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The climate in Puerto Rico

Average daytime and nighttime temperatures


All climate diagrams on this site are taken from the collected data from the official weather station of Puerto Rico at an altitude of 3m above sea level. All data correspond to the average monthly values of the last 20 years.


Back to overview: Puerto Rico

Climate zone: tropics

The climate in Puerto Rico is very warm, with an annual average of 30 degrees, but has few truly tropical and sticky months. It is warm to hot all year round, inviting bathing at average water temperatures of 28 degrees. Due to less rain, the best time for traveling is from February to March.
Duration of daylight and sunshine in Puerto Rico
Compare climate with other regions or countries
Hours of sunshine per daySunshine hours per day in Puerto Rico
Rain days per monthRain days per month in Puerto Rico
Precipitation in mm/dayPrecipitation in Puerto Rico
Water temperatureWater temperatures in Puerto Rico
Relative humidity in %Relative humidity in Puerto Rico
Absolute humidity in g/m³Absolute humidity in Puerto Rico


Long-term development of temperatures from 1997 - 2022

In contrast to single record values, long-term development cannot simply be brought about by all weather stations in the country. Both the number and the locations are constantly changing. An average value would give a distorted result. If several measuring stations in particularly cold mountain or coastal regions are added in one year, the average would decrease as a result of this alone. If a station fails during the summer or winter months, it does not provide any values and distorts the average again. The subsequent long-term development was therefore reduced to only 1 measuring points in order to have comparable data over as long a period as possible.

In the years 1997 to 2022, there were only these 1 weather stations in the whole country, which reported continuous temperature values (San Juan). From these weather reports, we have created a long-term development that shows the monthly average temperatures. The hottest month in this entire period was June 2012 at 29.8 °C. February 1997 was the coldest month with an average temperature of 23.9 °C.

The average annual temperature was about 26.9 °C in the years after 1997 and about 27.5 °C in the last years before 2022. It has therefore increased only slightly by about 0.6 °C over the past 26 years. This trend only applies to the selected 1 weather stations in Puerto Rico. A considerably more comprehensive evaluation of global warming has been provided separately.

Long-term development of temperatures in Puerto Rico

Data basis: German Weather Service, individual values averaged and supplemented by own elements.
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