when should tyre pressure be checked

Tyre pressure should be checked regularly, ideally once a month, and always when the tyres are cold (car parked for a few hours or first thing in the morning).

When exactly to check

• Routine checks: Most motoring and tyre manufacturers recommend checking tyre pressure about once a month to stay ahead of slow air loss and temperature changes.

• Before long trips: Check pressures before motorway runs, holidays, or any long-distance driving so you’re not starting a big journey on underinflated tyres.

• After big temperature swings: Pressure changes by roughly 1–2 psi for every 10-degree change in temperature, so a sudden cold snap or heatwave is a good trigger to re-check.

• When something feels “off”: If the steering feels heavy, the car pulls to one side, or you see a tyre looking slightly “squashed”, check pressure immediately.

• Don’t forget the spare: If you have a spare wheel, include it in your regular checks so it’s usable in an emergency.

Why tyres must be “cold”

• Tyres warm up as you drive, which makes the air inside expand and raises the reading on the gauge.

• If you check after a long drive, you might wrongly think the tyres are overinflated and let air out, leaving them genuinely underinflated once they cool.

• To get an accurate reading, check when you’ve driven less than about 2 km or when the car has been parked for at least 3–4 hours.

Quick practical routine

1. Pick one day each month (for example, first weekend) as your “tyre check day”.

2. Check pressures first thing in the morning at home or at a nearby petrol station.

3. Compare readings with the pressures listed on your car’s door frame, fuel flap, or owner’s manual.

4. Top up any tyre that’s below spec, and have a garage inspect the tyre if you see a big or repeated drop.

SEO-focused extras

• Focus keyword use: Drivers often ask “when should tyre pressure be checked” on forums and Q&A sites, and the consensus is “monthly, cold tyres, plus before long trips.”

• Latest discussion angle: Recent garage and dealer blogs in 2025 still repeat the same guidance but increasingly suggest checking even every 2 weeks if you drive a lot or are about to go on a road trip.

“Check monthly, check cold, and check before long journeys” is the simple rule that keeps you on the safe side.

TL;DR: Check tyre pressure at least once a month, always on cold tyres, and again before long journeys or after big temperature changes, including your spare wheel.

Information gathered from public forums or data available on the internet and portrayed here.