Recommended psi for my tires?

Tiny
ALYLAROSA485
  • MEMBER
  • 2025 KIA FORTE
  • 800 MILES
Recommended psi for my car is 32 front 31 rear and mine read about 33-32 in front and back in 80 degree weather but read 36-33 a month or so ago. Would the consistent 30-40 degree weather cold front’s we’ve been having this past month effect the psi that much even if it’s hot out now?
Sunday, January 25th, 2026 AT 11:49 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,189 POSTS
Hi:

Colder temperatures cause the air to contract and become denser. As a result, the pressure drops. So, in general, yes, the temps cause issues with tire pressure. Usually, a tire will drop 1 psi for every 10 degrees F of temperature drop.

Keep in mind, the cold won't cause it to increase in pressure. Is that what has happened?

Let us know.

Joe
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Sunday, January 25th, 2026 AT 6:44 PM

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