Saint-Lazare weather in October

In October, Saint-Lazare sees average daytime highs of 13°C and overnight lows near 4°C, with 109 mm of precipitation across 11.6 wet days and about 10.7 hours of daylight. It is the 6th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 16°C in the first days to 9°C by the end. The sky is clear or mostly clear about 21% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 30 min at the start of October to 9 h 54 min by month's end. Set against the rest of the year, October is Saint-Lazare's 7th-clearest and 7th-windiest month. For the whole year in context, see Saint-Lazare's year-round climate.

Daytime high
13°
6th warmest
Overnight low
7th coldest
Precipitation
109 mm
11.6 wet days
Daylight
10 h 42 min
6:21 AM – 5:02 PM
Cloud cover
67%
7th clearest
Wind
12 km/h
7th windiest
Solar energy
2.46 kWh/m²
Travel score
3.4
out of 10

Saint-Lazare is city in Montérégue, Quebec, Canada.

Density
295/km²
people per km²
Founded
1875

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 16°C in the first days to 9°C by the end.

A typical October day in Saint-Lazare reaches about 13°C in the afternoon and slips back to 4°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 19°C. Set against its neighbours, October runs about 8°C cooler than September and about 7°C warmer than November.

10°20°151015202531
Avg high (°C)Avg low (°C)
1177
2167
3167
4167
5166
6156
7156
8156
9156
10145
11145
12145
13145
14135
15134
16134
17134
18124
19124
20123
21113
22113
23113
24113
25102
26102
27102
28102
2992
3091
3191

How October really feels in Saint-Lazare

Once humidity and wind are folded in, October averages 0 days that feel above 32°C and 10 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
10
wind chill below the day's low

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

Saint-Lazare weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-5° / -14°7710.69.48.90.0
Feb-4° / -13°6298.310.10.0
Mar / -7°7510.4711.60.1
Apr11° / 10511.42.913.22.6
May19° / 10011.50.214.75.7
Jun24° / 13°10511.7015.46.4
Jul26° / 16°10012.5015.16.3
Aug25° / 15°9811.2013.96.7
Sep20° / 10°9610.2012.36.3
Oct13° / 10911.60.610.73.4
Nov / -2°8811.43.89.30.4
Dec-2° / -9°8611.69.18.60.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 64%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14060
23961
34060
44060
53961
63961
73961
83961
93961
103862
113961
123961
133862
143862
153763
163763
173763
183664
193565
203565
213466
223466
233367
243466
253367
263367
273367
283268
293268
303268
313268

Chance of precipitation in October

Any precipitationSnow

Saint-Lazare gets around 109 mm of rain and snow over 11.6 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 38% and peaks near 40% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1360
2360
3360
4360
5360
6360
7360
8360
9370
10370
11371
12381
13381
14381
15391
16391
17391
18392
19392
20402
21403
22393
23393
24394
25394
26394
27395
28395
29395
30385
31385

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
187841
287841
389731
491630
592620
693520
793520
894420
995410
1095410
1196310
1296310
1396310
1496310
1596310
1697210
1797210
1897210
1998200
2098200
2198200
2298200
2399100
2499100
2599100
2699100
2799100
2899100
2999100
3099100
31100000

Wind in October

Winds average 12 km/h in October.

Across October, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 30 min at the start of October to 9 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 96 minutes over October. Sunrise moves from 6:01 AM to 6:42 AM, and sunset from 5:30 PM to 4:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:015:30
211.46:025:28
311.46:035:27
411.36:055:25
511.36:065:23
611.26:075:21
711.26:095:19
811.16:105:17
911.16:115:15
1011.06:135:13
1111.06:145:11
1210.96:155:10
1310.96:175:08
1410.86:185:06
1510.76:195:04
1610.76:215:02
1710.66:225:01
1810.66:234:59
1910.56:254:57
2010.56:264:56
2110.46:284:54
2210.46:294:52
2310.36:304:51
2410.36:324:49
2510.26:334:48
2610.26:354:46
2710.16:364:44
2810.16:374:43
2910.06:394:41
3010.06:404:40
319.96:424:39

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.46 kWh/m².

For context, solar energy here swings from a low near 1.22 kWh/m² to a high of 5.97 kWh/m² in June across the year — October's 2.46 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.1Moderate
23.0Moderate
33.0Moderate
43.0Moderate
52.9Moderate
62.9Moderate
72.8Moderate
82.8Moderate
92.8Moderate
102.7Moderate
112.7Moderate
122.6Moderate
132.6Moderate
142.6Moderate
152.5Moderate
162.5Moderate
172.4Moderate
182.4Moderate
192.3Moderate
202.3Moderate
212.3Moderate
222.2Moderate
232.2Moderate
242.1Moderate
252.1Moderate
262.0Moderate
272.0Moderate
282.0Dim
291.9Dim
301.9Dim
311.9Dim
Planning a trip in October

Is October a good time to visit Saint-Lazare?

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

3.4
Sightseeing
6th-best month of the year
0.2
Beach & pool
6th-best month of the year

October is a weaker month for outdoor sightseeing in Saint-Lazare.

What to pack for Saint-Lazare in October

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

In October, Saint-Lazare sees daytime highs around 13°C and nights near 4°C. Worth packing: a warm layer and rain gear. About 12 days see rain.

a warm layerrain gear

UV index in Saint-Lazare in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Saint-Lazare 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 Saint-Lazare?

Saint-Lazare sits at 45.4°N, 74.1°W, 56 m above sea level, in Canada. The nearest listed city is Vaudreuil-Dorion, 8.0 km away.

Topography around Saint-Lazare

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint-Lazare.

Within 3 km, the terrain around Saint-Lazare has only modest variations in elevation — a maximum elevation change of 77 m around an average of 67 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 257 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,210 m.

The land around Saint-Lazare is covered by trees (64%) within 3 km, trees (34%) and cropland (32%) within 16 km, and trees (52%) and cropland (31%) within 80 km.

3 km
77 m
16 km
257 m
80 km
1,210 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Vaudreuil-Dorion 8.0 km · Les Coteaux 15 km · Salaberry-de-Valleyfield 17 km · Pierrefonds 20 km · Beaconsfield 21 km · L'Île-Bizard–Sainte-Geneviève 21 km · Kirkland 22 km · Deux-Montagnes 23 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 Saint-Lazare (45.4001°, -74.1326°, elevation 56 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).