Today's barometric pressure in Saint Petersburg, 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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Saint Petersburg occupies the Pinellas peninsula with the Gulf on one side and Tampa Bay on the other, water on nearly every side. Pressure averages 1017 hPa and swings only 4 to 6 hPa, among the steadiest readings anywhere in this dataset.
Worst season for migraines: January, February and December. Cool-season fronts reaching central Florida produce the few clear barometric events of the year. Everything else is convective, driven by sea breezes rather than by any large-scale system.
Common triggers in Saint Petersburg: colliding Gulf and bay sea breezes, tropical system pressure falls, year-round humidity with minimal barometric variation. Because water surrounds the peninsula on three sides, sea breezes develop from both the Gulf and the bay each afternoon and collide somewhere over the middle. Where they meet, thunderstorms fire, which is why storm placement here can be extremely local and repeats in similar spots day after day. Hurricane season overlays the deepest pressure falls the region experiences.
Typical pressure: Saint Petersburg averages 1017 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 4-6 hPa over 24 hours are common during active weather and fall within the range most associated with pressure-triggered migraines.
2026 index: Saint Petersburg is not one of the 100 metros ranked in our 2026 U.S. Migraine Risk Index, which shows how they compare.
Can Saint Petersburg weather trigger migraines?
Yes. Saint Petersburg experiences 4-6 hPa barometric pressure swings, and research shows pressure drops are one of the most common migraine triggers. The city's specific patterns include colliding Gulf and bay sea breezes, tropical system pressure falls, year-round humidity with minimal barometric variation.
What time of year are migraines worst in Saint Petersburg?
In Saint Petersburg the most barometrically volatile stretch of the year falls in January, February and December. 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 Saint Petersburg?
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 Saint Petersburg 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 Saint Petersburg. The MigrAid app learns yours. It saves the barometric pressure, humidity and temperature with every migraine you log, shows whether Saint Petersburg's swings really line up with your attacks, and alerts you when conditions match your own trigger history.