Rialto weather in December (California, United States of America)
What can you expect from the weather in Rialto during December? Here's what the weather might have in store during this month.
In December, Rialto typically experiences pleasant temperatures and moderate rainfall. December is a winter month. Throughout the daytime, temperatures often hover around 18°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 6°C. While this is the time of year with slightly cooler averages, it remains comfortably warm.
Rialto in December usually receives moderate rainfall, averaging around 86 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. Based on our climate data of the past 30 years, about 7 days of rain are anticipated.
The days are predominantly sunny, with an estimated total of around 205 hours of sunshine. This amount of sunlight does not only brightens the days but also contributes to a cheerful ambiance in the area during this month.
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
*
Where to go in the United States of America in December
Find out more about the weather in the United States of America in December and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Rialto in December?
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 in December.
Interested in more climate information?
Weather and Climate 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 climate conditions. Find out where to go with our weather planner.
