Sept-Îles weather in October

In October, Sept-Îles sees average daytime highs of 8°C and overnight lows near 1°C, with 113 mm of precipitation across 12.4 wet days and about 10.5 hours of daylight. It is the 6th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 11°C in the first days to 5°C by the end. The sky is clear or mostly clear about 20% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 24 min at the start of October to 9 h 36 min by month's end. Set against the rest of the year, October is Sept-Îles's 12th-clearest and 7th-windiest month. For the whole year in context, see Sept-Îles's year-round climate.

Daytime high
6th warmest
Overnight low
7th coldest
Precipitation
113 mm
12.4 wet days
Daylight
10 h 30 min
5:57 AM – 4:24 PM
Cloud cover
70%
12th clearest
Wind
13 km/h
7th windiest
Solar energy
2.08 kWh/m²
Travel score
1.3
out of 10

Sept-Îles is city in Quebec, Canada.

Density
13/km²
people per km²
Founded
2003

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 11°C in the first days to 5°C by the end.

A typical October day in Sept-Îles reaches about 8°C in the afternoon and slips back to 1°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 4°C and 12°C. Set against its neighbours, October runs about 7°C cooler than September and about 7°C warmer than November.

-10°10°20°151015202531
Avg high (°C)Avg low (°C)
1124
2124
3114
4114
5113
6113
7103
8103
9103
10102
1192
1292
1392
1492
1582
1681
1781
1881
1971
2071
2171
2271
2370
2460
2560
2660
2760
285-1
295-1
305-1
315-1

How October really feels in Sept-Îles

Once humidity and wind are folded in, October averages 0 days that feel above 32°C and 26 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
26
wind chill below the day's low

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

Sept-Îles 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-10° / -19°6910.411.18.30.0
Feb-8° / -18°548.79.39.70.0
Mar-2° / -11°7510.310.211.50.0
Apr / -4°8210.67.813.50.2
May12° / 8511.41.915.22.8
Jun18° / 8111.6016.15.4
Jul21° / 12°10213.5015.75.8
Aug20° / 11°9312.4014.35.9
Sep15° / 10312.20.112.44.3
Oct / 11312.42.810.51.3
Nov / -6°10312.28.68.80.0
Dec-6° / -14°9511.6127.90.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in October, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 65%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24258
34159
44060
54060
64060
74060
84060
93862
103862
113763
123763
133664
143565
153565
163466
173367
183268
193169
203169
213169
223070
233070
243169
253070
263169
273169
283268
293367
303367
313367

Chance of precipitation in October

Any precipitationSnow

Sept-Îles gets around 113 mm of rain and snow over 12.4 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 41% and peaks near 43% on the wettest days, and about 3 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1392
2382
3382
4383
5383
6383
7384
8384
9395
10395
11405
12406
13406
14417
15418
16418
17429
184210
194210
204211
214312
224313
234314
244315
254315
264316
274317
284318
294319
304320
314321

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1991
2991
3991
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in October

Winds average 13 km/h in October.

Across October, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 24 min at the start of October to 9 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 108 minutes over October. Sunrise moves from 5:32 AM to 6:22 AM, and sunset from 4:57 PM to 3:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.45:324:57
211.35:344:54
311.35:364:52
411.25:374:50
511.15:394:48
611.15:404:45
711.05:424:43
811.05:444:41
910.95:454:39
1010.85:474:37
1110.85:494:35
1210.75:504:33
1310.65:524:30
1410.65:544:28
1510.55:554:26
1610.55:574:24
1710.45:594:22
1810.36:004:20
1910.36:024:18
2010.26:044:16
2110.16:054:14
2210.16:074:12
2310.06:094:10
2410.06:104:08
259.96:124:07
269.86:144:05
279.86:154:03
289.76:174:01
299.76:193:59
309.66:213:58
319.66:223:56

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.08 kWh/m².

For context, solar energy here swings from a low near 0.98 kWh/m² to a high of 5.75 kWh/m² in June across the year — October's 2.08 kWh/m² falls in the middle.

0123151015202531
Solar energy (kWh/m²)Level
12.7Moderate
22.7Moderate
32.6Moderate
42.6Moderate
52.6Moderate
62.5Moderate
72.5Moderate
82.4Moderate
92.4Moderate
102.3Moderate
112.3Moderate
122.2Moderate
132.2Moderate
142.1Moderate
152.1Moderate
162.1Moderate
172.0Moderate
182.0Dim
191.9Dim
201.9Dim
211.9Dim
221.8Dim
231.8Dim
241.8Dim
251.7Dim
261.7Dim
271.7Dim
281.6Dim
291.6Dim
301.6Dim
311.6Dim
Planning a trip in October

Is October a good time to visit Sept-Îles?

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

1.3
Sightseeing
6th-best month of the year
0.0
Beach & pool
6th-best month of the year

October is a weaker month for outdoor sightseeing in Sept-Îles.

What to pack for Sept-Îles in October

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

In October, Sept-Îles sees daytime highs around 8°C and nights near 1°C. Pack a warm layer. Worth having: rain gear. About 12 days see rain.

a warm layerrain gear

Sea temperature near Sept-Îles in October

The nearest coast averages about 7°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 14°C and coldest in February near -1°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

-5°0°5°10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan0Bracing
Feb0Bracing
Mar0Bracing
Apr1Bracing
May5Bracing
Jun10Bracing
Jul14Bracing
Aug14Bracing
Sep11Bracing
Oct7Bracing
Nov4Bracing
Dec1Bracing

UV index in Sept-Îles in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sept-Îles peaks around July 9 at about 6 (high) — a little sun protection helps at midday. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 5 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateModerateLowJul 9UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr4Moderate
May5Moderate
Jun6High
Jul6High
Aug2Low
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low

Air quality in Sept-Îles in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Sept-Îles is worst in June — around 24 µg/m³ PM2.5 (moderate), about 15.2× the cleanest month (December, 2 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 1622 µg/m³Dec 142 µg/m³
PM2.5 (µg/m³)Level
Jan2Good
Feb4Good
Mar7Good
Apr7Good
May10Good
Jun24Moderate
Jul9Good
Aug9Good
Sep6Good
Oct3Good
Nov2Good
Dec2Good
Location & terrain

Where is Sept-Îles?

Sept-Îles sits at 50.2°N, 66.4°W, 5 m above sea level, in Canada. The nearest listed city is Baie-Comeau, 168 km away.

EdmundstonRivière-du-LoupMiramichiChicoutimiSaguenayJonquière

Topography around Sept-Îles

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

Within 3 km, the terrain around Sept-Îles has only modest variations in elevation — a maximum elevation change of 42 m around an average of 6 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 370 m; within 80 km, large variations in elevation — a maximum elevation change of 1,000 m.

The land around Sept-Îles is covered by water (54%) and artificial surfaces (22%) within 3 km, water (52%) and trees (38%) within 16 km, and trees (64%) and water (33%) within 80 km.

3 km
42 m
16 km
370 m
80 km
1,000 m
treesgrasslandartificial surfacesbare terrainwaterwetland
October weather nearby: Baie-Comeau 168 km · Rimouski 249 km · Edmundston 345 km · Rivière-du-Loup 350 km · Miramichi 358 km · Chicoutimi 393 km · Saguenay 393 km · Jonquière 405 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 Sept-Îles (50.2001°, -66.3821°, elevation 5 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).