Can the Rain Really Make Your Joints Ache? The Science Behind Weather and Joint Pain
"I knew it was going to rain. My knee told me."
If you've ever said this, you're certainly not alone.
For generations, people have blamed aching knees, stiff fingers and sore hips on changes in the weather. Perhaps your joints seem to complain when the temperature drops, or maybe you can somehow predict a rainy day before checking the forecast.
But is there actually any truth behind the idea that weather can make your joints hurt?
Interestingly, the answer isn't quite as straightforward as you might think.
Does Rain Really Cause Joint Pain?
There is some evidence that weather can influence pain in certain people, particularly those with osteoarthritis.
Research has looked at several different weather factors, including temperature, humidity, atmospheric pressure and rainfall.
A 2023 systematic review found associations between weather conditions and osteoarthritis pain, with temperature and atmospheric pressure showing the clearest relationships. However, the effects were relatively small. (pubmed.ncbi.nlm.nih.gov)
Other research has found different results.
A large 2024 review found no clear association between weather conditions and the risk of knee pain, low back pain or rheumatoid arthritis. (pubmed.ncbi.nlm.nih.gov)
So the research doesn't support the idea that rain directly causes joint pain.
But that doesn't necessarily mean you're imagining it.
Why Might Some People Feel Worse When the Weather Changes?
Pain is complicated.
It isn't simply a direct measurement of what is happening inside a joint. How much pain we experience can be influenced by sleep, stress, activity levels, previous injuries and how sensitive our nervous system has become.
Weather may be another factor for some people.
Studies suggest that some individuals are more "weather sensitive" than others. What causes noticeable symptoms for one person may have absolutely no effect on someone else.
This may explain why you can have two people with very similar arthritis, yet only one insists they can predict rain with their knees.
What About Damp Weather?
This is probably the most common explanation we hear:
"It's the damp getting into my joints."
Fortunately, you don't need to worry about your knees filling up with rainwater.
There is some research linking higher humidity with increased osteoarthritis pain, but the relationship is relatively small and inconsistent. (pubmed.ncbi.nlm.nih.gov)
So while cold, damp weather may coincide with increased symptoms, we can't say that moisture is literally getting into the joint and causing the pain.
Could Changes in Air Pressure Be Responsible?
This is one of the more interesting theories.
As weather systems move through, atmospheric pressure changes.
Some researchers have suggested that these changes may influence tissues around joints or alter the way pain is perceived. There is some evidence linking atmospheric pressure with osteoarthritis symptoms, although studies don't consistently agree. (pubmed.ncbi.nlm.nih.gov)
We still don't fully understand why this might happen.
And importantly, a change in atmospheric pressure isn't damaging your joint.
It may simply make an already sensitive joint feel more noticeable.
Is Cold Weather Part of the Problem?
Possibly - but perhaps not in the way you think.
When the temperature drops, we naturally tend to move differently.
You might:
Spend more time sitting indoors.
Walk less.
Spend longer in one position.
Tense your muscles because you're cold.
All of these things can contribute to stiffness.
So sometimes the weather may not be directly causing your pain at all.
It may simply be changing your behaviour.
And if you already have arthritis or another musculoskeletal problem, you may notice the difference more.
Why Does Arthritis Hurt More on Some Days Anyway?
This is an important point.
Joint pain naturally fluctuates.
You can have a good day followed by a bad day without anything dramatic changing inside the joint.
Your activity levels, sleep, stress, mood, general health and recent physical demands can all influence how painful your symptoms feel.
So when the rain arrives at exactly the same time as your knee starts aching, it can be very tempting to blame the weather.
It may be responsible.
It may be coincidence.
Or it may be a little bit of both.
What Can You Do When Your Joints Ache?
If you notice that your joints tend to complain during cold or wet weather, there are some simple things that may help.
Keep moving
When it's cold and raining, the sofa can become extremely persuasive.
But gentle movement can help reduce stiffness and maintain joint function.
Walking, swimming, cycling, mobility exercises or other activities you enjoy can all be useful.
You don't necessarily need to exercise harder - just keep moving regularly.
Keep warm
If cold temperatures make your joints feel stiff, keeping warm may help you feel more comfortable.
A warm shower, bath or heat pack can provide temporary relief for some people.
Don't let the forecast dictate your activity
If you have osteoarthritis, regular exercise is one of the most effective ways to maintain strength, mobility and function.
A rainy day doesn't mean your joints need a day off.
If walking outside isn't appealing, find another way to move.
Look at the bigger picture
If you notice a pattern between your pain and the weather, try paying attention to other factors too.
How did you sleep?
How active were you?
Have you been doing more than usual?
Have you been sitting for longer?
You might discover that your knee isn't actually predicting the weather at all.
It might just be telling you that you spent three hours gardening yesterday.
So, Can the Weather Really Affect Your Joints?
Possibly - but probably not quite in the way we've traditionally thought.
There is evidence that changes in temperature and atmospheric pressure may influence pain in some people, particularly those with osteoarthritis. However, the effects appear to be relatively small, and other research has found no meaningful relationship.
Most importantly, rain doesn't cause arthritis and dampness isn't damaging your joints.
If your symptoms genuinely seem to change with the weather, you're not necessarily imagining it. But your joints are influenced by far more than what's happening outside your window.
So next time your knee starts aching and you hear the rain tapping against the window, you can blame the weather if you like.
Just remember to give your knee some credit too.
It might be a weather forecaster. But it could also just be asking you to get off the sofa and move.
If you're experiencing persistent joint pain or stiffness and would like to understand what's causing it, we're happy to help.
Or click here to get in touch with our team - we’re always happy to help.
Comments