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Tyre NorthamptonWhile we may welcome the sunshine and blue skies of a British summer, your car’s tyres don’t always enjoy the heat quite as much. Warmer weather brings unique challenges that can impact tyre safety, performance, and longevity. If you’re planning road trips, family getaways, or simply more time on the road, it’s crucial to know how rising temperatures affect your tyres — and what you can do to stay safe.
Here are five key ways hot weather can impact your tyres, and what you should do about it:
1. Increased Tyre Pressure
As temperatures rise, so does the air pressure inside your tyres. For every 10°C increase in temperature, your tyre pressure can rise by up to 1 PSI (pound per square inch). While that might sound small, overinflated tyres can lead to a harsher ride, reduced grip, and uneven wear.
What to do:
Check your tyre pressure more regularly in summer – ideally every two weeks. Always check when the tyres are cold and use a reliable gauge. Inflate to the manufacturer’s recommended level (found in your car manual or on the driver’s door frame).
2. Risk of Blowouts
Hot tarmac and increased tyre pressure make a dangerous combination, especially on long motorway journeys. Weakened or under-maintained tyres are more likely to suffer a blowout when stressed by high temperatures.
What to do:
Inspect your tyres for visible signs of damage – including bulges, cracks, or exposed cords. If your tread is low or uneven, it’s time to replace them. Never ignore vibrations or pulling while driving, as these can be early warning signs.
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3. Faster Tread Wear
Hot roads can accelerate tread wear, especially if your tyres are not properly aligned or inflated. This reduces traction and increases stopping distances — a serious concern if you hit a sudden summer downpour.
What to do:
Check your tread depth regularly. The legal minimum in the UK is 1.6mm, but most experts recommend replacing tyres at 3mm for optimal safety. Use a 20p coin as a quick check — if you can see the outer band, your tread may be too low.
4. Softening of Rubber Compounds
In extreme heat, the rubber in tyres can soften, especially if they’re older. This can make them more prone to damage and reduce their ability to grip the road, particularly when cornering or braking.
What to do:
If your tyres are more than five years old, have them inspected by a professional. Look for signs of ageing like cracking or a faded appearance, and consider switching to summer or performance tyres if you frequently drive long distances in warmer weather.
5. More Frequent Tyre Failures on Long Trips
Summer is peak road trip season, which means longer drives and heavier loads — both of which put extra strain on tyres. Combined with heat, this can lead to punctures, flats, or full blowouts.
What to do:
Before any long trip, check your tyres thoroughly. Ensure your spare (if you have one) is also in good condition, and consider keeping a tyre repair kit or inflator in the boot just in case.
Summer driving in the UK isn’t as extreme as in hotter countries, but that doesn’t mean your tyres don’t need attention. A few simple checks can go a long way in keeping your journeys safe, smooth, and stress-free.