As Leland posted earlier, it's a necessity in most areas, from time to time.
April can be miserable, before the rains cool things off. And having some measure of AC allows you to exclude insects, which can be a health issue at certain times of year. Dengue is still very prevalent in Nicaragua.
Electricity IS expensive, but the newer "inverter mini split" units consume considerably less. They are also much quieter, and maintain an even temperature. The compressor throttles down to accommodate the required power, and uses less energy in the process.
You will find them at PriceSmart as well as other vendors.
SINSA has offers from time to time.
Although the units in the US almost 100% go both ways,, it's rare to find one in Nicaragua that heats as well as cools.
It can get chilly in December and January, especially if you are at some elevation. We're at 5000 feet, and for the most part we get the "eternal spring" effect, but it can get down to 50F at night.
And a little bit of heat will drive out the humidity when it gets oppressive.
Quality of Mini Split installation is critical. The "freon" is expensive, If properly done, the units are bullet proof, and maintenance free for many years. If you need to add refrigerant,, you have a faulty installation. A leak at one of the fittings.
Find a unit that uses the new R-30 as the 410a is being phased out, and will become increasingly expensive.
