L'Île-Bizard–Sainte-Geneviève weather in August

In August, L'Île-Bizard–Sainte-Geneviève sees average daytime highs of 25°C and overnight lows near 16°C, with 93 mm of rain across 11.3 wet days and about 13.9 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 23°C by the end. The sky is clear or mostly clear about 31% of the time in August, and the air most often feels humid.

Daylight stretches from about 14 h 36 min at the start of August to 13 h 12 min by month's end. Set against the rest of the year, August is L'Île-Bizard–Sainte-Geneviève's 2nd-clearest and 12th-windiest month. For the whole year in context, see L'Île-Bizard–Sainte-Geneviève's year-round climate.

Daytime high
25°
2nd warmest
Overnight low
16°
11th coldest
Rainfall
93 mm
11.3 wet days
Daylight
13 h 54 min
5:02 AM – 6:58 PM
Cloud cover
58%
2nd clearest
Wind
11 km/h
12th windiest
Solar energy
5.09 kWh/m²
Travel score
6.8
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 25°C in the first days to 23°C by the end.

A typical August day in L'Île-Bizard–Sainte-Geneviève reaches about 25°C in the afternoon and slips back to 16°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 28°C. Set against its neighbours, August runs about 1°C cooler than July and about 4°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12617
22517
32517
42517
52517
62517
72517
82517
92517
102517
112516
122516
132516
142516
152516
162516
172516
182516
192416
202416
212416
222415
232415
242415
252415
262415
272415
282415
292315
302314
312314

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

Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

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

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

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

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.

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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 21% of August, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25347
35248
45248
55248
65248
75149
85149
95149
105149
115149
125149
135050
145050
155149
165149
175149
185149
195248
205248
215248
225248
235347
245347
255347
265347
275347
285347
295347
305248
315248

Chance of precipitation in August

Any precipitation

L'Île-Bizard–Sainte-Geneviève gets around 93 mm of rain over 11.3 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 36% and peaks near 41% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
140
241
341
441
541
640
740
840
940
1039
1138
1238
1337
1437
1536
1636
1735
1834
1934
2033
2133
2232
2332
2431
2531
2631
2730
2830
2930
3030
3130

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the humid band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 18% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1152537222
2152536222
3152536222
4152636212
5162636211
6162636211
7162636211
8172635201
9172735201
10182735191
11182734191
12192834181
13202834171
14202834171
15212834161
16222833161
17222833151
18232832151
19242832141
20252831141
21262830141
22282829141
23292828141
24302827141
25312826141
26322825141
27332824141
28342823141
29362822141
30372821141
31382820131

Wind in August

Winds average 11 km/h in August, the calmest month.

Across August, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 36 min at the start of August to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over August. Sunrise moves from 4:43 AM to 5:20 AM, and sunset from 7:20 PM to 6:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.64:437:20
214.64:457:19
314.54:467:17
414.54:477:16
514.44:487:15
614.44:497:13
714.44:507:12
814.34:527:10
914.34:537:09
1014.24:547:07
1114.24:557:06
1214.14:577:04
1314.14:587:03
1414.04:597:01
1514.05:006:59
1613.95:026:58
1713.95:036:56
1813.85:046:54
1913.85:056:53
2013.75:076:51
2113.75:086:49
2213.65:096:48
2313.65:106:46
2413.55:126:44
2513.55:136:42
2613.45:146:40
2713.45:156:38
2813.35:176:37
2913.35:186:35
3013.25:196:33
3113.25:206:31

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.09 kWh/m².

For context, solar energy here swings from a low near 1.23 kWh/m² to a high of 5.92 kWh/m² in June across the year — August's 5.09 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.2Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.0Bright
205.0Bright
215.0Bright
224.9Bright
234.9Bright
244.9Bright
254.8Bright
264.8Bright
274.8Bright
284.7Bright
294.7Bright
304.6Bright
314.6Bright
Planning a trip in August

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

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.8
Sightseeing
1st-best month of the year
5.9
Beach & pool
2nd-best month of the year

August is a reasonable time to visit L'Île-Bizard–Sainte-Geneviève for sightseeing.

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

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

In August, L'Île-Bizard–Sainte-Geneviève sees daytime highs around 25°C and nights near 16°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

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

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 4 — 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
August 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).