Will the tire pressure decrease in rainy days?

Will decrease. In rainy days or when a cold car starts, low tire temperature will lead to low air pressure. After driving for a certain distance, the tire temperature will increase and the tire pressure will increase by about 0. 1-0.2. As long as the tire pressure value is kept at around 2.3-2.5, it will be fine.

Tire pressure, strictly speaking, refers to the pressure of air inside the tire.

Now, many tires are not inflated. For these tires, the tire pressure requirements are strict. Inflated tires are related to seasonal changes. Moreover, the tire pressure is closely related to the comfort and bearing capacity of the car, which will also affect the tire life.

Air pressure is the key to tires. Too high or too low will shorten the service life of tires. If the air pressure is too low, the deformation of the carcass will increase, and cracks will easily appear on the sidewall. At the same time, it will produce buckling movement, lead to excessive heating, promote rubber aging, tire cord fatigue and cord fracture. It will also increase the contact area of the tire and accelerate the wear of the shoulder.

If the air pressure is too high, the tire cord will be excessively stretched and deformed, and the elasticity of the carcass will decrease, which will increase the load when the car is running. Once hit, it will cause internal cracking and explosion. At the same time, too high air pressure will accelerate tire crown wear and reduce rolling resistance.