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How to Stop Feet Swelling in Hot Weather Now

feet swelling in hot weather
Swollen feet due to hot weather

Feet Swelling in Hot Weather

Causes, Prevention, and Treatment

Feet swelling in hot weather, or peripheral edema, is a condition that affects individuals across the globe, particularly during periods of hot summer. Whether enjoying a tropical vacation or enduring a scorching summer day, swollen feet can be both uncomfortable and alarming. This essay explores the causes of feet swelling, offers practical prevention strategies, and discusses effective treatments.

Causes of Feet Swelling

Heat and Humidity

High temperatures and humidity levels cause blood vessels to dilate, leading to fluid retention in the lower extremities. The body’s natural response to heat involves vasodilation, which increases blood flow to the skin’s surface to release heat and cool the body. This process, however, can also cause fluids to pool in the lower extremities, leading to swelling (Levick, 2004). This is particularly pronounced in individuals who spend extended periods outdoors or in non-air-conditioned environments during hot weather.


Inadequate water intake disrupts the delicate balance of electrolytes in our cells. Dehydration can lead to increased sodium retention, which causes the body to retain water, contributing to edema (Kleiner, 1999). Staying properly hydrated is crucial for maintaining fluid balance and preventing the build-up of fluids in the lower extremities.

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Prolonged Immobility

Whether sunbathing on the beach or sitting at a desk, prolonged periods of immobility can hinder blood circulation. When muscles are inactive, they do not help pump blood back to the heart efficiently, leading to fluid accumulation in the feet (Stewart, 2004). This is why swelling is often observed after long flights or car rides.

feet swelling hot weather
Combatting feet swelling in the summer

Excessive Salt Intake

A diet high in sodium can lead to fluid retention. Sodium attracts and holds water in the body, and an excess intake can result in water accumulating in the tissues, including those of the feet (He & MacGregor, 2010). Reducing sodium intake is an effective way to manage and prevent edema.

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Underlying Medical Conditions

Certain medical conditions can exacerbate edema, especially during hot weather. Conditions such as heart failure, kidney disease, and chronic venous insufficiency hinder the body’s ability to regulate fluids properly. These conditions can cause significant fluid retention, and the added stress of high temperatures can worsen the symptoms (Renkin, 1984).

Prevention Strategies

To keep feet comfortable and prevent swelling during hot weather, several strategies can be employed:

Stay Hydrated

Drinking plenty of water throughout the day is essential. Proper hydration helps maintain fluid balance, which is key in reducing the risk of edema. Dehydration prompts the body to retain sodium and water, leading to swelling (Manz & Wentz, 2005).

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Elevate Your Feet

When resting, elevate your feet above heart level. This position helps reduce swelling by encouraging blood flow back to the heart and minimizing fluid accumulation in the lower extremities (Bendjelid & Romand, 2003).

Choose Comfortable Footwear

Opt for breathable shoes that provide adequate support. Tight or ill-fitting shoes can impede circulation and contribute to swelling. Footwear that allows for good air circulation can help keep feet cool and reduce the risk of edema.

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Monitor Salt Intake

Being mindful of salt consumption is crucial. Reducing sodium intake helps prevent water retention. Eating a balanced diet with plenty of fruits, vegetables, and whole grains can support overall cardiovascular health and reduce the risk of swelling (Appel et al., 1997).

Move Regularly

For those with sedentary jobs, taking regular breaks to stretch and walk is important. Movement stimulates blood circulation, which helps prevent fluid build-up in the feet. Simple exercises, such as ankle rotations and calf raises, can be effective in promoting circulation.

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Effective Treatment Options

Cool Foot Soaks

Soaking feet in cool water can provide relief by reducing swelling. Adding a few drops of essential oils like peppermint or lavender can enhance the soothing effect and provide added relaxation. Cool temperatures constrict blood vessels, reducing swelling (Rennie, 2004).

Compression Socks

Graduated compression socks are designed to improve blood flow and prevent edema. They are particularly useful during long flights or extended periods of standing. These socks apply gentle pressure to the legs, helping veins and muscles move blood more efficiently back to the heart (Moloney et al., 2011).

Gentle Massage

Massaging the feet with upward strokes towards the heart can stimulate circulation and reduce swelling. This technique encourages the movement of fluid out of the swollen area and back into the circulatory system (Field et al., 1996).

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Medical Consultation

If swelling persists or worsens, consulting a healthcare professional is advisable. A doctor can determine if the swelling is due to an underlying medical condition that requires specific treatment. Diuretics, medications that help eliminate excess fluid from the body, may be prescribed in some cases (Rostand & Drüeke, 1997).

Examples of Affected Countries


India, with its scorching summers and large population, reports a significant rise in edema cases during hot weather. The high temperatures, coupled with high humidity levels, create an environment where heat-induced swelling is common. Public health initiatives often emphasize the importance of hydration and proper diet during the summer months (Government of India, Ministry of Health & Family Welfare, 2017).


Australia’s sunny climate, especially in areas like Queensland and Northern Territory, leads to frequent cases of swollen feet during prolonged exposure to heat. Public awareness campaigns often focus on the risks of dehydration and the benefits of staying cool and hydrated during the summer (Australian Government, Department of Health, 2019).

United States

In the United States, southern states such as Texas and Florida experience high temperatures during the summer months, leading to a surge in cases of feet swelling. Public health guidelines emphasize the importance of hydration, appropriate footwear, and regular movement to mitigate the risk of swelling (Centers for Disease Control and Prevention, 2017).

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Feet swelling in hot weather, while often a temporary and benign condition, can significantly impact comfort and mobility. Understanding the causes, such as heat and humidity, dehydration, prolonged immobility, excessive salt intake, and underlying medical conditions, is crucial for effective management. By implementing preventive strategies like staying hydrated, elevating the feet, choosing comfortable footwear, monitoring salt intake, and moving regularly, individuals can minimize the risk of edema. Additionally, treatment options like cool foot soaks, compression socks, gentle massage, and seeking medical advice when necessary can provide relief and prevent complications. Awareness and proactive measures are key to enjoying hot weather without the discomfort of swollen feet.


The content on this website is intended for informational purposes only and should not be taken as medical advice. Always consult with a qualified healthcare professional for personalized guidance regarding your health needs.

Works Cited

Appel, Lawrence J., et al. “A clinical trial of the effects of dietary patterns on blood pressure.” The New England Journal of Medicine, vol. 336, no. 16, 1997, pp. 1117-1124

Australian Government, Department of Health. “Sun safety.”

Centers for Disease Control and Prevention. “Heat and health.” 2017

Bendjelid, Karim, and Serge J. Romand. “Fluid responsiveness in mechanically ventilated patients: a review of indices used in intensive care.” Intensive Care Medicine, vol. 29, no. 3, 2003, pp. 375-384.

Field, Tiffany, et al. “Massage therapy reduces anxiety and enhances EEG pattern of alertness and math computations.” International Journal of Neuroscience, vol. 86, no. 3-4, 1996, pp. 197-205.

Fukuta, Hidekatsu, et al. “Prognostic value of left ventricular mass index in patients with normal left ventricular ejection fraction.” American Journal of Cardiology, vol. 97, no. 7, 2005, pp. 970-973.

Government of India, Ministry of Health & Family Welfare. “National Action Plan on Climate Change and Human Health.” 2017.

He, Feng J., and Graham A. MacGregor. “Reducing population salt intake worldwide: from evidence to implementation.” Progress in Cardiovascular Diseases, vol. 52, no. 5, 2010, pp. 363-382.

Kay, Dennis, and Maria Fiatarone Singh. “The influence of physical activity on abdominal fat: a systematic review of the literature.” Obesity Reviews, vol. 7, no. 2, 2006, pp. 183-200.

Written by Dr. Evelyn Karen

Dr. Evelyn Karen is a highly regarded Internal Medicine Physician with over 20 years of experience in Manila. Dr. Karen is passionate about patient well-being and champions innovative practices, including integrative medicine, telemedicine, and community outreach.

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