Need to know: weather, activities, festivals, and much more for April 2027 vacation in Hawaii

How’s Hawaii’s weather in April?

Temperatures

In general, any time of year, Hawaii’s weather could simply be described as wonderfully warm and tropical. ForApril, the weather is not as hot as you might experience in the summer and early autumn months. For the islands of Oahu, Maui and Hawaii (Big) Island, you can expect the daytime high temperatures in the lower 80s Fahrenheit (roughly 27° to 28°C). The northernmost Hawaiian island, Kauai, will likely have daytime highs in the upper 70s (roughly 26°C). Daytime weather will be perfect for wearing shorts and short-sleeve shirts.

Nighttime lows will dip to the upper 60s Fahrenheit (19-ish °C). You may want to have a light sweater or jacket on hand if you’re out after sunset.

Rain

Historically in Hawaii, April is not considered to be an overly rainy month, but I do advise you that you should be prepared to encounter some degree of rain. Hopefully, the most rain you’ll experience will fall overnight while you’re sleeping.

How do you prepare for rain? Wear quick-drying clothing when you’re out hiking or sightseeing. A breathable, water-proof jacket with a hood is helpful to have on hand.

More weather information

For more information about Hawaii weather, check out our guide to Hawaii weather’s patterns and forecasts with details by island.

Where to stay in Hawaii in April

As mentioned above, April is not known as Hawaii’s rainiest month, but you might see some of the liquid stuff, hopefully it will be brief and followed by one of Hawaii’s magnificent rainbows. On each island, there are microclimates with drier and wetter areas. For more details on choosing a drier spot for your stay, see our article: Where to Stay in Hawaii to Avoid Rain.

What should you pack for an April vacation in Hawaii?

With warm, tropical weather, short-sleeves and shorts are good daytime options. For hikes and sightseeing adventures, it’s always a good idea to pack quick-drying shirts, shorts or trousers. For daytime shoes, you’ll want to wear comfortable walking or trail trekking shoes that you don’t mind getting muddy. See our guide to the essential shoes for a Hawaii vacation.

What to pack for daytime wear for beach or sightseeing

These are the types of clothing that we wear most often during the day in Hawaii:

• • • Swimsuits (Bring at least two suits per person so that you’ll have a dry suit to wear each day.)
    • Swimsuit cover ups
    • Rash guard shirts
    • Quick-drying, moisture-wicking tops with sun protection (Hanes makes a very affordable performance shirt that we probably have a dozen of between us. It’s their Cool Dri tops. They’re quick-drying, moisture-wicking and they have built in UPF 40 sun protection. I have even used the women’s long-sleeve version as a rash guard.)
    • Other shirts, like t-shirts – We recommend wearing light colors that don’t absorb the sun’s warmth as much to help keep you as cool as possible.
    • Quick-drying, moisture-wicking shorts, skorts, and/or trousers depending on your activities
    • Rainproof, breathable jacket – for examples, for women, highly recommend this Columbia waterproof jacket, which is what I have. For men,  this jacket by 33,000ft is a good, affordable option. For kids,  this SaphiRose waterproof rain jacket has a lot of great features and is reasonably priced. If you are wondering why you should bring a rainproof, breathable jacket, see our article: Where do you need a jacket or coat in Hawaii?
    • Hat or visor
    • Sunscreen (See our recommended sunscreens for a Hawaii vacation. Note that you should use a sunscreen that’s Hawaii 104 Act Compliant, meaning that it’s made without Octinoxate and Oxybenzone. Additionally note that Maui County has banned the sale of chemical sunscreens.)
    • Lip balm with sunscreen (Our favorite mineral-based lip balm is this water-resistant Burt’s Bees SPF 30 that comes in three tropical flavors.)
    • For daytime shoes, we recommend flip flops for the beach and pool and close-toe, performance sandals for hiking and sightseeing. See our guide to the essential shoes for a Hawaii vacation.

What to pack to wear for evening/ dinner in Hawaii

For evening wear, you can leave the fancy clothes at home because Hawaii’s dress code is casual. Ladies might want to pack summer dresses or perhaps resort-wear tops with nice shorts, skorts, or trousers. For men, we suggest you pack summery shirts, like polos or short-sleeve button downs, along with nice shorts. If you have clothing with “Hawaiian prints” they’ll be perfect to wear on your Hawaii vacation.

For our expert packing tips from our many trips to Hawaii, see our Hawaii vacation packing guide. We cover more specifics about the types of clothes to bring based on the activities you hope to do.

Hawaii ocean conditions in April

No matter what time of the year you visit the Hawaiian Islands, you must respect the power of the ocean. Ocean safety is imperative to know.

In April, you are less likely to see the big ocean swells of winter that crash onto the north-facing shorelines of the Hawaiian Islands. So, it’s less likely that boat and catamaran tours will be canceled.

Experts advise swimming at beaches with lifeguards. For snorkeling, I recommend you choose an organized-tour company as they are more informed of the safer spots and tend to keep an eye out for their snorkelers’ safety.

The ocean temperatures are warm enough for swimming, even in April. Just be prepared for a jolt of cold as you first step into or dive into the ocean.

Natural Occurrences in Hawaii in April

Some special seasonal occurrences to note are:

• Jacaranda trees are adorned with stunning lavender-hued blooms. The season for jacaranda blooms typically runs from March through May, depending upon elevation.
• Plumeria trees begin blooming again after a winter break. Plumeria trees typically bloom from March through November.
• Thought the peak of humpback whale season is over, you might see some whales lingering before their journey back to Alaska, especially in the earlier part of April. Your best bet would be to take a boat tour–like snorkeling, sunset cruise, etc.–to possibly see humpback whales.

There’s no seasonality with volcano activity, but, Kilauea has been erupting in a very interesting on-again-off-again eruption pattern. Since December 2024, there have been more than 40 episodes. If this pattern continues and you’re vacationing on the Big Island, check to see what’s happening with Kilauea for your opportunity to see this incredible sight.

Hawaii Night Sky Viewing in April 2027

Hawaii is an incredible place to stargaze! That is due to the limited light pollution. So, do take advantage of the opportunity to see the stars. Here are some of the top things you’ll need to know for stargazing this April:

• See this link to find moonrise and set times. Ideally, you’ll want to minimize stargazing when the moon is shining as the light washes out the visibility of fainter stars and planets. Note that the darkest night will be April 6. The  full moon is on April 20.
• The Lyrid Meteor Shower occurs April 16 through April 25 with the peak being on April 22 and 23. You can learn more from this link.

April Festivals and Special Events in the Hawaiian Islands

Cultural festivals offer a fantastic way to learn more about Hawaii. Here are the major cultural festivals that typically occur in April. Note that these events will be fully updated for April 2027 closer to April 2027. Please follow the links for any updates provided by the event organizers.

Hawaii, the Big Island

April TBD for 2027: Merrie Monarch Festival is Hawaii’s top hula and Hawaiian culture event. It’s a tough ticket to get, so if you should be lucky enough to have an opportunity to go to the Merrie Monarch Festival, take advantage of it.

April TBD for 2027: Big Island Chocolate Festival

Maui

April TBD for 2027: East Maui Taro Festival 

Kauai

April TBD for 2027 – Kauai Ukulele Festival 

Oahu

TBD for 2027: Kapu’uola Hula Festival

April 21-29: 2027 World Fireknife Competition at the Polynesian Cultural Center

April 27: Waikiki SPAM Jam Block Party

More information to help you make your April Hawaii vacation plans:

The month of April can be somewhat busy with visitors, particularly families on Easter break. As such, we recommend you pre-book park reservations, some activities and dinner reservations. See these articles with advice on what you should consider pre-booking.

• Reservations needed for Oahu vacation
• Reservations needed for Maui vacation
• Reservations needed for Hawaii, Big Island vacation
• Reservations needed for a Kauai vacation

If you need suggestions for what to see and do on your Hawaii vacation, check out our Hawaii vacation itineraries which ensure you get to experience all the “must see and do” sights and activities.