It’s late July and the UK has finally delivered a proper stretch of warm weather. You head out for what should be a joyful summer run. Longer evenings, lighter kit, the sense that training is somehow easier. Half an hour in, though, something shifts. Your feet feel heavier. The arches start to ache earlier than usual. Shoes that felt perfect in May now seem tighter. By the time you’re home, the soles of your feet are warm to the touch and slightly swollen.

This is one of the most common (and least discussed) summer running experiences in Britain. Heat changes how your feet behave. Blood vessels dilate, fluid pools more easily, and the combination of warmer air and higher sweat rates creates a perfect environment for mild swelling. Soft, warm skin is more prone to friction, and damp shoes that stay damp overnight turn minor discomfort into multi-day niggles. Many runners notice it most on consecutive days of warm weather rather than during a single hot session.

The good news is that the same conditions that cause the problem also make the solution straightforward. Runners who treat post-run recovery as seriously as the run itself tend to bounce back faster. The key is removing moisture quickly and thoroughly. Leaving sweaty shoes to “air out” in a warm hallway or car boot often does the opposite of what you want. It creates a humid microclimate where bacteria thrive and shoes stay soft and heavy. Getting them properly dry, ideally with gentle warm air that reaches inside the midsole and upper, resets the environment for the next day.

A simple evening routine makes a noticeable difference. Kick the shoes off as soon as you walk through the door. Pull the insoles if possible. Get them drying while you shower or stretch. The Atacama’s combination of targeted airflow and ozone mode is particularly useful here: it dries the shoes and reduces the bacterial load that thrives in warm, damp conditions, so they feel fresher the next morning rather than simply less wet. Pair that with light taping on any known pressure points before longer runs and most of the summer swelling issues stay manageable.

Heat also changes how you should think about effort. Many experienced UK runners deliberately keep some summer sessions easy precisely because the feet are under extra load. Saving the hard efforts for cooler mornings or evenings protects the small muscles and tendons that take the brunt of the swelling. The result is more consistent training through July and August instead of the classic mid-summer dip caused by sore feet.

Peak summer is too good to waste on frustrated recovery days. Treat the heat with respect, give your feet the drying and protection they need, and those long, light evenings become the best part of the training year rather than the most frustrating.