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Things to Do in Ontario in September
Real historical weather for Ontario in September: average highs of 20°C and lows of 10°C, with around 68mm of rain (averaged over the last 3 years).
20°C
Average high
10°C
Average low
68mm
Typical rainfall
Real things to do in Ontario in September
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3hr Discover Sailing Adventure
★ 5.0(10 reviews)· 3 hrs
From €171

Private Transfer - Toronto to or from London Ontario
★ 5.0(5 reviews)· 2 hrs
From €382

Discover Maple Sugar Bush Tour
★ 5.0(96 reviews)· 1h 45m
From €25

Fall for Niagara Tour
★ 4.8(981 reviews)· 9 hrs
From €55

Niagara Falls Day Tour from Toronto (9 Hours)
★ 4.7(1,364 reviews)· 9 hrs
From €50

8 Hour Ontario Wine Tour with Cheese and Charcuterie
★ 4.5(16 reviews)· 9 hrs
From €223

Art Gallery of Ontario: General Admission
★ 4.4(170 reviews)· 3 hrs
From €19

Royal Ontario Museum Admission
★ 4.3(444 reviews)· 4 hrs
From €17

1000 Islands 90-minute Sightseeing Cruise
★ 3.8(87 reviews)· 1h 30m
From €28

Ontario City to Ontario Airport (ONT) - Departure Private Transfer
· 10 min
From €61
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FAQs — Ontario in September
Based on real historical data (averaged over the last 3 years), expect highs around 20°C and lows around 10°C, with roughly 68mm of rain.