In May the pastures above Hanalei Bay are still deep green from the winter rains, and the morning light slides across the taro fields while roosters call from the roadside. Clouds drift over the mountains behind Princeville and clear again within the hour. It is a month of soft mornings and long evenings on Kauai’s north shore, with winter’s heavy surf easing and the beaches opening up for walking, swimming and slow afternoons.
What is the weather like in Princeville in May?
May in Princeville is warm and green, with comfortable days, mild nights and short showers that pass quickly. Kauai’s north shore gets the most rain, so you will still see showers, though they usually come as quick squalls instead of a full day of gray.
| Month | Average high (°F) | Average low (°F) | Rain days | Sea (°F) |
|---|---|---|---|---|
| April | 79.6 | 64.8 | 12.8 | 75.8 |
| May | 82.5 | 66.7 | 10.6 | 77.6 |
| June | 83.6 | 68.1 | 14.2 | 78.7 |
Mornings start fresh and a little damp, ideal for coffee on a lanai and for walks along the bluffs before the sun climbs. By midday it is warm enough for shorts and a swimsuit, and the trade winds keep it from feeling heavy. Showers often sweep in off the mountains for a few minutes, then the sun comes back and the road steams.
Rain here is a matter of side and hour. The north shore and the slopes behind it catch the clouds, while Poipu and the south coast stay much drier, so a day that looks gray in Princeville can be sunny a short drive away. Heavy downpours that last a whole day are not the usual pattern in May, and the daylight is long, with the sun up for more than thirteen hours.
Evenings are mild enough to eat outside, though a light layer helps once the breeze picks up after sunset. Bring a rain shell rather than an umbrella, since the wind makes umbrellas a nuisance. The sea has warmed since April and feels pleasant for most people without a wetsuit.
Can you swim in Princeville in May?
Yes, the water is warm enough for a long swim, and most people find it comfortable without a wetsuit. The north shore is still the north shore, though, and the sea here is more changeable than on the south side of the island.
The big winter swells usually fade by May, which is why beaches such as Hanalei Bay and the coves below Princeville become much friendlier than in January. Even so, waves and currents can still pick up after a swell arrives from the north, and some beaches stay rough while others are mellow.
Hanalei Bay is the long, sweeping favorite for swimming, paddleboarding and beginner surf lessons, with lifeguards at the main beach park. Anini Beach, protected in part by a long fringing reef, is often a good place for families and snorkelers when conditions are quiet.
Always read the posted signs and flags, talk to the lifeguards, and watch the water for a few minutes before you go in. Stay away from the reef, leave turtles and monk seals lots of space, and use mineral sunscreen. Bring a rash guard, since the sun is strong even on a cloudy morning, and a mask if you want to look around the shallows when the water is clear.
What to do in Princeville in May
May begins with Lei Day on May 1, when schools, shops and community groups across Hawaii celebrate with flower lei, hula and music. On Kauai it is a gentle, local affair, and you may spot fresh lei on shop counters, in hair and at small gatherings. It is a good moment to learn what a lei means, and to take part respectfully if someone offers you one.
The rest of the month is about the landscape. The hillsides are still lush, waterfalls are running after the winter rain, and the beaches reopen as the surf calms. Farm stands along the highway sell tropical fruit, and the town of Hanalei has plenty of places for fish tacos, shave ice and poke after a morning outdoors.
Hanalei Bay and Hanalei town
A quick trip down the hill from Princeville brings you to Hanalei, the north shore’s heart. The bay curves for miles beneath green peaks, and in May it is one of the loveliest places on the island to walk the sand early, when the light is soft and the mountains often wear a few clouds.
Wander through the small shops and galleries, then stop at the pier for a look back at the bay. Nearly everyone, from couples to families, finds it a good fit. Go in the morning for the calmest light and the easiest parking, and have a plan for a short shower, since a café or a covered porch is never far away.
Anini Beach and the Princeville coast
Anini Beach lies just along the coast from Princeville and is a favorite for those who want a quieter stretch of sand. A reef runs offshore, which often softens the waves inside it, and the broad lawns behind the beach are good for picnics. Snorkelers and paddlers come here, and kite surfers sometimes pass on windy days.
Closer to the resort, short paths wind down to small beaches and viewpoints. Footing can be slippery after rain, so wear sturdy sandals or shoes. These spots are best at sunrise or in the late afternoon, and they suit anyone who likes a little exploring without a long drive.
Hiking, waterfalls and the Na Pali side
The road past Hanalei ends at Haena, where the dramatic Na Pali coast begins and where trails and beaches are managed through state park rules. Haena State Park requires a reservation, so plan that before you set out, and check the state parks notices page for current conditions, especially after Hurricane Lowell passed just west of Kauai in September 2026 and damaged roads, trails and parks.
If you cannot get in, there is still plenty to do on the way: viewpoints, the one-lane bridges, taro fields and short walks near Princeville. Rain can make trails muddy in May, so start early and bring a light jacket for the shaded stretches.
In the evening, Princeville is a quiet place for a sunset dinner, a golf round or a stroll along the bluffs. Cooler air settles in after dark, and the sky can be wonderfully clear when the clouds break.
A two-day itinerary for Princeville in May
Day 1 begins with a slow morning on the bluffs and a coffee as the clouds lift off the mountains. Drive down into Hanalei before the crowds arrive and walk the length of the beach while the light is gentle. By late morning the day warms up, so swim off the bay if the flags and lifeguards say conditions are good.
Have lunch at a casual spot in town, such as a fish taco stand or a shave ice window, then browse the shops and galleries during the hottest hours. In the afternoon, head to Anini Beach for a picnic, a snorkel or a quiet walk. Sunset in mid-May comes late, so there is time for a relaxed dinner and a stroll before dark.
Day 2 is for the edge of the island. If you have a reservation for Haena State Park, go early and spend the morning among the cliffs and beaches. If a shower rolls in, wait it out in a café, then return to the shore when the sun comes back.
Spend the afternoon on short walks near Princeville or at a lookout over the bay. On a wet day, visit a gallery, a farm stand or a spa, or drive south toward drier Poipu for a few sunny hours. Finish with dinner at a restaurant with a view and an early night.
Is Princeville busy in May?
Not especially, May is a calmer month between the winter holidays and the summer family rush. The north shore is never empty, but you will find more room on the beaches and more choice in restaurants than in peak winter weeks.
Visitors come for spring breaks that tail off early in the month, and for those who prefer fewer people and softer prices than the busiest seasons. Memorial Day weekend at the end of the month brings a bump in travelers and locals alike, so rooms and rental cars tend to tighten then. Reserve ahead of time for that holiday stretch, but you can wait somewhat longer for the calmer weeks.
Restaurant tables in Hanalei fill on weekend evenings, so a reservation is wise for dinner. The reservations that matter most are for Haena State Park, which is limited, and for any boat or tour you want along the Na Pali coast. Lodging near Princeville is often easier to find than at other times of year, though the best places still go first.
What to pack for Princeville in May
Pack clothes that are light, dry fast and can handle a rain shower. The days are warm, the evenings gentle and the trails can be muddy.
- Pack a light rain jacket, since rain comes and goes frequently and umbrellas get clumsy in the breeze.
- Quick-drying clothes, since humidity slows cotton.
- Sturdy sandals or trail shoes for wet paths and slippery rocks.
- Mineral sunscreen and a hat, as the sun is strong even through thin clouds.
- A rash guard and snorkel mask for beach days.
- A light sweater for breezy evenings on the bluffs.
Good to know before you go
May falls just before the Central Pacific hurricane season, which runs from June 1 to November 30. Getting around the north shore is easiest with a car, and the road to Hanalei and Haena is narrow with one-lane bridges, so allow extra time. Book Haena State Park and any popular tours first, then fill in the rest. Lodging is subject to taxes that add to the nightly rate.
| Fee | Amount | Who pays |
|---|---|---|
| State Transient Accommodations Tax | 11.00% | Guests of lodging |
| Kauai County Transient Accommodations Tax | 3% | Guests of lodging |
Princeville in May vs April and June
Moving the trip earlier to April means a slightly cooler sea and a bit more rain, with the last of the winter swell sometimes lingering on the north shore. Spring break crowds can still be around early on, so rooms and cars may be tighter. Waterfalls and green slopes are at their showiest, which is a draw for photographers and hikers.
Moving later to June brings a warmer sea, hotter days and more rain days, though showers are usually brief. Summer family travel picks up, and the beaches become the main attraction as the surf settles. The hurricane season also begins on June 1, so a June trip falls inside it.
Choose May if you want a balance: warm water, easing surf, long days and fewer people. Pick April for the lushest scenery and a little more of the winter feel, and June if you want the warmest sea and the most reliable beach time.
Is May a good time to visit Princeville?
Yes, May suits most travelers who want green scenery, warm days and a north shore that has settled after winter. It is a particularly good fit for couples, walkers, photographers and families who like beaches without the peak-season crush.
Surfers chasing big winter waves should choose another month, and so should anyone who wants guaranteed dry weather, since showers are part of the north shore. If you want sun every hour, spend a day on the drier south coast.
On arrival, reserve Haena State Park and any boat trips first, then plan your beach days around the flags and the weather. May in Princeville is the month when the mountains are still bright green, the sea is turning gentle and Lei Day opens the month with flowers.
Sources
- NOAA NCEI, monthly normals 1991-2020, station USC00518165, 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 USW00022536
- NWS Honolulu / Central Pacific Hurricane Center, « 2026 Central Pacific Hurricane Season Outlook », weather.gov/hfo/hurricaneOutlook2026, checked September 24, 2026