence: none reported.RM ZHURemarks.Show raw report
IAH UA /OV 26R/TM 2135/FL035/TP C172/SK BASE 048/RM ZHU
IAH UAHeader: reporting station and UA: a routine pilot report.OV 26RLocation: fix or navaid, optionally with a radial and distance in NM.TM 2135Reported at 21:35 UTC.FL035Altitude: 3,500 ft MSL.TP C172Aircraft type reporting.SK BASE 048Sky condition: cloud bases and tops in hundreds of feet MSL.RM ZHURemarks.Show raw report
SAT UA /OV SAT075022/TM 2055/FL020/TP C172/RM LIGHT PRECIPITATION OVER BAZ AIRPORT
SAT UAHeader: reporting station and UA: a routine pilot report.OV SAT075022Location: fix or navaid, optionally with a radial and distance in NM.TM 2055Reported at 20:55 UTC.FL020Altitude: 2,000 ft MSL.TP C172Aircraft type reporting.RM LIGHT PRECIPITATION OVER …Remarks.⚠️ 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.
Over the past 24 hours, KHYI reported mostly VFR across 36 observations, with 6 flight-category changes. The strongest gust reached 21 kt, the lowest ceiling was 1,200 ft. Wind most often came from the S.
Most recent change: MVFR → VFR
Most recent change: MVFR → VFR
- 17
- 63%
- 13
- 26%
- 08
- 5%
- 26
- 5%
- 31
- 1%
- 35
- 0%
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Airport facts
Reference data from the OurAirports dataset.
- Type
- Regional airport
- ICAO
- KHYI
- FAA LID
- HYI
- City
- San Marcos
- State
- Texas
- Country
- United States
- Elevation
- 597 ft
- Coordinates
- 29.8927, -97.8630
- Runways
- 6
- Longest runway
- 6,330 ft
- Weather reporting
- Reports METAR
- TAF
- Nearest KAUS
- AWOS/ASOS
- 120.825 MHz
- Time zone
- America/Chicago
- Next sunset
- 23h 26m
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.
The FAA airport diagram for San Marcos Regional Airport in San Marcos, TX shows the runway and taxiway layout across 6 runways, ramp areas, and hold-short positions. Review it before taxiing at an unfamiliar field.
Official FAA airport diagram · d-TPP cycle 2610 · Not for navigation. Download the official FAA PDF ↗
KHYI weather: frequently asked
What runways are available at KHYI?+
KHYI has 6 runways: 08, 13, 17, 26, 31, 35; the longest is 6,330 ft. This page computes the live crosswind for each runway end from the current wind.
Does KHYI report its own weather?+
Yes. San Marcos Regional Airport has its own weather station and publishes METAR observations, which this page decodes live.
Does KHYI have a TAF?+
No. KHYI does not publish its own TAF. The nearest TAF station is KAUS, about 21 nm away.
Does KHYI broadcast D-ATIS?+
No. KHYI does not broadcast D-ATIS. Alerts for KHYI from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR instead.
Where can I find the KHYI airport diagram?+
The official FAA airport diagram for San Marcos Regional Airport (KHYI) is shown on this page. It maps the runway and taxiway layout, ramps, and hold-short lines. Tap it to zoom, or download the official FAA PDF free from the link under the diagram (updated every 28-day FAA charting cycle).
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.
Why pilots use ATIS Alerts
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⚠️ 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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