Castaic weather in December (California, United States of America)

What weather conditions can you expect in Castaic this December? Get all the weather information you need to plan your visit.

Temperatures

Typically, December in Castaic includes moderate temperatures and moderate rainfall. During December, the winter season is in full swing. The temperature during the day can rise to approximately 18°C. At night, it falls to around 6°C. While this month has some of the cooler temperatures of the year, it's far from cold and remains pleasant.

Precipitation

Castaic in December usually receives moderate rainfall, averaging around 63 mm for the month. With this being the wettest month, keeping an umbrella on hand might save you from getting wet from a sudden shower. Typically, you can expect about 8 days of rain this month.

Average sunshine

With around 220 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.

If you prefer dry days with pleasant temperatures, February, March, April, May, June, September, October and November typically offer the best circumstances. While August tends to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Castaic climate page with graphs.

 

Castaic, monthly averages in December

Min Temperature 6°C  

Max Temperature 18°C  

Chance of Rain 27%  

Precipitation 63 mm  

Rainy days 8 days  

Humidity 52% *  

Sunshine 220 hours *  

Percentage Sunshine 71% *  

Data from: Los Angeles, the United States of America (65 KM, 40 Miles).

Where to go in the United States of America in December

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

For visitors traveling to Castaic, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

10/10

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.