Humpback Whales in Boa vista - Cabo Verde

10 Fascinating Facts You Need to Know

Cabo Verde is one of the most magical places in the world to witness humpback whales in their natural habitat. Every year, these incredible giants migrate across thousands of kilometers to the warm Atlantic waters around the islands to breed, give birth, and nurture their young.

When to see humpback whales in Cabo Verde?
The best time to see humpback whales in Boa Vista – Cabo Verde is between February and May, with peak sightings typically in March and early April.
During this period, the waters around the islands become one of the most important whale breeding areas in the North Atlantic.

If you’re planning a whale watching tour or simply want to learn more, here are the most interesting facts about humpback whales in Cabo Verde.

1. Cabo Verde is a whale nursery

Cabo Verde is not just a migration stop—it is a major breeding and calving ground. Female humpback whales travel here to give birth in warm, shallow waters that offer protection from predators. This makes whale watching in Cabo Verde especially special, as sightings of mothers and calves are very common.

2. One of the longest migrations on Earth

Humpback whales travel up to 8,000 km or more each year between cold feeding grounds (such as Iceland, Norway, and North America) and tropical breeding areas like Cabo Verde. This is one of the longest migrations of any mammal on the planet.

3. Massive ocean giants

The humpback whale (Humpback whale) is truly enormous:

  • Length: up to 16 meters
  • Weight: up to 40 tons

Despite their size, they are known for their graceful movements and acrobatic behavior.

4. Baby whales stay close to mom

Newborn calves are about 4–5 meters long at birth and rely completely on their mothers for milk and protection.
In Cabo Verde, it is common to see calves swimming closely beside their mothers, learning survival skills before their long journey north.

5. The famous whale songs

Male humpback whales are known for their complex and haunting songs, which can last up to 30 minutes and repeat for hours.
Scientists believe these songs are used for communication and attracting mates during the breeding season.

6. Breaching: the ultimate ocean show

One of the most spectacular behaviors you can witness is breaching, where whales launch their entire bodies out of the water and crash back down with a huge splash. Other behaviors include:

  • Tail slapping
  • Fin waving
  • Spy hopping (poking their head above water)

These displays are a highlight for whale watching tours in Cabo Verde.

7. They don’t eat much here

While in Cabo Verde, humpback whales mostly fast. They rely on fat reserves built up during feeding season in colder waters.
This energy is used for migration, breeding, and caring for calves.

8. What they eat elsewhere

Outside breeding season, humpback whales feed mainly on:

  • Krill
  • Small fish (like herring and sardines)

They often use advanced hunting techniques such as bubble-net feeding, where they trap fish in circular bubbles.

9. From endangered to recovering

Humpback whales were heavily hunted during commercial whaling, bringing populations close to collapse.
Thanks to international protection, they are now recovering, but still face threats such as:

  • Ship strikes
  • Fishing nets
  • Noise pollution

10. Cabo Verde is one of the best whale watching destinations

Because of its unique geography and breeding activity, Cabo Verde is considered one of the best places in the world to observe humpback whales in the wild.
Unlike colder regions, sightings here often include:

  • Mothers with calves
  • Breaching whales close to boats
  • Calm ocean conditions for clear viewing

Final thoughts

Seeing humpback whales in Cabo Verde is more than just a wildlife experience—it’s a powerful connection with nature. Watching these giants breach, sing, and care for their young in the open ocean is something you will never forget.
If you’re visiting the islands between February and May, a whale watching tour is an absolute must.