The best times to visit Waterloo for ideal weather are

May 21st 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 Waterloo Travel Info

Weather in Waterloo

Temperature

Average temperatures in Waterloo 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 28th 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 Waterloo, 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 82.4°F (28°C) with temperatures rarely dropping below 57.5°F (14.2°C) at night.

Waterloo Temperatures (Fahrenheit)

Key
High
Average
Low

Waterloo 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.

Waterloo Perceived Temperature (F)

Key
High
Average
Low

Waterloo Perceived Temperature (C)

Key
High
Average
Low

 

Average Waterloo 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 28.8 20.9 12.9
Feb 28.2 19.5 11
Mar 40.9 30.7 21.1
Apr 56.7 43.6 32
May 70 56.7 43.8
Jun 76.9 64.4 52.4
Jul 81.1 68.5 55.5
Aug 79.5 66.5 54.2
Sep 73.1 59.8 47.9
Oct 59.8 48.5 39.2
Nov 46.6 37.2 28.5
Dec 35.1 28.3 21.2

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan -1.8 -6.2 -10.6
Feb -2.1 -6.9 -11.7
Mar 4.9 -0.7 -6.1
Apr 13.7 6.4 0
May 21.1 13.7 6.6
Jun 24.9 18 11.3
Jul 27.3 20.3 13.1
Aug 26.4 19.2 12.3
Sep 22.8 15.4 8.8
Oct 15.4 9.2 4
Nov 8.1 2.9 -1.9
Dec 1.7 -2.1 -6

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Waterloo 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 mid January. For example, on the week of January 15th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early June with an average of 2 days of significant precipitation the week of June 4th.

When can you find snow in Waterloo? Weather stations report no annual snow. 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 Waterloo.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Waterloo (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 14% 0 1.6
Feb 11% 0 1.3
Mar 15% 0 1.6
Apr 23% 0 2.8
May 22% 0 2.8
Jun 28% 0 3.4
Jul 21% 0 3.7
Aug 18% 0 2.8
Sep 22% 0 3.6
Oct 24% 0 3.3
Nov 18% 0 2.4
Dec 19% 0 2.3

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 14 0 4.1
Feb 11 0 3.3
Mar 15 0 4.1
Apr 23 0 7.1
May 22 0 7.1
Jun 28 0 8.6
Jul 21 0 9.4
Aug 18 0 7.1
Sep 22 0 9.1
Oct 24 0 8.4
Nov 18 0 6.1
Dec 19 0 5.8

 

Humidity and Wind

Waterloo has some very humid months, with other comfortably humid months. The least humid month is April (57.5% relative humidity), and the most humid month is December (77.6%).

Wind in Waterloo is usually moderate. The windiest month is April, followed by January and February. April’s average wind speed of around 9.5 knots (10.9 MPH or 17.6 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 April where average top sustained speeds reach 18.6 knots, which is considered a fresh breeze.

Relative Humidity (%)

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

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 9.3 Gentle breeze 17.1 Strong breeze
Feb 9.2 Gentle breeze 17.1 Strong breeze
Mar 8.8 Gentle breeze 16.3 Strong breeze
Apr 9.5 Gentle breeze 18.3 Strong breeze
May 7.6 Gentle breeze 15.7 Strong breeze
Jun 6.8 Light breeze 14.3 Significant breeze
Jul 6 Light breeze 13.6 Strong breeze
Aug 5.9 Light breeze 13 Significant breeze
Sep 6 Light breeze 13.2 Strong breeze
Oct 7.6 Gentle breeze 15.1 Significant breeze
Nov 8.3 Gentle breeze 15.9 Strong breeze
Dec 9.2 Gentle breeze 16.5 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 73.6%
Feb 71.8%
Mar 64.8%
Apr 57.5%
May 58.7%
Jun 66.3%
Jul 64.3%
Aug 68.9%
Sep 72%
Oct 72.3%
Nov 73.1%
Dec 77.6%

 

Is it Safe to Travel to Waterloo?

#N/A


 

The Busiest and Least Crowded Months

The busiest month for tourism in Waterloo, ON, Canada is March, followed by June and July. 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 Waterloo in January. 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 somewhat extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 67.3 in January means 67.3% of the tourists vs. March.

 

 

Overall Waterloo Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 75.9°F (24.4°C) and 30.2°F (-1°C) with far warmer temperatures in the later months. Rain is somewhat common with 5 to 7 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 very comfortable weather with high temperatures that are comfortable. These months see the most precipitation with 5 to 8 days of precipitation per month. June – August is the busiest season for tourism in Waterloo, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 77.5°F (25.3°C) and 39.7°F (4.3°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 5 to 7 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 Waterloo to be enjoyable for warm weather travelers. The average high during this season is between 36.4°F (2.4°C) and 25.1°F (-3.8°C). On average, it rains or snows a fair amount: 3 to 6 times per month. These times of year are fairly slow with tourists.

 

Best Times to Travel› Canada › Waterloo, ON, Canada