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Explore Canada's stunning lakes: Lake Louise, Lake Superior, Maligne Lake, Emerald Lake, and Lake Okanagan, each offering unique beauty and activities.
Waterloo Weather in September
Waterloo in September sees pleasant temperatures, with highs around 21°C (70°F) and overnight lows of 10°C (50°F). Rainfall is fairly high at around 114 mm (4.5 in) on average, so pack waterproofs just in case.
Rainfall in Waterloo in September
Historically, the month has about 13 days of rain, averaging 114 mm (4.5 in) in total. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Waterloo in September
In September, Waterloo sees pleasant temperatures, with highs of 21°C (70°F). Nights drop to around 10°C (50°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. At 10°C (50°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.If your ideal day consists of dry skies and pleasant temperatures, June, July, August and September typically offer the best circumstances for Waterloo.
Waterloo Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
21°C (70°F)
Chance of Rain
42%
Precipitation
114 mm (4.5 in)
Rainy days
13 days
Waterloo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Waterloo - and find the best time to visit.
Best Places in Canada in September
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in September →
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 Waterloo in September
Pleasant temperatures in September 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.
What To Do in Waterloo in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping3/10 -
Outdoor sports9/10
Waterloo 3-Day Forecast
More climate data for Waterloo
See the full Waterloo climate overview or explore weather in Canada.
Popular in September
Where to go in September - average daytime high across popular destinations.
Toronto
22°C (72°F) Niagara Falls23°C (73°F) Montréal
22°C (72°F) Ottawa22°C (72°F) Quebec City
20°C (68°F) Vancouver19°C (66°F) Calgary19°C (66°F) Whistler15°C (59°F) Bucket list
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The 5 most beautiful lakes in Canada
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