The best times to visit Orillia for ideal weather are
March 12th to April 8th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Orillia Travel Guide
Other Orillia Travel Info
Weather in Orillia
Temperature
Average temperatures in Orillia vary drastically. Considering humidity, temperatures feel cold all year with a chance of rain or snow throughout most of the year. The area is far less temperate than some — in the 2nd 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 Orillia, the hottest months are July, August, and then September. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 50.8°F (10.4°C) with temperatures rarely dropping below 33.7°F (0.9°C) at night.
Orillia Temperatures (Fahrenheit)
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Orillia Temperatures (Celsius)
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“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.
Orillia Perceived Temperature (F)
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Orillia Perceived Temperature (C)
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Average Orillia 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 | 2.7 | -3.1 | -8.8 |
| Feb | 2.4 | -3.5 | -9.4 |
| Mar | 10.4 | 3.9 | -1.9 |
| Apr | 20.6 | 13.5 | 7.3 |
| May | 37.4 | 28.2 | 19.6 |
| Jun | 39.7 | 32.2 | 25 |
| Jul | 49.2 | 40.7 | 32.7 |
| Aug | 42.6 | 34.8 | 27.6 |
| Sep | 41.5 | 33 | 25.3 |
| Oct | 34 | 26.6 | 20.3 |
| Nov | 21.3 | 15 | 9.3 |
| Dec | 10.6 | 6.1 | 1.5 |
Show Celsius
| Month | Avg. High (°C) | Avg. Mean (°C) | Avg. Low (°C) |
|---|---|---|---|
| Jan | -16.3 | -19.5 | -22.7 |
| Feb | -16.4 | -19.7 | -23 |
| Mar | -12 | -15.6 | -18.8 |
| Apr | -6.3 | -10.3 | -13.7 |
| May | 3 | -2.1 | -6.9 |
| Jun | 4.3 | 0.1 | -3.9 |
| Jul | 9.6 | 4.8 | 0.4 |
| Aug | 5.9 | 1.6 | -2.4 |
| Sep | 5.3 | 0.6 | -3.7 |
| Oct | 1.1 | -3 | -6.5 |
| Nov | -5.9 | -9.4 | -12.6 |
| Dec | -11.9 | -14.4 | -16.9 |
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Orillia are March, August, and then February. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid March. For example, on the week of March 19th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in late November to early December with an average of 3 days of significant precipitation the week of November 26th.
When can you find snow in Orillia? Weather stations report very large amounts of snow likely to be deepest around February, especially close to mid February. The best time to ski (if at all) in Orillia 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 Orillia.
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Snow on the Ground
The graph below shows the average snow on the ground in Orillia (in).
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Average Rain and Snow by Month
Show Inches
| Month | Daily Chance of Rain | Average Snow Depth (in) | Total Precipitation (in) |
|---|---|---|---|
| Jan | 26% | 9.9 | 2.4 |
| Feb | 21% | 13.6 | 2.1 |
| Mar | 16% | 12.1 | 2 |
| Apr | 22% | 4.6 | 3 |
| May | 23% | 0 | 2.9 |
| Jun | 24% | 0 | 4.1 |
| Jul | 21% | 0 | 3.4 |
| Aug | 19% | 0 | 3.1 |
| Sep | 22% | 0 | 3.7 |
| Oct | 29% | 1.5 | 3.5 |
| Nov | 28% | 3.3 | 2.8 |
| Dec | 30% | 8.2 | 3 |
Show Centimeters
| Month | Daily Chance of Rain | Average Snow Depth (cm) | Total Precipitation (cm) |
|---|---|---|---|
| Jan | 26 | 25.1 | 6.1 |
| Feb | 21 | 34.5 | 5.3 |
| Mar | 16 | 30.7 | 5.1 |
| Apr | 22 | 11.7 | 7.6 |
| May | 23 | 0 | 7.4 |
| Jun | 24 | 0 | 10.4 |
| Jul | 21 | 0 | 8.6 |
| Aug | 19 | 0 | 7.9 |
| Sep | 22 | 0 | 9.4 |
| Oct | 29 | 3.8 | 8.9 |
| Nov | 28 | 8.4 | 7.1 |
| Dec | 30 | 20.8 | 7.6 |
Humidity and Wind
Orillia has some extremely humid months, and above average humidity throughout the year. The least humid month is May (62.8% relative humidity), and the most humid month is December (81.7%).
Wind in Orillia is usually calm. The windiest month is April, followed by March and February. April’s average wind speed of around 8.1 knots (9.3 MPH or 15 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 15 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Orillia.
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Wind
The graph below shows wind speed (max and average) in knots.
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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 | 6.5 | Light breeze | 12.2 | Significant breeze |
| Feb | 7.1 | Gentle breeze | 13.1 | Significant breeze |
| Mar | 7.5 | Gentle breeze | 13.5 | Significant breeze |
| Apr | 8.1 | Gentle breeze | 14.4 | Significant breeze |
| May | 6.7 | Light breeze | 12.4 | Significant breeze |
| Jun | 5.9 | Light breeze | 11.4 | Significant breeze |
| Jul | 5.4 | Light breeze | 10.9 | Significant breeze |
| Aug | 5.2 | Light breeze | 10.4 | Gentle breeze |
| Sep | 5.1 | Light breeze | 10.2 | Significant breeze |
| Oct | 6.3 | Light breeze | 11.5 | Significant breeze |
| Nov | 6.4 | Light breeze | 11.6 | Significant breeze |
| Dec | 6.8 | Light breeze | 12 | Significant breeze |
Show Relative Humidity by Month
| Month | Avg. Relative Humidity |
|---|---|
| Jan | 77.1% |
| Feb | 73.9% |
| Mar | 66.6% |
| Apr | 63.3% |
| May | 62.8% |
| Jun | 70.9% |
| Jul | 68.8% |
| Aug | 73.5% |
| Sep | 75.6% |
| Oct | 75.8% |
| Nov | 76.9% |
| Dec | 81.7% |
Is it Safe to Travel to Orillia?
#N/A
The Busiest and Least Crowded Months
The busiest month for tourism in Orillia, ON, 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 Orillia 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
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Overall Orillia Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel very cold. Highs range from 41.8°F (5.4°C) and 3°F (-16.1°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 slowest for tourism, which makes it a good time for those looking for deals.
Summer (June through August)
The middle-year months have freezing weather with high temperatures that are still jacket weather. These months see moderate precipitation with 6 to 7 days of precipitation per month. June – August is the busiest season for tourism in Orillia, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 42.4°F (5.8°C) and 12.7°F (-10.7°C), which will feel very chilly given the humidity and wind. It rains or snows a significant amount: 6 to 9 days per month. Tourism is the second busiest during these months due to the weather, so hotels may be slightly higher priced.
Winter (December through February)
Weather is far too cold this time of year in Orillia to be enjoyable for warm weather travelers. The average high during this season is between 11.4°F (-11.4°C) and 0.6°F (-17.4°C). On average, it rains or snows a fair amount: 6 to 9 times per month. These times of year are fairly slow with tourists.
Best Times to Travel› Canada › Orillia, ON, Canada