What has a major influence on the tire pressure? Humidity. Tire temperature. Vehicle speed Tire tread depth. The atmospheric pressure.

Tire pressure can be influenced by several factors, including humidity, tire temperature, vehicle speed, tire tread depth, and atmospheric pressure. However, the most significant factor among these is tire temperature.Tire temperature plays a crucial role in tire pressure because it affects the air inside the tire. When the tire temperature increases, the air molecules inside the tire move faster and exert more pressure on the tire walls, leading to an increase in tire pressure. Conversely, when the tire temperature decreases, the air molecules move slower and exert less pressure, resulting in a decrease in tire pressure.Humidity and atmospheric pressure can also affect tire pressure. In areas with high humidity, the air is denser, which can lead to an increase in tire pressure. Similarly, in areas with high atmospheric pressure, tire pressure can increase. However, these effects are generally less significant than the effect of tire temperature.Vehicle speed and tire tread depth do not have a direct impact on tire pressure. While vehicle speed can affect tire wear and tread depth, it does not directly influence tire pressure. Tire tread depth, on the other hand, refers to the depth of the grooves and channels on the tire's surface and does not affect tire pressure.In summary, while humidity, vehicle speed, tire tread depth, and atmospheric pressure can influence tire pressure to some extent, tire temperature is the most significant factor affecting tire pressure.