Whale Watching in Dana Point in December: A Local’s Guide to the Start of Gray Whale Season

There is a morning every December when someone on the bow yells before the captain does. It is usually a first-timer, they are usually pointing at the wrong patch of water, and about four seconds later a heart-shaped blow goes up right where they were looking. That is a gray whale, and that is December in Dana Point.

December is the month the whole season turns over. The humpbacks that owned October and November are still here. The dolphins are here, in the numbers that make people forget they came out for whales at all. And underneath all of it, the gray whale migration is picking up speed, whale by whale, until by the last week of the month it is the main event. Our November guide ended with the first grays trickling past. December is where the trickle becomes a highway.

Here is what actually happens off Dana Point Harbor this month, from the people who run these boats every day of it.

What Whales Can You See in Dana Point in December?

December is a genuinely stacked month because two seasons overlap. You get the tail end of the fall lineup and the front end of the winter one on the same two-hour ticket.

• Gray whales. The reason December matters. Southbound animals headed for Baja, passing close to shore, often within a mile or two of the beach.
• Humpback whales. Still around and still the most likely species to breach on you. Some winters a few of them hang around all season.
• Fin whales. The second-largest animal on Earth, and one of the most reliable whales off this coast in any month.
• Minke whales. Small, shy, here year-round. Our captains find them more often than most people expect.
• Dolphins, every trip. Common dolphin in the thousands, plus bottlenose and Risso’s. December megapods are some of the biggest of the year.

The one species that has left is the blue whale. The giants that feed here through July and August are long gone by December. If a blue whale is on your list, come back in summer.

When Do the Gray Whales Arrive in Dana Point?

The honest answer is that it moves a little every year, and we track it closely enough to tell you exactly how much.

Last season, our first southbound gray whale of the year showed up on December 11, close to shore off Ritz Point. It surfaced a few times, turned out, and disappeared. Our second one came ten days later on December 21, a skinny adult also headed south. By the first week of January, we were seeing them on nearly every trip, and by mid-January the boats were coming back with counts of five, seven, and nine grays in a single day.

That is the pattern almost every year. Early December is a hunt. Late December is a rhythm. The migration does not flip on like a switch, it builds, which is why the last two weeks of the month are the sweet spot if you want gray whales specifically.

What makes this coast special is geography. The gray whales are running a route between the Arctic and the lagoons of Baja California, and Dana Point sits on a stretch where deep water comes in close. They do not have to detour around us. They come right past the Headlands. That is a big part of why Dana Point carries the Dolphin and Whale Watching Capital of the World® title, and why we can find them on a two-hour trip instead of a half-day run offshore.

If you want the full year in one place, our month-by-month whale watching guide lays out what shows up when. For the deep dive on this species specifically, we wrote a complete gray whale guide.

How Far Do Gray Whales Actually Travel?

This is the number that stops conversations on the boat. According to NOAA Fisheries, gray whales cover about 10,000 miles round-trip on their annual migration, and in some cases upwards of 14,000. Roughly half of that is the southbound leg you are watching in December.

They are not stopping to feed on the way down. They fed all summer in the Arctic, and they are burning through that reserve to get to the shallow, warm, salty lagoons of Baja California where the calves are born. NOAA puts the birthing window at early January to mid-February, which means the animals passing Dana Point in December are pregnant females on a deadline and everyone else trying to keep up.

Adults run 42 to 49 feet and weigh in around 90,000 pounds. Up close, the thing people always comment on is the skin. Gray whales carry barnacles and whale lice, concentrated on the head and tail, which is why they look mottled and crusted instead of sleek. Every one of those patterns is different, which is how researchers tell individuals apart.

How Many Gray Whales Are Left?

More than there were, and the recent story is worth knowing before you come out.

Gray whales in the eastern North Pacific were listed as endangered, recovered, and were delisted under the Endangered Species Act in 1994. That is one of the genuine conservation wins in marine mammal history. But the population took a hard hit during an Unusual Mortality Event, and NOAA’s count for the 2024/2025 season came in around 12,890 animals, one of the lowest since surveys began in the late 1960s.

The most recent estimate is better. NOAA Fisheries now puts the population at roughly 17,750 whales, with a range of 15,930 to 20,530. Researchers have been careful to note that a jump that size likely exceeds what the population could actually reproduce in a year, so some of it is counting and survey variation rather than pure growth. And calf production is still a concern: NOAA’s 2025 estimate was 85 calves, the lowest in the entire time series.

We tell guests this because it changes how the trip feels. You are not looking at a sure thing. You are looking at a population that has come back from commercial whaling once already and is working through another rough stretch. Every fluke you see off the Headlands in December counts for something.

Are the Humpbacks and Dolphins Still Around in December?

Very much so, and this is the part people underestimate about a December trip.

Humpbacks are the showmen. When one decides to put on a display, it throws its flukes straight up before a deep dive, slaps those long pectoral fins on the surface, and occasionally launches its entire body clear of the water. December humpbacks off this coast are less predictable than they are in fall, but when they show up they steal the trip. If you want to tell them apart from the grays you came for, our gray whale versus humpback breakdown is the cheat sheet.

The dolphins, though, are the reason nobody comes back from a December trip empty. Common dolphin megapods off Dana Point can run into the thousands, and when a pod that size decides to run with the boat, the water goes white for a hundred yards in every direction. Our guide to dolphin megapods covers when and why they get that big.

This is also why our Whale Check guarantee works the way it does. If you do not see a whale or a good showing of dolphins on your trip, you get a return ticket. In December, we hand out very few of them.

What Is a December Whale Watch Actually Like?

Cold, is the short version, and not in the way people expect.

Onshore in Dana Point, December runs in the low-to-mid 60s and looks like a nice day. The second you clear the jetty and the boat gets moving, the wind chill takes about ten degrees off that, and if it is overcast you will feel every bit of it. We watch people board in a T-shirt in the parking lot and spend the whole trip inside the cabin.

Dress for it and you get the best whale watching of the year. Layers, a windbreaker on top, closed shoes, and a hat. Our season-by-season guide to what to wear has the full breakdown. Winter also brings bigger swell than summer does, so if you are prone to motion sickness, read our captains’ seasickness prevention tips before you come down, not after.

The upside of a December weekday is space. The summer crowds are gone, the boats are not packed, and you can move around the rail to whichever side the whale surfaces on. Morning trips tend to have the calmest water, though grays surface all day and we find them on the afternoon runs just as often.

Is December a Good Time to Go Whale Watching in Dana Point?

It is one of the best months of the year, and it is the most underbooked good month we have.

Here is the case. You get gray whales, which most of the world has to travel to see and which pass our Headlands close enough to photograph from a two-hour trip. You get humpbacks and fin whales still in the neighborhood. You get the biggest dolphin pods of the year. You get open decks, short lines, and captains who have been finding whales on this stretch of coast for over fifty years. And you get to watch the migration in its opening act, before the crowds show up for the northbound run in spring.

If you are planning ahead, the northbound half of this migration is a different trip entirely, with mothers and calves hugging the shore. Our post on cow and calf season covers what that looks like, and the great turnaround explains the strange window when southbound and northbound whales pass each other off the same beach.

Come see it. Our whale watching trips run daily out of Dana Point Harbor, all ages, two hours on the water. If you are coming from further south, we also run whale watching out of Oceanside. Book a December morning, dress warmer than you think you need to, and get out there before the first blow goes up without you.