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A desert cooler, also called a swamp cooler, depends on low humidity and evaporation to cool the air. It loses efficiency when the humidity is high, such as during the rainy season. Less water will evaporate when the air is already nearly saturated with water.

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Q: Why desert cooler are not effective during rainy season?
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Why does the desert cooler not work in the rainy season?

The desert (swamp) cooler depends upon evaporation of water for cooling. During the rainy season the air is already pretty much saturated with water vapor so little water evaporates from the cooler and they become inefficient. They are most efficient when the relative humidity is below 20%.


How AC is better than desert cooler?

On humid days, such as during the rainy season, swamp (desert) coolers are not very efficient at cooling the air. Air conditioners are not affected by high humidity.


Is night the winter of the desert?

No, it is cooler in the desert at night but not 'winter cool.' Deserts experience a regular winter season, however.


The desert cooler does not work efficiently in rainy season?

The sides of desert air cooler are filled with khas khas/ fine wood waste. A pump continuously keep this khas khas wet. The moisture from khas evaporates and creates cooling effect an this air is drawn into the room by cooler's fan. Now during rainy season the air outside is humid and it has less capacity to absorb water vapours so evaporation is less and so is cooling effect...by sarath sreerama


Can mold grow in the desert?

Yes, mold can live in the desert, especially during the rainy season.


Is there rainfall during the summer and winter in the desert?

It can rain at anytime in the desert. However, some have a winter rainy season, some have a summer rainy season, some have both.


When is desert season in California?

There is no such thing as a 'desert season.' A desert is a desert all seasons of the year.


What is the temperature of Africa's deserts at sunrise?

In which area of which desert and during which season of the year are you referring?


What time of the day do snakes come out in the desert hills?

That depends upon the species of snake and season of the year. Some snakes are abroad during the hot daylight hours. Others come out only in the cooler morning or evening. Some only emerge after dark.


What is the moisture level in a hot desert?

In most deserts during the dry season the relative humidity during the daytime will usually be below 20%. It may be significantly higher during the rainy season, however.


What weather conditions should a visitor expect during the winter season in the desert?

That would depend upon which desert as each has its own weather stats.


What creates ripple in the desert sand'?

Wind is the primary factor for causing ripples in the surface of desert sand but water can also be an agent during the rainy season.