Average Monthly Sunshine in San Juan

The graphs on this page shows the average number of hours per month and per day that San Juan receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

Monthly hours of sunshine

Across the seasons, sunshine hours in San Juan vary. From a high of 284 hours in March, to a low of 203 hours in November, the city offers a balanced mix of sunny and overcast days. The total annual sunshine amounts to 2956 hours.

Daily hours of sunshine

This means you can enjoy sunny spells year-round. March sees up to 9.5 hours of daily sunshine, perfect for a sunny trip. November, the least sunny month, still offers a generous 6.8 hours of sun despite this cloudier / rainier time of the year.

San Juan’s total hours of sunshine compared to other major cities

San Juan enjoys an average of 2956 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Seville, Spain, enjoys an impressive 2920 hours of sunshine per year, making it an ideal destination even in winter.

In contrast, London, UK, receives only about 1659 hours of sunshine per year, known for its frequently overcast and rainy skies.

Osaka, Japan, experiences 2010 hours of sunshine annually, with bright, sunny weather in spring and autumn.

In Tokyo, Japan, the average annual sunshine is 1930 hours, with sunny periods between rainy seasons.

Other climate information

September, San Juan’s wettest month, receives 118 mm of rainfall and has a maximum daytime temperature of 31°C. During the driest month February you can expect a temperature of 28°C.

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our San Juan Precipitation page.