What temperatures are indicated when air is saturated in relation to dry-bulb, wet-bulb, and dew point temperatures?

When air is saturated, the dry-bulb temperature, wet-bulb temperature, and dew point temperature all converge to the same value. This occurs because saturation refers to the point at which the air can hold no more water vapor, meaning the temperature at which condensation begins must be uniform across these temperature measurements.

At saturation, the wet-bulb temperature, which is a measure of the lowest temperature air can reach by evaporative cooling, reflects the existence of enough moisture in the air. Simultaneously, the dew point temperature, which indicates the temperature at which air becomes saturated (the point where dew forms), also aligns with these other temperatures. Therefore, when the air mass is fully saturated, all three temperature readings indicate the same value, leading to the conclusion that they are identical at that specific point in time.