A guy I know rented a very nice, roughly 2,000 square foot, un-furnished condo in a nice area in the city of Managua for about $1,500 / month, plus utilities. This condo was in an 8 story building, had 4 elevators, and a nice view of the city. A monthly rent that much is obviously expensive for Nicaragua.
Out at the Pacific Beach area where we are (about an hour from the city of Managua), we don’t have any apartments. We gave condominiums, condos, a condotel, and little homes. What we have here are more like vacation rentals. The shortest term would be about a week. You could also contract for a monthly rental and we we have one guy who has been here and renting continuously for 3 years. Prices for one month could run from $800 for a casita about 650 meters (roughly a 10 minute walk, or less) from the ocean, to $1,800 or more for a month fora unit right on the ocean. Longer term rentals like you would have for an apartment could rent for less per month, depending on the circumstances.