Will Tire Pressure Decrease on Rainy Days?

[LeJuliana]

Rainy days can cause tire pressure to decrease. Here are the relevant details: 1. Precautions: Some drivers, based on experience, intentionally release some air from their car tires during the rainy season to make the tires flatter and increase the contact area. However, a larger tire contact area reduces the pressure per unit area, weakening braking power and making it harder to quickly expel rainwater between the tire and the road, thereby increasing the braking distance. When driving on highways in the rain, please do not release air to reduce pressure. 2. Optimal Tire Pressure: On rainy days or when starting a cold car, low tire temperature can cause a decrease in pressure. After driving for a while, as the tire temperature rises, the pressure may increase by about 0.1-0.2. Therefore, maintaining a tire pressure between 2.3 and 2.5 is considered optimal.