Summer runnin’ – training in the heat


Give us the sun, but not the heat.  Give us cool temps, but no wind or rain. Just one light breeze topped with slightly overcast conditions and a side of temperatures in the 60’s, please and thanks!


half marathon


We runners are particular creatures. But at the same time we’re willing to do crazy things to accomplish a goal, like run in all types of imperfect weather conditions.  When training for winter races like the Carlsbad Marathon & Half in January, you get ideal race day weather but training days are often cold, dark and sometimes wet. 


america's finest city


Then there’s the AFC Half Marathon in San Diego.  The idealistic summertime race complete with sunshine, sparkling harbor/bay/ocean views, sailboats galore, misting stations, palm trees and oh yeah – warm weather!


Lookin’ hot 😎

“I love training in the heat” said no one ever! It’s not our favorite, but there are benefits to it as long as health and safety are always held as a priority.

“Heat creates a training stimulus, like speed, hills, or altitude, that can enhance your fitness and running prowess. Rather than thinking of it as an uncomfortable annoyance, consider it a tool.”

Changing our perspective will always have a positive effect on our training because as we know, running is extremely mental.  So if you start to view heat training as positive, you can embrace the “unpleasant-ness” of it.  After all, gaining strength doesn’t happen by remaining comfortable, it’s when you’re especially uncomfortable that you start to get a training effect.


america's finest city


Benefits of heat training

Your body will learn to cool itself quicker (thanks sweat!)

Chris Minson, a professor of human physiology at the University of Oregon, found through his research that heat training creates inexplicable changes to the heart’s left ventricle, which helps to increase oxygen delivery to the muscles. In addition, he says that athletes who train in warm temperatures generally get better at regulating heat by sweating earlier or developing a colder resting body temperature.

You’ll become a more efficient runner and feel stronger in cooler temps

Studies have found that, in addition to an increased rate of perspiration, training in the heat can increase an athlete’s blood plasma volume (which leads to better cardiovascular fitness), reduce overall core temperature, reduce blood lactate, increase skeletal muscle force, and, counterintuitively, make a person train better in cold temperatures.

Get your vitamin D

Vitamin D is essential for bone health, and insufficiency is linked to increased body fat and decreased muscle strength. Get your daily dose on a sunny run; just don’t overdo it. Wear sunscreen.

Cooling station just past mile 10 of the AFC Half Marathon!


Important reminders

Know your limit and don’t push yourself

One of the most important (and sometimes hardest) parts of running in warm weather is to not overdo it.  Getting competitive with yourself and wanting to push may be your natural instinct, but for the sake of your well-being you need to fight that desire.  Make a conscious effort to tune in to your body and check on your breathing.

Be compassionate with yourself

Prior to a warm weather workout or race day, adjust your expectations and prepare your mindset that you may need to slow down or even walk a little.  Don’t let yourself feel badly or consider it a failure; it’s safety.

Hydrate hydrate hydrate… did we mention to hydrate?!
Start hydrating days before race day and continue chugging water and electrolytes after your done. Make it a habit to start with a full glass of water or electrolyte drink before you even leave the house.

Additional resources to train and race your best:


san diego running

Leave a Reply