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

Gravenhurst Weather in September

Gravenhurst in September

The short of it: Gravenhurst in September averages a high of 21 °C (69 °F) and a low of 10 °C (49 °F), with 102 mm (4.0 in) of rain and about 12 h 27 min of daylight. Rated 3 of 5 for a visit; the best months are June and August. Source: TerraClimate climate normals, 1991–2020.

Average high 21° · low 10° · rain 102 mm · daylight 12 h 27 min

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

Thirty years of records give Gravenhurst an average September high of 21°, a low of 10° and some 102 mm of rain. Much like August: highs about 21°, nights near 10°. Easy travelling weather. Wet spells are common — about 102 mm, the 5th wettest month.

The sun is up for about 12 h 27 min in mid-September, 96 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 August.

Against its neighbours, Gravenhurst runs cooler than most and wetter than most in September. Bracebridge, 14 km to the NNE, sees much the same highs.

September in Gravenhurst, by the numbers

Warmth rank
4th warmest of 12
Rain rank
5th wettest of 12
Versus August
4° colder, 18 mm more rain
Versus October
8° warmer
Day–night spread
11°
Snow season
Nov–Apr
Daylight, mid-month
12 h 27 min
Average wind
12 km/h

Neighbouring Towns

September averages · distance by the crow’s flight
TownDistanceHighLowRain
BracebridgeOntario14 km NNE21°9°104 mm
Amigo BeachOntario25 km S21°10°92 mm
Patrick Fogarty Catholic Secondary SchoolOntario33 km S21°10°89 mm
OrilliaOntario35 km S21°10°90 mm
MidlandOntario45 km WSW21°11°91 mm
PenetanguisheneOntario46 km WSW21°11°91 mm
HuntsvilleOntario48 km NNE20°9°104 mm
ElmvaleOntario54 km SW21°10°90 mm

The Almanac · Gravenhurst Month by Month

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

Much like August: highs about 21°, nights near 10°. Easy travelling weather. Wet spells are common — about 102 mm, the 5th wettest month.

Climate of Gravenhurst by month
MonthHighLowRainWindDaylightVisit
January-4°-14°104 mm15 km/h9 h 8 min✦
February-3°-14°72 mm15 km/h10 h 21 min✦
March3°-9°67 mm15 km/h11 h 47 min✦
April10°-1°90 mm15 km/h13 h 26 min✦
May18°5°98 mm14 km/h14 h 49 min✦✦✦
June23°11°87 mm12 km/h15 h 35 min✦✦✦
July25°13°83 mm12 km/h15 h 16 min✦✦✦
August24°13°84 mm11 km/h14 h 3 min✦✦✦
September21°10°102 mm12 km/h12 h 27 min✦✦✦
October13°4°110 mm15 km/h10 h 52 min✦✦
November6°-2°105 mm15 km/h9 h 29 min✦
December0°-8°103 mm16 km/h8 h 48 min✦

Questions Readers Ask about Gravenhurst in September

Answered from the wire & the Almanac

What is the weather like in Gravenhurst in September?

Days average 21 °C (69 °F) and nights 10 °C (49 °F), with about 102 mm (4.0 in) of rain over the month. Much like August: highs about 21°, nights near 10°. Easy travelling weather. Wet spells are common — about 102 mm, the 5th wettest month.

Is September a good time to visit Gravenhurst?

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

How long are the days in Gravenhurst in September?

In mid-September the sun is up for about 12 h 27 min. The days are shortening — from 8 h 48 min in December to 15 h 35 min in June.

Does it snow in Gravenhurst in September?

Hardly — September nights average 10 °C (49 °F), above freezing.

What should I pack for Gravenhurst in September?

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

More Towns in Canada

All towns in Canada →

Toronto · Montréal · Calgary · Ottawa · Edmonton · Winnipeg · Mississauga · Vancouver · Brampton · Hamilton · Surrey · Québec

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
Telegrams for your townsWarnings sent to this phone or computer