The best times to visit Chatham for ideal weather are

July 2nd to July 22nd

or

August 6th to September 9th

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

 

 


Other Chatham Travel Info

Weather in Chatham

Temperature

Average temperatures in Chatham 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 Chatham, the hottest months are July, September, and then August. See average monthly temperatures below. The warmest time of year is generally early July where highs are regularly around 57.3°F (14.1°C) with temperatures rarely dropping below 39.7°F (4.3°C) at night.

Chatham Temperatures (Fahrenheit)

Key
High
Average
Low

Chatham 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.

Chatham Perceived Temperature (F)

Key
High
Average
Low

Chatham Perceived Temperature (C)

Key
High
Average
Low

 

Average Chatham 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 13 7.6 2.2
Feb 14.4 8.2 1.8
Mar 25.4 18.2 12.1
Apr 33.6 25.1 17.6
May 43.4 34.6 26.7
Jun 45.8 38.1 31.3
Jul 54.6 46.5 38.4
Aug 46.5 39.1 31.9
Sep 50 40.9 32.6
Oct 41.5 33.6 26.6
Nov 27.3 21.5 15.7
Dec 18.8 14 9.3

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan -10.6 -13.6 -16.6
Feb -9.8 -13.2 -16.8
Mar -3.7 -7.7 -11.1
Apr 0.9 -3.8 -8
May 6.3 1.4 -2.9
Jun 7.7 3.4 -0.4
Jul 12.6 8.1 3.6
Aug 8.1 3.9 -0.1
Sep 10 4.9 0.3
Oct 5.3 0.9 -3
Nov -2.6 -5.8 -9.1
Dec -7.3 -10 -12.6

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Chatham are July, August, and then November. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid August. For example, on the week of August 13th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in late January and early February with an average of 3 days of significant precipitation the week of January 29th.

When can you find snow in Chatham? Weather stations report large amounts of snow likely to be deepest around January, especially close to late January and early February. The best time to ski (if at all) in Chatham is often around around April 9th 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 Chatham.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Chatham (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 33% 4.3 4
Feb 32% 4 3.2
Mar 24% 2.7 2.7
Apr 25% 1.4 3
May 24% 0 3.5
Jun 25% 0 3
Jul 18% 0 3.6
Aug 18% 0 2.6
Sep 22% 0 3.5
Oct 22% 2 2.8
Nov 21% 1 2.7
Dec 27% 3 3.5

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 33 10.9 10.2
Feb 32 10.2 8.1
Mar 24 6.9 6.9
Apr 25 3.6 7.6
May 24 0 8.9
Jun 25 0 7.6
Jul 18 0 9.1
Aug 18 0 6.6
Sep 22 0 8.9
Oct 22 5.1 7.1
Nov 21 2.5 6.9
Dec 27 7.6 8.9

 

Humidity and Wind

Chatham has some extremely humid months, and above average humidity throughout the year. The least humid month is April (65.6% relative humidity), and the most humid month is December (81.2%).

Wind in Chatham is usually moderate. The windiest month is April, followed by January and December. April’s average wind speed of around 8.6 knots (9.9 MPH or 16 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 April where average top sustained speeds reach 14.8 knots, which is considered a moderate breeze.

Relative Humidity (%)

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

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 8.4 Gentle breeze 13.8 Significant breeze
Feb 8 Gentle breeze 13.3 Significant breeze
Mar 8 Gentle breeze 13 Significant breeze
Apr 8.6 Gentle breeze 14.6 Significant breeze
May 7.2 Gentle breeze 12.9 Significant breeze
Jun 6 Light breeze 11.2 Significant breeze
Jul 4.9 Light breeze 9.8 Significant breeze
Aug 4.6 Light breeze 9.3 Gentle breeze
Sep 5.1 Light breeze 9.8 Significant breeze
Oct 6.6 Light breeze 11.6 Significant breeze
Nov 7.8 Gentle breeze 12.9 Significant breeze
Dec 8.1 Gentle breeze 13.3 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 80.6%
Feb 78.4%
Mar 73.2%
Apr 65.6%
May 66.1%
Jun 71.9%
Jul 71.7%
Aug 75.6%
Sep 74.1%
Oct 72.3%
Nov 75%
Dec 81.2%

 

Is it Safe to Travel to Chatham?

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 Chatham, 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 Chatham 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 somewhat extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 41.6 in December means 41.6% of the tourists vs. July.

 

 

Overall Chatham Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel very cold. Highs range from 49°F (9.4°C) and 16.6°F (-8.6°C) with warmer temperatures in the later months. Rain is somewhat common with 7 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 cold weather with high temperatures that are still jacket weather. These months see the least precipitation with 6 to 7 days of precipitation per month. June – August is the busiest season for tourism in Chatham, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 50.9°F (10.5°C) and 21.9°F (-5.6°C), which will feel very chilly given the humidity and wind. It rains or snows a significant amount: 6 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 Chatham to be enjoyable for warm weather travelers. The average high during this season is between 19.6°F (-6.9°C) and 9.8°F (-12.3°C). On average, it rains or snows a fair amount: 8 to 10 times per month. These times of year are fairly slow with tourists.

 

Best Times to TravelCanada › Chatham, ON, Canada