Updated September 6, 2026
If your jaw seems more sensitive when temperatures drop, you are not necessarily imagining the pattern. Some people with chronic jaw or muscle pain report changes in their symptoms along with changes in temperature, humidity or atmospheric pressure.
What science cannot yet tell us is that cold weather directly causes temporomandibular disorders—or that winter reliably makes TMD worse for everyone.
Research on weather and pain is mixed, and individual responses can differ considerably. For some people, weather may be one of several factors that changes how an existing pain condition feels rather than the underlying reason the condition exists.
What does the research say about cold weather and TMD?
The relationship is much less clear than many online explanations suggest.
A 2024 study published in Scientific Reports examined nationwide health data from South Korea between 2010 and 2022. Researchers compared the number of people treated for temporomandibular disorders with seasonal and temperature data.
Their original hypothesis was that TMD would be more common during cold winters.
That hypothesis was not supported.
TMD patient numbers did not significantly increase during winter compared with summer, and absolute low temperature did not show the expected relationship with the number of patients.
Interestingly, the researchers did find that larger differences between high and low temperatures were associated with higher TMD patient counts.
That result is worth investigating further, but it does not prove that changing temperatures caused the disorders or that everyone experiences more pain when temperatures swing.
Can weather changes affect jaw pain in some people?
Possibly.
Smaller studies looking directly at pain suggest that certain people may be more weather-sensitive than others.
One pilot study followed seven women with chronic masticatory muscle pain and repeatedly recorded their pain alongside temperature, atmospheric pressure and humidity.
Weather variables were associated with pain scores in five of the seven participants—but the direction and size of the associations differed considerably from person to person.
In other words, one person's pain might increase under a weather condition that has little effect—or even the opposite association—in someone else.
Because the study was extremely small, it cannot establish a universal rule about weather and jaw pain. It does support the idea that individual patterns may exist.
Why might my jaw feel worse when it's cold?
Several explanations have been proposed, but most should be thought of as possible mechanisms rather than proven causes.
Muscle tension
People often tense or brace muscles when they feel cold. If your chewing muscles are already sore or overworked, you may notice that additional tension makes them feel less comfortable.
This is plausible, but it does not mean cold air itself creates a temporomandibular disorder.
Changes in pain sensitivity
Weather-pain research across many chronic pain conditions suggests that temperature, humidity, wind and atmospheric pressure may influence pain perception in some people.
Results across studies are inconsistent, however. Researchers have found both positive and negative associations, and many studies find little or no meaningful effect.
Changes in activity and behavior
Winter can also change daily routines.
People may sleep differently, exercise less or more, spend more time working indoors, experience different levels of stress or unknowingly clench their jaw during periods of concentration.
Those behavioral changes can make it difficult to separate the effect of the weather itself from everything else that changes with the season.
An existing joint or muscle condition
If you already have a painful TMD, arthritis or another chronic pain condition, you may be more aware of fluctuations in symptoms.
Again, symptom fluctuation does not tell us that cold weather caused the underlying disorder.
Does barometric pressure cause TMJ pain?
We do not have strong enough evidence to say that it does.
Atmospheric pressure has been studied in relation to many chronic pain conditions, including masticatory muscle pain. Some studies find associations; others do not.
Even when an association is detected, it does not necessarily show that changes in pressure are physically damaging the TMJ.
Claims that falling barometric pressure makes the jaw joint swell, shifts the disc or directly inflames the TMJ go beyond what current evidence can establish.
If you personally notice that your symptoms repeatedly change around major weather shifts, keeping track of that pattern can be reasonable. Just treat it as an observation rather than proof of what is happening inside the joint.
Does cold weather inflame the TMJ?
It has not been established that ordinary exposure to cold weather directly inflames a healthy temporomandibular joint.
TMD is also much broader than inflammation.
The National Institute of Dental and Craniofacial Research (NIDCR) describes temporomandibular disorders as a group of more than 30 conditions affecting the jaw joints, chewing muscles and associated tissues.
In many cases, the exact cause of TMD is unclear.
So if your jaw begins hurting in January, it is important not to jump directly from “it's cold outside” to “the cold has inflamed my TMJ.”
Our broader guide, Why Does My Jaw Hurt? Common Causes of Jaw Pain and What to Do, explains the many other possibilities.
Could cold weather be making a tooth hurt instead?
Yes.
Not every ache in the jaw area comes from the TMJ or chewing muscles.
Cold air or cold drinks can make an already-sensitive tooth more noticeable. Tooth sensitivity can have several causes, including exposed dentin, enamel wear, gum recession, decay, a cracked tooth or other dental problems.
If the discomfort feels localized to one tooth—especially if biting, hot or cold temperatures consistently trigger it—a dental examination may be more useful than assuming the weather is aggravating TMD.
Can cold weather make you clench your jaw more?
It is possible to catch yourself tightening your jaw when you are cold, just as people may tense other muscles.
But there is not good evidence that winter itself is a universal cause of bruxism.
Bruxism is complex and can involve grinding, clenching, jaw bracing or thrusting. Awake and sleep bruxism are also considered distinct behaviors.
If you notice that you hold your teeth together while shivering, concentrating or feeling tense, simply becoming aware of that unnecessary contact can be useful while you are awake.
Our guide to teeth clenching vs. grinding explains the distinction in more detail.
What can help if your jaw feels worse in cold weather?
You do not need a special “winter TMJ treatment.”
If your symptoms are mild and seem muscular or TMD-related, NIDCR recommends beginning with simple, conservative approaches.
Try comfortable warmth if it feels good
Applying comfortable heat to the face can be one option for jaw-muscle or joint discomfort.
If a warm compress feels soothing after coming indoors from the cold, it is reasonable to use it as a comfort measure.
That does not prove that cold temperature caused the pain or that heat is treating the underlying disorder.
Reduce unnecessary jaw activity during a flare
If your jaw is already sore, temporarily reducing demanding jaw activity may help.
NIDCR recommends conservative measures such as softer foods and reducing habits including gum chewing and clenching when jaw joints or muscles are painful.
Pay attention to daytime clenching
If you find yourself holding your teeth together while working, driving or trying to stay warm, allow them to separate and let the jaw return to a comfortable resting position.
This is particularly relevant to awake clenching because you can consciously notice and interrupt the behavior.
Use gentle movement when appropriate
NIDCR includes gentle jaw stretching and strengthening among conservative TMD approaches, but there is no special set of exercises proven to treat “winter jaw pain.”
Avoid forcing the mouth wide open, aggressively pushing the jaw from side to side or exercising through sharp pain.
If exercise is appropriate for your symptoms, our evidence-focused guide, Jaw Exercises for Teeth Grinding and Clenching: What May Help, explains a gentler approach.
Should I take pain medication for cold-weather jaw pain?
NIDCR includes short-term over-the-counter pain relievers such as nonsteroidal anti-inflammatory drugs (NSAIDs) among possible conservative options for some TMD symptoms.
Whether a particular medication is appropriate depends on your health history, other medicines you take and the cause of the pain.
Follow the product directions and ask a healthcare professional or pharmacist if you are unsure whether an over-the-counter pain reliever is safe for you.
Will a night guard help jaw pain that gets worse in winter?
A night guard should not be considered a treatment for cold-weather jaw pain.
If you grind or clench your teeth and are developing dental wear or damage, an appropriately fitted night guard may be useful primarily because it protects the teeth from direct tooth-to-tooth contact.
What we should not claim is that a conventional guard:
- stops weather-related jaw pain
- relaxes the jaw muscles in everyone
- reduces pressure inside the TMJ
- stabilizes or realigns the jaw
- cures TMD
- reliably stops sleep bruxism
Oral appliances are used in some TMD treatment plans, but NIDCR notes that evidence for many TMD treatments remains limited and recommends conservative, reversible care first.
For a closer look at the evidence, see Does a Night Guard Really Help With TMJ?.
Should you track your jaw pain and the weather?
If you strongly suspect a seasonal pattern, a simple symptom diary can be useful.
You might note:
- your pain level
- where the pain occurs
- whether it is muscular, joint-like or tooth-specific
- daytime clenching
- sleep quality
- unusual stress
- temperature or major weather changes
Look for a pattern over time rather than assuming one painful day proves that the weather is responsible.
This can also give a dentist or healthcare professional more useful information if you eventually need an evaluation.
When is jaw pain probably more than the weather?
New, persistent or progressively worsening jaw pain deserves more attention than simply waiting for warmer weather.
Consider a dental or medical evaluation if you develop:
- persistent or increasingly severe jaw pain
- jaw locking or significantly restricted opening
- significant swelling
- fever or other signs of infection
- a persistent new change in your bite
- localized tooth pain or significant cold sensitivity
- a cracked, broken or loose permanent tooth
- symptoms following facial or jaw trauma
Does winter jaw pain mean your TMD is getting worse?
Not necessarily.
Pain intensity can fluctuate without the underlying joint or muscle condition structurally worsening.
The available weather research does not support treating a cold-weather flare as proof that the TMJ is deteriorating.
Symptoms matter, especially pain and loss of function, but a seasonal increase in discomfort does not tell us by itself what is happening inside the joint.
The bottom line
If your jaw hurts more when the weather turns cold, your experience may reflect a real individual pattern.
What current research does not support is a universal rule that cold temperatures cause TMD, inflame the TMJ or make everyone's jaw disorder worse.
A large 2024 population study found no significant winter increase in TMD patients, while smaller pain studies suggest that certain individuals may respond differently to combinations of temperature, humidity and atmospheric pressure.
That makes the most useful approach a personal one: notice your pattern, use simple comfort measures when appropriate and address persistent pain based on its actual cause—not the season alone.
Sources
Lee YH, Chung JW. Climate temperature and seasonal influences on the prevalence of temporomandibular disorders in South Korea. Scientific Reports. 2024.
Edefonti V, et al. Chronic pain and weather conditions in patients suffering from temporomandibular disorders: a pilot study. Community Dentistry and Oral Epidemiology. 2012.
Horváth G, Nagy K, Tuboly G, Nagy E. Pain and weather associations – Action mechanisms; personalized profiling. Brain Research Bulletin. 2023.
National Institute of Dental and Craniofacial Research (NIDCR). Temporomandibular Disorders (TMDs).
Editor’s note: Updated September 6, 2026. This article was substantially revised to reflect current research on weather and temporomandibular disorders, distinguish individual symptom patterns from established causation, remove unsupported claims about vasoconstriction and barometric pressure, clarify the role of night guards, and update conservative self-care guidance.
This article is for educational purposes and is not a substitute for individualized dental or medical care.