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Drive Smart

Under Pressure: How Summer Heat Affects Your Tires

As temperatures rise during the summer months, so does the risk of tire-related issues on the road. Heat can significantly impact tire pressure, causing it to increase rapidly and potentially leading to blowouts or uneven wear. Many drivers overlook this crucial aspect of vehicle maintenance, but understanding how heat affects your tires — and taking simple precautions — can make a big difference in safety and performance.

Here’s what you need to know to keep your tires in top shape this summer season:


  1. Check Tire Pressure Regularly

Heat causes air to expand, so check your tire pressure at least once a week during hot months—ideally when the tires are cool (before driving).

  1. Know Your Recommended PSI

Always follow your vehicle manufacturer’s recommended tire pressure, found on the driver’s side door jamb or in the owner’s manual.

  1. Use a Quality Tire Pressure Gauge

Digital or dial gauges provide more accurate readings than the stick-type ones. Keep one in your glove compartment for convenience.

  1. Avoid Overinflating Tires

Heat already increases internal pressure. Overinflated tires are more prone to blowouts and uneven wear, especially on hot pavement.

  1. Don’t Underinflate Either

Underinflated tires generate more heat and can flex too much, increasing the risk of tire failure in high temperatures.

  1. Check All Four Tires (and the Spare)

Don’t forget to check the spare tire if your car has one. Hot weather can affect all tires, even the ones not in use.

  1. Monitor for Signs of Damage

Cracks, bulges, or worn treads are more vulnerable to heat-related failure. Replace damaged tires as soon as possible.

  1. Avoid Driving on Hot Pavement for Long Periods

Long drives on hot asphalt increase the risk of overheating tires.

  1. Park in the Shade When You Can

Direct sun exposure raises tire and air pressure. Shaded parking helps keep your tires and entire vehicle cooler.

  1. Invest in Tire Maintenance

Regular rotations, alignments, and professional inspections help ensure your tires wear evenly and safely, especially during extreme weather conditions.


Keeping an eye on your tire pressure during hot weather is a small step that can make a big difference in your safety and your vehicle’s performance. Regular checks, proper inflation, and staying informed about how heat affects your tires will help you avoid unnecessary risks on the road. With just a little extra attention, you can enjoy smoother drives and peace of mind all season long.

Happy summer and safe travels!