Overview

• The Met Office predicts highs of around 25C by Wednesday and up to 27C on Friday as a warm, humid air mass moves across England.
• Tyre pressure increases by about 0.1 bar (1.45 PSI) for every 10 C rise in temperature, meaning summer heat can push pressures beyond safe limits.
• Drivers should confirm the manufacturer’s recommended pressure—found on a label inside the driver’s door or on the fuel cap—before adjusting tyres.
• Experts recommend checking tyre pressure when tyres are cold, meaning the vehicle has been stationary for at least three hours, and repeating checks during the heatwave.
• Overinflated tyres heighten blowout and traction risks in hot conditions, while underinflation can reduce fuel efficiency and accelerate tyre wear.