Playa de San Juan Weather & Climate: Best Time to Visit

In Playa de San Juan, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a comfortable 30°C (86°F) in August, the warmest time of the year, to a moderate 16°C (61°F) during cooler months like January.

At night, you can expect temperatures ranging from 23°C (73°F) in August to around 9°C (48°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Playa de San Juan typically sees modest rainfall throughout the year, with an average annual precipitation of 359 mm (14 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, September it receives moderate rainfall, averaging 45 mm (1.8 in) of precipitation, recorded across 6 rainy days. In contrast, the driest month July brings less rainfall, with 4.1 mm (0.2 in) over 3 rainy days. For more details, please visit our Playa de San Juan Precipitation page.

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

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Playa de San Juan. While July receives considerable daily sunshine with up to 11.0 hours, December marks the darkest time of the year, where sunshine is scarce with only 5.5 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 mean water temperature over the year ranges from 14°C (57°F) in February to 26°C (79°F) in August.

Water temperature over the year

The relative humidity is high throughout the year in Playa de San Juan.

The city experiences its highest humidity in October, reaching 70%. In March, the humidity drops to its lowest level at 63%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year