For those searching for an ideal October holiday with excellent weather, Ontario is a perfect choice. Average maximum temperatures are +81°F. Expect about 12 sunny days, making it the perfect place to enjoy the sunshine. It's worth noting that there may be some rainfall, with an average of 18 mm of precipitation over 5 rainy days. So, take your sunglasses, a beach towel, and great walking shoes, as it looks like amazing weather. Search flightsin one click on Avionero.
Average weather
☀️
+81°F
Avg. max. temperature
+45°F
Min.
+106°F
Max.
18 mm
Total precipitation
57%
Avg. humidity
1 m/s
Avg. wind
12 ☀️
Sunny Days
15 ⛅️
Cloudy
5 🌦
Rainy
Our opinion: Ontario has great weather in October.
Avionero - Smarter Travel Planning for a Better World
Cheapest prices on the market!
Check all your dates and date combinations in a single search!
Want inspiration, set your dates and find the cheapest destinations!
Saves your searches in the browser so you can easily return to them!
Donates 10% of all revenue to charity!
Average temperature in Ontario in October
Here are the expected maximum, average and minimum temperatures in Ontario for October based on the historical data.
Last Year
Historical Data
The temperature in October is +84°F on average, with a range between a maximum of +97°F during the day and a minimum of +54°F at night.
The average maximum temperature goes up 38% by the end of the month, compared with the beginning of the month, from +68°F to +84°F.
Is Ontario warm or cold in October?
Ontario is typically warm in October.
Maximum temperatures go down compared to the previous month from +90°F to +81°F. The minimum temperature also goes down from +64°F to +59°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how October is compared to other months in Ontario:
Climate in Ontario in October
Ontario weather looks like this, on average, in October and the surrounding months.
September
October
November
Avg. temperature
+90°F
+81°F
+72°F
Min. temperature
+50°F
+45°F
+34°F
Max. temperature
+115°F
+106°F
+95°F
Rainfall
7 mm
18 mm
33 mm
Wind
2 m/s
1 m/s
1 m/s
Humidity
57%
57%
55%
Air pressure
1011 HPa
1013 HPa
1015 HPa
Sunny days
14
12
10
Cloudy days
13
15
14
Rainy days
3
5
5
Snowy days
0
0
0
October weather is still as great as in September.It’s getting colder in October. From +90°F in the day, the average maximum temperature lowers to +81°F.Prepare for more rain. Average rainfall goes from 7 mm to 18 mm.Humidity levels don’t change as the month goes on, averaging around 57%.Winds are calmer in comparison to September, going down from 2 m/s to 1 m/s on average.The days becoming less sunny, going from 14 sunny days in September to 12 in October.
Next month (November) brings a further decline in the weather.
Wind speed in Ontario in October based on historical data.
Last Year
Historical Data
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Ontario is gradually decreasing during October, going from 4 m/s to 3 m/s over the course of the month.
Rain
Amount of rainfall in mm during October in Ontario based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in October stands at 13%, leading to total precipitation of around 15 mm. The maximum amount of rainfall per day is around 8 mm, which is considered light rain.Ontario is amazing in October with as little as 4 rainy days on average, so plan adventures in the great outdoors.
Here’s how October is compared with other months in the amount of precipitation, total mm:
Ontario wettest month is February, where a typical day has a 32% chance of precipitation and 99 mm of rainfall per day. June, on the other hand, is the driest month with a mere 3% chance of precipitation and 2 mm of rainfall per day.
How was the weather last October in Ontario?
This is the weather in Ontario in October 2024:
1 October
☁️
+68°F
2 October
☀️
+74°F
3 October
☀️
+84°F
4 October
☀️
+92°F
5 October
☀️
+97°F
6 October
☀️
+98°F
7 October
☀️
+97°F
8 October
☁️
+95°F
9 October
☀️
+90°F
10 October
☁️
+82°F
11 October
☁️
+75°F
12 October
☀️
+83°F
13 October
☀️
+83°F
14 October
☀️
+85°F
15 October
☀️
+93°F
16 October
☀️
+92°F
17 October
☀️
+89°F
18 October
☀️
+97°F
19 October
☀️
+95°F
20 October
☀️
+94°F
21 October
☀️
+90°F
22 October
☀️
+83°F
23 October
☁️
+71°F
24 October
☀️
+76°F
25 October
🌫️
+73°F
26 October
☁️
+72°F
27 October
☁️
+73°F
28 October
🌫️
+72°F
29 October
☀️
+76°F
30 October
☀️
+78°F
31 October
☀️
+83°F
In October 2024 Ontario had 22 sunny days, 7 cloudy days, and 0 rainy days. The average maximum temperature was +84°F, with an absolute maximum of +97°F and a minimum of +68°F. The average humidity was 55%, with a maximum of 100% and a minimum of 10%. The average wind speed was 3 m/s, with a maximum of 14 m/s and a minimum of 0 m/s.
Are you planning a trip in October?
Climate Change Over the Years
This is how Ontario climate has changed over the last 43 years.
The climate in Ontario in October has not changed that much over the last 43 years.
The average temperature was the lowest in 1998 (+74°F) and the highest in 2014 (+82°F). The driest year was 1989 with only 153 mm of rainfall, and the wettest year was 2022 with 1158 mm.
FAQ
Frequently asked questions about the weather in Ontario in October:
Is October a good time to visit Ontario?
Yes, October is a great time to go to Ontario, the weather couldn’t be better. Be ready to get outside, explore and enjoy. Check what other months that are a good time to visit Ontario.
Can you sunbathe in Ontario in October?
October is warm in Ontario. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.
Is Ontario rainy in October?
Ontario is usually dry in October. Plan your packing around outdoor activities and exploring.
Is it sunny in Ontario in October?
The amount of sunny days in Ontario during October varies; prepare for a mix of clouds and sun.
For this page, we’ve looked at the typical weather in Ontario, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
