L'Île-Bizard–Sainte-Geneviève in Fall

In fall (September, October and November), L'Île-Bizard–Sainte-Geneviève sees average daytime highs around 13°C and overnight lows near 5°C, with 289 mm of precipitation over about 34 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.

Over the season highs ease from about 23°C in early September to 2°C by late November. The sky is clear or mostly clear about 22% of the time across fall, and the air most often feels dry.

Fall is L'Île-Bizard–Sainte-Geneviève's 2nd-best season to visit on our travel score. For the whole year in context, see L'Île-Bizard–Sainte-Geneviève's year-round climate.

Avg daytime high
13°C
2nd-warmest season
Avg overnight low
5°C
Precipitation
289 mm
34 wet days
Avg wind
13 km/h
Travel score
3.4
2nd-best season
Months
Sep · Oct · Nov

Temperature in L'Île-Bizard–Sainte-Geneviève in Fall

Average highAverage lowShaded bands: 10–90% of days

Over the season highs ease from about 23°C in early September to 2°C by late November.

A typical fall day in L'Île-Bizard–Sainte-Geneviève reaches about 13°C and drops to 5°C overnight. The warmest of the three months is September, the coolest November.

-10°10°20°30°SepOctNov

How fall really feels in L'Île-Bizard–Sainte-Geneviève

Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 35 that feel at or below 0°C.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
35
wind chill below the day's low

The story in fall is cold — wind chill drags the overnight "feels like" below the raw low.

L'Île-Bizard–Sainte-Geneviève weather by month

How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-5° / -14°7510.59.48.90.0
Feb-4° / -13°618.98.210.10.0
Mar / -6°7410.26.711.60.0
Apr10° / 10311.72.813.22.1
May18° / 9511.50.114.75.3
Jun23° / 14°10311.9015.46.4
Jul26° / 17°9112.5015.16.4
Aug25° / 16°9311.3013.96.8
Sep20° / 12°9310.3012.36.3
Oct13° / 10811.60.610.73.3
Nov / -1°8711.63.79.30.5
Dec-2° / -8°8611.59.28.60.0

Cloud cover in Fall

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time across fall.

0%25%50%75%100%SepOctNov

Chance of precipitation in Fall

Any precipitationSnow

L'Île-Bizard–Sainte-Geneviève gets around 289 mm of rain and snow over 34 wet days across fall. The line is the day-by-day chance of measurable precipitation.

0%10%20%30%40%50%SepOctNov

Humidity in Fall

DryComfortableHumidMuggyOppressiveMiserable

Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

0%25%50%75%100%SepOctNov

Wind in Fall

Winds average 13 km/h across fall.

05101520SepOctNov

Sunrise & sunset in Fall

DaylightNight

Daylight runs from about 13 h 06 min in early September to 8 h 48 min by late November. The lit band spans sunrise to sunset each day.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMSepOctNov

Solar energy in Fall

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across fall, about 2.6 kWh/m².

024SepOctNov
Planning a trip in fall

Is fall a good time to visit L'Île-Bizard–Sainte-Geneviève?

Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

3.4
Sightseeing
2nd-best month of the year
1.2
Beach & pool
2nd-best month of the year

fall is a weaker month for outdoor sightseeing in L'Île-Bizard–Sainte-Geneviève.

What to pack for L'Île-Bizard–Sainte-Geneviève in Fall

From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In fall, L'Île-Bizard–Sainte-Geneviève sees daytime highs around 13°C and nights near 5°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 34 days see rain.

a warm layera heavy coatrain gear

UV index in L'Île-Bizard–Sainte-Geneviève in Fall

LowModerateHighVery highExtreme

Clear-sky midday UV across fall averages around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in L'Île-Bizard–Sainte-Geneviève peaks around July 13 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 10 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 13UV 8Jan 10UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr4Moderate
May6High
Jun6High
Jul8Very high
Aug4Moderate
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is L'Île-Bizard–Sainte-Geneviève?

L'Île-Bizard–Sainte-Geneviève sits at 45.5°N, 73.9°W, 46 m above sea level, in Canada. The nearest listed city is Pierrefonds, 4.0 km away.

Topography around L'Île-Bizard–Sainte-Geneviève

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of L'Île-Bizard–Sainte-Geneviève.

Within 3 km, the terrain around L'Île-Bizard–Sainte-Geneviève has only modest variations in elevation — a maximum elevation change of 57 m around an average of 31 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 258 m; within 80 km, large variations in elevation — a maximum elevation change of 864 m.

The land around L'Île-Bizard–Sainte-Geneviève is covered by trees (43%) and water (27%) within 3 km, trees (31%), water (25%) and artificial surfaces (22%) within 16 km, and trees (48%) and cropland (35%) within 80 km.

3 km
57 m
16 km
258 m
80 km
864 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
Fall weather nearby: Pierrefonds 4.0 km · Pierrefonds-Roxboro 4.0 km · Deux-Montagnes 5.0 km · Kirkland 5.0 km · Dollard-Des Ormeaux 6.0 km · Beaconsfield 7.0 km · Saint-Eustache 8.0 km · Pointe-Claire 8.0 km

Canada travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 83% of US
price level, 2025
GDP per capita
$55,698
2025
Happiness
6.7 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
2
per 100k, 2023
Road deaths
5.3
per 100k/yr, 2019
Income group
High
World Bank
Religion
Christian 53%none 35%Muslim 5%Hindu 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for L'Île-Bizard–Sainte-Geneviève (45.4939°, -73.8956°, elevation 46 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.