The best times to visit Cape Breton Island for ideal weather are

June 18th to September 23rd

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



Other Cape Breton Island Travel Info

Weather in Cape Breton Island


Average temperatures in Cape Breton Island vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 18th 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 Cape Breton Island, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally mid August where highs are regularly around 77.6°F (25.3°C) with temperatures rarely dropping below 57.7°F (14.3°C) at night.

Cape Breton Island Temperatures (Fahrenheit)


Cape Breton Island 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.

Cape Breton Island Perceived Temperature (F)


Cape Breton Island Perceived Temperature (C)



Average Cape Breton Island 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 32.7 24.6 17
Feb 31 23.1 14.9
Mar 36.5 27.9 20
Apr 46.8 36.9 28.8
May 58.1 46.8 37.5
Jun 65.1 54.2 45.7
Jul 76.5 65.2 56.1
Aug 75.6 65.5 56.7
Sep 69 59.1 49.5
Oct 57.4 48.9 40.7
Nov 48.2 40.5 32.8
Dec 38.5 31.9 25

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 0.4 -4.1 -8.3
Feb -0.6 -4.9 -9.5
Mar 2.5 -2.3 -6.7
Apr 8.2 2.7 -1.8
May 14.5 8.2 3.1
Jun 18.4 12.3 7.6
Jul 24.7 18.4 13.4
Aug 24.2 18.6 13.7
Sep 20.6 15.1 9.7
Oct 14.1 9.4 4.8
Nov 9 4.7 0.4
Dec 3.6 -0.1 -3.9



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Cape Breton Island are August, July, and then May. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early July. For example, on the week of July 2nd there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in late December with an average of 3 days of significant precipitation the week of December 24th.

When can you find snow in Cape Breton Island? Weather stations report large amounts of snow likely to be deepest around April, especially close to early April. The best time to ski (if at all) in Cape Breton Island is often around around March 26th 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 Cape Breton Island.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Cape Breton Island (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 34% 5.3 5.7
Feb 33% 5.8 5.3
Mar 28% 6.1 4.4
Apr 28% 6.2 4
May 25% 0.9 3.5
Jun 30% 0 5.6
Jul 22% 0 3.6
Aug 21% 0 4.8
Sep 26% 0 5.6
Oct 32% 0 5.9
Nov 31% 2.2 6
Dec 44% 5.2 8

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 34 13.5 14.5
Feb 33 14.7 13.5
Mar 28 15.5 11.2
Apr 28 15.7 10.2
May 25 2.3 8.9
Jun 30 0 14.2
Jul 22 0 9.1
Aug 21 0 12.2
Sep 26 0 14.2
Oct 32 0 15
Nov 31 5.6 15.2
Dec 44 13.2 20.3


Humidity and Wind

Cape Breton Island has some very humid months, and above average humidity throughout the year. The least humid month is March (66.3% relative humidity), and the most humid month is December (76.9%).

Wind in Cape Breton Island is usually moderate. The windiest month is March, followed by January and February. March’s average wind speed of around 10.8 knots (12.5 MPH or 20.1 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid February where average top sustained speeds reach 19.9 knots, which is considered a fresh breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Cape Breton Island.

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 10.6 Gentle breeze 18.6 Strong breeze
Feb 10.5 Gentle breeze 18.2 Strong breeze
Mar 10.8 Gentle breeze 18.1 Strong breeze
Apr 9.9 Gentle breeze 16.9 Significant breeze
May 8.8 Gentle breeze 15.2 Strong breeze
Jun 8 Gentle breeze 14.2 Significant breeze
Jul 7.6 Gentle breeze 13.3 Strong breeze
Aug 7.6 Gentle breeze 13.3 Significant breeze
Sep 8.5 Gentle breeze 15 Strong breeze
Oct 9.1 Gentle breeze 16.2 Significant breeze
Nov 9.7 Gentle breeze 17.1 Strong breeze
Dec 10.4 Gentle breeze 18.2 Strong breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 71.1%
Feb 69.1%
Mar 66.3%
Apr 67.9%
May 69.6%
Jun 74.8%
Jul 73.2%
Aug 74.9%
Sep 73.7%
Oct 74.1%
Nov 73.6%
Dec 76.9%


Is it Safe to Travel to Cape Breton Island?

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 Cape Breton Island, NS, Canada is July, followed by August and June. 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 Cape Breton Island in December. 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 51.6 in December means 51.6% of the tourists vs. July.



Overall Cape Breton Island Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 62°F (16.7°C) and 33.1°F (0.6°C) with warmer temperatures in the later months. Rain is somewhat common with 8 to 9 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 least precipitation with 7 to 9 days of precipitation per month. June – August is the busiest season for tourism in Cape Breton Island, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 72°F (22.2°C) and 43.5°F (6.4°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 8 to 10 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.

Winter (December through February)

Weather is far too cold this time of year in Cape Breton Island to be enjoyable for warm weather travelers. The average high during this season is between 42.1°F (5.6°C) and 27.1°F (-2.7°C). On average, it rains or snows a great amount: 9 to 14 times per month. These times of year are the slowest with tourists.


Best Times to TravelCanada › Cape Breton Island, NS, Canada