Puerto Rico Weather & Climate: Best Time to Visit

The climate in Puerto Rico remains fairly constant, offering comfortable temperatures throughout the year. Average daytime temperatures reach a comfortable 26°C (79°F) in August. In January, the coolest month of the year, temperatures drop to a pleasant 19°C (66°F).

At night, temperatures range from around 21°C (70°F) in August to 15°C (59°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Puerto Rico experiences desert-like conditions in terms of precipitation with almost no rainfall, generally receiving 170 mm (6.7 in) annually. Puerto Rico can be quite wet during December, receiving approximately 35 mm (1.4 in) of precipitation over 4 rainy days.

In contrast, during the driest month (July), you will experience much drier conditions, with 1.2 mm (0.05 in) of precipitation spread across 0 rainy days. For more details, please visit our Puerto Rico Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Puerto Rico can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 10.4 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 5.9 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Puerto Rico.

The city experiences its highest humidity in October, reaching 69%. In March, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year