Question

Why aren't air coolers as effective during
season?​

Answer 1

Answer:

During the rainy reason, the atmosphere air is saturated with moisture. Therefore, the process of evaporation of water from the moist pads of the cooler slows down thereby not cooling the air blown out from the cooler.

Answer 2

During the rainy reason, the atmosphere air is saturated with moisture. Therefore, the process of evaporation of water from the moist pads of the cooler slows down thereby not cooling the air blown out from the cooler.

Coolers are not effective in high humidity because cooler cools the air because of evaporation of water. But in humid weather, this water does not evaporate and leads to amplification of the humid condition already present, so coolers are not effective in high humidity.