Austin Half Marathon weather
What will race morning in Austin cost you?
Austin Half Marathon mornings around race day since 2021, by weather-model estimate: about 42°F (5°C) at 07:00 near Austin. Most were 27 to 63°F.
- Date
- Sun, 14 Feb 2027
- Your start
- Wave A-D · 07:00
- Distance
- 13.1 mi
| Year | Air | Dew pt | Wind | Rain hrs |
|---|---|---|---|---|
| 2025 | 44°F | 39°F | 9 mph | 18% |
| 2024 | 49°F | 44°F | 7 mph | 18% |
| 2023 | 44°F | 37°F | 9 mph | 9% |
| 2022 | 43°F | 35°F | 8 mph | 18% |
| 2021 | 28°F | 24°F | 10 mph | 18% |
By weather-model estimate near the race, mornings around race day. Not station readings.
Austin’s half marathon shares race morning with the full marathon and 5K. Follow the organiser’s half-marathon course instructions rather than a full-marathon route. Organiser route
Each past race day priced from 07:00 to 09:00. Main factor: wind.Live forecast opens 31 January.
01 · The conditions
Race-day weather
Race-day forecasts appear 14 days before the race. Until then, here is what race morning has looked like.
Explore historical weather- ★★★★★5.080+ ratings
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Example race: a hot half marathon in Florida
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Works with Apple HealthGet Austin race-morning weather on your phone when it opens.
Set up Austin in the app now: your goal, your start, your pace plan. The race-morning forecast lands in it in race week.
On a computer? Scan with your phone camera to get the app.
Example race: a hot half marathon in Florida
02 · Same effort, different day
What the weather may cost your goal
2:00:00 goal. On a typical race morning here, expect about 2:00 to 2:08. Main factor: wind.
- Heat and sun+1%
- Wind and comfort0%
- Weather total+1%
RunWeather’s pace model at your goal effort, over every hour you are on course (07:00 to 09:00 local), weighted by the time you spend in each, using the five-year race-morning average. A planning preview, not a predicted finish. Hills, turns, shelter, fuelling and heat adaptation are not modelled here; rain is left out because a probability is not a measured rain rate. Explore the heat pace calculator.
View even-pace checkpoints
| Distance | Elapsed time |
|---|---|
| 3.1 mi | 0:28:26 |
| 6.2 mi | 0:56:53 |
| 9.3 mi | 1:25:19 |
| 12.4 mi | 1:53:45 |
| 13.1 mi · Finish | 2:00:00 |
In the app
Your race plan, on race morning
Add the Austin Half Marathon and the app keeps your plan current until the gun.
Goal pace against race-day pace
What your goal is worth on this morning’s weather, per mi and at the finish.
How to spend it
Start, middle and finish, against your average.
What slows you
Heat, wind and hills, each in minutes.
Goal vs race day
What slows you
Example race: a hot half marathon in Florida
Reference
Everything else about race morning
Open any row for the full detail.
The course13.1 mi
Austin’s half marathon shares race morning with the full marathon and 5K. Follow the organiser’s half-marathon course instructions rather than a full-marathon route.
RACE MORNING AT 07:002021–202527–63°FWhere most starts fell, in the weather near Austin around race day. Not a forecast.
- AVERAGE
- 42°F
- HUMIDITY
- 81%
- WIND
- 9 mph
Official race site ↗01Confirm your assigned wave before using the forecast; later starts can mean warmer running conditions.
02Compare the conditions at your start and expected finish before settling on kit and effort.
03Confirm late changes to the route, start wave and logistics with the organiser.
Race-window historyLast 5 years, race date ±5 days
A range for planning Austin Half Marathon: weather near Austin on race morning, the last 5 years (2021 to 2025, race date ±5 days). Not a forecast.
Typical start-hour air42°F10th–90th percentile 27°F–63°FDew point / humidity36°F81% relative humidityStart-hour wind9 mphDirection varies by dayHours with rain16%Historical frequency at this hourAIR THROUGH THE RUN42°F → 51°F by +4hThe five-year picture
07:00- Air temperature
- 42°F
- Humidity
- 81%
- Wind
- 9 mph
- Hours with rain
- 16%
Hover or drag to explore. Use ← → when focused. Shading: middle 80% of sampled temperatures.
Five-year average Middle 80% of sampled hoursThe sampled air warms by about 9°F across four hours. Check your expected finish-hour forecast, not just the start.
WIND CONTEXTWhere the breeze came from
WIND FROMN20 of 55 samples · 36%
Mean 12 mphThe petals show how often the wind came from each direction at the sampled start hour. They do not predict the direction on race day.
A city-point wind rose cannot tell you which parts of the course will be sheltered or exposed. Use the live forecast and the organiser’s route map together.
Method: 55 ERA5 hourly samples at 07:00 local time, across 11 calendar days per year in 2021–2025. The sample uses the hour containing the advertised first start; waves may start later. Grid weather is modelled reanalysis, not an on-course station reading. Open-Meteo Historical Weather API . Data generated 2026-10-29.
February climateAll-hours monthly averages
February averages in Austin, from 2022 to 2024. These are monthly conditions, not a race-day forecast.
- mean temperature
- 55°F
- mean humidity
- 67%
- mean wind
- 9 mph
- hours with rain
- 14%
Monthly, all-hours averages for Austin, 2022–2024. Not past race-day measurements or a forecast. Rain is the share of historical hours with precipitation, not the chance of rain on race day. Source: Open-Meteo ERA5.
Explore running weather in AustinAustin Half Marathon FAQs7 questions
When is the 2027 Austin Half Marathon?
Austin Half Marathon is listed for 14 February 2027. Confirm the latest details on the official event website before travelling.
Is the weather shown a forecast for the Austin Half Marathon?
Only from about 14 days before the race, when the page shows the live race-day forecast. Before that, you see the weather near the city on the mornings around race day in the last 5 years: what is typical, not what will happen. Monthly averages, when shown, cover every hour of the race month.
What is race morning usually like at the Austin Half Marathon?
Around the 07:00 start, mornings around race day near Austin in the last 5 years averaged 42°F (5°C), 81% humidity and 14 km/h wind. Most started between 27°F and 63°F. This is weather near the city, not a reading from the race itself or a forecast.
Which recent year had the warmest race morning at the Austin Half Marathon?
2024. Around race day that year it was about 49°F (10°C) around the 07:00 start, against 42°F (5°C) on an average year.
Which recent year had the windiest race morning at the Austin Half Marathon?
2021, with about 16 km/h of wind around the 07:00 start. Over the last 5 years the wind here came mostly from the north.
How should I pace the Austin Half Marathon on a warm day?
2:00:00 goal. On a typical race morning here, expect about 2:00 to 2:08. Main factor: wind. If race day comes in warmer, start a little easier than goal pace, run by feel to halfway and drink early. Plan my race gives your splits for the day.
Can past years predict the weather on race day at the Austin Half Marathon?
No. They show what race morning is usually like, not what this year will bring. Check the live forecast in the last 14 days, look at the hours through your expected finish, and follow the organiser for start and course updates.
Sources and race informationOrganiser, weather data, guide reviewed 2026-09-22
Past race-morning weather: Open-Meteo Historical Weather API, weather near the city from 2021 to 2025, updated 2026-10-29. Not official race-day readings.
Guide reviewed . RunWeather is an independent guide, not the race organiser. Dates, waves and routes can change; the organiser’s latest instructions take priority.
Austin race morning, on your phone.
Free on iPhone and Android. Your race plan, updated with the forecast until the gun.
On a computer? Scan with your phone camera to get the app.
Example race: a hot half marathon in Florida