The best times to visit Lac Saint-Jean for ideal weather are

May 28th 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 Lac Saint-Jean Travel Info

Weather in Lac Saint-Jean

Temperature

Average temperatures in Lac Saint-Jean vary an incredible amount. 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 21st 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 Lac Saint-Jean, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally early to mid July where highs are regularly around 77.4°F (25.2°C) with temperatures rarely dropping below 56.5°F (13.6°C) at night.

Lac Saint-Jean Temperatures (Fahrenheit)

Key
High
Average
Low

Lac Saint-Jean Temperatures (Celsius)

Key
High
Average
Low

“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.

Lac Saint-Jean Perceived Temperature (F)

Key
High
Average
Low

Lac Saint-Jean Perceived Temperature (C)

Key
High
Average
Low

 

Average Lac Saint-Jean 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 16.2 6.2 -2.8
Feb 19 8.6 -0.2
Mar 31.5 20 10.9
Apr 48.7 37 27.7
May 64.2 51.4 40
Jun 72.5 60.8 50.1
Jul 76.5 65.6 56.4
Aug 74.5 63.8 55.1
Sep 67 55.7 46.7
Oct 52.7 43.4 35.4
Nov 39.5 31.4 24.1
Dec 23.4 15.3 7.5

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan -8.8 -14.3 -19.3
Feb -7.2 -13 -17.9
Mar -0.3 -6.7 -11.7
Apr 9.3 2.8 -2.4
May 17.9 10.8 4.4
Jun 22.5 16 10.1
Jul 24.7 18.7 13.6
Aug 23.6 17.7 12.8
Sep 19.4 13.2 8.2
Oct 11.5 6.3 1.9
Nov 4.2 -0.3 -4.4
Dec -4.8 -9.3 -13.6

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Lac Saint-Jean are February, January, 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 early February. For example, on the week of February 5th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late June with an average of 4 days of significant precipitation the week of June 25th.

When can you find snow in Lac Saint-Jean? Weather stations report very large amounts of snow likely to be deepest around March, especially close to early March. The best time to ski (if at all) in Lac Saint-Jean is often around around December 17th 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 Lac Saint-Jean.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Lac Saint-Jean (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 16% 7.5 2
Feb 14% 7.3 1.3
Mar 18% 8 1.9
Apr 21% 5.8 2.7
May 25% 2.4 3
Jun 31% 0 3.5
Jul 30% 0 4
Aug 33% 0 5.2
Sep 25% 0 4.1
Oct 26% 2.4 3.5
Nov 20% 2.5 2.3
Dec 23% 6.3 3.1

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 16 19.1 5.1
Feb 14 18.5 3.3
Mar 18 20.3 4.8
Apr 21 14.7 6.9
May 25 6.1 7.6
Jun 31 0 8.9
Jul 30 0 10.2
Aug 33 0 13.2
Sep 25 0 10.4
Oct 26 6.1 8.9
Nov 20 6.4 5.8
Dec 23 16 7.9

 

Humidity and Wind

Lac Saint-Jean has some high humidity months, with other comfortably humid months. The least humid month is May (51% relative humidity), and the most humid month is September (68.7%).

Wind in Lac Saint-Jean is usually moderate. The windiest month is March, followed by April and November. March’s average wind speed of around 8.3 knots (9.5 MPH or 15.4 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 mid March where average top sustained speeds reach 15.4 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Lac Saint-Jean.

Key
Avg. Relative Humidity

Wind

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

Key
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 7.4 Gentle breeze 14.2 Significant breeze
Feb 7.8 Gentle breeze 13.9 Significant breeze
Mar 8.3 Gentle breeze 14.7 Significant breeze
Apr 7.9 Gentle breeze 14.2 Significant breeze
May 7 Gentle breeze 13.2 Significant breeze
Jun 6 Light breeze 11.6 Significant breeze
Jul 6.4 Light breeze 12.1 Significant breeze
Aug 6.2 Light breeze 12 Significant breeze
Sep 6.9 Light breeze 12.8 Significant breeze
Oct 7.1 Gentle breeze 12.9 Significant breeze
Nov 7.8 Gentle breeze 14.3 Significant breeze
Dec 7.3 Gentle breeze 14 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 58.5%
Feb 55.3%
Mar 51.7%
Apr 52.8%
May 51%
Jun 58.8%
Jul 63.3%
Aug 68.6%
Sep 68.7%
Oct 68%
Nov 65.5%
Dec 68.7%

 

Is it Safe to Travel to Lac Saint-Jean?

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 Lac Saint-Jean, QC, 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 Lac Saint-Jean 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

Key
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 47.2 in December means 47.2% of the tourists vs. July.

 

 

Overall Lac Saint-Jean Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 70.1°F (21.2°C) and 22.9°F (-5.1°C) with far warmer temperatures in the later months. Rain is somewhat common with 6 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 9 to 10 days of precipitation per month. June – August is the busiest season for tourism in Lac Saint-Jean, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 71.5°F (21.9°C) and 31.8°F (-0.1°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 6 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 Lac Saint-Jean to be enjoyable for warm weather travelers. The average high during this season is between 28.5°F (-1.9°C) and 10.9°F (-11.7°C). On average, it rains or snows a fair amount: 4 to 7 times per month. These times of year are fairly slow with tourists.

 

Best Times to TravelCanada › Lac Saint-Jean, QC, Canada