KSAT Runway 04/22 — San Antonio International Airport

Name: KSAT Runway 04/22 wind climatology 2005–2025
Creator: ATIS Alerts

8,505 × 150 ft concrete · true headings 041° / 221° · field elevation 809 ft

Runway 04/22 at San Antonio International Airport (KSAT) in San Antonio, TX is 8,505 ft long and 150 ft wide, concrete, with true headings 041° and 221°. Over 2005–2025 the wind gave runway 04 the headwind 47.3% of the time and runway 22 52.7%, with a crosswind above 15 kt in 3.2% of wind hours. KSAT publishes a digital ATIS, so this page shows the runway the tower is actually using right now and builds a record of how often each end is assigned.

Runway 04/22 — current status

NO CLOSURE REPORTED

The current D-ATIS names no closure, restriction or outage for it. No received NOTAM closes or restricts this runway, but the NOTAM stream has no complete initial load yet — verify NOTAMs before flight.

Sources: FAA runway record (OurAirports) · FAA NOTAMs · D-ATIS · D-ATIS 0151Z (8:51 PM CDT). Runway NOTAMs stream live from the FAA NOTAM Management Service (SWIM); the official text is shown verbatim below the card. Always confirm with a current briefing.

No received NOTAM currently names runway 04/22 at KSAT. NOTAMs are received live from the FAA NOTAM Management Service through SWIM and recorded since Sep 19, 2026; a NOTAM issued before that and not re-issued since may be missing. Get a full briefing before flight.

Runway visual rangeSTDDS 0225Z (9:25 PM CDT)

04 TDZ 6000+ ↑ · MID – · RO – · lights edge 2 / CL 0

22 TDZ – · MID – · RO 6000+ ↑ · lights edge 2 / CL 0

Feet, touchdown / midpoint / rollout; 6000+ is the reportable maximum and "off" means the sensor is not reporting (runway not in use). Light settings 0 (off) to 5. Runway lights are on. Not an FAA product; verify with the current METAR and ATIS.

Current active runways at KSAT

As stated by the tower — its TFDM surface system and its D-ATIS broadcast. Not an estimate.

Information Zulu · 0151Z (8:51 PM CDT)

Tower configuration (TFDM)

“13_FLOW” · updated recently

Arrivals

13R13L

Departures

13R13L04

Airport rates: 28 arrivals / 28 departures per hour. In effect since 2026-08-20 1642Z (11:42 AM CDT).

D-ATIS broadcast

Arrivals

13R

Departures

13R0413L

This D-ATIS configuration has been stated since 1651Z (11:51 AM CDT).

Show the D-ATIS text

SAT ATIS INFO Z 0151Z. 13005KT 10SM FEW080 27/24 A3005 (THREE ZERO ZERO FIVE). ILS RWY 13R APCH IN USE. DEPG RWY 13R, RWY 4, RWY 13L. NOTICE TO AIRMEN. TWY Q CLSD BTN RWY, 22 AND TWY Q1. RWY 13 LEFT PAPI OTS. BIRD ACTIVITY VICINITY ARPT. ATTENTION ALL AIRCRAFT RUNWAY ENTRANCE LIGHTS OPERATIONAL EVALUATION IN PROGRESS. RUNWAY ENTRANCE LIGHTS MAY BE OFFLINE INTERMITTENTLY THROUGOUT THE EVALUATION DO NOT CROSS ILLUMINATED RED LIGHTS AT TAXIWAY INTERSECTIONS. ...ADVS YOU HAVE INFO Z.

Current wind on Runway 04/22

Wind from the southeast (140°) at 5 kt

METAR 0151Z (8:51 PM CDT)

Runway 04

Tailwind: 1 kt
Crosswind: 5 ktfrom right

Runway 22

FAVORED BY WIND

Headwind: 1 kt
Crosswind: 5 ktfrom left

Wind-favored runway at KSAT right now: 13L (5 kt headwind) — a different runway than this one.

Components use TRUE runway headings and TRUE METAR wind. “Favored by wind” is arithmetic, not an ATC assignment.

ATIS Alerts Predicted Runway

Which runway at KSAT is likely to be in use over the next 12 hours — an estimate, not an ATC assignment.

Time	Likely runway	Confidence	Wind
Now0231Z · 9:31 PM CDT	13R and 13Lactive · tower TFDM stated by the tower (TFDM)	stated	140° at 5 kt
+1 h0331Z · 10:31 PM CDT	13Lthen 13R	Low47%	140° at 9 kt
+2 h0431Z · 11:31 PM CDT	13Lthen 13R	Low44%	140° at 9 kt
+3 h0531Z · 12:31 AM CDT	13Lthen 13R	Low41%	140° at 9 kt
+6 h0831Z · 3:31 AM CDT	13Lthen 13R	Low32%	140° at 9 kt
+12 h1431Z · 9:31 AM CDT	13L calm wind: the end this airport most often used in calm wind	Low55%	120° at 2 kt

ATIS Alerts Predicted Runway is an estimate from the TAF wind forecast and runway geometry (most headwind, crosswind penalised, tailwind over 5 kt avoided, longest runway breaks ties). It is not an ATC assignment and does not know about noise abatement, traffic flow or construction unless the D-ATIS states them. TAF issued 2320Z (6:20 PM CDT).

Tower demand plan (TFDM) · 0230Z–0445Z29 arrivals · 7 departures expected at KSAT

13Rarr 29 dep 704arr 0 dep 022arr 0 dep 0

Counts the tower's surface system expects per runway over the next two hours — the tower's plan, not an ATIS Alerts estimate and not an ATC assignment. A runway with zero expected demand is not in the plan for that period. During a runway change the plan can lag the configuration above for a few minutes (flights already assigned to the old runways stay counted there until reassigned).

Traffic management restrictions at KSAT (tower TFDM)as of 0217Z

GDP → DEN · since 09/18 2200Z · by DCC · Weather:Thunderstorms: — ground delay program
GDP → SAN · since 09/19 0000Z · by DCC · Volume/Terminal:Volume: — ground delay program
GDP → SFO · since 09/19 0200Z · by DCC · Volume/Terminal:Volume: — ground delay program
APREQ → MMAN · since 07/07 1543Z · until further notice — approval request — departures need a release time
APREQ → KHOU · since 07/08 1222Z · until further notice — approval request — departures need a release time
APREQ → LAX · since 09/01 1835Z · until further notice — approval request — departures need a release time
MIT · 10 MIT · 3 MINIT · since 07/07 1345Z · until further notice — miles-in-trail spacing

Restrictions on departures from KSATtoward the named airports or fixes, as recorded by the tower's surface system; they change the departure flow, not the runway in use. Not an FAA product.

Runway 04/22 overview

Physical characteristics from the FAA-derived runway record.

Length: 8,505 ft
Width: 150 ft
Surface: Concrete
Runway lights: Lighted
Airport elevation: 809 ft
FAA record status: Open

Runway 04

True heading: 041°
Magnetic (approx.): ≈ 038°
FAA record: Open

Runway 22

True heading: 221°
Magnetic (approx.): ≈ 218°
FAA record: Open

Runway 04/22 numbers are magnetic; the stored geometry and every wind calculation on this page are TRUE north, so they never need a variation correction. Magnetic variation here is about 3.5°E (World Magnetic Model). Displaced thresholds, declared distances (TORA/TODA/ASDA/LDA), approach lighting, PAPI/VASI, ILS equipment and traffic-pattern direction are FAA NASR fields not yet loaded — they are omitted rather than guessed.

Recorded runway use at KSAT — last 30 days

How often the tower's TFDM configuration listed each end for arrivals and departures (the tower's own statement, via FAA SWIM).

Over the last 30 days ATIS Alerts captured 706 hours of stated runway configuration at KSAT (29.4 days, 1 configuration change). Shares are the fraction of those hours in which the tower's TFDM system listed each end.

Runway 04

Arrivals: 0% (0 h)
Departures: 100% (706 h)

Runway 22

Arrivals: 0% (0 h)
Departures: 0% (0 h)

Recorded arrival share of runway 04 and 22 by wind direction at the time of each D-ATIS configuration
Wind from	Hours	04 arrivals	22 arrivals	04 departures	22 departures
Calm / light (< 5 kt)	706	0%	0%	100%	0%

night (232 h)

04 arr 0% · 22 arr 0%

morning (175 h)

04 arr 0% · 22 arr 0%

afternoon (180 h)

04 arr 0% · 22 arr 0%

evening (119 h)

04 arr 0% · 22 arr 0%

Time of day is airport-local.This is the facility's stated configuration, not an estimate from wind.

Historical wind and crosswind on runway 04/22

20-year hourly climatology from the ASOS archive, computed per runway end.

From 175,111 hourly observations at KSAT (2005–2025), 154,379 with a steady wind direction (11.8% calm, variable or direction-less). One observation per clock hour; TRUE headings against TRUE wind.

Crosswind on runway 04/22 (either end)

Mean crosswind

6.2 kt

median 5.5 kt

90th / 95th percentile

12 / 14 kt

max 35.6 kt

Above 10 kt

17.3%

> 15 kt: 3.2% · > 20 kt: 0.3%

Gust crosswind > 15 kt

9.7%

90th pct gust 15 kt

Strongest-crosswind month on average: May; calmest: Jan. Percentiles are streaming approximations (t-digest), accurate to about 0.1 kt.

Runway 04

Headwind

47.3%

of wind hours

Tailwind > 5 kt

18.8%

> 10 kt: 1.4%

Wind-favored end

21.5%

most headwind of all runways

Runway 22

Headwind

52.7%

of wind hours

Tailwind > 5 kt

17.6%

> 10 kt: 4.2%

Wind-favored end

15.2%

most headwind of all runways

“Wind-favored” counts the hours this end had the most headwind of every open runway at KSAT — wind arithmetic, not an ATC assignment (parallel runways with the same heading share the credit equally). Recorded D-ATIS use, where available, is the section above.

By wind direction

Wind-favored share of runway 04 and 22 by wind sector, 2005–2025
Wind from	Share of wind hours	04 favored	22 favored	Mean crosswind	Crosswind > 15 kt
N 338–023°	13%	71.2%	0%	5.7 kt	1.6%
NE 023–068°	8%	100%	0%	1.1 kt	0%
E 068–113°	11%	32%	0%	5.1 kt	0.4%
SE 113–158°	25%	0%	0%	9.7 kt	9.1%
S 158–203°	25%	0%	40.5%	6.4 kt	0.6%
SW 203–248°	4%	0%	100%	1.1 kt	0%
W 248–293°	3%	0%	32.1%	4.6 kt	1.7%
NW 293–338°	9%	0%	0%	5.9 kt	4.8%

By time of day (airport-local)

morning

04 favored 24.4% · 22 23.3%

mean crosswind 5.2 kt · calm 14.1%

afternoon

04 favored 21.2% · 22 17.8%

mean crosswind 7 kt · calm 11.9%

evening

04 favored 21.8% · 22 5.3%

mean crosswind 7.5 kt · calm 8.1%

night

04 favored 19.4% · 22 12.5%

mean crosswind 5.7 kt · calm 12%

Seasonal runway conditions

Monthly wind and weather statistics for runway 04/22 at KSAT, 2005–2025
Month	Prevailing	Mean wind	Gusty	Mean xw	xw > 10	xw > 15	xw > 20	04 tail > 5	22 tail > 5	IFR	TS	Fog
Jan	N	6.7 kt	12.6%	5 kt	9.3%	2.1%	0.4%	13.7%	26.9%	12.6%	0.38%	11%
Feb	N	7.4 kt	16.2%	5.4 kt	12.1%	2.1%	0.2%	17.2%	28.3%	15.9%	0.42%	12.7%
Mar	SE	8.3 kt	19.1%	6.9 kt	22%	5%	0.6%	19.9%	19.2%	11.8%	0.84%	8.9%
Apr	SE	8.7 kt	20.1%	7.4 kt	26.5%	5.4%	0.4%	18.5%	18.5%	9%	1.36%	7.2%
May	SE	8.9 kt	18.6%	7.6 kt	28.6%	6.1%	0.6%	19.1%	15.5%	5.8%	2.35%	4.5%
Jun	SE	8.6 kt	17.3%	7.6 kt	26.8%	5%	0.3%	27%	8.2%	3%	1.33%	1.2%
Jul	S	8.1 kt	15%	7.1 kt	22.4%	3.5%	0.1%	27.1%	5.7%	3%	1.07%	1.2%
Aug	S	7.6 kt	12.8%	6.5 kt	18%	2.8%	0.2%	24.5%	8.4%	1.7%	0.74%	0.7%
Sep	SE	6.3 kt	8.3%	5.3 kt	8.8%	0.8%	0.1%	11.6%	19.5%	3.9%	0.88%	1.7%
Oct	S	6.7 kt	11.7%	5.6 kt	11.6%	1.8%	0.1%	15.7%	18%	6.3%	0.66%	3.2%
Nov	S	6.5 kt	11.3%	5.1 kt	8.9%	1.3%	0.1%	16%	22.5%	9%	0.35%	6.5%
Dec	N	6.3 kt	10.9%	5 kt	9.3%	2.1%	0.3%	14.3%	22.9%	14.4%	0.26%	12%

IFR, thunderstorm (TS) and fog columns are airport-wide shares of hours; the crosswind and tailwind columns are specific to this runway. Prevailing = most common 45° wind sector among wind hours.

Runway 04/22 closure history

Runway NOTAM history begins when the NOTAM feed goes live (next phase).

D-ATIS broadcasts recorded since Aug 20, 2026 declared runway 04 closed on 0 days and runway 22 closed on 0 days in the last 30 days. Scheduled and unscheduled closure NOTAMs, with start and end times and the official text, will appear here once ATIS Alerts records runway NOTAMs; there is no retrievable archive, so history accrues from that date forward.

Instrument approaches to runway 04/22

From the FAA d-TPP, linked to the official plates.

Runway 04

Runway 22

10 departure procedures · 16 STARs · FAA hot spots page ↗ · FAA d-TPP cycle 2610. Plates open on aeronav.faa.gov (public domain); ATIS Alerts does not reproduce charts or minimums.

Methodology and sources

Short version below; the full write-up is at Runway Intelligence methodology, and every launched airport is listed on the Runway Intelligence hub.

Active runwayscome first from the tower's TFDM (Terminal Flight Data Manager) airport configuration, received as structured data through the FAA SWIM Cloud Distribution Service at towers that have it (KSAT does); otherwise from the airport's D-ATIS text (community relay of the FAA broadcast) with an open, tested parser, and the broadcast text is always shown. Every change is recorded, so “recorded use” is what the facility stated, never an inference. ATIS Alerts is not an FAA product and this is not FAA data; SWIM content is for non-operational use.
Wind components use the current METAR (aviationweather.gov) against TRUE runway headings from the OurAirports/FAA runway record.
Runway visual range, tower demand and traffic-management restrictions come from FAA SWIM: STDDS Airport Data (RVR and light settings, about 130 airports) and TFDM (15-minute runway demand, APREQ/MIT restrictions). Each block is stamped with its own time; none of it is an FAA product or a clearance.
Predicted runway scores each open end from the TAF wind (headwind, crosswind penalty, tailwind avoidance, longest-runway tie-break); confidence falls with forecast distance, gusts and TAF age. It does not model noise abatement or flow programs.
Climatology: Iowa Environmental Mesonet ASOS archive, one observation per hour, 45° wind sectors, percentiles via t-digest; runway geometry is today's record applied to all years. Methodology v1.
Approaches: FAA d-TPP metafile, current charting cycle; plates link to aeronav.faa.gov. No minimums are reproduced.
Data freshness: METAR and D-ATIS refresh every minute on this page; the D-ATIS recorder ran 1 min ago; the tower TFDM feed last delivered 14 min ago; climatology through 2025-12-31.

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Tools for this runway

⚠️ ATIS Alerts provides informational runway analysis based on available weather, D-ATIS, FAA data and historical observations. Active runways shown here are read from D-ATIS text and may lag or be misread; predicted runways are an ATIS Alerts estimate, not an ATC assignment. Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

Runway page score 73/100 · indexed (rollout wave gate).

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Crosswind (kt)	Share of wind hours
0–5	45.8%
5–10	36.9%
10–15	14.1%
15–20	2.9%
20–25	0.3%
25+	0%

Month	Mean crosswind (kt)
Jan	5.0 kt
Feb	5.4 kt
Mar	6.9 kt
Apr	7.4 kt
May	7.6 kt
Jun	7.6 kt
Jul	7.1 kt
Aug	6.5 kt
Sep	5.3 kt
Oct	5.6 kt
Nov	5.1 kt
Dec	5.0 kt