Barometric Migraine vs Tension Headache — How to Tell

The 4 AM test

Two people wake up at 4 AM with a headache. Same city, same bed-time, same pressure front rolling in from the west. They are going to spend the next six hours doing two very different things inside their own skulls, and the differential diagnosis — barometric migraine vs tension headache — usually lives in the description of the first thirty minutes.

Person A opens one eye, notices the ceiling light is too bright, rolls onto the side where the pain is not and groans because rolling made it worse. The pain is on the right, just behind the eye, and it is pulsing — matching the heartbeat, almost. The thought of coffee makes them faintly nauseous. They are going to call in sick.

Person B opens both eyes, feels a tight band across the forehead and into the back of the neck, thinks I slept on it wrong again. The pain is dull, bilateral, and it stays dull whether they stand up or lie back down. Bright light is annoying but not punishing. They take an ibuprofen, stretch the neck, make a coffee, and by 10 AM they have mostly forgotten about it.

You probably already know which one you are. But the clinical boundary matters, because the person who walks into their GP saying "I think my headaches are just tension" when they are actually having repeated barometric migraine attacks will spend ten years chasing posture fixes that were never going to work.

The International Classification of Headache Disorders, 3rd edition (ICHD-3, International Headache Society) is the diagnostic reference every neurologist uses. It separates migraine from tension-type headache on four main axes: pain character (throbbing vs pressing), laterality (one side vs both), activity response (worse with movement vs unaffected), and associated symptoms (nausea/photophobia/phonophobia vs basically none). If that checklist sounds too tidy to be real, it is — real patients overlap — but the four axes are where the conversation starts.

What the barometric research actually shows

The single most useful paper on weather and headache is the 2019 narrative review by Maini and Schuster in Current Pain and Headache Reports (PMID 31707623). The authors went through the barometric-headache literature and surfaced one finding that almost nobody quotes when they talk about "pressure headaches": mean pressure values are almost useless as a predictor. It is the rate of change that matters.

That distinction is the whole ballgame for barometric migraine vs tension headache. A steady 998 hPa for three days will not light anyone up. A 9-hectopascal drop across three hours, the kind that announces a cold front, will trigger a measurable uptick in migraine attack rate in weather-sensitive patients. The 2024 systematic review by Denney, Lee, and Joshi in the same journal (PMID 38358443), titled "Whether Weather Matters with Migraine," bundles together the broader weather literature and finds that weather variables collectively account for about one fifth of self-reported migraine triggers, with barometric change and temperature swing the two most consistent signals across studies.

Tension-type headache, by contrast, has a much quieter relationship with the barometer. A few small studies have looked, most have found nothing, and the ones that found a weak signal could not reproduce it cleanly. Which leads to a useful first-pass rule: if your headache is reliably arriving with the weather front, the probability it is migraine (even if mild, even without nausea) goes up sharply. Pure tension-type headache that closely tracks pressure drops is unusual in the research.

Want to know whether today's conditions are the kind of day that would flag as migraine-risky for a weather-sensitive patient? Look at today's live score. The number you are seeing bakes in pressure delta from 32 cities, the geomagnetic Kp index, and Schumann resonance amplitude. If it is in the Active or Storm band and your head is hurting, the barometric migraine story is much more plausible than the tension story.

Tension-type's weather story is quieter

I want to be careful here, because I have read too many migraine articles that treat tension-type headache as the boring cousin who does not deserve attention. That is not fair. Tension-type headache is, by American Migraine Foundation counts, the most common primary headache disorder in the world — vastly more prevalent than migraine, though less disabling per episode.

It just has a different biography. Its triggers are mostly mechanical and postural: a pinched trapezius from eight hours at a laptop, jaw clenching during a stressful week, unconscious eye-muscle strain at the wrong screen distance, dehydration that nobody noticed. Stress is the shared trigger where tension and migraine overlap — both of them spike in exam weeks and family fights — but the mechanism is different. Migraine is a trigeminovascular event with sensory hypersensitivity; tension-type headache is, best guess, a myofascial and central sensitisation problem with far less involvement of the vascular side.

That difference explains why tension-type headache is so much less responsive to weather. There is no good reason a 9-hectopascal pressure drop would make your upper trapezius knot up. If the knot was already there, the drop will not add much.

So when should you suspect pure tension-type instead of weather-triggered migraine? A few honest signals. The pain is bilateral, not one-sided. It is pressing or tightening, never pulsing. It does not get meaningfully worse when you walk upstairs. There is no nausea worth mentioning. Bright lights are annoying, not punishing. It responds reasonably well to a basic NSAID and a warm shower. It stops the moment you fall asleep and does not wake you up.

Does that sound like what happens to you most Tuesdays? Then tension is your main player, and the weather is probably a coincidence.

Or is it not quite that clean?

The overlap zone no clinician likes to admit

Here is the part nobody writes honestly about. A large fraction of people — probably the majority of chronic-headache patients who are not getting much help from their current treatment — have a mixed pattern. Migraine sometimes, tension-type most days, and a long-running grey zone in between where neither label quite fits.

ICHD-3 explicitly allows coexisting diagnoses. A patient can carry both "migraine without aura" and "chronic tension-type headache" on the same chart, and this is not a clinician being lazy — it is the honest description of the neurology. You can have three tension days a week, one clear migraine a month, and a "bad head day" every ten days that sits somewhere in the middle and drives you into a quiet room even though it does not pulse. That middle type is real. It might be mild migraine, or tension-type with central sensitisation, or a transitional form that does not have a neat name yet.

Two things blur the picture further. One is medication overuse. If you are taking painkillers more than about ten days a month, the headache you experience the next morning may be rebound, not primary, and rebound can feel like either migraine or tension depending on your underlying wiring. The other is that chronic migraine (15+ headache days a month, at least 8 of them migrainous) gets misdiagnosed as "chronic daily headache" or "chronic tension-type" with frightening regularity — I have talked to a reader who spent six years on the wrong protocol for exactly this reason.

If your pattern includes the occasional clearly migrainous attack — the kind where you end up in the dark — treat the background low-grade stuff as "possibly migrainous until proven otherwise." That one mental flip changes what you should track.

When it's neither — red flags that mean see a doctor today

Before the practical diary advice, the uncomfortable section. Both migraine and tension-type headache are primary headache disorders — meaning the headache itself is the disease. But a minority of headaches are secondary — the pain is a symptom of something else, and some of those "something elses" are surgical emergencies.

If you recognise yourself in any of the signs below, this article is not where you should be. Close the tab, call your doctor, and if the symptom is severe or sudden, call emergency services instead of your GP.

• Thunderclap headache. A sudden, severe, "worst headache of my life" pain that peaks to maximum intensity within 60 seconds. This pattern is the classic red flag for subarachnoid hemorrhage from a ruptured aneurysm, and it is a same-hour emergency. Not "wait until Monday." Not "see if ibuprofen helps." Emergency room, tonight, right now.
• New headache onset after age 50. If you have never had a regular headache history and suddenly you do, after fifty, that deserves a full workup. Giant cell arteritis, expanding intracranial masses, and posterior circulation strokes all show up first as "a new headache in someone who does not get headaches."
• Headache with fever, stiff neck, and bright-light intolerance together. That triad is the classic meningitis presentation. Photophobia alone is common in migraine and does not count — it is the combination with fever and nuchal rigidity that matters.
• Focal neurological deficit that outlasts aura. Migraine aura is usually visual, usually lasts 15 to 60 minutes, and resolves before or shortly after the pain starts. One-sided weakness, speech problems, facial droop, or persistent numbness that does not fade on that timescale is not aura, it is a stroke or TIA until proven otherwise in an ER.
• Headache after head trauma, even mild, especially if it is getting worse over the first 24 to 72 hours. Delayed subdural bleeding happens, and it is fixable if you catch it in time.
• Progressive worsening over weeks, especially if you are also getting morning headache plus vomiting without preceding nausea. That pattern concerns neurologists because it is how expanding intracranial lesions sometimes introduce themselves.
• A headache that wakes you from sleep night after night, consistently, at the same hour. That is not typical of primary headache and deserves a professional look.

I am not listing these to frighten you. Most headaches are benign, and most readers of a weather-and-migraine blog post have primary headache disorders that are annoying but not dangerous. I am listing them because no article, no checklist, no live score, and no number on a dashboard can rule out a secondary headache. Your doctor can.

What you can do this week

If you are still here, your headaches are probably primary, and you want to know which one — barometric migraine vs tension headache — you are actually dealing with. Two weeks of real data will tell you more than any quiz.

Start a diary. Pen and paper is fine. Each morning write down:

• The date and the weather trend. Pressure at your local met office this morning vs twelve hours ago (DWD, IMGW, Météo-France, NOAA NWS — whichever covers your city). You want the delta, not the absolute.
• The live score for the day, from the headache forecast — one number capturing pressure movement, Kp index, and Schumann amplitude.
• Pain character on a 0-10 scale, separated into "throbbing" and "pressing/band." If either is above 3, also note the location (one side, both sides, forehead, back of neck).
• Activity response. Did climbing stairs make it worse? Or did it feel the same?
• Nausea yes/no. Photophobia yes/no. Two binary checks.
• Duration in hours, and what ended it (sleep, medication, just waited it out).

Fourteen days is enough to see the pattern. If the pressure-drop days line up with the throbbing-unilateral-nauseous days, you have a barometric migraine story and the treatment conversation with your doctor needs to go in a completely different direction than it currently is. If the bad days correlate with long computer sessions and night-time jaw clenching instead, tension-type is your main player and the pressure front was coincidence. If both signals correlate — welcome to the overlap zone, you are in the majority.

Check what the sky is doing alongside the diary. It is one bookmark and about four seconds per morning. The goal is not to predict the future, it is to give your past two weeks a shape you can actually read.

Most migraine and tension-type headache sufferers I know of have been told, at some point, some version of "it's probably stress" and sent home without a differential. That is not mean — it is that a five-minute appointment cannot out-diagnose fourteen days of real-world data from your actual skull. This week is when you start collecting them.