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 (160°) at 8 kt, visibility 10+ statute miles, no cloud data, temperature 29°C (85°F), altimeter 29.87 inHg. Conditions are Visual Flight Rules (VFR).
METAR KHYI 290256Z AUTO 16008KT 10SM CLR 29/22 A2987 RMK AO2 SLP105 T02940217 53013
What changed at KHYI?
Since the 0156Z (8:56 PM CDT) report — compared automatically against the latest METAR.
- Wind speed down from 13 to 8 kt.
- Pressure rising: altimeter 29.85 → 29.87 inHg.
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 160° at 8 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 08, about 8 knots. Density altitude is approximately 2,550 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 →
Get KHYI weather alerts in Telegram
Stop refreshing aviation weather manually. Track KHYI 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 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 |
|---|---|---|---|---|
| 17FAV | 5,214 ft | ASP | 8 kt head | 2 kt left |
| 13 | 5,601 ft | ASP | 7 kt head | 4 kt right |
| 08 | 6,330 ft | ASP | 2 kt head | 8 kt right |
| 26 | 6,330 ft | ASP | 2 kt tail | 8 kt left |
| 31 | 5,601 ft | ASP | 7 kt tail | 4 kt left |
| 35 | 5,214 ft | ASP | 8 kt tail | 2 kt right |
Open the crosswind calculator — 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→8 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 © OpenStreetMap © CARTO
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.
Recent aviation weather trends at KHYI
From ATIS Alerts' hourly weather history.
Over the past 24 hours, KHYI reported a mix of conditions, most often VFR across 29 observations, with 4 flight-category changes. The strongest gust reached 18 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
- 60%
- 13
- 26%
- 08
- 8%
- 26
- 4%
- 35
- 2%
- 31
- 0%
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We'll message you on Telegram the moment a new METAR changes the picture at KHYI (San Marcos Regional Airport) — flight category, wind, or ceiling past your minimums.
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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
- 22h 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
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 2608 · 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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