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Ontario Weather in January

January in Ontario brings pleasant temperatures, with daytime highs of 20°C (68°F) and nights around 6°C (43°F). The excellent weather makes it a solid choice for a visit.

Rainfall in Ontario in January

Expect around 5 days of rain based on historical data, with 50 mm (2 in) average. Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.

Temperature in Ontario in January

January is a excellent month in Ontario, with 20°C (68°F) during the day and 6°C (43°F) at night. During January, you'll experience the winter season. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With lows around 6°C (43°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Ontario in January

The days are predominantly sunny, with an estimated total of around 198 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

Ontario Temperature in January

Min Temperature
6°C (43°F)
Max Temperature
20°C (68°F)
Chance of Rain
17%
Precipitation
50 mm (2 in)
Rainy days
5 days
Sunshine
198 hours *
Percentage Sunshine
*
* Data from: Corona, the United States of America (22 KM, 13 Miles).

Ontario Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Ontario - and find the best time to visit.

Best Places in the United States of America in January

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in January →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Ontario in January

Pleasant temperatures in January mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Ontario in January

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    6/10
  • Cycling
    10/10
  • Walking
    10/10
  • Barbeque
    7/10
  • Camping
    5/10
  • Outdoor sports
    10/10

Ontario 3-Day Forecast

More climate data for Ontario

Popular in January

Where to go in January - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.