Today's barometric pressure in Houston, 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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Houston's subtropical humidity frequently exceeds 80%, a known migraine trigger. Gulf storms create dramatic pressure drops, and the city's heat dome effect in summer adds temperature-related stress for sensitive individuals.
Worst season for migraines: January through March. Hurricane season can bring Houston's most extreme single pressure drops, but those are rare. The frequent drops come with winter cold fronts sweeping through warm Gulf air from January through March, peaking in January, when 42% of days see a 5 hPa drop. Summer thunderstorms are common but move pressure very little, 2% of days or fewer in each summer month.
Common triggers in Houston: persistent humidity above 80%, tropical storm pressure drops, rapid cold front passages in winter. Houston's subtropical climate means humidity itself is a constant baseline trigger. The city averages over 100 days per year above 90 degrees with humidity to match, creating dehydration risk that compounds weather-related migraine triggers. Gulf moisture surges can raise humidity from 60% to 95% in hours.
Typical pressure: Houston averages 1016 hPa at rest, measured at the city's own elevation rather than corrected to sea level, and storm systems can push readings down to 990 hPa. Swings of 4-10 hPa over 24 hours are common during active weather and fall within the range most associated with pressure-triggered migraines.
2026 index: Houston ranks #77 of 100 in our 2026 U.S. Migraine Risk Index, where #1 is the most challenging city for weather-driven migraine.
Can Houston weather trigger migraines?
Yes. Houston experiences 4-10 hPa barometric pressure swings, and research shows pressure drops are one of the most common migraine triggers. The city's specific patterns include persistent humidity above 80%, tropical storm pressure drops, rapid cold front passages in winter.
What time of year are migraines worst in Houston?
In Houston the most barometrically volatile stretch of the year falls in January 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 Houston?
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 Houston 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 Houston. The MigrAid app learns yours. It saves the barometric pressure, humidity and temperature with every migraine you log, shows whether Houston's swings really line up with your attacks, and alerts you when conditions match your own trigger history.