Casselman Weather in August

Casselman in August sees high daytime temperatures of 27°C (81°F) and nighttime lows of 14°C (57°F). Rainfall is fairly high this month at around 98 mm (3.9 in), so pack a rain jacket to stay dry.

Rainfall in Casselman in August

Rain is expected on roughly 12 days, totalling around 98 mm (3.9 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Casselman in August

Casselman has perfect weather in August, with days reaching 27°C (81°F) and nights cooling to 14°C (57°F). During August, the summer season is in full swing. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 14°C (57°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Casselman in August

The days are predominantly sunny, with an estimated total of around 251 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

If you favor pleasant temperatures and minimal rainfall, August is one of the best months to visit Casselman.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Canada, check out our Casselman's climate page.

Casselman Temperature in August

Min Temperature 14°C (57°F)  

Max Temperature 27°C (81°F)  

Chance of Rain 39%  

Precipitation 98 mm (3.9 in)  

Rainy days 12 days  

Humidity 54% *  

Sunshine 251 hours *  

Percentage Sunshine 57% *  

* Data from: Ottawa, Canada (49 KM, 30 Miles).

What to Wear in Casselman in August

Warm but pleasant conditions in Casselman in August. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Casselman in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

8/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Canada, check out our Casselman's climate page.

More climate data for Casselman

Temperature Rainfall Sunshine Humidity

See the full Casselman climate overview or explore weather in Canada.