Why Do Cold and Damp Weather Increase Joint Pain?

As temperatures drop and humidity levels fluctuate, the fluid pressure inside your joints is directly affected, stimulating nerve endings and causing a sensation of pain. A drop in barometric pressure, in particular, causes the tissues around the joints to expand slightly, significantly triggering joint pain complaints in cold weather. This condition closely affects not only older adults with osteoarthritis but also patients of all ages with inflammatory rheumatic diseases.

• Low barometric pressure causes the tissues around the joint to expand and press on nerves.
• Cold weather reduces the fluidity of joint fluid, creating stiffness and restricted movement in the joints.
• High humidity makes nerve endings more sensitive to pain.
• Dressing in layers and exercising regularly indoors greatly alleviate complaints.
• You should consult a specialist for persistent pain accompanied by swelling, redness, and increased warmth.

What Are Rheumatism and Joint Pain in Damp Weather?

Commonly known as "knees aching before it rains," this condition is a physiological response grounded entirely in science. Our joints are closed capsule structures filled with cartilage tissue that prevents bones from rubbing against each other, and synovial fluid that lubricates this system. When the outside air pressure (barometric pressure) drops, the weight of the air pressing against our bodies also decreases. This reduction allows the tissues inside the joint capsule to expand at a microscopic level, putting pressure on the pressure-sensitive nerve endings within the capsule.

These pressure changes happen much faster and more sharply, especially in damp weather. The main mechanism behind the increase in rheumatism complaints in damp weather is that damaged or inflamed joint tissue is much more sensitive to these pressure changes compared to a healthy joint. While a healthy joint can tolerate these minor expansions, in a joint with cartilage wear or active inflammation, this is transmitted directly to the brain as a pain signal. Quite common in the general population, this condition significantly increases visits to the relevant hospital departments during the cooling autumn and winter months.

Causes and Risk Factors of Joint Pain

Another major effect of cold weather on joints is that it changes the consistency of joint fluid (synovial fluid). Much like motor oil, this fluid ensures that joints move smoothly. When the temperature drops, the fluidity of this fluid decreases, meaning it thickens. The thickened fluid cannot provide adequate lubrication during joint movements, which increases friction and, consequently, pain.

Furthermore, when our bodies are exposed to cold weather, blood flow is redirected to the core—the torso—to keep vital organs warm. Just like the effects of cold weather on the skin barrier, the blood vessels in the arms and legs constrict and narrow. Reduced blood flow to the joints means these areas receive less warmth and the tissues are less nourished, lowering the pain threshold. A sedentary lifestyle, excess weight, previous joint traumas, and genetic predisposition are the main factors that increase the risk of experiencing joint health issues in cold weather.

Symptoms of Cold Weather-Related Joint Complaints

Joint complaints that emerge in cold and damp weather vary depending on the person's underlying health condition. The most common symptom is joint stiffness and restricted movement, especially felt upon waking up in the morning. If this stiffness lasts less than half an hour, it is usually caused by calcification (osteoarthritis). However, if morning stiffness lasts for more than an hour, it could be a sign of an inflammatory rheumatic disease.

Knee pain is one of the most frequent complaints in cold weather. A stinging, aching, and feeling of weakness in the knees become prominent, especially when going up and down stairs, standing up after sitting for a long time, or walking up a slope. While mild symptoms generally present as aches that only occur during movement, severe symptoms include visible swelling in the joint, restricted mobility, and throbbing pain that persists even while resting. The fingers, wrists, neck, and lower back are other joint groups most affected by the cold.

How Does the Diagnostic Process Work at the Hospital?

A comprehensive medical evaluation is essential to determine whether joint pain is caused by weather changes or a serious underlying rheumatic disease. Your physician will first conduct a physical examination to check for swelling, increased warmth, redness, and range of motion in the joints. Which joints are affected and whether the pain is symmetrical (for example, both knees hurting at the same time) provide critical clues for diagnosis.

Various laboratory and imaging methods are used for a definitive diagnosis. In addition to CRP and Sedimentation tests, which show the level of inflammation in the blood, specific blood tests such as Rheumatoid Factor (RF), Anti-CCP, uric acid, and HLA-B27 are requested if inflammatory rheumatism is suspected. During the imaging phase, an X-ray is taken to view the bone structure and any narrowing in the joint space. When it is necessary to examine soft tissues, cartilage damage, and increased intra-articular fluid in detail, ultrasonography or Magnetic Resonance Imaging (MRI) methods are utilised.

Treatment and Preventive Measures in Daily Life

The goal of treating joint pain caused by weather changes is to manage the pain and preserve joint function. The most effective measure you can take at home is to keep your joints warm. Instead of wearing a single thick piece of clothing, dressing in layers with cotton or woollen clothes that trap body heat is much more effective. Applying a hot water bottle or a hot towel to aching joints for 15-20 minutes a few times a day speeds up blood flow, relaxes the muscles, and increases the fluidity of synovial fluid.

Inactivity is the biggest enemy that increases joint stiffness. Therefore, low-impact exercises such as swimming, yoga, Pilates, or brisk walking should be done indoors during the winter months. However, having a health check-up before starting sports to determine the most suitable exercise programme for your current joint condition prevents injuries. In the medical treatment phase, pain relievers and anti-inflammatory drugs (NSAIDs), locally acting gels, or specific rheumatology medications that alter the course of the disease if there is an underlying inflammatory rheumatism, as recommended by your physician, are used.

Complications and Risk Groups

Ignoring joint pain and remaining inactive in cold weather can lead to serious complications in the long run. In patients who avoid using their joints due to pain, the muscles supporting the joint weaken over time (muscle atrophy). The weakening of the muscles causes an increase in the load on the joint and accelerates cartilage breakdown. This vicious cycle paves the way for permanent movement restriction and joint deformities over time.

Individuals over the age of 50 with osteoarthritis, as well as those diagnosed with rheumatoid arthritis, ankylosing spondylitis, and gout, are in the highest risk group. Additionally, people who have experienced a meniscus tear, ligament injury, or bone fracture in the past may experience a lifelong sensitivity to weather changes in their damaged joints, even if they have healed. Fibromyalgia patients also feel a significant increase in widespread body pain in cold and damp weather.

When to See a Doctor?

Although not every joint ache is an emergency, some symptoms can be harbingers of a serious underlying problem or an acute flare-up. You should see a specialist without delay if you experience any of the following symptoms:

• Sudden, severe swelling, intense redness, and noticeable warmth to the touch in the joint.
• Pain that lasts for more than three days despite painkillers and hot compresses, and wakes you up from sleep at night.
• Inability to bear weight on the aching joint or move that limb (arm, leg, finger) at all.
• Unexplained high fever, chills, fatigue, or weight loss accompanying joint pain.
• Joint stiffness in the mornings that lasts longer than an hour and is difficult to loosen up during the day.

If joint pain is accompanied by a high fever of 39 degrees or above, confusion, severe shivering fits, or if a sudden deformity develops in the joint after a trauma, you should immediately call the 112 Emergency Call Centre or visit the nearest hospital's emergency department, suspecting septic arthritis (intra-articular infection) or a fracture.

Management of Rheumatic Diseases at BHT CLINIC

It is of great importance to get support from an expert team for the accurate diagnosis and effective treatment of joint and muscle pains that increase in cold weather. In our Rheumatology department, the diagnosis and treatment of all joint diseases, from osteoarthritis to inflammatory rheumatisms, are carried out at international standards. Thanks to our advanced technology laboratories and radiology unit, the source of your pain is identified quickly and reliably.

Adopting a multidisciplinary approach at our hospital, a coordinated treatment plan is created with our physical therapy, orthopaedics, and nutrition specialists when necessary. For unexpected and severe pain, traumas, or suspected joint infections presenting with high fever, our fully equipped emergency department, serving 24/7, is always by your side. For a comprehensive examination, you can call our call centre at 0850 811 34 00 or plan your treatment by booking an appointment through our website.

Frequently Asked Questions

Why do my knees ache before it rains?

The barometric pressure in the air drops before it rains. This drop in pressure causes the tissues inside the knee joint to expand slightly and put pressure on the nerve endings, leading to an aching and painful sensation.

What is good for rheumatism pain in cold weather?

Keeping the joints warm, dressing in layers with woollen or cotton clothes, applying a hot water bottle, and doing light exercises indoors speed up blood flow and alleviate rheumatism pain.

Does damp weather trigger inflammatory rheumatism?

Yes, high humidity and pressure changes can make the nerves in inflamed joint tissues more sensitive to pain, triggering rheumatism complaints and flare-ups.

Does joint fluid decrease in the cold?

The amount of joint fluid does not decrease in cold weather, but its consistency thickens. Because this less fluid liquid cannot provide adequate lubrication during joint movements, friction and the feeling of stiffness increase.

Do only the elderly suffer from joint pain in cold weather?

No, although those with age-related osteoarthritis are affected more frequently, young people with inflammatory rheumatism, individuals who have had sports injuries, and fibromyalgia patients can also experience cold weather-related joint pain at any age.

This article is for informational purposes only; please be sure to consult your doctor for diagnosis and treatment.