Climate in Puerto Rico

Puerto Rico has a highly diverse climate, with major differences between regions. Annual temperatures range from lows of -5°C in the coldest regions to highs of 40°C in the warmest areas. Annual precipitation ranges from 86mm in drier regions to 387mm in wetter parts of the country. Some regions receive significant snowfall, with up to 265cm annually, while other areas see little to none. The warmest areas are hot year-round while the coldest regions remain cold, making Puerto Rico a country of sharp climate contrasts.

Temperature patterns across Puerto Rico vary by region, with distinct differences between areas. The Northwest is the warmest part of the country, with peak temperatures reaching 40°C and an annual average of 26°C. Cooler conditions are found in the East, where winter lows drop to -5°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 Puerto Rico they visit. Regional temperature differences remain relatively consistent across seasons, with around 30°C of variation in both summer and winter. For example, Arecibo in the Arecibo averages 26°C annually, while Caguas in the Caguas Municipio averages 1°C.

Puerto Rico sees notable variation in rainfall across its regions, ranging from 86mm to 387mm per year. The Central receives the most rainfall, at approximately 387mm annually. The Southeast is the driest, with around 86mm per year. Precipitation tends to be somewhat heavier in summer across most regions, though rain falls year-round. The East sees the most snowfall, with up to 265cm 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.