How fast do whales swim per hour?

“They are fast, strong swimmers, capable of reaching 30 mph (48.3 km/hr) when alarmed, but they usually cruise along at about 12 mph (19.3 km/hr).”

How fast can humpback whales swim?

How fast can Humpback Whales swim? When travelling, Humpback Whales move at about 5 to 15 km per hour. During feeding, they’ll slow to 2 to 5.5 km/h. When they want to really move they can speed up to about 25 km/h.