Anticosti
Nature Reserve Large Saint Lawrence island with forests and dramatic cliffs
Anticosti Island in Québec sits in the Gulf of St. Lawrence, known for long coastal cliffs, river networks, abundant white‑tailed deer and Atlantic salmon runs; anglers, birdwatchers and road‑trippers explore its sparse settlements and rugged shoreline.
Anticosti is a large island in the Gulf of St. Lawrence belonging to the province of Quebec, Canada, notable for its remote, largely undeveloped landscape and rich natural history. The island covers roughly 7,900 square kilometres and stretches over 200 kilometres east to west, making it one of Quebec’s largest islands.
The landscape is dominated by boreal forest, river valleys and limestone coastal cliffs, with numerous salmon rivers and extensive wildlife populations including a high-density introduced population of white-tailed deer. The island’s geology contains sedimentary sequences that preserve fossils and a varied coastal morphology.
Human settlement is minimal and concentrated in the village of Port-Menier on the western shore, which functions as the administrative and logistical base for visitors. Access is typically by scheduled ferry or small aircraft, and facilities are limited outside the main settlement.
Anticosti lies in the Gulf of St. Lawrence off Quebec’s Côte-Nord region and is administered by the province of Quebec; the island’s isolation and scale are defining features for visitors.
- Remoteness and access: The island is large and sparsely populated, with much of its appeal tied to remote wilderness, river fishing and coastal cliffs; transport links are seasonal and limited.
- Main settlement and transport: Port-Menier is the principal service hub with air and ferry connections that are subject to weather and seasonal schedules.
What to See #
- Port-Menier: Port-Menier, the main settlement on the island located on the western coast, which serves as the island's service centre and ferry terminus.
Tips for Visiting Anticosti #
- Base yourself in Port-Menier, the island's main settlement and travel hub - most passenger ferries and flights arrive there and it's where supplies, guides and vehicle hire are centred.
- Plan for summer months (late June-August) when the ferry/flight schedules and visitor services operate most reliably, and road access around the island is at its easiest.
- Explore beyond the shoreline: the island's interior requires long dirt-road drives and is best visited with a prepared vehicle (extra fuel, spares) and an overnight plan; many day visitors miss the interior landscapes and wildlife because they stay only in Port-Menier.
Best Time to Visit Anticosti #
Visit in summer (June-August) for the clearest access, milder weather and best opportunities for outdoor activities.
Weather & Climate near Anticosti #
Anticosti's climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with mild summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -17°C to 20°C. Moderate rainfall (972 mm/year).
January
January is the coldest month with highs of -8°C and lows of -17°C. Moderate rainfall (79 mm) and mostly overcast skies.
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February
February is freezing with highs of -8°C and lows of -17°C. Moderate rainfall (61 mm) and mostly overcast skies.
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March
March is freezing with highs of -3°C and lows of -11°C. Moderate rainfall (64 mm) and partly cloudy skies.
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April
April is freezing with highs of 3°C and lows of -4°C. Moderate rainfall (64 mm) and partly cloudy skies.
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May
May is cold with highs of 9°C and lows of 1°C. Moderate rainfall (74 mm) and partly cloudy skies.
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June
June is cool with highs of 16°C and lows of 7°C. Regular rainfall (85 mm) and partly cloudy skies.
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July
July is cool with highs of 20°C and lows of 11°C. Regular rainfall (90 mm) and partly cloudy skies.
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August
August is cool with highs of 19°C and lows of 11°C. Regular rainfall (92 mm) and partly cloudy skies.
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September
September is cool with highs of 14°C and lows of 6°C. Regular rainfall (84 mm) and partly cloudy skies.
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October
October is cold with highs of 8°C and lows of 0°C. The wettest month with heavy rain (102 mm) and partly cloudy skies.
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November
November is freezing with highs of 2°C and lows of -5°C. Regular rainfall (92 mm) and mostly overcast skies.
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December
December is freezing with highs of -5°C and lows of -12°C. Regular rainfall (85 mm) and mostly overcast skies.