Typical Weather

Weather in Niagara Falls in September

How warm is it in Niagara Falls in September?

In September the typical daytime high in Niagara Falls is 21.5 °C on average, from 24.2 °C at the start to 18.3 °C at the end of the month.

That is 4.3 °C cooler than in August and 7.0 °C warmer than in October.

The last 10 years were 1.4 °C warmer than more than 40 years ago.

Click a day for more: afternoon and night, the usual range, records and how fast it is warming.

Measured at the weather station Toronto, 69 km away.