Whale watching in Ketchikan is limited to the summer months, aligned with the Alaska cruise season. While whales are present from May to September, your chance of seeing specific species (like Orcas) varies significantly throughout the season.
For the highest density of Humpback whales and the most active feeding behavior, plan your visit in July or August. This is when the salmon runs are at their peak, drawing predator and prey into the narrow channels.
Probability: 70% Humpback / 30% Orca
Whales are beginning to arrive from their winter breeding grounds. Read the full May Guide →
Probability: 85% Humpback / 50% Orca
Activity picks up as daylight hours reach their maximum. Read the full June Guide →
Probability: 99% Humpback / 60% Orca
Warmest weather and maximum whale density. Read the full July Guide →
Probability: 95% Humpback / 50% Orca
Sightings remain excellent despite the rain. Read the full August Guide →
Probability: 80% Humpback / 40% Orca
Whales begin their migration south. Still a great time for sightings. Read the full September Guide →
In Ketchikan, the "best time of day" for whales is less about the sun and more about the tide and boat traffic. Early morning tours (before 9:00 AM) often experience the calmest water and have the best chance of hearing whale songs through the hull.