Race Discovery
San Antonio Marathon
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San Antonio Marathon

San Antonio, Texas, United States View on map
Dec 04, 2026 – Dec 06, 2026 (America/Chicago local time)
Running

About this race

The San Antonio Marathon, presented by San Antonio Sports, celebrates the spirit and heritage of our city. In collaboration with the City of San Antonio, Visit San Antonio, and Centro, this signature event invites you to experience a premier running celebration in the heart of San Antonio - Where Every Step Tells a Story.

Pick your distance

Running

2026 - 5K

Dec 04, 2026 5K 8:00 PM
$59.00
Open

2026 - Marathon

Dec 04, 2026 Marathon 7:15 AM
$159.00
Open

2026 - Half Marathon

Dec 04, 2026 Half-Marathon 7:15 AM
$129.00
Open

Typical race-day weather

Based on 9 years of Open-Meteo archive data for this event's race dates in San Antonio, plus the 3 days either side.

Temp (°C)
Minimum temperature (race-week average) 9.8° / Maximum temperature (race-week average) 19.2°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-week average) 8.0° / Maximum feels like — heat index / wind chill (race-week average) 19.3°
Peak wind (km/h)
Strongest wind of the day (race-week average)
16.7
Precip (mm)
Precipitation over the day (race-week average)
2.2mm
Humidity
Mean relative humidity (race-week average)
70.1%
Sunrise
Sunrise at the start line on December 4, 2026 (CST)
Sunset
Sunset at the start line on December 4, 2026 (CST)
Daylight
Hours between sunrise and sunset on race day
10h 21m

The sun rises at 7:13 AM and sets at 5:35 PM local time (CST) in San Antonio on December 4, 2026 — 10h 21m of daylight.

Course

No course map published yet.

The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.

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Other races near San Antonio

Different organizers, within 40 miles, in the next three months

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Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.

  • Entries, prices, waves and inclusions — the event's official registration page
  • Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
  • Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
  • Comparisons and counts — Race Discovery calendar, 262 San Antonio events

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