Motorists across England are being urged to complete one essential check on their vehicle before Sunday, as temperatures are set to soar as high as 30C this weekend. The Met Office has forecast a dry and sunny spell for much of England and Wales, with the southeast potentially reaching the low 30s on Sunday. The warm conditions are expected to continue into the bank holiday Monday, before cooler weather arrives from Tuesday.
Why Checking Tyre Pressure Is Crucial in Hot Weather
As temperatures rise, the air inside tyres expands, increasing tyre pressure. Driving with overinflated tyres can lead to a less comfortable ride and, more critically, increase the risk of a dangerous blowout. That is why motorists are advised to verify that their tyres are inflated to the manufacturer's recommended pressure before hitting the road in scorching weather.
The recommended tyre pressure for your vehicle is typically found on a label inside the driver's side door frame, on the fuel cap, or in the owner's manual. Some newer vehicles may display this information on the dashboard. The label will show the appropriate pressure for your car and its load.
How to Check Tyre Pressure Correctly
Always check tyre pressure when the tyres are cold, meaning the vehicle has not been driven for at least three hours. This ensures an accurate reading. Use a reliable pressure gauge and compare the reading with the manufacturer's recommendation. If the pressure is too low, inflate the tyres using an air compressor. If it is too high, release some air by pressing the valve stem pin with a screwdriver or using a pressure gauge. Remember to check the spare tyre as well, as it can lose pressure over time.
The Science Behind Tyre Pressure and Temperature
For every 10C increase in temperature, tyre pressure typically rises by about 0.1 bar (1.45 PSI). This is because warmer air molecules move faster and take up more space. While it might be tempting to reduce pressure in hot weather, it is essential to stick to the manufacturer's specified levels. Overinflated tyres can reduce traction and cause uneven wear, while underinflated tyres can overheat and fail.
Signs of an Overheated Tyre
Tyres are black and made of materials that absorb heat efficiently. If a tyre feels hot to the touch, it may be nearing overheating. In such cases, pull over safely and allow the tyres to cool down. Releasing a small amount of air can help, but be cautious: once temperatures return to normal, the tyre may become underinflated.
Specialists at Protyre recommend checking tyre pressure more frequently during hot weather, especially during periods of intense heat. By taking a few minutes to check your tyres before driving this weekend, you can help ensure a safer journey for you and your passengers.
