48-hour migraine risk based on barometric pressure, humidity, and temperature changes in Key West.
Key West sits at the end of the Florida Keys, a metre above sea level and surrounded by warm shallow water. Its swing range of 4 to 5 hPa is the narrowest in this entire dataset, and the barometer here can sit nearly motionless for weeks.
Worst season for migraines: February, January and March. Very few fronts reach this far south, and the handful that do arrive weakened. What limited barometric variation exists concentrates in the cool months, making each event stand out sharply against an unusually flat baseline.
Common triggers in Key West: hurricane approach pressure collapse, persistent trade wind humidity, rare cool-season frontal arrivals. Surrounded by water on every side, the island has an exceptionally narrow temperature range, rarely dropping below 18C or rising above 33C. That stability makes tropical systems the dominant weather event by a wide margin. A hurricane approach produces a pressure fall unlike anything else the city experiences, sometimes exceeding 40 hPa, against a baseline that otherwise barely moves.
Typical pressure: Key West 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 1008 hPa. Swings of 4-5 hPa over 24 hours are common during active weather and fall within the range most associated with pressure-triggered migraines.
Can Key West weather trigger migraines?
Yes. Key West experiences 4-5 hPa barometric pressure swings, and research shows pressure drops are one of the most common migraine triggers. The city's specific patterns include hurricane approach pressure collapse, persistent trade wind humidity, rare cool-season frontal arrivals.
What time of year are migraines worst in Key West?
In Key West the most barometrically volatile stretch of the year falls in February, January and March. That is when weather is most likely to play a part, if weather is a trigger for you at all.
How do I track migraine triggers in Key West?
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 Key West's weather conditions over time.
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