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Lac-Sébastien, Quebec Weather

Lac-Sébastien, Quebec — live current conditions, hourly and 7-day forecasts, ECCC alerts, aviation weather, radar and satellite imagery, marine and fishing conditions with a solunar forecast, soil and crop conditions for Lac-Sébastien in Saint-David-de-Falardeau; Le Fjord-du-Saguenay.

🌡️ Current Conditions
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24-Hour Forecast
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Current Conditions Detail
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7-Day Forecast
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ECCC Extended Forecast
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🌊 Marine & Fishing

Marine forecast and fishing conditions near Lac-Sébastien.

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🎣 Best times to fish today (solunar)
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✈️ Aviation Weather

Flight conditions near Lac-Sébastien. Data source: locating…

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🚜 Agricultural Weather

Soil conditions, frost risk and crop weather for Lac-Sébastien.

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About Lac-Sébastien, Quebec

Lac-Sébastien is a hamlet in Saint-David-de-Falardeau; Le Fjord-du-Saguenay, Quebec, Canada. It is classified as a village / hamlet. Lac-Sébastien is located at 48.6433°N, 71.1267°W. It observes Eastern Time (UTC−5 / −4). Postal code area: G7P.

Lac-Sébastien rests within the rugged embrace of the Le Grand Coteau, its waters held steady by the surrounding terrain of Saint-David-de-Falardeau. It lies 24.4 km north of Saguenay, QC (from Saguenay, QC: bearing 349°T), and is situated 3.1 km north-north-west of Saint-David-de-Falardeau. The air here carries a sharp, clean clarity that deepens as the afternoon light settles against the trees, turning the surface of the lake into a mirror for the sky. Just a short reach away, Premier lac à Laurent sits in quiet companionship, while the presence of the Rivière Shipshaw provides a constant, low-frequency hum to the landscape. Further afield, the distant profile of Parc national des Monts-Valin defines the horizon, grounding the view in a vast, ancient geology that makes the day feel both long and profoundly still. Life around Lac-Sébastien draws its character from the northern woods and the historical reliance on the land, where the local economy has long mirrored the shifts in forestry and the seasonal cycles of the region. Those who live here often look toward Les Trois Chutes, a landmark that underscores the movement of water through this high, rocky country. Traditions are kept in the quiet persistence of the work done in the woods and the small, steady habits of daily existence that persist despite the encroaching cold. Even as the modern world changes, the people of Lac-Sébastien maintain a connection to the rhythms of the seasons, finding a particular beauty in the way the frost gathers on the edge of the lake before the winter nights fully descend.

Lac-Sébastien déploie ses eaux tranquilles sous une lumière déclinante qui transforme les rives de la Rivière Shipshaw en une ligne d'ombre étirée sur le roc. À proximité du Grand Coteau, le terrain s'incline avec une rudesse familière, rappelant aux résidents la rigueur du climat boréal qui façonne les gestes quotidiens des travailleurs de la forêt et des familles établies sur ces terres depuis des générations. Non loin, le Premier lac à Laurent semble retenir le silence des bois, tandis qu'à une distance plus marquée, le Parc national des Monts-Valin impose sa masse sombre sur l'horizon, veillant sur les terres sauvages qui s'étendent jusqu'aux Trois Chutes. Lac-Sébastien conserve cette identité particulière, faite de la patience des hommes qui connaissent chaque repli de ce relief accidenté et la force des courants qui animent encore l'économie locale. L'air y possède une netteté tranchante, une fraîcheur qui imprègne les écorces et les habitations, rendant chaque crépuscule singulièrement immobile. Ici, la vie s'écoule avec la lenteur des eaux du nord, liant les habitants à cet environnement où la terre et le ciel se rejoignent dans une harmonie sauvage, loin des agitations urbaines, dans le respect profond d'un patrimoine naturel que les saisons ne font qu'accentuer.

📡 Precipitation Radar

Live animated radar for Lac-Sébastien and surroundings — RainViewer.

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🛰️ Satellite Imagery

NOAA GOES-19 GEOCOLOR — Canada / Northern U.S. sector. Auto-refreshes every 10 minutes on page reload. Frames the whole country from Newfoundland to the BC coast, plus adjacent Pacific and Atlantic storm approaches.

NOAA GOES-19 GEOCOLOR — Canada / Northern U.S. sector
🎬 Animated loop 🔍 Higher resolution (1125×560) 🌡️ Infrared (IR) view 🇨🇦 ECCC Satellite Viewer

Source: NOAA/NESDIS GOES-19 · Public domain · Sector code can (Canada / Northern U.S.) · Auto-updates on page reload

🌙 Astronomy
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LocationLac-Sébastien, Saint-David-de-Falardeau; Le Fjord-du-Saguenay, Quebec
Coordinates48.643333°N, 71.126667°W
TimezoneEastern Time (UTC−5 / −4)
Postal FSAG7P
Area Code263, 354, 367, 418, 438, 450, 514, 579, 581, 819, 873
Page generatedJuly 2026
Weather dataOpen-Meteo (open-source), Environment and Climate Change Canada

About This Lac-Sébastien, Quebec Weather Page

This page provides live weather conditions and forecasts for Lac-Sébastien, Quebec, including current conditions, a 24-hour hourly forecast, 7-day outlook, ECCC extended text forecast, real-time aviation weather (live METAR and TAF reports from the nearest reporting airport, with a modelled estimate shown when no station is in range), precipitation radar and NOAA GOES satellite imagery. Additional sections may include marine and fishing conditions with a solunar forecast for coastal localities, and soil temperature, crop weather and live Water Survey of Canada river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.

Location data for Lac-Sébastien includes coordinates 48.643333°N, 71.126667°W, situated in Saint-David-de-Falardeau; Le Fjord-du-Saguenay. Postal FSA: G7P. Telephone area code: 263, 354, 367, 418, 438, 450, 514, 579, 581, 819, 873. Timezone: Eastern Time (UTC−5 / −4).

Weather data is sourced from Environment and Climate Change Canada (ECCC) and the open-source Open-Meteo API. Aviation data is sourced from aviationweather.gov, with a modelled estimate used where no nearby reporting station is available. River and stream data is sourced from Water Survey of Canada (WSC) via the ECCC GeoMet realtime hydrometric feed. Marine and solunar data are modelled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-19 and is public domain.