Today's barometric pressure in Austin, a 48-hour pressure chart, and a risk score for weather-triggered migraine and headache, based on pressure drops, humidity, and temperature changes.
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Austin's Hill Country location makes it a battleground between Gulf moisture and dry western air. Cedar season in winter adds allergen triggers on top of weather changes, making December through February particularly challenging for migraine sufferers.
Worst season for migraines: December through March. Austin's pressure drops come mostly with winter cold fronts, from December through March, peaking in January, when 53% of days see a 5 hPa drop. Spring brings violent thunderstorms as Gulf moisture surges inland over the Balcones Escarpment, while summer is very calm, at 4% of days or fewer in each summer month.
Common triggers in Austin: Hill Country thunderstorm development along the Balcones Escarpment, cedar pollen allergen surges in winter, rapid temperature swings during blue northers. Austin straddles the Balcones Fault line, where the Texas Hill Country rises abruptly from the coastal plains. This geological boundary forces Gulf moisture upward, enhancing storm development directly over the metro area. The city is also notorious for intense cedar pollen seasons from December through February, which compound weather-related migraine triggers with allergen exposure.
Typical pressure: Austin averages 998 hPa at rest, measured at the city's own elevation rather than corrected to sea level, and storm systems can push readings down to 986 hPa. Swings of 4-11 hPa over 24 hours are common during active weather and fall within the range most associated with pressure-triggered migraines.
2026 index: Austin ranks #63 of 100 in our 2026 U.S. Migraine Risk Index, where #1 is the most challenging city for weather-driven migraine.
Can Austin weather trigger migraines?
Yes. Austin experiences 4-11 hPa barometric pressure swings, and research shows pressure drops are one of the most common migraine triggers. The city's specific patterns include Hill Country thunderstorm development along the Balcones Escarpment, cedar pollen allergen surges in winter, rapid temperature swings during blue northers.
What time of year are migraines worst in Austin?
In Austin the most barometrically volatile stretch of the year falls in December through March. That is when weather is most likely to play a part, if weather is a trigger for you at all. See when migraine weather season starts across the U.S.
Is there a barometric pressure headache forecast for Austin?
This page works as one. Many people call a headache that arrives with a weather change a barometric pressure headache, and this forecast tracks the pressure drops, humidity and temperature swings behind that idea. The score covers the next 24 hours in Austin and the chart shows the next 48. It is built on migraine research, so treat it as a rough guide for other headaches. A sudden, severe headache needs urgent medical care, whatever the weather.
Your own forecast
This page shows the weather risk for everyone in Austin. The MigrAid app learns yours. It saves the barometric pressure, humidity and temperature with every migraine you log, shows whether Austin's swings really line up with your attacks, and alerts you when conditions match your own trigger history.