Monterey Bay Whale Watch
List of Marine Mammal Sightings
in the Monterey Bay Region
April 2025
Note — This list includes reported sightings from Monterey Bay Whale Watch trips. Unusual sightings of other marine animals such as Leatherback Sea Turtles and Basking Sharks are also listed, in addition to unusual seabirds such as Albatross and Brown Boobies. California Sea Lions are mentioned only if numbers or behavior are of interest. Harbor Seals and Southern Sea Otters, which are seen on all whale watching trips, are not included in the list.
These sightings are copyright protected and may not be used without permission from Nancy Black. All rights reserved. Unauthorized use of this information is a violation of federal copyright law, and is subject to prosecution to the full extent of the law.
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| Killer Whale identifications by the California Killer Whale Project |
| Date |
# |
Type of Animal(s) |
|
| 4/30 9 a.m. |
20 |
Humpback Whales |
|
20 |
Risso’s Dolphins |
|
| 4/30 8 a.m. |
25 |
Humpback Whales |
| All Day |
8 |
Risso’s Dolphins |
|
| 4/29 1:30 p.m. |
20 |
Humpback Whales |
|
| 4/29 9 a.m. |
49 |
Humpback Whales |
|
30 |
Risso’s Dolphins |
|
| 4/29 8 a.m. |
25 |
Humpback Whales |
| All Day |
100 |
Risso’s Dolphins |
|
| 4/28 9 a.m. |
21 |
Humpback Whales |
|
| 4/28 8 a.m. |
45 |
Humpback Whales |
| All Day |
200 |
Risso’s Dolphins |
|
| 4/27 10 a.m. |
15 |
Humpback Whales |
|
| 4/27 9 a.m. |
15 |
Humpback Whales |
|
4/27 8 a.m.
All Day |
42 |
Humpback Whales |
|
| 4/26 1:30 p.m. |
13 |
Humpback Whales |
|
| 4/26 10 a.m. |
12 |
Humpback Whales |
|
| 4/26 9 a.m. |
35 |
Humpback Whales |
|
10 |
Risso’s Dolphins |
|
1 |
Harbor Porpoise |
|
| 4/26 8 a.m. |
51 |
Humpback Whales |
| All Day |
50 |
Pacific White-sided Dolphins |
|
300 |
Risso’s Dolphins |
|
| 4/25 1:30 p.m. |
10 |
Humpback Whales |
|
| 4/25 10 a.m. |
12 |
Humpback Whales |
|
| 4/25 9 a.m. |
6 |
Humpback Whales |
|
6 |
Risso’s Dolphins |
|
| 4/25 8 a.m. |
57 |
Humpback Whales |
| All Day |
50 |
Risso’s Dolphins |
|
| 4/24 9 a.m. |
12 |
Humpback Whales |
|
200 |
Pacific White-sided Dolphins |
|
10 |
Risso’s Dolphins |
|
| 4/24 8 a.m. |
50 |
Humpback Whales |
| All Day |
10 |
Risso’s Dolphins |
|
| 4/23 9 a.m. |
20 |
Humpback Whales |
|
200 |
Pacific White-sided Dolphins |
|
50 |
Risso’s Dolphins |
|
| 4/23 8 a.m. |
28 |
Humpback Whales |
| All Day |
100 |
Pacific White-sided Dolphins |
|
| 4/22 1:30 p.m. |
12 |
Humpback Whales |
|
4 |
Killer Whales (Orcas – CA39As) |
|
| 4/22 9 a.m. |
6 |
Humpback Whales |
|
4 |
Killer Whales (Orcas – CA39As) |
|
| 4/22 8 a.m. |
45 |
Humpback Whales |
| All Day |
4 |
Killer Whales (Orcas – CA39As) |
|
10 |
Risso’s Dolphins |
|
| 4/21 1:30 p.m. |
15 |
Humpback Whales |
|
20 |
Risso’s Dolphins |
|
| 4/21 9 a.m. |
30 |
Humpback Whales |
|
50 |
Pacific White-sided Dolphins |
|
150 |
Risso’s Dolphins |
|
5 |
Black-footed Albatross |
|
| 4/21 8 a.m. |
28 |
Humpback Whales |
| All Day |
2 |
Gray Whales |
|
6 |
Fin Whales |
|
300 |
Pacific White-sided Dolphins |
|
200 |
Risso’s Dolphins |
|
10 |
Northern Right Whale Dolphins |
|
| 4/20 5 p.m. |
29 |
Humpback Whales |
|
| 4/20 1:30 p.m. |
47 |
Humpback Whales (breaching, tail throwing, tail slapping, feeding) |
|
| 4/20 10 a.m. |
42 |
Humpback Whales |
|
| 4/20 9 a.m. |
40 |
Humpback Whales |
|
| 4/20 8 a.m. |
43 |
Humpback Whales |
| All Day |
12 |
Fin Whales |
|
250 |
Risso’s Dolphins |
|
5 |
Harbor Porpoise |
|
| 4/19 5 p.m. |
20 |
Humpback Whales |
|
12 |
Risso’s Dolphins |
|
1 |
Short-tailed Albatross |
|
| 4/19 1:30 p.m. |
45 |
Humpback Whales |
|
30 |
Risso’s Dolphins |
|
| 4/19 10 a.m. |
37 |
Humpback Whales |
|
30 |
Risso’s Dolphins |
|
2 |
Harbor Porpoise |
|
| 4/19 9 a.m. |
43 |
Humpback Whales |
|
30 |
Risso’s Dolphins |
|
5 |
Harbor Porpoise |
|
| 4/19 8 a.m. |
55 |
Humpback Whales |
| All Day |
9 |
Fin Whales |
|
800 |
Risso’s Dolphins |
|
5 |
Harbor Porpoise |
|
| 4/18 9 a.m. |
45 |
Humpback Whales |
|
5 |
Fin Whales |
|
12 |
Risso’s Dolphins |
|
| 4/18 8 a.m. |
33 |
Humpback Whales (breaching, friendly) |
| All Day |
11 |
Killer Whales (Orcas – CA27s) |
|
30 |
Risso’s Dolphins |
|
3 |
Elephant Seals |
|
1 |
Blue Shark |
|
1 |
Mola Mola (Ocean Sunfish) |
|
30 |
Black-footed Albatross |
|
| 4/17 1:30 p.m. |
15 |
Humpback Whales (feeding, breaching, including Aria) |
|
| 4/17 9 a.m. |
12 |
Humpback Whales (breaching, tail throwing) |
|
30 |
Risso’s Dolphins |
|
| 4/16 1:30 p.m. |
27 |
Humpback Whales |
|
| 4/16 9 a.m. |
33 |
Humpback Whales |
|
| 4/15 9 a.m. |
8 |
Humpback Whales |
|
3 |
Fin Whales |
|
150 |
Risso’s Dolphins |
|
65 |
Northern Right Whale Dolphins |
|
1 |
Laysan Albatross |
|
| 4/14 1:30 p.m. |
26 |
Humpback Whales |
|
16 |
Killer Whales (Orcas) |
|
200 |
Risso’s Dolphins |
|
| 4/14 9 a.m. |
21 |
Humpback Whales |
|
9 |
Killer Whales (Orcas) |
|
| 4/13 1:30 p.m. |
25 |
Humpback Whales |
|
| 4/13 9 a.m. |
56 |
Humpback Whales |
|
100 |
Pacific White-sided Dolphins |
|
500 |
Risso’s Dolphins |
|
2 |
Harbor Porpoise |
|
1 |
Short-tailed Albatross |
|
| 4/11 2:30 p.m. |
15 |
Humpback Whales (chin slapping, feeding) |
|
| 4/11 10 a.m. |
21 |
Humpback Whales (tail lobbing, tail throwing) |
|
| 4/10 9 a.m. |
25 |
Humpback Whales (breaching, tail throwing, feeding) |
|
| 4/9 2:30 p.m. |
9 |
Humpback Whales |
|
| 4/9 10 a.m. |
8 |
Humpback Whales (lunge feeding) |
|
| 4/8 9 a.m. |
5 |
Humpback Whales |
|
2 |
Gray Whales |
|
3 |
Fin Whales |
|
75 |
Pacific White-sided Dolphins |
|
100 |
Risso’s Dolphins |
|
75 |
Northern Right Whale Dolphins |
|
| 4/7 1:30 p.m. |
8 |
Humpback Whales |
|
| 4/7 9 a.m. |
18 |
Humpback Whales |
|
5 |
Pacific White-sided Dolphins |
|
100 |
Risso’s Dolphins |
|
| 4/6 1:30 p.m. |
15 |
Humpback Whales |
|
6 |
Harbor Porpoise |
|
| 4/6 9 a.m. |
35 |
Humpback Whales |
|
75 |
Pacific White-sided Dolphins |
|
100 |
Risso’s Dolphins |
|
9 |
Harbor Porpoise |
|
1 |
Salmon Shark |
|
| 4/5 1:30 p.m. |
15 |
Humpback Whales |
|
9 |
Harbor Porpoise |
|
| 4/5 9 a.m. |
25 |
Humpback Whales |
|
50 |
Pacific White-sided Dolphins |
|
50 |
Risso’s Dolphins |
|
9 |
Harbor Porpoise |
|
| 4/4 2:30 p.m. |
15 |
Humpback Whales (chin slapping) |
|
| 4/4 10 a.m. |
21 |
Humpback Whales (tail lobbing, tail throwing) |
|
| 4/3 9 a.m. |
35 |
Humpback Whales |
|
7 |
Harbor Porpoise |
|
|
|
Photos © 2025 Daniel Bianchetta
 Humpback Whale tail throw (April 30, 2025)
 Salmon Shark rubbing against a log (April 30, 2025)
 Shearwater (April 28, 2025)
 Young Humpback Whale breaching (April 27, 2025)
 Brown Pelican (April 27, 2025)
 Humpback Whale named Waterfall with Moss Landing stacks in background (April 26, 2025)
 Humpback Whale and cormorants (April 25, 2025)
 Black-footed Albatross (April 24, 2025)
 Killer Whale (Orca) CA39A hunting (April 22, 2025)
 Leaping California Sea Lion (April 21, 2025)
 Southern Sea Otters in kelp (April 21, 2025)
 Pacific White-sided Dolphin and Northern Right Whale Dolphin (April 21, 2025)
 Pacific White-sided Dolphin (April 21, 2025)
 Humpback Whale tail throw (April 20, 2025)
 Mother and calf Humpback Whales (April 20, 2025)
 Sea Otter eating a Crab (April 19, 2025)
 Humpback Whale Noah photo ID (April 19, 2025)
 Breaching Risso’s Dolphin (April 19, 2025)
 Killer Whales (Orcas – April 18, 2025)
 Humpback Whale pectoral fin (April 17, 2025)
 Humpback Whales pec slap and breach (April 17, 2025)
 Northern Right Whale Dophins (April 15, 2025)
 Killer Whales (Orcas – April 14, 2025)
 Short-tailed Albatross (April 13, 2025)
 Breaching Humpback Whale (April 10, 2025)
 Humpback Whale feeding – note baleen (April 9, 2025)
 Fin Whales (April 8, 2025)
 Risso’s Dolphins (April 7, 2025)
 By-The-Wind Sailor (Vellela Vellela – April 6, 2025)
 Humpback Whale tail slap (April 4, 2025)
 Harbor Porpoise (April 5, 2025)
 Southern Sea Otter (April 6, 2025)
Photos © 2025 Daniel Bianchetta |
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Copyright © 2025 Monterey Bay Whale Watch, LLC. No use of the sightings information is permitted without prior approval.
