Whale and dolphin watching in Sri Lanka: which coast, which month
The season moves between coasts. The south (Galle and Mirissa) usually runs November to April and the east (Trincomalee) May to October, while Kalpitiya in the west is known for spinner dolphins from about October to March.
National regulations set how close boats may go, and swimming is covered in our ethical safari code. Sightings are a seasonal chance, never a sure thing.
- Navy cruise seasons
Sri Lanka Navy cruises run from Galle Nov–Apr and Trincomalee May–Oct
Navy whale-watching cruises (Galle, Trincomalee): Paused For ship maintenance, per the Navy site. (Confirmed · last checked 23 Oct 2026)
Park statusSource: Sri Lanka Navy · Last checked: 23 Oct 2026
- Blue whales, south
About Dec–Mar off Mirissa(Reported · last checked 23 Oct 2026)
Source: IWC Whale Watching Handbook · Last checked: 23 Oct 2026
- Blue whales, east
About Mar–Jul off Trincomalee(Reported · last checked 23 Oct 2026)
Source: IWC Whale Watching Handbook · Last checked: 23 Oct 2026
- Spinner dolphins, west
Kalpitiya, about Oct–Mar(Reported · last checked 23 Oct 2026)
Source: IWC Whale Watching Handbook · Last checked: 23 Oct 2026
- The law
Sea Mammals (Observation, Regulation and Control) Regulations No. 1 of 2012: DWC-licensed vessels with a DWC-trained registered guide; never closer than 100 m to whales or 50 m to other marine mammals
Source: Gazette 1774/27; IWC Whale Watching Handbook · Last checked: 23 Oct 2026
- Operator guideline
SLTDA: 300 m caution zone with no more than 3 vessels, 100 m no-approach zone, under 6 knots
Source: SLTDA whale and dolphin watching guideline · Last checked: 23 Oct 2026
Where and when can you see whales and dolphins?
The Navy seasons set the frame for each coast, and the IWC handbook gives the species windows within them.
Mirissa or Trincomalee: which coast should you choose?
It comes down to the month you travel. Neither coast is better; each has its own season.
What will you see?
Blue whales are the main target. Bryde's whales and sperm whales sometimes turn up on blue-whale trips, and the IWC notes sperm-whale aggregations around March off Kalpitiya and Trincomalee.(Reported · last checked 23 Oct 2026) Off Kalpitiya, spinner dolphins are the draw.
How do you pick a responsible boat?
Ask whether the vessel is DWC-licensed and carries a DWC-registered guide, and whether they will hold 100 m from whales and 50 m from dolphins, avoid chasing or cutting across animals, and slow down.
Both the 2012 regulations and the SLTDA guideline apply. See the marine section of our ethical safari code.
How do you photograph whales responsibly?
Bring a long lens, stay seated and accept the distance. No drones; see the drone rules.
Questions
When is whale season in Sri Lanka?
Navy seasons run November to April in the south and May to October in the east. The IWC handbook gives the windows for each species.
Are the Navy whale cruises running?
This is the latest we found. Check again before you book.
Navy whale-watching cruises (Galle, Trincomalee): Paused · For ship maintenance, per the Navy site. (Confirmed · last checked 23 Oct 2026)
Kalpitiya or Mirissa for dolphins?
Kalpitiya, for spinner dolphins, roughly October to March.
Can I see sperm whales in Sri Lanka?
Sometimes, as an opportunistic sighting. The IWC handbook notes aggregations around March off Kalpitiya and Trincomalee.
Related
Sources
Reviewed by Lux Ceylon · last checked 23 Oct 2026 · Sources ↓