Nicaragua has three regions, going from the Pacific, on the west coast, to the east, to the Caribbean:
The Pacific is close to sea level and it’s not so humid.
The mountain range has more elevation and is cooler than the other two regions.
The Caribbean is a plain and it’s humid. It has a lot of rivers and swamps that originate in the mountain range and go all the way to the Caribbean coast.
The major expat areas are San Juan del Sur, Managua, Granada, Leon, and other areas along the beach in the Pacific. All of these are on the Pacific side of Nicaragua, and have relatively little elevation. It’s relatively warm in this region, and not as humid.
Within the city of Managua itself, on the outskirts, there’s a town called El Crucero, which is very high, very windy, and very, very cool. But if you’re in the central part of the city of Managua, in the capital, it’s hot. If you go to Leon, it’s going to be hot too. Nicaragua is a tropical country. It has a warm weather on the Pacific edge.
As for the mountainous areas, I believe that one of the highest peaks in Nicaragua is a bit over 2,000 meters above sea level. However the territory is very diverse and the Pacific coast is relatively low and as you move to the center, there is a mountain range that basically divides the country in two parts. Within that mountain range, you have many of the highest points in the country and the weather and cities along the mountain range tend to be a lot cooler than the Pacific. You have houses around the forest areas, with pines and you usually have fog at night or at the morning. It is also very windy in these areas. It’s in these parts of the country where coffee is grown because it has the conditions for coffee. There are some areas, for example, Pueblos Blancos where they are up in the mountains and where it’s a bit cooler.
As you move farther east towards the Caribbean, the terrain starts to become a plain again and it’s kind of swampy and very humid. This area of Nicaragua is sparsely populated and has very few expats.
( A cow on Nicaragua's Corn Island in the Caribbean, pictured.)