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

How is December weather typically in Fullerton? Want to know if this month is ideal for visiting? Our guide provides detailed weather information.

Temperatures

During December, Fullerton experiences perfect weather, with pleasant temperatures and moderate rainfall. December is part of winter. During the day, temperatures can climb to about 20°C. At night, they may fall to a cooler 8°C. The temperatures this month are milder, providing a comfortable and warm experience.

Precipitation

Fullerton in December usually receives moderate rainfall, averaging around 67 mm for the month. This month sees the most rain, so carrying an umbrella will ensure you stay dry. Expect around 8 days of rain based on historical data.

Average sunshine

The days are predominantly sunny, with an estimated total of around 205 hours of sunshine. These sun-filled days are perfect for spending time outside. Whether it's playing sports, visiting a park, or going for a bike ride.

Should you favor a climate that's both dry and comfortably warm typically offer the most agreeable circumstances. On the other hand, tend to be characterized by conditions that may not be as optimal.

Need inspiration to choose your next destination? Our innovative weather planner helps you discover the perfect getaway tailored to your ideal climate conditions.

 

Fullerton, monthly averages in December

Min Temperature 8°C  

Max Temperature 20°C  

Chance of Rain 27%  

Precipitation 67 mm  

Rainy days 8 days  

Sunshine 205 hours *  

Percentage Sunshine *  

Data from: Corona, the United States of America (33 KM, 20 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 Fullerton, 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

10/10

Walking

10/10

Barbeque

8/10

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 Fullerton.

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.