Normal weather for Ontario in October
It's cool to moderate in October in Ontario with an average temperature of 16°C. Temperatures this month range from a low of 10°C to a high of 19°C. At night, you can expect temperatures between 5°C and 14°C.
In October, there is an average of 69 mm of precipitation, spread over 10 days. Of the total precipitation, about 0,1 cm falls as snow in October. The wind speed is around 4 Bft, mostly coming from the South.
The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Ontario in October |
UK | ||
|---|---|---|---|
 Average Temperature |
16°C | 15°C | |
 High Temp |
19°C | 17°C | |
| Low Temp |
10°C | 13°C | |
 Total Precipitation |
69 mm | 115 mm | |
| Rainy Days |
10 days | 14 days | |
 Total Snowfall |
0,1 cm | 0 cm | |
| Snowy Days |
1 day | 0 days | |
Curious about the climate in other parts of Canada? Check out the weather and climate in places like Vancouver, Toronto, Niagara Falls, or have a look at other destinations in Canada.
Start of October
The month of October starts in Ontario with mild temperatures, averaging around 19°C during the day and nights close to 12°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-October
By mid-October, the average daytime temperature drops to around 16°C, with nights close to 9°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of October
By the end of October, the average daytime temperature in Ontario will be around 13°C, with nights close to 7°C. A shower might show up, but overall the weather will be dry and sunny.
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Is October a good time to visit Ontario?
Looking for sun and warm weather? Then October isn’t the best time to be in Ontario. The temperature is too low this month for a warm stay.
Temperature records for Ontario in October
With 29°C, Ontario hit the highest temperature in the last 10 years in October 2019. The lowest daytime temperature in this month was 3°C in 2020. The extreme night temperatures ranged from a low of -3°C to a high of 20°C.
Check out the climate of Ontario for all months and discover the best travel time
September
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Daily Temperature in October in Ontario
This chart shows the average daily temperatures, both day and night, for each day in October in Ontario, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in October in Ontario
The chart below shows the average daily precipitation in October for Ontario, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for October, you can expect around 10 days of rain in Ontario.
Daily Snowfall in October in Ontario
This chart shows the average daily snowfall in October in Ontario, measured in centimetres. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in October.
Daily UV Index in October in Ontario
This chart shows the average daily UV index in October in Ontario, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in October in Ontario Over the Years
This chart shows the average temperature in October in Ontario, measured in degrees Celsius, over the past years.
Total Precipitation in October in Ontario Over the Years
This chart shows the average precipitation in October in Ontario, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Snowfall in October in Ontario per year
This chart shows the average snowfall in October in Ontario, measured in centimetres, over the past years.
Daily climate in October for Ontario
Click on a specific day in October for detailed info on the typical weather on that day in Ontario. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in October in Ontario
Have you been to Ontario in October?
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Average Weather in Ontario by Month
Click on a month below to see detailed weather info for Ontario. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
