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Average Monthly Sunshine in Simi Valley (CA)

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

Monthly hours of sunshine


Seasonal sunshine in Simi Valley varies. It peaks at 364 hours in July and drops to 217 hours in November. The total annual amount of sun is 3259 hours.

Daily hours of sunshine


In Simi Valley, summer days are longer and more sunny, with daily sunshine hours peaking at 12.1 hours in July. As the darker season arrives, the brightness of the sun becomes less. November sees a soft sun for only 7.2 hours.

Simi Valley’s total hours of sunshine compared to other major cities

Simi Valley enjoys an average of 3259 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, Brussels, UK, receives only about 1590 hours of sunshine per year, known for its frequently overcast and rainy skies.

Beijing, China, has 2505 hours of sunshine annually, with clear, sunny days in winter.

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

Other climate information

January, Simi Valley’s wettest month, receives 0.1 mm of rainfall and has a maximum daytime temperature of 19°C. During the driest month August you can expect a temperature of 31°C.

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


Forecast: is it sunny in Simi Valley (CA)?

Sat   Dec 28
21°C | 8°C
W 2 m/s
broken clouds and no rain

broken clouds and no rain

Sun   Dec 29
20°C | 8°C
SW 3 m/s
clear and no rain

clear and no rain

Mon   Dec 30
22°C | 8°C
NE 2 m/s
almost clear and no rain

almost clear and no rain

Interested in more climate information?

This site provides you with all the information you need about the climate in Simi Valley.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.