Ontario weather in December (California, United States of America)
How is the weather in Ontario in December? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.
In December, Ontario generally has pleasant temperatures and moderate rainfall. December falls within the winter season. Throughout the day, temperatures typically settle at around 19°C. But by evening, they drop to around 6°C. While this is the time of year with slightly cooler averages, it remains comfortably warm.
Ontario in December usually receives moderate rainfall, averaging around 78 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 around 8 days of rainfall is expected.
The city usually sees around 205 hours of sunlight, indicating many sunny days.
If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Ontario. January, February, March, April, May, June, July, September, October and November typically offer the best circumstances. While August and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Ontario climate page with graphs.
Ontario, monthly averages in December
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.
So, what should you wear in Ontario in December?
For visitors traveling to Ontario, 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?
This site provides you with all the information you need about the climate in Ontario.
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.