Booking choice: The Four Winds sail, from $213 per person. Check dates Tour details
Every winter thousands of North Pacific humpback whales come to Hawaii to mate, give birth and nurse their calves. NOAA's Hawaiian Islands Humpback Whale National Marine Sanctuary says more than half of the North Pacific population uses Hawaiian waters each season, and the shallow channels of Maui Nui are where the counts run highest.
Molokini sits right in that water, in the 'Alalakeiki Channel between Maui and Kaho'olawe. That makes a winter snorkel trip a whale trip by default. Not a guaranteed one, though, and not every boat treats it the same way.
The quick answer
Humpbacks are in Maui waters from about November into May, and January to March is the peak. Any Molokini boat can pass whales on the crossing, but only some operators build whale time into the trip, and none of the Molokini snorkel trips in our list guarantees a sighting. Federal law keeps every boat, kayak, swimmer and drone 100 yards from a humpback. Winter brings the coolest water of the year, so rent the $10 wetsuit or bring a rash guard.
When is humpback whale season on Maui in 2026-27?
Roughly November into May, with the best odds from January to March. The first and last whales of a season are hit and miss.
The NOAA sanctuary describes the season as November into May, with the peak from January through March. Operators see the same curve: Pride of Maui runs its whale-sighting guarantee only from January to March and says December and April sightings "vary with migration patterns". Redline Rafting and Four Winds run their whale trips from December to March.
The odd early whale shows up in September or October most years. Don't plan around it. For a trip where whales are close to a sure thing, come between mid January and mid March.
| Month | Whale odds | Our take |
|---|---|---|
| October to November | A few early arrivals | A lucky bonus |
| December | Building fast | Good, no guarantees anywhere |
| January to March | Peak season | The best months for whales |
| April | Thinning out | Mothers and calves linger |
| May to September | Practically none | Turtles and reef fish only |
Will I see whales on a Molokini snorkel trip?
In January to March, very likely somewhere on the crossing. Whales are wild and no Molokini snorkel trip in our list promises one.
The numbers favor Maui. During the volunteer count on 28 February 2026, observers logged 847 whales from Maui's shores, about 44% of the 1,935 counted statewide, according to Maui Now. The busiest 15 minutes of that count came between 9:30 and 9:45 a.m., which is exactly when most morning boats are crossing to Molokini or sitting on the mooring.
Guests see it from the deck. A Four Winds reviewer in March 2026 wrote: "We got to watch a whale swim right by the window." That window is the glass-bottom viewing room. An Ali'i Nui guest in January 2026 called it "The bonus whale watching". Our advice: sit on the side of the boat facing Kaho'olawe on the way out, and keep looking for spouts, not tails.

Which Molokini boats look for whales on the way?
Four Winds sells a whale watch and snorkel combo from December to March. Ali'i Nui, Calypso and Malolo watch whales when they appear. Pride of Maui's guarantee covers its separate whale trip, not the Molokini run.
The morning Four Winds trip is the one built for both: from December to March it "dedicates time to and from your snorkel destination so that you can search for whales". Book the Four Winds Molokini tour in those months and you get the whale time as part of the same five-hour trip.
The Ali'i Nui sail tells guests to "look for sea turtles in the summer and whales in the winter", and a quiet sailing catamaran is the nicest platform for it. Malolo's listing for its afternoon run is blunt: "Whale sightings not guaranteed, but most likely December through April." On the big boats like the Calypso and Pride of Maui, whales are a bonus the captain points out, not a scheduled stop.
The one real guarantee in this lineup belongs to Pride of Maui's dedicated 2 p.m. whale watch: no whale from January to March gets you a free return pass. It does not apply to the Molokini snorkel trip. The small rafts from Kihei, Redline and Makena Coast Charters, are fast and low to the water. Great for a close-feeling look, short on time to linger.
| Boat | Whale time on the Molokini trip | Guarantee |
|---|---|---|
| Four Winds II | Built in, December to March | No |
| Ali'i Nui (sail) | Looks for whales in winter | No |
| Calypso, Malolo | If whales show up on the way | No |
| Pride of Maui | If whales show up on the way | Only on its separate whale watch, January to March |
| Redline, Makena rafts | Short crossing, brief looks | No |

The morning trip that sets aside time to search for whales from December to March, with a glass-bottom room for the kids.
Explore the Four Winds sail Tour detailsWhat does the 100-yard whale rule mean on the boat?
Nobody may approach a humpback closer than 100 yards in Hawaii, by boat, kayak, drone or swimming. If a whale comes to you, the boat waits.
NOAA Fisheries puts it plainly: federal law prohibits approaching within 100 yards of a humpback in Hawaii, "including by boat, kayak, drone, when swimming, or by any other vessel or means". That is why a good captain slows down, shifts to neutral and lets the whale set the distance. The close encounters you see in videos are whales choosing to come near.
The rule binds you in the water too. If a humpback surfaces off the back wall while you snorkel, enjoy it from where you are and do not swim toward it. The same goes for drones: you cannot fly one toward a whale either.

What changes on the crossing to Molokini in winter?
Cooler water, more frequent weather swaps and a slightly longer trip when the captain stops for whales. Molokini stays weather permitting all year.
The water is at its coolest from January to March, in the mid-70s Fahrenheit. Most people still snorkel without a wetsuit, but if you chill easily, Calypso and Malolo rent wetsuits for $10, and Makena Coast Charters includes wetsuit tops. A long-sleeve rash guard works too.
Winter weather is less predictable than summer trade winds. Storms and big swells can make Molokini unsafe for snorkeling, and every operator in our list keeps the right to swap sites: Calypso says snorkel locations are "determined daily by our captains based on weather, swell". If your trip snorkels Turtle Town or Coral Gardens instead, nobody refunds the difference. A weather cancellation by the operator gets you a new date or a full refund. Our guide to morning versus afternoon trips explains why the early boat is the safer bet in any season.
The biggest boat on the run, with a glass-bottom room and a slide. Whales are a bonus on the way out.
Check dates for the Calypso Molokini tripHow many whales were counted off Maui last season?
Volunteers counted 694 whales from Maui's shores on 31 January 2026, 847 on 28 February and 141 on a windy 28 March.
Pacific Whale Foundation's Great Whale Count on Maui and NOAA's Sanctuary Ocean Count on the other islands run on the same Saturdays. In 2026 those were the last Saturdays of January, February and March. The statewide January total of 1,954 was 158 lower than in January 2025, Maui Now reported, and the organizers warn the figures can include the same whale seen twice.
The low March figure is mostly weather: count day brought strong winds and whitecaps, and several sites had to cancel, according to the final 2026 report. Read the counts as a snapshot, not a census. They still show what boat crews see every winter: February is the fullest month in the channel.
| Count day (2026) | Whales seen from Maui | Statewide |
|---|---|---|
| 31 January | 694 | 1,954 |
| 28 February | 847 | 1,935 |
| 28 March | 141 | 435 |
Frequently asked questions
When is the best time to see whales on a Molokini trip?
January to March. Whales arrive from about November and leave by April or early May, but the peak months give you the best odds on any morning crossing.
Does any Molokini snorkel trip guarantee whales?
No snorkel trip in our list does. Pride of Maui guarantees whales only on its separate afternoon whale watch from January to March, with a free return pass if none are seen.
How close can a snorkel boat get to a humpback whale?
100 yards. Federal law forbids approaching closer by boat, kayak, drone or swimming. If a whale comes closer on its own, the boat stays put.
Is the water too cold to snorkel Molokini in winter?
No. It is the coolest time of year, in the mid-70s Fahrenheit, and most people snorkel in a swimsuit. Wetsuits rent for $10 on Calypso and Malolo.
Ready to book
Choose your boat
Free cancellation up to 24 hours before on every option. Prices are from-prices in USD and move with the season.

Four Winds Molokini Sail & Snorkel
Families and nervous swimmers: sea boards, vests and a glass bottom

Molokini Deluxe Snorkel & Sail on the Ali'i Nui
- Molokini plus a second sea turtle site
- Breakfast, lunch, cocktails and zero-proof drinks
- Snorkel gear, bow hammocks, two restrooms

Molokini & Turtle Town on the Calypso
- Molokini, then a second stop chosen by the captain
- Breakfast pastries and fruit, deli lunch
- Snorkel gear and flotation





