Sept-Îles in Winter
In winter (December, January and February), Sept-Îles sees average daytime highs around -8°C and overnight lows near -17°C, with 219 mm of precipitation over about 31 wet days across the season. It is the coldest season of the year and the driest season of the year.
Over the season highs ease from about -4°C in early December to -6°C by late February. The sky is clear or mostly clear about 32% of the time across winter, and the air most often feels dry.
Winter is Sept-Îles's weakest season of the year to visit on our travel score. For the whole year in context, see Sept-Îles's year-round climate.
- Avg daytime high
- -8°C
- coldest season of the year
- Avg overnight low
- -17°C
- Precipitation
- 219 mm
- 31 wet days
- Avg wind
- 14 km/h
- Travel score
- 0.0
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Sept-Îles in Winter
Over the season highs ease from about -4°C in early December to -6°C by late February.
A typical winter day in Sept-Îles reaches about -8°C and drops to -17°C overnight. The warmest of the three months is December, the coolest January.
How winter really feels in Sept-Îles
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 90 that feel at or below 0°C.
The story in winter is cold — wind chill drags the overnight "feels like" below the raw low.
Sept-Îles weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | -10° / -19° | 69 | 10.4 | 11.1 | 8.3 | 0.0 |
| Feb | -8° / -18° | 54 | 8.7 | 9.3 | 9.7 | 0.0 |
| Mar | -2° / -11° | 75 | 10.3 | 10.2 | 11.5 | 0.0 |
| Apr | 4° / -4° | 82 | 10.6 | 7.8 | 13.5 | 0.2 |
| May | 12° / 2° | 85 | 11.4 | 1.9 | 15.2 | 2.8 |
| Jun | 18° / 9° | 81 | 11.6 | 0 | 16.1 | 5.4 |
| Jul | 21° / 12° | 102 | 13.5 | 0 | 15.7 | 5.8 |
| Aug | 20° / 11° | 93 | 12.4 | 0 | 14.3 | 5.9 |
| Sep | 15° / 7° | 103 | 12.2 | 0.1 | 12.4 | 4.3 |
| Oct | 8° / 1° | 113 | 12.4 | 2.8 | 10.5 | 1.3 |
| Nov | 1° / -6° | 103 | 12.2 | 8.6 | 8.8 | 0.0 |
| Dec | -6° / -14° | 95 | 11.6 | 12 | 7.9 | 0.0 |
Cloud cover in Winter
The sky is clear or mostly clear about 32% of the time across winter.
Chance of precipitation in Winter
Sept-Îles gets around 219 mm of rain and snow over 31 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 14 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 8 h 06 min in early December to 10 h 30 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 1.5 kWh/m².
Is winter a good time to visit Sept-Îles?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a weaker month for outdoor sightseeing in Sept-Îles.
What to pack for Sept-Îles in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Sept-Îles sees daytime highs around -8°C and nights near -17°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 31 days see rain.
Sea temperature near Sept-Îles in Winter
The nearest coast averages about 0°C across winter — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 0 | 0 | 0 | 1 | 5 | 10 | 14 | 14 | 11 | 7 | 4 | 1 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 0 | Bracing |
| Feb | 0 | Bracing |
| Mar | 0 | Bracing |
| Apr | 1 | Bracing |
| May | 5 | Bracing |
| Jun | 10 | Bracing |
| Jul | 14 | Bracing |
| Aug | 14 | Bracing |
| Sep | 11 | Bracing |
| Oct | 7 | Bracing |
| Nov | 4 | Bracing |
| Dec | 1 | Bracing |
UV index in Sept-Îles in Winter
Clear-sky midday UV across winter averages around 1. 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 4 | 5 | 6 | 6 | 2 | 4 | 2 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | Moderate | High | High | Low | Moderate | Low | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 3 | Moderate |
| Apr | 4 | Moderate |
| May | 5 | Moderate |
| Jun | 6 | High |
| Jul | 6 | High |
| Aug | 2 | Low |
| Sep | 4 | Moderate |
| Oct | 2 | Low |
| Nov | 1 | Low |
| Dec | 1 | Low |
Air quality in Sept-Îles in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 2 | 4 | 7 | 7 | 10 | 24 | 9 | 9 | 6 | 3 | 2 | 2 |
| Level | Good | Good | Good | Good | Good | Moderate | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 2 | Good |
| Feb | 4 | Good |
| Mar | 7 | Good |
| Apr | 7 | Good |
| May | 10 | Good |
| Jun | 24 | Moderate |
| Jul | 9 | Good |
| Aug | 9 | Good |
| Sep | 6 | Good |
| Oct | 3 | Good |
| Nov | 2 | Good |
| Dec | 2 | Good |
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.
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.
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
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.