The Frontier Gazette & Almanack
“Fair Warning for Every Town Under the Sky” · Est. 1881
Measure in

Niagara Weather in September

Niagara in September

The short of it: Niagara in September averages a high of 22 °C (71 °F) and a low of 13 °C (55 °F), with 71 mm (2.8 in) of rain and about 12 h 26 min of daylight. Rated 3 of 5 for a visit; the best months are June and September. Source: TerraClimate climate normals, 1991–2020.

Average high 22° · low 13° · rain 71 mm · daylight 12 h 26 min

✦✦✦ Fair for a visit · best months: June & September

September in Niagara brings afternoons near 22° and nights around 13°, with about 71 mm of rain over the month. Much like August: highs about 22°, nights near 13°. Easy travelling weather. Wet spells are common — about 71 mm, the 6th wettest month.

The sun is up for about 12 h 26 min in mid-September, 92 minutes less than a month before.

For the traveller: pack light clothes and a jacket for the evening, and an oilskin besides. The Almanac rates September 3 of 5 for a visit; the finest months here are June and September.

Against its neighbours, Niagara runs warmer than most and wetter than most in September. Waterfront Communities-The Island, 3 km to the ESE, sees much the same highs.

September in Niagara, by the numbers

Warmth rank
4th warmest of 12
Rain rank
6th wettest of 12
Versus August
4° colder, 4.0 mm less rain
Versus October
7° warmer
Day–night spread
9°
Snow season
Dec–Mar
Daylight, mid-month
12 h 26 min
Average wind
12 km/h

Neighbouring Towns

September averages · distance by the crow’s flight
TownDistanceHighLowRain
Waterfront Communities-The IslandOntario3 km ESE22°13°71 mm
Church-Yonge CorridorOntario3 km NE22°13°71 mm
AnnexOntario3 km N22°13°73 mm
Dovercourt-Wallace Emerson-JunctionOntario3 km NW22°13°70 mm
South RiverdaleOntario6 km E22°13°71 mm
Mount Pleasant WestOntario7 km N22°13°73 mm
TorontoOntario7 km N22°13°73 mm
MimicoOntario9 km WSW22°13°67 mm

The Almanac · Niagara Month by Month

Climate normals 1991–2020 · pick a month
PrecipitationAverage highAverage low
Fair
The Almanac Speaks
September
✦✦✦✦✦

Much like August: highs about 22°, nights near 13°. Easy travelling weather. Wet spells are common — about 71 mm, the 6th wettest month.

Climate of Niagara by month
MonthHighLowRainWindDaylightVisit
January-1°-7°60 mm17 km/h9 h 16 min✦
February0°-7°52 mm18 km/h10 h 26 min✦
March5°-2°50 mm16 km/h11 h 48 min✦✦
April11°3°83 mm16 km/h13 h 22 min✦✦
May18°9°79 mm13 km/h14 h 42 min✦✦✦
June24°14°75 mm12 km/h15 h 25 min✦✦✦
July27°17°74 mm11 km/h15 h 7 min✦✦✦
August26°17°75 mm11 km/h13 h 58 min✦✦✦
September22°13°71 mm12 km/h12 h 26 min✦✦✦
October15°7°69 mm14 km/h10 h 55 min✦✦✦
November8°2°70 mm15 km/h9 h 36 min✦✦
December3°-3°61 mm17 km/h8 h 57 min✦✦

Questions Readers Ask about Niagara in September

Answered from the wire & the Almanac

What is the weather like in Niagara in September?

Days average 22 °C (71 °F) and nights 13 °C (55 °F), with about 71 mm (2.8 in) of rain over the month. Much like August: highs about 22°, nights near 13°. Easy travelling weather. Wet spells are common — about 71 mm, the 6th wettest month.

Is September a good time to visit Niagara?

The Almanac gives September 3 of 5 (fair). The best months are June and September.

How long are the days in Niagara in September?

In mid-September the sun is up for about 12 h 26 min. The days are shortening — from 8 h 57 min in December to 15 h 25 min in June.

Does it snow in Niagara in September?

Hardly — September nights average 13 °C (55 °F), above freezing.

What should I pack for Niagara in September?

Light clothes and a jacket for the evening, plus a good raincoat — it is a wet month.

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The Editor’s Remark

“Weather is the only news that never grows stale. Each morning the sky writes its own front page, and we at Wanted Weather are but its telegraph operators.”— J. Whitmore, Editor
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