Do Evaporative Coolers Work in High Humidity?

Do evaporative coolers work in high humidity? To say that air coolers do not work in high humidity would be unfair, and literally an act of watering down their effect. However, in high humidity, the effect of the evaporative coolers especially is somewhat reduced.

At what humidity do evaporative coolers become ineffective?

Although evaporative coolers are energy-efficient and affordable cooling devices, they're only suitable in certain environments, particularly in areas where temperatures rise above 80° F and humidity levels below 50%.

What humidity is too high for evaporative cooling?

When the outdoor humidity gets over 70-80%, you'll reach the limitation of a swamp cooler.

Maya Lin-Takahashi

Maya Lin-Takahashi

Consumer Tech & Gadget Reviewer

Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.