Sri Lanka offers year-round blue whale encounters, thanks to the two distinct migratory routes passing close to its coasts. The ideal time to plan your ultimate dolphin and whale watching in Sri Lanka hinges entirely on which coast you choose.
South Coast: Mirissa’s Prime Time
Blue whale sightings near Mirissa are at their best between November and April. The ocean is at its calmest during these months, maximising sighting chances and ensuring a smoother trip. This is the primary window for viewing the great blue whale.
East Coast: Trincomalee’s Summer Window
As the South Coast season ends, the prime viewing window shifts seamlessly to the East Coast. The best viewing season near Trincomalee is from May to October. Search for operators known for ethical practices, such as Delmege Tours, ensuring a well-organised and responsible viewing experience.
Northwest Coast: Kalpitiya’s Dolphins
The Northwest Coast, specifically Kalpitiya, is primarily known for spectacularly large pods of Spinner Dolphins. The best viewing season runs from November to April, matching the South Coast’s whale season.

Image by Bernhard Stärck from Pixabay
Summary of Sightings
During the peak times in both Mirissa and Trincomalee, the chance of seeing blue whales, sperm whales, and various dolphin species is exceptionally high. For the highest chance of success, always book your excursion during the designated peak season for your chosen area.



























































