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Casselman Weather in May
May in Casselman typically sees daytime highs of 21°C (70°F) and nighttime lows of 8°C (46°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Casselman in May
You can expect rain on roughly 12 days based on historical data, averaging 99 mm (3.9 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Casselman in May
If you're visiting Casselman in May, expect excellent temperatures with highs of 21°C (70°F) and overnight lows of 8°C (46°F). The difference between afternoon and evening temperatures is usually noticeable. At 8°C (46°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Casselman in May
The days are predominantly sunny, with an estimated total of around 231 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, May is one of the best months to visit Casselman.
Casselman Temperature in May
Min Temperature
8°C (46°F)
Max Temperature
21°C (70°F)
Chance of Rain
40%
Precipitation
99 mm (3.9 in)
Rainy days
12 days
Humidity
49% *
Sunshine
231 hours *
Percentage Sunshine
50% *
* Data from: Ottawa, Canada (49 KM, 30 Miles).
Casselman Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Casselman - and find the best time to visit.
Best Places in Canada in May
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Casselman in May
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Casselman in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Barbeque8/10 -
Camping4/10 -
Outdoor sports9/10
Casselman 3-Day Forecast
More climate data for Casselman
Temperature Rainfall Sunshine Humidity
See the full Casselman climate overview or explore weather in Canada.
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Where to go in May - average daytime high across popular destinations.
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