5 Safety Tips for Exercising in the Heat

Hi, I’m Kat, a physiotherapist and co-founder of Lake Therapy. Summer brings long days, bright sunshine, and the perfect excuse to get outdoors. Whether you’re training for a race, hiking with friends, or enjoying a sunny walk, there’s something energising about moving in the warmth. But with higher temperatures comes a greater risk of dehydration, heat exhaustion, and fatigue. Knowing how to stay safe while exercising in the heat is key to keeping your body healthy and your workouts enjoyable.

You may also find feeling lightheaded during workouts and the benefits of exercising outdoors useful.

Here are five simple tips to help you stay cool, hydrated, and strong during your summer workouts.

1. Choose the Right Time

The hottest part of the day usually falls between 10 a.m. and 4 p.m. If you can, avoid exercising outdoors during these hours. Instead, aim for early mornings or later evenings when the sun is lower, temperatures are cooler, and your body can perform more comfortably.

If you have to train mid-day, find shaded routes or take your workout indoors. Small changes to your routine can go a long way toward safer exercising in the heat.

2. Stay Hydrated

Hydration is your body’s first line of defence against heat. Make sure to drink water before, during, and after every session. If you’re sweating heavily or exercising for more than an hour, a drink with electrolytes can help replenish essential minerals like sodium and potassium.

A good rule of thumb: if you’re feeling thirsty, you’re already mildly dehydrated. Sipping regularly throughout your activity will help maintain your energy and performance.

3. Dress Smart

When exercising in the heat, the clothes you wear can make a big difference. Choose lightweight, breathable, and moisture-wicking fabrics that allow sweat to evaporate and keep your body cool.

Stick to lighter colours—they reflect sunlight rather than absorb it—and don’t forget essentials like a wide-brimmed hat, UV-protective sunglasses, and water-resistant sunscreen. Keeping your skin protected helps regulate temperature and prevent heat-related irritation.

4. Listen to Your Body

It’s easy to get caught up in a workout and push through discomfort, but when it’s hot, those signals matter. If you start feeling dizzy, nauseous, light-headed, or unusually tired, stop immediately, find some shade, and drink water. These are early signs of heat exhaustion, and ignoring them can lead to more serious issues.

Heat puts extra strain on your body, even at moderate intensity. So, when exercising in the heat, adjust your pace, take breaks often, and give yourself permission to slow down—it’s not a setback, it’s smart training.

5. Know Who’s Most at Risk

Some people are more sensitive to high temperatures, including children, older adults, pregnant individuals, and anyone managing chronic health conditions. If this sounds like you—or someone you exercise with—it’s important to take extra precautions. Always check with a healthcare professional if you’re unsure how much activity is safe for your circumstances.

Being mindful and prepared allows everyone to enjoy the benefits of exercising in the heat without unnecessary risk.

Your Next Step

Summer workouts can feel amazing when you’re confident in your body’s limits and safety. If you’re dealing with pain, fatigue, or recovery challenges that make outdoor exercise difficult, physiotherapy can help you stay active without overdoing it.

You can book an Initial Consultation to discuss your training and recovery goals, or arrange a free Discovery Call with one of my team to chat about how to keep your body strong, cool, and balanced this season.

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p data-start=”4197″ data-end=”4212″>Warmly,
Kat