Today's barometric pressure in Sacramento, 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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Sacramento's delta breeze creates daily pressure oscillations as cool marine air pushes inland each evening. Winter atmospheric rivers bring the most dramatic pressure drops, sometimes delivering inches of rain alongside steep barometric declines.
Worst season for migraines: February. Sacramento receives the full force of Pacific atmospheric rivers funneled through the Carquinez Strait from San Francisco Bay. These moisture plumes can deliver several inches of rain in 24 hours with corresponding sharp pressure drops. Summer brings extreme dry heat with temperatures regularly exceeding 105 degrees.
Common triggers in Sacramento: atmospheric river pressure events through the Delta, summer heat exceeding 105 degrees with rapid evening cooling, Tule fog inversions in the Sacramento Valley. Sacramento sits at the confluence of the Sacramento and American Rivers in a broad valley that funnels Pacific weather inland. The Sacramento-San Joaquin Delta acts as a natural wind and moisture corridor, and the Sutter Buttes to the north create localized weather effects. The city's inland position means extreme summer heat without coastal moderation, creating large daily temperature swings.
Typical pressure: Sacramento averages 1015 hPa at rest, measured at the city's own elevation rather than corrected to sea level, and storm systems can push readings down to 1001 hPa. Swings of 4-8 hPa over 24 hours are common during active weather and fall within the range most associated with pressure-triggered migraines.
2026 index: Sacramento ranks #90 of 100 in our 2026 U.S. Migraine Risk Index, where #1 is the most challenging city for weather-driven migraine.
Can Sacramento weather trigger migraines?
Yes. Sacramento experiences 4-8 hPa barometric pressure swings, and research shows pressure drops are one of the most common migraine triggers. The city's specific patterns include atmospheric river pressure events through the Delta, summer heat exceeding 105 degrees with rapid evening cooling, Tule fog inversions in the Sacramento Valley.
What time of year are migraines worst in Sacramento?
In Sacramento the most barometrically volatile stretch of the year falls in February. 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 Sacramento?
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 Sacramento 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 Sacramento. The MigrAid app learns yours. It saves the barometric pressure, humidity and temperature with every migraine you log, shows whether Sacramento's swings really line up with your attacks, and alerts you when conditions match your own trigger history.