The best times to visit Northern Ontario for ideal weather are

June 11th to September 16th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Northern Ontario Travel Info

Weather in Northern Ontario


Average temperatures in Northern Ontario vary an incredible amount. Considering humidity, temperatures feel cold for most of the year with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 24th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Northern Ontario, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 76.5°F (24.7°C) with temperatures rarely dropping below 53.7°F (12.1°C) at night.

Northern Ontario Temperatures (Fahrenheit)


Northern Ontario Temperatures (Celsius)


“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Northern Ontario Perceived Temperature (F)


Northern Ontario Perceived Temperature (C)



Average Northern Ontario Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 12.9 1.6 -8.4
Feb 15.9 2.5 -10.1
Mar 32.3 18.2 5.1
Apr 46.3 33.2 20.9
May 61.6 47.6 35.6
Jun 71.8 58.8 46.1
Jul 75.8 63.6 52.7
Aug 74.5 62.1 51.5
Sep 64.9 52.7 42.8
Oct 49.6 40 32.6
Nov 34.1 25.7 18.5
Dec 17.8 8.5 -0.2

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan -10.6 -16.9 -22.4
Feb -8.9 -16.4 -23.4
Mar 0.2 -7.7 -14.9
Apr 7.9 0.7 -6.2
May 16.4 8.7 2
Jun 22.1 14.9 7.8
Jul 24.3 17.6 11.5
Aug 23.6 16.7 10.8
Sep 18.3 11.5 6
Oct 9.8 4.4 0.3
Nov 1.2 -3.5 -7.5
Dec -7.9 -13.1 -17.9



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Northern Ontario are February, December, and then March. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late February and early March. For example, on the week of February 26th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late May to early June with an average of 3 days of significant precipitation the week of May 28th.

When can you find snow in Northern Ontario? Weather stations report very large amounts of snow likely to be deepest around March, especially close to early to mid September. The best time to ski (if at all) in Northern Ontario is often around around December 3rd when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Northern Ontario.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Northern Ontario (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 15% 15.5 1.5
Feb 10% 20 0.9
Mar 14% 21.4 1.4
Apr 19% 13.6 1.8
May 26% 0.9 3.1
Jun 29% 0 4
Jul 27% 4.7 4.1
Aug 25% 0 2.8
Sep 25% 12.6 4.1
Oct 22% 1.7 2.6
Nov 25% 3.7 2
Dec 13% 9.3 1.6

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 15 39.4 3.8
Feb 10 50.8 2.3
Mar 14 54.4 3.6
Apr 19 34.5 4.6
May 26 2.3 7.9
Jun 29 0 10.2
Jul 27 11.9 10.4
Aug 25 0 7.1
Sep 25 32 10.4
Oct 22 4.3 6.6
Nov 25 9.4 5.1
Dec 13 23.6 4.1


Humidity and Wind

Northern Ontario has some very humid months, with other comfortably humid months. The least humid month is April (51% relative humidity), and the most humid month is November (76.8%).

Wind in Northern Ontario is usually calm. The windiest month is May, followed by April and November. May’s average wind speed of around 6.3 knots (7.3 MPH or 11.7 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in mid May where average top sustained speeds reach 13.5 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Northern Ontario.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 5.4 Light breeze 10.6 Gentle breeze
Feb 5.4 Light breeze 11.2 Significant breeze
Mar 5.7 Light breeze 12 Gentle breeze
Apr 6.3 Light breeze 13 Significant breeze
May 6.3 Light breeze 12.9 Gentle breeze
Jun 5.5 Light breeze 12.3 Significant breeze
Jul 5.6 Light breeze 12.7 Gentle breeze
Aug 5.4 Light breeze 12 Significant breeze
Sep 5.8 Light breeze 12.4 Gentle breeze
Oct 5.9 Light breeze 12 Significant breeze
Nov 6.1 Light breeze 11.9 Gentle breeze
Dec 5.3 Light breeze 10.8 Gentle breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 62.6%
Feb 55.4%
Mar 54%
Apr 51%
May 55.4%
Jun 59.5%
Jul 63.9%
Aug 66.1%
Sep 72.6%
Oct 76.4%
Nov 76.8%
Dec 71.8%


Is it Safe to Travel to Northern Ontario?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for Canada; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Oct 07, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Northern Ontario, Canada is July, followed by June and May. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Northern Ontario in November. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 38.2 in November means 38.2% of the tourists vs. July.



Overall Northern Ontario Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel very cold. Highs range from 66°F (18.9°C) and 19.6°F (-6.9°C) with far warmer temperatures in the later months. Rain is somewhat common with 4 to 8 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see the most precipitation with 8 to 9 days of precipitation per month. June – August is the busiest season for tourism in Northern Ontario, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 69.8°F (21°C) and 23°F (-5°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 7 to 8 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is far too cold this time of year in Northern Ontario to be enjoyable for warm weather travelers. The average high during this season is between 20°F (-6.7°C) and 10.4°F (-12°C). On average, it rains or snows a fair amount: 3 to 5 times per month. These times of year are fairly slow with tourists.


Best Times to TravelCanada › Northern Ontario, Canada