48-hour migraine risk based on barometric pressure, humidity, and temperature changes in Seattle.
Seattle's reputation for rain means persistent low-pressure systems throughout fall and winter. While the Pacific Northwest's pressure changes tend to be gradual rather than sharp, the sustained low pressure itself is a trigger for many.
Worst season for migraines: October through March. Seattle's rainy season brings a continuous procession of Pacific low-pressure systems. While individual pressure drops are typically gradual rather than sudden, the sustained low barometric readings over weeks create a chronic trigger environment for migraine sufferers.
Common triggers in Seattle: persistent low-pressure systems, atmospheric river moisture events, rapid clearing after storm passages. Seattle's Puget Sound geography channels Pacific storms through the region, and the Olympic and Cascade mountain ranges create rain shadow effects that vary conditions across the metro area. The city averages 150+ days per year with measurable precipitation, each bringing some degree of pressure change.
Typical pressure: Seattle averages 1015 hPa at rest, but storm systems can push readings down to 998 hPa. Swings of 10-15 hPa over 24 hours are common during active weather and fall within the range most associated with pressure-triggered migraines.
Can Seattle weather trigger migraines?
Yes. Seattle experiences 10-15 hPa barometric pressure swings, and research shows pressure drops are one of the most common migraine triggers. The city's specific patterns include persistent low-pressure systems, atmospheric river moisture events, rapid clearing after storm passages.
What time of year are migraines worst in Seattle?
Migraine sufferers in Seattle typically report the highest attack frequency during October through March. This aligns with the period of greatest barometric volatility in the region.
How do I track migraine triggers in Seattle?
Use MigrAid to log your attacks with one tap. The app automatically records barometric pressure, temperature, and humidity at the time of each migraine, then finds patterns between your attacks and Seattle's weather conditions over time.
Loading live forecast for Seattle...