As the British summer properly takes hold in late May 2026, runners across the country are enjoying the benefits of warmer weather: longer evening runs, drier trails, and that wonderful feeling of running in just a t-shirt and shorts. However, with the rise in temperature comes a less welcome side effect — significantly sweatier feet.

While sweating is a natural and healthy response to exertion, excessive foot sweat in warmer conditions can quickly become problematic. Unlike in winter, when moisture often comes from external rain, summer sweat is continuous and trapped inside the shoe. This creates a persistently damp environment that softens the skin, dramatically increases friction, and raises the likelihood of hotspots turning into blisters mid-run. Many runners also notice an increase in odour, maceration (where skin becomes white and wrinkly), and a higher risk of fungal infections such as athlete’s foot, which thrive in warm, moist conditions.

The problems extend beyond immediate discomfort. Softened skin is far more vulnerable to shear forces, meaning small rubs that would be inconsequential in cooler weather can escalate quickly on longer summer runs or races. Swelling caused by heat can make shoes feel tighter, further increasing pressure points. For those training consistently through the summer months or preparing for events like coastal races, trail ultras, or park-based challenges, unchecked sweaty feet can quietly undermine training consistency and race-day confidence.

Experienced runners have learned that managing summer sweat is less about stopping perspiration (which is impossible and undesirable) and more about controlling its consequences. The key lies in minimising the time moisture spends trapped against the skin and inside the shoe.

How to manage sweaty feet effectively this summer

• Choose moisture-wicking socks (merino wool blends perform particularly well in warm conditions).
• Dry shoes thoroughly after every run — this is critical in summer when shoes may feel dry on the outside but remain damp inside. A dedicated shoe dryer such as the Atacama can restore shoes to a fresh state in around 90 minutes.
• Rotate trainers generously so no pair stays damp for long.
• Consider applying a small amount of SOS Athletic Toe Tape to high-friction areas before longer or hotter runs.

Summer running should feel liberating rather than compromised by sore, irritated feet. By addressing the effects of increased sweating proactively, you can enjoy the season’s long, sunny miles with greater comfort and fewer setbacks.

Are you noticing your feet sweating more as the weather warms? What strategies have you found helpful for managing sweaty feet during summer runs? Share your experiences with us.