For most visitors, the best time to go to Tadoussac is between June and September, when the weather is pleasant and wildlife viewing is at its peak.The summer months, particularly July and August, offer the warmest temperatures, making it ideal for boat excursions and exploring the Fjord-du-Saguenay National Park. During this period, you'll have the best chance to spot a wide variety of whales, including humpbacks and belugas, which are a major draw for the region. The village itself is bustling with activity, with shops, restaurants, and tour operators fully operational.Early June and September are also excellent times to visit, especially for travellers who prefer a quieter experience with fewer crowds. The weather remains comfortable for outdoor activities, and whale watching is still very productive. In September, the autumn colours begin to emerge, adding another layer of beauty to the landscape, particularly along the Saguenay Fjord.