Climate in Costa Rica

Costa Rica has a highly diverse climate, with major differences between regions. Annual temperatures range from lows of 0°C in the coldest regions to highs of 29°C in the warmest areas. Annual precipitation ranges from 39mm in drier regions to 389mm in wetter parts of the country. Some regions receive significant snowfall, with up to 144cm annually, while other areas see little to none. The warmest areas are hot year-round while the coldest regions remain cold, making Costa Rica a country of sharp climate contrasts.

Temperature patterns across Costa Rica vary by region, with distinct differences between areas. The Northwest is the warmest part of the country, with peak temperatures reaching 29°C and an annual average of 27°C. Cooler conditions are found in the Northwest, where winter lows drop to 0°C and an annual average of 1°C. This 26°C difference in annual averages between regions means travellers can experience vastly different conditions depending on which part of Costa Rica they visit. Regional temperature differences remain relatively consistent across seasons, with around 27°C of variation in both summer and winter. For example, Alajuela in the Provincia de Alajuela averages 27°C annually, while Liberia in the Provincia de Guanacaste averages 1°C.

Costa Rica sees notable variation in rainfall across its regions, ranging from 39mm to 389mm per year. The Northwest receives the most rainfall, at approximately 389mm annually. The Northeast is the driest, with around 38mm per year. Rainfall is distributed fairly evenly across the seasons, with no strong wet or dry period in most regions. The Northwest sees the most snowfall, with up to 144cm annually, while other parts of the country receive little to none. Travellers should pack rain gear when visiting wetter areas, while drier regions offer more favourable conditions throughout the year.