Simi Valley weather in December (California, United States of America)

Can you expect sunny skies in Simi Valley in December? Check out this detailed guide to the month’s weather conditions.

Temperatures

The month of December in Simi Valley typically brings moderate temperatures and moderate rainfall. Experience the winter season in December. During the daylight hours, temperatures often reach 18°C. After dark they usually decrease to around 7°C. Though this month features the lowest temperatures of the year, they are far from chilly and remain warm.

Precipitation

Simi Valley in December usually receives moderate rainfall, averaging around 62 mm for the month. Records from the past 30 years suggest that around 7 days will experience rain.

Average sunshine

With approximately 220 hours hours of sun, the days are filled with brightness. It makes it a perfect month for outdoor activities.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Simi Valley. February, March, April, May, June, July, August, September, October and November generally stand out with the best circumstances. While January and December tend to showcase less optimal conditions.

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

 

Simi Valley, monthly averages in December

Min Temperature 7°C  

Max Temperature 18°C  

Chance of Rain 23%  

Precipitation 62 mm  

Rainy days 7 days  

Humidity 52% *  

Sunshine 220 hours *  

Percentage Sunshine 71% *  

Data from: Los Angeles, the United States of America (51 KM, 31 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

Map not visible? Whoops sorry! Please refresh the page.

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 Simi Valley, 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 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.