Peak Season -- The tourist season runs from December to April, culminating in Easter celebrations (early Apr).
Climate -- Like most of Central America, Nicaragua's climate is tropical and the year is split between summer (Dec-Apr) and winter (May-Nov), though the temperature is consistent throughout the year, ranging from 55°F (12°C) to 70°F (28°C). The main seasonal difference involves rainfall; the rainy season falls between May and October, with hurricanes buffeting the coast in September and October. Generally speaking, the Caribbean side of the country receives a lot more rainfall than the Pacific side. Altitude is also a factor with the weather -- the highlands have a more springlike climate compared to the hotter and more humid lowlands and coastal areas.
Public Holidays -- Public holidays include New Year's Day (Jan 1); Easter Week (Thurs, Fri, Sat before Easter Sunday), Labor Day (May 1), and Christmas Day (Dec 25). Liberation Day (July 19) celebrates victory over the Somoza regime, while the Battle of San Jacinto (Sept 14) rejoices the ending of William Walker's tyranny in 1856. Independence Day (Sept 15) is followed by Día de los Muertos (Nov 2), or the Day of the Dead, which is the Latin American version of All Souls' Day. Feast of the Immaculate Conception (Dec 8) is also known as La Purisma.