Tadoussac, Canada offers 1 beach perfect for sunbathing, surfing, swimming, and more. Tadoussac is known for its whale watching opportunities in the Saguenay–St. Lawrence Marine Park. The best time to visit Tadoussac, Canada, is from June to September, with average air temperatures ranging from 15°C to 20°C (59°F to 68°F) and water temperatures around 8°C to 12°C (46°F to 54°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!