The best times to visit Lethbridge for ideal weather are

June 18th 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 Lethbridge Travel Info

Weather in Lethbridge


Average temperatures in Lethbridge vary drastically. Considering humidity, temperatures feel cold for most of the year with a very low chance of rain or snow throughout the year. The area is somewhat temperate — in the 44th 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 Lethbridge, 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 83.3°F (28.5°C) with temperatures rarely dropping below 53.6°F (12°C) at night.

Lethbridge Temperatures (Fahrenheit)


Lethbridge 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.

Lethbridge Perceived Temperature (F)


Lethbridge Perceived Temperature (C)



Average Lethbridge 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 36.6 25 15.7
Feb 36.8 23.6 13.8
Mar 47.4 33.6 23
Apr 56 41.9 30.2
May 66.4 52.3 39.6
Jun 73.3 59.9 47.8
Jul 81.8 66.7 52.8
Aug 82.4 65.2 50.8
Sep 74.3 57.1 43.7
Oct 60.2 45.7 34.4
Nov 44.7 32.5 22.2
Dec 32.9 21.5 11.7

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 2.6 -3.9 -9.1
Feb 2.7 -4.7 -10.1
Mar 8.6 0.9 -5
Apr 13.3 5.5 -1
May 19.1 11.3 4.2
Jun 22.9 15.5 8.8
Jul 27.7 19.3 11.6
Aug 28 18.4 10.4
Sep 23.5 13.9 6.5
Oct 15.7 7.6 1.3
Nov 7.1 0.3 -5.4
Dec 0.5 -5.8 -11.3



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Lethbridge are February, January, and then December. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid January. For example, on the week of January 8th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late May with an average of 2 days of significant precipitation the week of May 21st.

When can you find snow in Lethbridge? 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 Lethbridge.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 0% 0 0.1
Feb 0% 0 0
Mar 2% 0 0.2
Apr 9% 0 1.4
May 17% 0 2.4
Jun 19% 0 2.9
Jul 11% 0 1.5
Aug 10% 0 1.3
Sep 11% 0 1.5
Oct 5% 0 0.8
Nov 1% 0 0.2
Dec 1% 0 0.1

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 0 0 0.3
Feb 0 0 0
Mar 2 0 0.5
Apr 9 0 3.6
May 17 0 6.1
Jun 19 0 7.4
Jul 11 0 3.8
Aug 10 0 3.3
Sep 11 0 3.8
Oct 5 0 2
Nov 1 0 0.5
Dec 1 0 0.3


Humidity and Wind

Lethbridge has some comfortably humid months, with slightly drier months on the other side of the year. The least humid month is April (44.8% relative humidity), and the most humid month is December (57.3%).

Wind in Lethbridge is usually moderate. The windiest month is January, followed by November and March. January’s average wind speed of around 10.5 knots (12.1 MPH or 19.5 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 March where average top sustained speeds reach 21.1 knots, which is considered a fresh breeze.

Relative Humidity (%)

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

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 10.5 Gentle breeze 18.6 Strong breeze
Feb 8.3 Gentle breeze 15 Significant breeze
Mar 9.7 Gentle breeze 17.8 Strong breeze
Apr 9.6 Gentle breeze 17.3 Strong breeze
May 8.3 Gentle breeze 15.1 Strong breeze
Jun 8.1 Gentle breeze 15 Significant breeze
Jul 7.1 Gentle breeze 13.6 Strong breeze
Aug 6.7 Light breeze 13.1 Significant breeze
Sep 7.6 Gentle breeze 14.8 Strong breeze
Oct 8.8 Gentle breeze 16.2 Significant breeze
Nov 9.8 Gentle breeze 17.9 Strong breeze
Dec 9.2 Gentle breeze 16.7 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 50.8%
Feb 55.1%
Mar 48.5%
Apr 44.8%
May 45.7%
Jun 50.7%
Jul 50.3%
Aug 45.8%
Sep 45.3%
Oct 47.4%
Nov 50.6%
Dec 57.3%


Is it Safe to Travel to Lethbridge?

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 Lethbridge, AB, Canada is July, followed by June and August. 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 Lethbridge 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 somewhat extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 46.8 in December means 46.8% of the tourists vs. July.



Overall Lethbridge Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 70.7°F (21.5°C) and 37.4°F (3°C) with warmer temperatures in the later months. Rain is rare with 1 to 5 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 3 to 6 days of precipitation per month. June – August is the busiest season for tourism in Lethbridge, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 75.1°F (23.9°C) and 37.6°F (3.1°C), which will feel chilly given the humidity and wind. It rains or snows a normal amount: 0 to 3 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 Lethbridge to be enjoyable for warm weather travelers. The average high during this season is between 41.6°F (5.3°C) and 31.7°F (-0.2°C). On average, it rains or snows a insignificant amount: consistently 0 times per month. These times of year are the slowest with tourists.


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