Home › Quebec › L'Islet-sur-Mer
Weather in L'Islet-sur-Mer
Quebec, 7 m · continuously updated
Charlevoix (Mrc) (27 km) · 8 °C · ECCC 08:00
- Wind
- –
- Humidity
- –
- Rain ahead
- –
- Sunset
- –
Temperature · last 4 and next 28 hours
L'Islet-sur-Mer weather: the next 24 hours
Updated hourly.
L'Islet-sur-Mer 14-day forecast
Two-week trend.
Sun and golden hours
Sunrise –, golden light until –
Sunset –, golden light from –
–
Air quality
European index, modelled by Copernicus (CAMS).
UV index
Daily maximum — protection advised from 3.
Freezing level
Snow settles about 300 m below it.
Around L'Islet-sur-Mer
Neighbouring towns, as the crow flies.
Official weather warnings
No active warning for L'Islet-sur-Mer.
Updated 02 Nov 13:13.
Data Source: Environment and Climate Change Canada, under the Data Services End-use Licence. Warnings are shown unaltered; this site is not endorsed by Environment and Climate Change Canada.
Is there an active weather warning for L'Islet-sur-Mer?
No active warning for L'Islet-sur-Mer.
Latest measurement near L'Islet-sur-Mer
Measured at Charlevoix (Mrc), 27 km away from L'Islet-sur-Mer, November 2, 08:00 EST. This Environment and Climate Change Canada weather station is at an elevation of 722 m (Quebec). These are measured values, not a forecast.
| Temperature | 7.7 °C |
|---|---|
| Wind | 8 km/h NW |
| Gusts, last hour | — |
| Precipitation, last hour | 0.0 mm |
| Humidity | 88 % |
| Pressure (sea level) | 1021 hPa |
Past 24 hours: low 1.3 °C, high 8.0 °C, 0.0 mm of precipitation.
L'Islet-sur-Mer lies at about 7 m; the station is at 722 m. With 715 m of difference in elevation, the temperature in L'Islet-sur-Mer can differ by a degree or more from the one measured at the station. No station within 15 km is closer to L'Islet-sur-Mer in elevation.
Latest measurements from the Canadian weather stations
Data Source: Environment and Climate Change Canada. Reports are published as measured, without quality control, and may contain errors or gaps. Not an official product of the Government of Canada and not endorsed by it. Data Services End-use Licence
Today in L'Islet-sur-Mer
- Best time to air the house: tomorrow, between 6:00 and 8:00. The outdoor dew point drops to 1.2 °C; once warmed to 20 °C, that air holds only 29 % humidity, against 50 % in a typical home: opening the windows dries the house. How it is calculated
- Washing outside: only just possible. Even hung out between 8:00 and 17:00, it will take about 9 h; bring it in before the air turns cooler. How it is calculated
- Garden: 12.9 mm of rain expected within 48 h, against a need of 1.8 mm. No need to water, the rain will do it. How it is calculated
- Terrace and barbecue between 18:00 and 23:00: dry but cool, 11 °C at 8 pm and wind at 16 km/h. Wrap up warm, or move indoors. How it is calculated
Calculated from Open-Meteo forecasts of 2026-11-02 08:13 (local time): model values, not measurements. All of today's advice
7-day forecast for L'Islet-sur-Mer
Today (Monday 2 Nov) in L'Islet-sur-Mer: overcast, 7 to 12 °C, precipitation 0.0 mm (21 %), wind up to 28 km/h. Tomorrow: light rain, 2 to 10 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | overcast | 7 °C | 12 °C | 0.0 mm | 28 km/h |
| Tomorrow | light rain | 2 °C | 10 °C | 7.8 mm | 20 km/h |
| Wed 4 Nov | light rain | 4 °C | 13 °C | 6.4 mm | 37 km/h |
| Thu 5 Nov | light drizzle | 8 °C | 12 °C | 1.6 mm | 20 km/h |
| Fri 6 Nov | light drizzle | 9 °C | 12 °C | 0.2 mm | 20 km/h |
| Sat 7 Nov | showers | 7 °C | 14 °C | 52.0 mm | 38 km/h |
| Sun 8 Nov | showers | 6 °C | 11 °C | 7.1 mm | 36 km/h |
Tomorrow's weather in L'Islet-sur-Mer
Tomorrow, Tuesday 3 Nov, in L'Islet-sur-Mer: light rain, from 2 to 10 °C, 7.8 mm of precipitation (probability 85 %), wind up to 20 km/h.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 00:00 |  overcast | 10 °C | 0.0 mm | 14 % | 8 km/h |
| 03:00 | overcast | 8 °C | 0.0 mm | 18 % | 15 km/h |
| 06:00 | overcast | 6 °C | 0.0 mm | 25 % | 17 km/h |
| 09:00 | overcast | 5 °C | 0.0 mm | 27 % | 19 km/h |
| 12:00 | overcast | 5 °C | 0.0 mm | 47 % | 18 km/h |
| 15:00 |  drizzle | 4 °C | 0.7 mm | 71 % | 18 km/h |
| 18:00 | drizzle | 2 °C | 0.7 mm | 62 % | 20 km/h |
| 21:00 |  light rain | 2 °C | 1.4 mm | 85 % | 17 km/h |
Frequently asked questions
Will it rain tomorrow in L'Islet-sur-Mer?
Yes: 7.8 mm expected, probability 85 %.
How warm will it be tomorrow in L'Islet-sur-Mer?
Between 2 and 10 °C.
The weekend
This weekend in L'Islet-sur-Mer: Saturday showers, 7 to 14 °C, Sunday showers, 6 to 11 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Sat 7 Nov | showers | 7 °C | 14 °C | 52.0 mm | 38 km/h |
| Sun 8 Nov | showers | 6 °C | 11 °C | 7.1 mm | 36 km/h |
Hour by hour
The next 48 hours in L'Islet-sur-Mer, hour by hour: temperature from 2 to 12 °C, 12.9 mm of rain expected.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 08:00 |  mostly sunny | 10 °C | 0.0 mm | 2 % | 24 km/h |
| 09:00 | overcast | 11 °C | 0.0 mm | 4 % | 27 km/h |
| 10:00 | overcast | 10 °C | 0.0 mm | 5 % | 28 km/h |
| 11:00 | overcast | 11 °C | 0.0 mm | 9 % | 27 km/h |
| 12:00 | overcast | 12 °C | 0.0 mm | 4 % | 27 km/h |
| 13:00 | overcast | 12 °C | 0.0 mm | 3 % | 27 km/h |
| 14:00 | overcast | 12 °C | 0.0 mm | 4 % | 26 km/h |
| 15:00 | overcast | 11 °C | 0.0 mm | 6 % | 24 km/h |
| 16:00 | overcast | 11 °C | 0.0 mm | 4 % | 23 km/h |
| 17:00 | overcast | 10 °C | 0.0 mm | 4 % | 20 km/h |
| 18:00 | overcast | 10 °C | 0.0 mm | 7 % | 18 km/h |
| 19:00 | overcast | 11 °C | 0.0 mm | 10 % | 18 km/h |
| 20:00 | overcast | 11 °C | 0.0 mm | 10 % | 15 km/h |
| 21:00 | overcast | 11 °C | 0.0 mm | 11 % | 13 km/h |
| 22:00 | overcast | 11 °C | 0.0 mm | 21 % | 14 km/h |
| 23:00 | overcast | 11 °C | 0.0 mm | 18 % | 16 km/h |
| 00:00 | overcast | 10 °C | 0.0 mm | 14 % | 8 km/h |
| 01:00 | overcast | 10 °C | 0.0 mm | 18 % | 11 km/h |
| 02:00 | overcast | 9 °C | 0.0 mm | 16 % | 15 km/h |
| 03:00 | overcast | 8 °C | 0.0 mm | 18 % | 15 km/h |
| 04:00 | overcast | 8 °C | 0.0 mm | 25 % | 15 km/h |
| 05:00 | overcast | 7 °C | 0.0 mm | 23 % | 14 km/h |
| 06:00 | overcast | 6 °C | 0.0 mm | 25 % | 17 km/h |
| 07:00 | overcast | 6 °C | 0.0 mm | 26 % | 16 km/h |
| 08:00 | overcast | 5 °C | 0.0 mm | 26 % | 17 km/h |
| 09:00 | overcast | 5 °C | 0.0 mm | 27 % | 19 km/h |
| 10:00 | overcast | 5 °C | 0.0 mm | 39 % | 18 km/h |
| 11:00 | overcast | 5 °C | 0.0 mm | 45 % | 18 km/h |
| 12:00 | overcast | 5 °C | 0.0 mm | 47 % | 18 km/h |
| 13:00 | light drizzle | 5 °C | 0.4 mm | 53 % | 18 km/h |
| 14:00 | light drizzle | 4 °C | 0.4 mm | 57 % | 18 km/h |
| 15:00 | drizzle | 4 °C | 0.7 mm | 71 % | 18 km/h |
| 16:00 | drizzle | 3 °C | 0.7 mm | 72 % | 19 km/h |
| 17:00 | light drizzle | 3 °C | 0.4 mm | 55 % | 19 km/h |
| 18:00 | drizzle | 2 °C | 0.7 mm | 62 % | 20 km/h |
| 19:00 | drizzle | 2 °C | 0.7 mm | 62 % | 19 km/h |
| 20:00 | drizzle | 2 °C | 0.7 mm | 85 % | 18 km/h |
| 21:00 | light rain | 2 °C | 1.4 mm | 85 % | 17 km/h |
| 22:00 | drizzle | 2 °C | 0.7 mm | 85 % | 18 km/h |
| 23:00 | heavy drizzle | 3 °C | 0.9 mm | 85 % | 18 km/h |
| 00:00 | light drizzle | 4 °C | 1.4 mm | 85 % | 18 km/h |
| 01:00 | light drizzle | 4 °C | 1.5 mm | 85 % | 17 km/h |
| 02:00 | light rain | 5 °C | 1.7 mm | 97 % | 12 km/h |
| 03:00 | light drizzle | 5 °C | 0.3 mm | 97 % | 4 km/h |
| 04:00 | light drizzle | 5 °C | 0.1 mm | 97 % | 7 km/h |
| 05:00 | overcast | 6 °C | 0.0 mm | 97 % | 14 km/h |
| 06:00 | overcast | 8 °C | 0.0 mm | 97 % | 20 km/h |
| 07:00 | light drizzle | 9 °C | 0.1 mm | 97 % | 28 km/h |
Location of L'Islet-sur-Mer
L'Islet-sur-Mer lies at 7 m, 94 m below the average of the 301 places we cover in Quebec (101 m). That makes it the 13th lowest of the 301. The main town, Montréal, lies 306 km to the south-west. The nearest places we cover are St-Jean-Port-Joli (12 km to the north-east), Montmagny (22 km to the south-west), Baie-Saint-Paul (36 km to the north) and La Pocatière (37 km to the north-east). With about 3,803 inhabitants according to GeoNames, L'Islet-sur-Mer is the 222nd largest of the 301 places we cover in Quebec. Of the places of interest on this site, the nearest is Mont-Sainte-Anne (ski resort, 43 km to the west).
Today is 8.2 °C above the November normal (3.8 °C).
Climate of L'Islet-sur-Mer: 1991–2020 normals
In L'Islet-sur-Mer, July is typically the warmest month (up to 23.1 °C on average), while January is the coldest at -13.2 °C. October sees the most rain, with around 139 mm.
By season (average highs, 1991–2020 normals): winter -4.5 °C and 252 mm of rain, spring 7.4 °C and 306 mm, summer 22.0 °C and 321 mm, autumn 10.9 °C and 364 mm. The wettest season is autumn (29 % of the annual total), the driest winter (20 %).
| Max T (°C) | Min T (°C) | Rainfall (mm) | Rainy days | |
|---|---|---|---|---|
| January | -6.1 | -13.2 | 81 | 11 |
| February | -4.9 | -12.0 | 68 | 10 |
| March | 0.2 | -7.1 | 84 | 11 |
| April | 6.7 | -0.9 | 111 | 12 |
| May | 15.4 | 6.8 | 111 | 13 |
| June | 20.6 | 12.7 | 120 | 13 |
| July | 23.1 | 15.9 | 100 | 13 |
| August | 22.3 | 15.4 | 100 | 12 |
| September | 18.1 | 11.3 | 117 | 12 |
| October | 10.7 | 5.0 | 139 | 13 |
| November | 3.8 | -1.3 | 108 | 12 |
| December | -2.5 | -8.7 | 103 | 12 |
Compared with Montréal, the main town 306 km to the south-west, highs in the warmest month are 1.6 °C lower here, and the year brings 146 mm more precipitation. In 6 months the average low falls below 0 °C (January, February, March, April, November and December); in 3 months the average high exceeds 20 °C (June, July and August).
Nearby places with normals of their own (from another station or reanalysis grid cell) compare as follows: Montmagny (22 km to the south-west): summers 0.9 °C warmer and 108 mm drier a year; Baie-Saint-Paul (36 km to the north): summers 0.6 °C warmer and 39 mm drier a year; La Pocatière (37 km to the north-east): summers 0.8 °C warmer and 230 mm drier a year. Among the 301 places we cover in Quebec whose normals come from the ERA5 reanalysis, L'Islet-sur-Mer ranks 253rd for summer warmth and 31st for annual precipitation. The warmest summers are in Le Sud-Ouest, Brossard and 2 other places and the coolest in Puvirnituq; the wettest year is in Saint-Raymond (Quebec, 142 m) and the driest in Puvirnituq.
What is the warmest month in L'Islet-sur-Mer?
The warmest month in L'Islet-sur-Mer is typically July, averaging 23.1 °C (1991–2020 normal). The coldest is January, at -13.2 °C.
How many rainy days does L'Islet-sur-Mer get per year?
L'Islet-sur-Mer sees about 145 rainy days a year, adding up to roughly 1243 mm of rainfall (1991–2020 normals).
How big is the gap between summer and winter in L'Islet-sur-Mer?
Between July and January, the temperature gap in L'Islet-sur-Mer runs to about 36.3 °C, based on the 1991–2020 normals.