In April, the taro fields of Hanalei shine a wet, electric green, and roadside stands in Kapaa and Kilauea sell pineapple and papaya by the bag. The winter swells are fading from the north shore, the trade winds blow soft, and the island has the loose, unhurried feel of a place between its busy seasons. This is Kauai in April: warm days, quieter trails and a sea that is finally inviting on almost every side.
What is the weather like in Kauai in April?
April weather is warm and mostly sunny, with a few short showers that pass quickly and rarely spoil a day.
| Month | Average high (°F) | Average low (°F) | Rain days | Sea (°F) |
|---|---|---|---|---|
| March | 78.5 | 67.3 | 6.3 | 75.7 |
| April | 79.8 | 69.5 | 5.4 | 76.3 |
| May | 81.6 | 70.9 | 4.4 | 77.9 |
Mornings start soft and clear, ideal for a coffee on a lanai and an early start on a trail. By midday the sun is strong enough that you will want a hat, and afternoons are warm without being heavy, thanks to the trade winds. Evenings stay mild enough for dinner outside in a light layer.
Rain comes as quick passing showers, often a rainbow’s worth, and it falls unevenly. The north shore around Princeville and Hanalei and the high country catch the most, while the sunny south around Poipu and the west side stay driest. If one coast looks gray, the other is often bright, and a thirty-minute drive can change your whole day.
Up on the Waimea Canyon rim at Kokee, it is far cooler than at the beach, so a sweater and a light rain jacket belong in the daypack. Lihue and the east side sit in between, warm with the occasional shower. The light in April is long and golden, with plenty of daylight for sightseeing and a sunset that arrives comfortably after dinner planning begins.
Can you swim in Kauai in April?
April sits between seasons. The big winter surf on the north shore, at places like Hanalei and Haena, usually settles down, and the bay can be gentle on a good morning, though swells can still arrive and rip currents are a real thing on open beaches. South-facing and west-facing shores such as Poipu and Salt Pond often have quieter water in this season, which suits families and nervous swimmers, and Poipu is a favorite for watching turtles feed near the shore.
Bring a mask and snorkel, a rash guard for sun protection and mineral sunscreen, and keep a respectful distance from turtles and monk seals, which are protected.
What to do in Kauai in April
April is a month for being outdoors. The island is lush from the winter rains, waterfalls still run strongly, and the crowds of the holiday weeks have thinned. Easter and spring break can bring families, so the mood changes a little from one week to the next.
Food follows the season in small ways. Fruit stands and farmers markets overflow with tropical produce, and plate lunches, poke bowls and shave ice are the easy answers after a beach morning. Try a fish taco from a roadside truck or a loco moco at a local diner, and finish with a scoop of something made with local fruit.
Waimea Canyon and Kokee
The canyon is the great day out on the west side. Red cliffs drop away in folds of rust, green and ochre, and the lookouts along the road give you the view with almost no effort. Higher up at Kokee, trails wind through cool forest and the air smells of damp earth and mountain ferns.
Go early, when the canyon is clear, because clouds often gather on the rim as the day goes on. The drive climbs from the coast through changing scenery, so allow a full morning or most of a day with a picnic. It suits almost everyone, but it is cool and can be wet at the top, so bring layers. Pair it with a sunset on the west side afterward.
The north shore: Hanalei, Haena and the Na Pali coast
Hanalei is a sweep of bay with mountains behind it, waterfalls streaking the cliffs, and a small town of surf shops, galleries and shaved ice. Walk the pier, watch paddlers on the river and linger over lunch. The road continues toward Haena, where beaches and the start of the Na Pali coast sit at the end of the line.
Haena State Park requires advance reservations, so plan that before you drive out. The north side catches the most rain of the island, so go with flexible hopes and a rain layer.
Poipu and the south shore
The south shore is the island’s sunny corner. Poipu Beach has easy sand, a sheltered corner for children and frequent turtles resting on the rocks, while the nearby coastline has blowholes and tide pools to explore. Old Koloa town has a plantation-era feel, with shops and restaurants under shady trees.
This is the place to spend a beach afternoon when the north is gray. Come in the morning for the calmest light, then stay for sunset. It suits families, couples and anyone who wants uncomplicated sunshine, and it makes a good base for the island’s most reliable weather.
Also worth a stop are Wailua Falls on the east side, the river valley near Wailua, the lighthouse at Kilauea and the quiet beaches around Kapaa. A farmers market, a botanical garden or a visit to a taro farm fills a showery afternoon nicely.
A two-day itinerary for Kauai in April
Day 1 is the north shore. Start early with coffee and a bakery pastry in Kilauea or Hanalei, and walk the bay while the light is soft and the beach is empty. If you have a Haena reservation, spend the late morning there, on the sand and at the start of the coast. Lunch is a plate lunch or fish tacos from a roadside stand.
In the afternoon, return along the coast with stops at the lookout above the bay and the lighthouse near Kilauea, where seabirds wheel in the wind. Showers are common here, so keep a rain jacket handy. Dinner in Hanalei or Princeville, then home before the dark road.
Day 2 heads to the west and south. Drive up to Waimea Canyon early, before the clouds close in, and continue to the Kokee lookouts and a short forest walk. Eat a picnic lunch with the view, or in Waimea town on the way down.
By afternoon, settle onto the beach at Poipu for a swim and snorkel, with turtles often close to shore. Stay for sunset, then have dinner in Koloa. If the weather turns, the rain card is simple: a botanical garden, a coffee farm tasting, a museum in Lihue or a long lunch at a covered market.
Is Kauai busy in April?
Moderately, with a busy stretch around Easter and spring break and a calmer feel the rest of the month.
Families fill rooms and rental cars during school breaks, and the beaches at Poipu and the restaurants in Hanalei and Kapaa can be full on those weeks. Outside them, trails and lookouts are comfortable, and the pace slows. Rooms, rental cars and dinner tables are easier to find in the quieter weeks.
As a habit, book early for the holiday weeks, especially rental cars and rooms, and a little later for the quiet ones. Dinner tables in popular spots are worth reserving ahead, particularly on weekends.
The reservation that matters most is Haena State Park on the north shore, which requires advance booking, so sort that out before you build the day around it. Boat tours along the Na Pali coast also fill up in good weather, so confirm early once you know your dates.
What to pack for Kauai in April
Pack for sun, short showers and cooler mountain air. Light clothes do most of the work, with a few layers for the high country.
Good to know before you go
April falls before the Central Pacific hurricane season, which runs from June 1 to November 30. A rental car is the easiest way to move around, since the sights are spread along a single coast road. Reserve Haena first if the north shore is on your list, then build the rest around it.
| Tax | Rate | Who pays |
|---|---|---|
| State Transient Accommodations Tax | 11.00% | Guests, on lodging |
| Kauai County Transient Accommodations Tax | 3% | Guests, on lodging |
Kauai in April vs March and May
Moving the trip to March means a slightly cooler sea and a bit more rain, and the winter swells can still linger on the north shore. The spring break crowds are also active, so rooms can feel tighter. It suits travelers who want to catch the last of the lush green.
May is a little warmer and drier, with the sea warming further and the north shore beaches becoming gentler. The feel is quieter and more settled, and it is a good month for snorkeling and boat trips. Summer crowds have not yet arrived.
Choose April if you want a balance of green landscapes, warm water and a manageable pace. Shift to May if you prioritize drier days and calmer seas, and stay with March only if you want the wettest, most waterfall-filled scenery.
Is April a good time to visit Kauai?
Yes, especially for travelers who want warm weather, green scenery and a sea that is mostly inviting without the heaviest crowds.
Hikers, beach lovers, families and couples will all find something that fits. Those who want guaranteed dry weather on the north shore or a perfectly flat ocean everywhere should look to a later month, and surfers hoping for big winter waves will find them mostly gone.
On arrival, settle your Haena reservation if you want it, then spend the first sunny morning at Poipu to ease into island time. What is special about April here is the combination: waterfalls still running from the winter, the trade winds soft, and a sea warming for the summer ahead.
Sources
- NOAA NCEI, monthly normals 1991-2020, station USW00022536, checked September 8, 2026
- Open-Meteo Marine API, average 2015-2024, checked September 8, 2026
- sunrise-sunset.org, sunrise and sunset calculated for the 15th of the month, checked September 8, 2026
- Hawaii Department of Taxation, Tax Announcement No. 2025-03 (Transient Accommodations Tax Law Changes from 2025 Legislative Session), files.hawaii.gov/tax/news/announce/ann25-03.pdf, checked September 24, 2026
- County of Kauai, Department of Finance, Transient Accommodations Tax page, kauai.gov/Government/Departments-Agencies/Finance/Transient-Accommodations-Tax, checked September 25, 2026
- Hawaii Department of Taxation, County Surcharge on General Excise and Use Tax page, tax.hawaii.gov/geninfo/countysurcharge/, checked September 25, 2026
- NOAA NCEI, monthly normals 1991-2020, station USC00518165
- NOAA NCEI, monthly normals 1991-2020, station USC00513099
- NWS Honolulu / Central Pacific Hurricane Center, « 2026 Central Pacific Hurricane Season Outlook », weather.gov/hfo/hurricaneOutlook2026, checked September 24, 2026
To plan your stay
- Things to Do in Kauai: Na Pali Views, Waimea Canyon, North Shore Beaches and Local Food
- Where to Stay in Kauai: Poipu, Princeville, the Coconut Coast and the West Side
- Kauai vs Oahu: Beaches, Things to Do, Weather and Getting Around
- Day Trips from Kauai: Waimea Canyon, Haena and the Na Pali Coast, Wailua and Polihale