Clearlake (CA) Sunshine Hours by Month

The amount of sunshine is fundamental to comprehending a place's climate. This page shows the total number of hours of direct sunlight per month and the average hours per day in Clearlake, California, United States of America. These values are calculated using 30 years of data (1990–2020) to ensure accuracy.

Monthly hours of sunshine

Seasonal sunshine in Clearlake varies. It peaks at 310 hours in May and drops to 160 hours in December. The total annual amount of sun is 3042 hours.

Daily hours of sunshine

This means the city can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 10.3 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 5.3 hours of sunlight per day.

Average percent of sunshine

On average the sun shines 79% of the time during the day in April, the highest percentage of any month. December has the lowest percentage at 55%.

Clearlake vs Major Cities: Sunshine Compared

Clearlake enjoys an average of 3042 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, Reykjavík, Iceland, receives only about 1330 hours of sunshine per year, known for its frequently overcast and rainy skies.

In Shanghai, China, the annual average sunshine is 1780 hours, with cloudier weather in summer.

Adelaide, Australia, enjoys 2770 hours of sunshine annually, with long, sunny summers.

Related Climate Data for Clearlake

December, Clearlake’s wettest month, receives 0.5 mm (0.02 in) of rainfall and has a maximum daytime temperature of 13°C (55°F). During the driest month August you can expect a temperature of 33°C (91°F).

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