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Average Monthly Sunshine in Castaic (CA)

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

Monthly hours of sunshine


Sunshine in Castaic varies greatly throughout the year. The sunniest month, July, reaches an impressive 364 hours, while November, the darkest month, offers only 217 hours. The total annual amount of sun is 3259 hours.

Daily hours of sunshine


For those who appreciate different seasons, Castaic serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 12.1 hours of sunshine daily, and embrace the darker days in November, offering only 7.2 hours of daily sunlight.

Castaic’s total hours of sunshine compared to other major cities

Castaic enjoys an average of 3259 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.

Manchester, UK, experiences just around 1420 hours of sunshine annually.

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

Melbourne, Australia, has 2380 hours of sunshine annually, with its famous “four seasons in a day” weather pattern.

Other climate information

December, Castaic’s wettest month, receives 0.2 mm of rainfall and has a maximum daytime temperature of 18°C. During the driest month June 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 Castaic Precipitation page.


Forecast: is it sunny in Castaic (CA)?

Sat   Dec 28
23°C | 11°C
N 4 m/s
broken clouds and no rain

broken clouds and no rain

Sun   Dec 29
18°C | 9°C
SW 2 m/s
clear and no rain

clear and no rain

Mon   Dec 30
22°C | 8°C
N 4 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 Castaic.

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.