Dreaming of turquoise waters, golden sand, and a relaxed island vibe? Then, Maui in September 2025 might be the perfect time to pack your swimsuit and snorkel gear. The water is warm, mornings are calm, and the island shifts into a relaxed, post‑summer rhythm. Crowds thin after Labor Day weekend, and you still get plenty of sunshine. That’s a sweet combo for snorkeling, beach time, and easy exploring!
Below, we break down everything you need to know about Maui in September. You’ll find the best snorkeling spots, things to do, and why September is a good time to visit.
Why Visit Maui in September?
Fewer Crowds
September is what many locals call the “shoulder season.” The big summer rush is over, and holiday travelers haven’t arrived yet. That means beaches, hiking trails, and luaus feel more spacious. You’ll find it easier to snag dinner reservations or book tours without the stress of full capacity.
Better Prices
Hotels, rental cars, and flights usually cost less than during the summer high season. You can find great deals on places to stay in Wailea, Kaanapali, or Kihei. You can often find discounts on tours, too.
Great Ocean Conditions
The calm seas of summer often last into early fall. That means excellent visibility for snorkeling at Molokini Crater, Coral Gardens, and Turtle Town. If you’re wondering, is September a good time to snorkel? The answer is yes—it’s one of the best months to visit for clear water.
Molokini Crater Snorkeling Tour
Two snorkel stops at Molokini Crater and Turtle Town. Includes breakfast, lunch, and snorkel gear. Swim and snorkel with tropical fish and sea turtles!
Maui Weather in September
So, what’s the Maui weather in September really like? Spoiler alert: it’s pretty amazing.
Sunshine and Warm Temperatures
Daytime highs average in the mid to high 80s (°F), while evenings dip into the low 70s. It’s warm enough for beach days without being overly hot or humid. You’ll want reef-safe sunscreen and a hat for daytime exploring.
Ocean Conditions
September usually brings calm, crystal-clear water, especially on Maui’s south and west sides. This is prime time for snorkeling, swimming, and paddleboarding. Surf tends to stay mild in these areas, though the north shore may begin to see swells building as fall moves in.
Light Rain Showers
Maui does see light showers year-round, but September is still considered a drier month. If it does rain, it’s often brief and followed by sunshine—and sometimes a rainbow.
What this Means for Snorkeling
Plan your snorkel adventures early in the morning for calmer water and better visibility. Book our morning tour, get to shore spots at sunrise, and let the wind do its thing later while you’re eating shave ice or napping by the pool.
- Warmest ocean temperatures of the year: No wetsuit required for most swimmers.
- Fewer crowds after Labor Day: Parking is easier at popular coves, and tours often have a little more elbow room.
- Long daylight, but softer sun: You still have long days, yet the late‑summer angle makes shade breaks easier.
- Shoulder‑season deals: You may find better rates on flights or stays compared to mid‑summer or holiday weeks.
Quick note on wildlife: Sea turtles are common, but wildlife sightings are never guaranteed. We follow respectful viewing rules so animals stay safe and you get authentic, responsible encounters.
Best Places to Snorkel in September
Molokini Crater
Molokini is a protected volcanic islet just off Maui’s south shore. It’s a Marine Life Conservation District (MLCD), which helps keep fish life vibrant. Access is by boat only, and mornings here can feel like a giant aquarium.
Why it shines in September: Clear, warm water and typically calmer morning seas. Great for families and first‑time snorkelers when you go with a reputable tour.
Turtle Town (Makena area)
“Turtle Town” is a nickname for a stretch of south Maui coastline where honu (Hawaiian green sea turtles) are often seen. Go early and keep your distance. The reef drops off gently, making it easy for newer snorkelers on a guided tour.
Coral Gardens
Tucked along the Pali, Coral Gardens can be a great alternative when winds build elsewhere. Tour crews choose this spot when conditions suit it best. Expect coral arches, reef fish, and the occasional turtle.
Kapalua Bay & Napili Bay (West Maui)
These postcard‑pretty bays are terrific morning shoreline options. Get there early for parking and calmer water. If the wind or surf looks up, skip it and try again another morning—safety first.
Go with the Pros: Maui Snorkeling Tours (All‑Inclusive)
Let us make it easy. Our crew handles the boat, gear, food, and safety briefings—so you can focus on fun.
Molokini Crater Snorkeling Tour (Morning)
- Daily, 7:00 AM – 12:00 PM
- Two snorkel stops: Molokini Crater and Turtle Town
- Swim with tropical fish and (often) sea turtles
- Breakfast, lunch, and snorkel gear included
Afternoon Snorkeling Tour (Coral Gardens)
- Daily, 1:00 PM – 4:00 PM
- Snorkel Coral Gardens’ colorful reef
- Swim with tropical fish
- Lunch and snorkel gear included
Pro tip: Morning ocean is usually calmer, especially in late summer. If your schedule is flexible, pick the AM trip first. (Afternoons can still be great when conditions line up.)
Other Things to Do in Maui in September
Snorkeling isn’t the only thing to do in September; here are some of our other favorites:
Explore Maui’s Stunning Beaches
With fewer visitors, you might feel like you’ve found your own slice of paradise. Top beaches to check out in September include:
- Kaanapali Beach – Long stretches of golden sand, great for swimming and sunset walks.
- Wailea Beach – Luxury vibes with calm surf, perfect for families.
- Napili Bay – A laid-back cove great for snorkeling right from shore.
Hike in Comfort
Cool mornings and warm afternoons make September an excellent time to hike.
- Iao Valley State Monument – Short, scenic trails with lush greenery and cultural history.
- Waihee Ridge Trail – For sweeping ocean and valley views, this hike is a must.
- Haleakala National Park – Wake up early for sunrise above the clouds, or take a day hike through alien-like volcanic landscapes.
- Drive the Road to Hana – September is a great time to take this scenic journey with fewer cars on the road. You’ll see waterfalls, black sand beaches, and lush rainforest landscapes.
Local Events in September
Maui’s cultural scene adds extra sparkle to your trip.
- Aloha Festivals – Statewide celebrations honoring Hawaiian culture with music, hula, and food. Maui often hosts smaller events connected to the festival.
- Farmers Markets – Sample fresh fruit, Hawaiian honey, and local crafts at markets in Kihei, Lahaina, and Upcountry.
Tips for Visiting Maui in September
Book Activities Early
Even though September is less crowded, tours like Molokini snorkeling trips still fill up. Booking early ensures you get the times and tours you want.
Pack for Warm Days and Cool Nights
Days are hot with warm weather. Bring lightweight clothes, swimsuits, and sandals, but also pack a light jacket or sweater for evenings. If you’re heading up Haleakala, temps can drop into the 40s at sunrise.
Rent a Car
Public transportation is limited, and rideshares aren’t always reliable outside major towns. A rental car makes it easy to explore beaches, waterfalls, and hidden gems.
Bring Reusable Water Bottles
Stay hydrated and skip single-use plastic.
Afternoon Snorkeling Tour
A relaxed outing to Coral Gardens. Ride the 25′ waterslide and swim with tropical fish!
Is September the Best Time to Visit Maui?
Many travelers ask which months to visit Maui are best. While Maui is beautiful year-round, September is a sweet spot. You’ll enjoy summer-like weather without the summer crowds, plus lower prices on accommodations and flights. It’s a win-win for travelers looking to stretch their budget without sacrificing the magic of Hawaii.
Final Thoughts: Maui in September 2025
Whether you’re snorkeling Molokini, hiking Haleakala, driving the Road to Hana, or sipping a Mai Tai at sunset, Maui in September offers a perfect mix of adventure and relaxation. The island slows down just enough for you to feel like you’ve found your own slice of paradise.
So grab your mask and fins, book your flights, and get ready to experience Maui at one of its very best times of year. Paradise is waiting—will you answer the call?
