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

Thinking of visiting Rialto in December? Check the weather first! Check out this detailed guide to the month’s weather conditions.

Temperatures

The month of December in Rialto typically brings pleasant temperatures and moderate rainfall. Experience the winter season in December. Daytime temperatures generally peak at 18°C, but after sunset, they often decrease to around 6°C. While temperatures are the coolest of this year this month, they remain pleasant and warm for outdoor activities.

Precipitation

Rialto in December usually receives moderate rainfall, averaging around 86 mm for the month. As the month with the most rain, you'll want to have an umbrella with you to manage the frequent showers. Climate data suggests that about 7 days will experience rainfall.

Average sunshine

The city usually sees around 205 hours of sunlight, indicating many sunny days.

In case you lean more towards enjoying temperate temperatures and rain-free days January, February, March, April, May, June, October and November typically offer the most optimal weather. In contrast, August tends to have less optimal conditions.

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

 

Rialto, monthly averages in December

Min Temperature 6°C  

Max Temperature 18°C  

Chance of Rain 24%  

Precipitation 86 mm  

Rainy days 7 days  

Sunshine 205 hours *  

Percentage Sunshine *  

Data from: Corona, the United States of America (31 KM, 19 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 Rialto, 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

9/10

Walking

9/10

Camping

4/10

Outdoor sports

9/10

Interested in more climate information?

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

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.