Manx Whale and Dolphin Watch received reports before 8am
Manx Whale and Dolphin Watch says it's received two reported sightings of minke whales, one from Perwick and the other off Chicken Rock, and one of a basking shark out west already today.
It says the sea is 'teeming with plankton and with the temperatures rising and calm seas we could be in for some treats'.
The charity is running a public sea watch at the Sound from 11am-1pm tomorrow.