Is weather sensitivity inherited?

"Your grandmother could always tell when rain was coming. Your mother gets the same headache before a front. And now you do too." Families tell this story about themselves all the time, and it is one of the most common questions we hear: is weather sensitivity something you inherit, like eye colour or height?

The honest answer has two halves, and both matter.

The first half: weather sensitivity itself has never been directly measured for heritability. There is no twin study of meteoropathy. Nobody has taken thousands of identical and fraternal twins, asked them all how the weather affects them, and calculated a number. So anyone who tells you "weather sensitivity is X% genetic" is quoting a figure that does not exist.

The second half: the conditions that make a person weather-sensitive in the first place are, in many cases, clearly and measurably heritable. And that turns out to explain a great deal about why sensitivity clusters in families.

This article walks through what is actually known, what is inferred, and what remains genuinely open.

What "heritable" actually means (and what it does not)

Before any numbers, one piece of vocabulary needs clearing up, because it causes more confusion than almost any other term in this field.

When scientists say a trait is "40% heritable," almost everyone hears: 40% of my condition comes from my genes, 60% comes from my life. That is not what it means.

Heritability is a statement about a population, not a person. It describes how much of the variation between people in a group can be traced to genetic differences between them, in a particular environment, at a particular time. It says nothing about how much of any individual's experience is genetic. Your migraine is not "42% inherited." The concept simply does not apply at the level of one human being.

An illustration that makes this concrete: height is highly heritable — but if a whole population is undernourished, everyone is short, and the variation you can attribute to genes shrinks. Same genes, different number. Heritability moves with circumstances.

Two more things heritability does not mean:

• It does not mean unchangeable. A heritable trait can respond enormously to circumstances. Heritability describes origins of variation, not the ceiling on what can change.
• It does not mean a single gene. Almost nothing in this area works that way. Which brings us to the numbers.

Migraine: the clearest evidence we have

Migraine is the single most important thread here, because it is both strongly linked to weather triggers and one of the best-studied conditions in genetics. If you want to know whether weather sensitivity runs in families, migraine is where the real data live.

Twin studies put migraine heritability at roughly 30–60%, with most modern estimates clustering around 42–45%. A scoping review of twin studies published in Headache: The Journal of Head and Face Pain in 2024 gathered these together; a large Finnish study of over 8,000 twin pairs found heritability of about 0.42 in men and 0.47 in women — essentially equal between the sexes, which is notable given that migraine itself is far more common in women.

Twin studies work by a clean logic. Identical twins share essentially all their DNA; fraternal twins share about half. Both kinds of twin pairs typically grow up in the same house, eating the same food, breathing the same air, at the same altitude, in the same climate. So if identical twins resemble each other more than fraternal twins do on some trait, the extra resemblance points toward genes rather than shared upbringing. It is one of the few tools that can pull those two influences apart.

What the migraine numbers say, in plain terms: genetics matters substantially, and it is nowhere near the whole story. A number around 45% means the majority of the variation between people is not explained by inherited differences. Having a parent with migraine shifts your odds. It does not settle anything.

It is hundreds of genes, not one

If you are picturing a "weather gene" — one switch, on or off, passed down like a family heirloom — the real picture is very different.

The largest genetic study of migraine to date, published in Nature Genetics in 2022, analysed 102,084 migraine cases against 771,257 controls and identified 123 separate regions of the genome associated with migraine risk, 86 of which had never been identified before. Not one gene. A hundred and twenty-three regions, each nudging risk by a small amount.

This is what geneticists call a polygenic trait. Risk accumulates from many small contributions scattered across the genome, rather than arriving from one decisive variant. It is the same architecture behind height, blood pressure, and most common traits.

The study found something else worth knowing. Some risk variants appeared specific to migraine with aura (in genes called HMOX2, CACNA1A and MPPED2), others specific to migraine without aura, and nine that raised risk regardless of subtype. So even within one condition, inheritance is not a single pathway — different flavours of the same experience trace back to partly different biology.

Interestingly, several of the newly identified regions contained genes encoding the targets of modern migraine drugs — CALCA/CALCB (which produce calcitonin gene-related peptide) and HTR1F (a serotonin receptor). Genetics arrived independently at the same biology that medicine had already found by other routes, which is a good sign that the findings describe something real.

The rare exception: when it really is one gene

There is one corner of this field where the simple picture holds — and it is worth understanding precisely because it is so unusual.

Familial hemiplegic migraine (FHM) is a rare form of migraine in which attacks include temporary weakness on one side of the body alongside other aura symptoms. Unlike ordinary migraine, FHM is caused by a change in a single gene, and it is inherited in an autosomal dominant pattern: one altered copy is enough to cause it, and a parent who carries it has roughly a 50% chance of passing it to each child. Textbook Mendelian inheritance.

Four genes are known to be involved: CACNA1A (FHM1), ATP1A2 (FHM2), SCN1A (FHM3), and PRRT2. According to MedlinePlus Genetics, the first three all encode proteins that move charged ions across cell membranes — the machinery nerve cells use to signal to each other. When that ion balance is disturbed, the release and uptake of neurotransmitters in the brain goes awry.

But FHM is rare, and its rarity is the point. The overwhelming majority of people with migraine — and the overwhelming majority of people who notice the weather — do not have anything like this. FHM is the exception that shows what real single-gene inheritance looks like, and by contrast, how unlike it the common case is.

The joints and the wider pain picture

Migraine is not the only route into weather sensitivity. Joint pain is the other classic one, and the genetic evidence there is, if anything, stronger.

Twin studies place osteoarthritis heritability somewhere between about 30% and 65%, depending on the joint and the study. Some estimates by site: around 60% for hip OA, roughly 39–65% for hand and knee OA in women, and about 70% for OA of the spine. One large study reported 66% for hip, 47% for knee, and 53% for OA in any joint.

Chronic pain more broadly comes in lower. An Italian twin study of non-cancer chronic pain found broad-sense heritability of about 0.36 for whether chronic pain occurred at all, and 0.31 for its intensity. And a study of pain reporting across different musculoskeletal sites found a "pain reporting factor" with heritability around 46% — meaning the general tendency to notice and report pain has an inherited component of its own, separate from any specific joint or condition.

That last finding is quietly important, and we will come back to it.

Sensitivity to the environment, as a trait in its own right

Here is where the picture gets more interesting than a simple list of diseases.

Psychologists study something called Environmental Sensitivity — a broad temperamental trait describing how strongly a person registers and processes what is going on around them. A twin study of 2,868 adolescents found the heritability of sensitivity was about 0.47, and, notably, that the genetic influences behind sensitivity to negative experiences were relatively distinct from those behind sensitivity to positive ones.

This matters for our question because weather sensitivity is not only about whether your body reacts. It is also about whether you notice. Two people can have identical physiology and report completely different experiences, because one is attuned to internal signals and the other is not. Research on this trait suggests that attunement itself is partly inherited.

Studies of weather-sensitive people are consistent with this. In the European Project on OSteoArthritis (EPOSA), which looked at older adults with osteoarthritis across six countries, 67.2% perceived the weather as affecting their pain — and weather-sensitive participants reported more pain overall. Women and more anxious people were more likely to report weather sensitivity.

So the inherited contribution may run through at least two channels: what your body does when pressure drops, and how readily you perceive and register it. Both appear to have genetic components. Neither is the whole thing.

Why families cluster — and why genes are not the only explanation

Now the uncomfortable part, and the reason we opened with that caveat about missing evidence.

Your family shares your genes. Your family also shares:

• A place. The same city, the same altitude, the same climate, the same frequency of passing fronts. If weather-related symptoms cluster in a household, geography is doing some of the work.
• A home. Heating, damp, air quality, noise, light.
• Habits. Sleep timing, meals, caffeine, activity, stress. Many of the strongest known migraine triggers are lifestyle-shaped, and lifestyle is learned around a kitchen table.
• A story. This one gets underrated. If you grew up hearing "grandma's knee knows when rain is coming," you learn to link weather and symptoms — to notice the connection, to look for it, to remember the hits and forget the misses. That is not fakery. It is how attention works in everyone.

Twin studies exist precisely to separate the first bullet from the rest. For migraine and osteoarthritis, that separation has been done, repeatedly, in large samples. For weather sensitivity as such, it has not. So when a family shares weather sensitivity, we genuinely cannot yet say how much is inherited biology and how much is a shared postcode plus a shared habit of noticing.

Both are real. The proportions are unknown.

The "missing heritability" puzzle

One more honest wrinkle, because it shows how live this science still is.

Twin studies put migraine heritability at 30–60%. But when researchers try to account for it by adding up the effects of measured genetic variants directly — so-called SNP-based heritability — recent meta-analyses land at only about 11.2% to 14.6%.

That is a large gap, and geneticists call it the missing heritability problem. The explanation is debated: possibly rare variants that current methods do not capture well, possibly interactions between genes, possibly gene-environment interplay that twin designs fold into the genetic column, possibly that twin studies overestimate somewhat. It is an open research question across many traits, not a scandal specific to migraine.

The practical takeaway: even for the best-studied condition in this whole area, the field does not fully agree on how much is inherited. Anyone offering you a confident, precise number for weather sensitivity is going well past the evidence.

So — is it inherited?

Pulling it together:

What we can say with reasonable confidence:

• Migraine is substantially heritable (~30–60% in twin studies), polygenic, involving 123 known risk loci.
• Osteoarthritis is substantially heritable (~30–65%, varying by joint).
• The general tendency to report pain is partly heritable (~46%).
• Environmental sensitivity as a temperament is partly heritable (~47%).
• A rare migraine subtype, FHM, follows true single-gene dominant inheritance.

What follows by reasonable inference:

• If the conditions underlying weather sensitivity are heritable, and the tendency to notice bodily signals is heritable, then weather sensitivity very likely has an inherited component too.

What remains genuinely unknown:

• How large that component is. No study has measured it.
• How much family clustering is genes versus shared place, shared habits, and shared expectations.

And the most important framing of all: heritable is not the same as fixed. A ~45% heritability estimate for migraine means most of the variation between people traces to something other than inherited differences. Family history shifts your starting position. It does not write your outcome.

If your family has a long tradition of feeling the weather, the useful conclusion is not "this was decided before I was born." It is that you have a reason to pay attention — to observe your own pattern rather than assume you have inherited someone else's. Family history is a hint about what to watch for, not a verdict.

Watching your own pattern

Family stories are compressed and lossy. "Grandma always knew when rain was coming" survives because the hits are memorable and the misses are not. Your own pattern may differ from your mother's in which conditions matter, how quickly you react, and how strongly — even if you share half her DNA.

This is exactly the gap a record closes. Noting how you feel alongside what the atmosphere and the geomagnetic field were actually doing turns an inherited family story into your own observed data. Sometimes it confirms the story. Sometimes it shows the pattern is real but different — you react to the rate of pressure change rather than the level, or to one direction and not the other. Sometimes it shows the connection is weaker than family lore suggested.

All three of those are useful, and none of them can be known in advance from a family tree.

MeteoStorms shows geomagnetic activity from NOAA SWPC and GFZ Potsdam alongside atmospheric pressure for your location, so that if you choose to track how you feel, you are comparing it against measured conditions rather than memory. What the data mean for you is yours to discover — and if symptoms are persistent, troubling, or changing, that is a conversation worth having with a doctor, who can look at your history properly.

Sources

• Olofsson I. et al. "Migraine heritability and beyond: A scoping review of twin studies." Headache: The Journal of Head and Face Pain, 2024. https://headachejournal.onlinelibrary.wiley.com/doi/10.1111/head.14789
• Hautakangas H. et al. "Genome-wide analysis of 102,084 migraine cases identifies 123 risk loci and subtype-specific risk alleles." Nature Genetics, 2022. https://www.nature.com/articles/s41588-021-00990-0
• "Genetics of migraine: where are we now?" PubMed Central, National Institutes of Health. https://pmc.ncbi.nlm.nih.gov/articles/PMC9940421/
• Familial hemiplegic migraine. MedlinePlus Genetics, U.S. National Library of Medicine. https://medlineplus.gov/genetics/condition/familial-hemiplegic-migraine/
• Familial Hemiplegic Migraine. GeneReviews®, NCBI Bookshelf, National Institutes of Health. https://www.ncbi.nlm.nih.gov/books/NBK1388/
• Assary E. et al. "Genetic architecture of Environmental Sensitivity reflects multiple heritable components: a twin study with adolescents." Molecular Psychiatry. https://pubmed.ncbi.nlm.nih.gov/32488124/
• "Risk factors for osteoarthritis: genetics." Osteoarthritis and Cartilage. https://www.oarsijournal.com/article/S1063-4584(03)00253-X/fulltext
• "An Italian Twin Study of Non-Cancer Chronic Pain as a Wide Phenotype and Its Intensity." PubMed Central, National Institutes of Health. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9697129/
• Timmermans E.J. et al. "Self-perceived weather sensitivity and joint pain in older people with osteoarthritis in six European countries: results from the European Project on OSteoArthritis (EPOSA)." PubMed Central, NIH. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3996041/
• "Sex differences in migraine: A twin study." PubMed Central, National Institutes of Health. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8915724/
• NOAA Space Weather Prediction Center — geomagnetic activity and Kp index data. https://www.swpc.noaa.gov/
• GFZ German Research Centre for Geosciences, Potsdam — Kp and Hp geomagnetic indices. https://www.gfz-potsdam.de/en/kp-index/