San Antonio Sunshine Hours by Month

Sunshine is key to understanding how a place experiences its seasons. This page shows the total number of hours of direct sunlight per month and the average hours per day in San Antonio, Heredia, Costa Rica. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020.

Monthly hours of sunshine

Sunshine in San Antonio varies greatly throughout the year. The sunniest month, March, reaches an impressive 284 hours, while June, the darkest month, offers only 145 hours. The total annual amount of sun is 2446 hours.

Daily hours of sunshine

This means the city can be enjoyed more throughout the sunniest month of March under a blue sky, with approximately 9.5 hours of sunshine daily. In contrast, the city experiences much darker days in June, with only 4.8 hours of sunlight per day.

San Antonio enjoys an average of 2446 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Lisbon, Portugal, there are approximately 2801 hours of sunshine annually, highlighting its warm and sunny Mediterranean climate.

In contrast, Juneau, Alaska, receives only about 1523 hours of sunshine per year and is known for its very short days in winter and frequently overcast conditions.

The climate in San Francisco, USA, includes 3072 hours of sunshine annually, thanks to its mild coastal weather.

In Brisbane, Australia, the annual sunshine averages 2999 hours, making it one of Australia’s sunniest cities.

October, San Antonio’s wettest month, receives 95 mm (3.7 in) of rainfall and has a maximum daytime temperature of 25°C (77°F). During the driest month March you can expect a temperature of 27°C (81°F).

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