San Marcos (CA) Sunshine Hours by Month

In climate discussions, the hours of sunlight reveal much about a location. This page shows the total number of hours of direct sunlight per month and the average hours per day in San Marcos, California, United States of America. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020.

Monthly hours of sunshine

Across the seasons, sunshine hours in San Marcos vary. From a high of 304 hours in July, to a low of 230 hours in November, the city offers a balanced mix of sunny and overcast days. The total annual sunshine amounts to 3069 hours.

Daily hours of sunshine

This means you can enjoy sunny spells year-round. July sees up to 10.1 hours of daily sunshine, perfect for a sunny trip. February, the least sunny month, still offers a generous 7.7 hours of sun despite this cloudier / rainier time of the year.

Average percent of sunshine

On average the sun shines 75% of the time during the day in January, the highest percentage of any month. June has the lowest percentage at 57%.

San Marcos enjoys an average of 3069 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Athens, Greece, enjoys 2769 hours of sunshine each year, making it one of the sunniest destinations in the Mediterranean region.

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.

In Seoul, South Korea, there are approximately 2133 hours of sunshine per year, mostly during spring and autumn.

Perth, Australia, enjoys 3180 hours of sunshine annually, the highest among major Australian cities.

December, San Marcos’s wettest month, receives 1 mm (0.04 in) of rainfall and has a maximum daytime temperature of 19°C (66°F). During the driest month June 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 Marcos Precipitation page.