Summer is one of the best times of year to get outside and enjoy running.
Long evenings, beautiful scenery and dry trails make it tempting to head out whenever you can. But as temperatures rise, so do the demands on your body.
Whether you’re training for a race, enjoying a social run or simply trying to stay consistent, running in hot weather requires a slightly different approach.
The good news is that you don’t need to stop running altogether. With a few simple adjustments, you can continue training safely and still enjoy every mile.
1. Slow Down
One of the biggest mistakes runners make is trying to maintain their usual pace.
Your heart has to work much harder in the heat as it sends blood to both your muscles and your skin to help cool your body.
That means the same pace will feel much harder than it would on a cooler day.
Don’t worry about your watch.
Run by effort rather than pace.
2. Start Earlier or Later
Whenever possible, avoid the hottest part of the day.
Early mornings and later evenings are usually several degrees cooler and much more comfortable.
As an added bonus, you’ll often enjoy quieter roads and more peaceful running routes.
3. Drink Before You’re Thirsty
Hydration starts long before you leave the house.
Drink water consistently throughout the day rather than trying to catch up just before your run.
For longer runs of more than an hour, consider taking fluids with you or planning a route where you can refill bottles.
4. Dress for the Conditions
Light-coloured, technical clothing helps your body regulate temperature more effectively than heavy cotton.
A lightweight running cap and sunglasses can also make a huge difference when the sun is strong.
5. Use Sunscreen
Even on cloudy days, UV levels can be surprisingly high.
A good sweat-resistant sunscreen helps protect your skin during longer training runs.
Don’t forget the backs of your neck, ears and calves.
6. Know the Warning Signs
If you begin to feel dizzy, nauseous, confused or develop chills despite the heat, stop running immediately.
Find shade, cool down and rehydrate.
There’s no shame in cutting a run short.
Your health always comes first.
7. Adapt Your Training
Heat itself becomes a training stimulus.
That means an easy run in warm conditions can provide similar effort to a harder run on a cooler day.
Don’t be afraid to shorten sessions or replace intervals with an easier run during particularly hot spells.
8. Recover Properly
After your run, focus on cooling down gradually.
Drink plenty of fluids, replace lost electrolytes if you’ve been sweating heavily and eat a balanced meal to support recovery.
9. Run With Others
Summer is a brilliant time for social running.
Running with a group is not only more enjoyable but also safer if someone begins to struggle in the heat.
At Carn Runners, our social runs are a great way to enjoy the miles while looking out for one another.
10. Listen to Your Body
The weather changes.
Your body changes.
Some days will simply feel harder than others.
Learning when to ease off is part of becoming a better runner.
Consistency over months is far more important than forcing one uncomfortable session.
Enjoy Your Summer Running
Running in hot weather doesn’t have to be something to fear.
By slowing down, staying hydrated, choosing sensible running times and listening to your body, you can continue building fitness safely throughout the summer.
Remember, the goal isn’t to beat the heat.
It’s to enjoy your running and arrive home healthy, smiling and ready for the next adventure.
Whether you’re training for your next race or joining us on one of our social runs, we hope to see you out enjoying the Cornish sunshine this summer.
