Migraine Weather Forecast: 7-Day Barometric Pressure
Pick a city or use your location to see the next seven days of barometric pressure, with the largest 24-hour change for each day. Many people with migraine say weather changes affect them, but the research is mixed. This tool shows how much the weather changes. It does not predict your migraine.
Barometric Pressure Forecast for Your City
Search the built-in list of major cities in the US, UK, Canada, Australia, Germany, Austria and Switzerland, or allow location access. The forecast loads straight into your browser and your location is not sent to Claru.
Choose from 128 built-in cities, or use your location. Your location stays in your browser.
Research on pressure and migraine is mixed; some people notice a link and others don't. This tool shows weather change, it doesn't predict your migraine. Labels: stable under 5 hPa per 24 h, noticeable change 5 to 10, large change over 10.
Weather data: MET Norway (CC BY 4.0)
How to Read the Pressure Change Label
Each day card shows the largest change in sea-level pressure over any 24-hour window that starts that day. The labels describe weather change only. They are not a health score.
| Label | Change in 24 hours | What it means |
|---|---|---|
| Stable | Under 5 hPa | A calm, steady stretch of weather |
| Noticeable change | 5 to 10 hPa | A front or pressure system is moving through |
| Large change | Over 10 hPa | A fast, strong shift in the weather |
Pressure is one weather factor among several. Temperature, humidity and wind change at the same time, which is one reason the research is hard to interpret.
What Research Says About Pressure and Migraine
Many people with migraine report weather as a trigger. A 2024 review found that studies show mixed results and no clear cause-and-effect link. A 2025 systematic review of 14 studies found inconsistent results: some linked pressure drops or rapid swings to more frequent attacks, but none linked pressure to attack duration.
Mixed evidence: Research on pressure and migraine is mixed; some people notice a link and others don't. This tool shows weather change, it doesn't predict your migraine.
For background on how pressure may matter, read our barometric pressure headache guide and how pressure drops relate to migraine.
Test Whether Weather Matters for You
The only way to learn whether weather matters for you is to compare your own attacks with the weather over several weeks. Note the date, severity and the pressure label that day, then look for repeats. A paper diary can start this, or you can let the app do it.
Combine weather with your own attacks
Claru's 7-day migraine risk forecast is free in the app and combines weather with the attacks you log. Claru Pro adds weather and air-quality correlations with your own history, so you can see what actually lines up for you.
Download Claru freeAvailable for iOS and Android. Current availability and plans are listed in the app store.
People Also Ask
Can barometric pressure cause headaches or migraines?
Some people report that pressure changes coincide with their attacks, but studies disagree. A 2024 review describes mixed results and no proven cause-and-effect link, and a 2025 systematic review found inconsistent findings. Your own log is the best way to check for a pattern.
What is a big pressure change?
There is no medical cut-off. This tool describes weather change only: under 5 hPa in 24 hours is stable, 5 to 10 hPa is a noticeable change, and over 10 hPa is a large change. These are descriptive labels, not a migraine risk level.
Where does the weather data come from?
The forecast is from the MET Norway Locationforecast service and is licensed CC BY 4.0. Your browser requests it directly using rounded coordinates, and results are cached for 30 minutes.
Does this tool predict my migraine?
No. It shows how the forecast pressure changes. Whether that matters for you depends on your own triggers, which a diary or the Claru app can help you identify.
Is my location stored?
Your coordinates go only to MET Norway to fetch the forecast. The last place you chose is saved in your own browser so it loads next time. Claru receives nothing.
Related Resources
- Barometric Pressure Headache: Causes and Relief
- Weather, Migraine and Pressure Drops
- The Weather and Pressure Connection
- Headache Location Map: What Your Pain Location Can Mean
- Printable headache diary: log pressure-change days
Sources: Denney et al. (2024), Whether Weather Matters with Migraine, Current Pain and Headache Reports; Farah et al. (2025), Barometric pressure changes and migraine attacks: systematic review, Cureus; Weather data: MET Norway (CC BY 4.0). This content is educational and does not replace medical advice. It shows weather change, not migraine risk. Seek urgent care for a sudden severe headache, or one with weakness, confusion, fever with a stiff neck, or after a head injury.