On a January morning in Princeville, the clouds pile up against the green ridges behind Hanalei Bay and break into rainbows over the cliffs. Far below, the long winter swells roll in and boom against the reef, and somewhere offshore a humpback whale slaps its tail. This is the wet, lush season on Kauai’s north shore, a month for waterfalls, big surf to watch from the bluffs, and slow days between showers.
What is the weather like in Princeville in January?
January in Princeville is mild and changeable: warm enough for shorts most of the day, with showers that blow through on the trade winds and leave the sky bright behind them.
| Month | Average high (°F) | Average low (°F) | Rain days | Sea (°F) |
|---|---|---|---|---|
| December | 77.6 | 65.1 | 13.4 | 78.4 |
| January | 78.4 | 62.3 | 9.8 | 76.8 |
| February | 77.2 | 62.6 | 9.3 | 75.3 |
Princeville sits on the windward north shore, up on a bluff where the clouds from the northeast drop their moisture. That makes it noticeably wetter than the sunny south and east of the island, where Lihue and the airport get far less rain in the same month. Rain here usually comes as passing showers, sometimes a gray stretch of a day or two when a front slides through, and the heaviest falls tend to arrive overnight or in the early morning.
Mornings are fresh and often a little damp, and the evenings cool enough that you will want a light layer on a lanai or a restaurant patio. Afternoons are the best part of the day, with sun breaking through and the light turning golden over the bay. The sea off the bluff stays pleasant, though it takes a moment to get used to.
Plan on a rain jacket you can stuff in a daypack, shoes that grip on wet red dirt, and a flexible mind. Days with a few showers are normal, and the rainbows are part of the deal. Daylight lasts almost eleven hours, so there is time to fit in a hike, a beach stop and dinner.
Can you swim in Princeville in January?
The water is warm enough for a comfortable swim, but January is the season of big north shore surf, so the question is less the temperature than where and when you get in.
Winter swells make many north-facing beaches, including stretches of Hanalei Bay and the ocean in front of Princeville, rough, with strong shore break and rip currents. Beaches can look inviting from the bluff and still be a poor place to swim. The lifeguard flags and posted signs decide, and on high-surf days the right choice is often to stay on the sand and watch.
On calmer mornings, the inner part of Hanalei Bay can be gentle enough for wading, paddling and families with older children, and the sheltered little coves below Princeville are sometimes quieter than the open beaches. Snorkeling is less dependable than in summer, since swells stir up the water.
Surfers, on the other hand, come for these waves. Beginners should take a lesson from a local school, and everyone should keep off the reef and give turtles and monk seals plenty of room.
What to do in Princeville in January
The great show of the month is the sea. Humpback whales spend the winter in Hawaiian waters, and from the cliffs around Princeville you may spot spouts, breaches and tail slaps on a clear morning. Bring binoculars, find a bluff with a view, and give it a little patience, because sightings are a chance and never a promise.
The surf is the second show. When big swells arrive, the north shore turns white with spray, and watching from a lookout, well back from the edge, can fill an hour. Hanalei’s pier and the cliff paths near Princeville are favorite perches. Locals bring coffee and a folding chair, and surfers paddle out as the sets roll in.
Hanalei town and the valley
A few minutes down the hill, Hanalei is where Princeville goes for breakfast, shave ice and a browse through small shops. In January the valley is at its greenest, with taro fields glowing in the wet light and waterfalls streaming down the mountain walls. A slow drive to the overlook above the valley, or a stroll along the pier, is a classic first outing.
Go in the morning, when the light is soft and the shops are opening, and keep a rain jacket handy, since the valley makes its own weather. The town suits everyone: couples wandering the galleries, families with kids chasing ice cream, and surfers heading out to the bay.
Waterfalls, gardens and the end of the road
Winter rain feeds the waterfalls, so this is the month they run full. Tropical gardens along the north shore, with their orchids, ginger and bird songs, feel especially lush, and the drive west toward the end of the road passes one-lane bridges and taro patches that make every stop a photo.
Trails in this area can be muddy and slippery after heavy rain, so wear shoes with grip and choose short walks when showers are heavy. Haena State Park, at the end of the road, needs a reservation, so book that first if it is on your list, and check the state parks notices page for the latest on any trail or road.
Eating and drinking on the north shore
Rainy days suit the north shore’s food: fish tacos, poke bowls, plate lunches from roadside trucks, and strong Kauai coffee by the fire at a lodge. Farmers markets sell tropical fruit, fresh breads and flowers, and a shave ice after a wet hike is a ritual in itself.
In the evening, the restaurants around Princeville and Hanalei fill early, with seafood and views of the bay. A sunset cocktail on a covered patio, with the surf booming below, is the January version of a beach evening.
Golf is another draw, since Princeville has long been known for its courses on the bluffs. On drier mornings, a round with the ridges in the background is a pleasure, and the cooler air keeps the walk comfortable.
A two-day itinerary for Princeville in January
Day 1 starts early on the bluff, with coffee and a look at the sea for whale spouts while the air is cool and the light is clear. Drive down into Hanalei for breakfast, walk the pier and wander the shops. By midday, if the sky is clear, check the beach flags and take a short walk or a gentle dip on a calm stretch.
In the afternoon, head to a viewpoint above the valley for the best light on the taro fields, then browse the farmers market or a gallery. Sunset comes around the end of the afternoon, so aim for a west-facing lookout, then have dinner at a seafood place in town before the roads get dark.
Day 2 is for the wild side. Spend the morning on the road toward the end of Kauai’s north shore, stopping at a waterfall, a garden and a one-lane bridge, and if you have a reservation, a walk at Haena State Park. Eat a plate lunch from a truck, then spend the afternoon at a quiet cove if the swell allows, or at a surf lesson watching from the sand.
If the rain settles in, switch to indoor plans: a long lunch, a coffee tasting, a gallery crawl in Hanalei, or a slow afternoon at a spa. Finish with dinner on a lanai, listening to the surf.
Is Princeville busy in January?
Yes in the first days of the month, when the winter holiday visitors are still here, and then it settles into a calmer rhythm for the rest of the month.
Early January carries the tail of the holiday weeks, so rooms, rental cars and dinner tables go quickly, and booking early is the habit that pays off. Later in the month, crowds thin, and rooms and tables are easier to find, though whale season and winter escapes from the mainland keep the north shore steadily popular.
Hanalei’s small restaurants are tiny and fill at dinner, so reserve when you can. Rental cars are worth arranging ahead, since the island has only so many. Haena State Park and other popular sites need reservations, so make those before you land, and expect trailheads and parking to fill by midmorning.
The quietest hours are early mornings and late afternoons, when the day-trippers have left. Rain tends to thin the crowds at viewpoints and beaches, which can make a wet day a good one for photography and empty trails.
What to pack for Princeville in January
The north shore in January rewards layers and quick-drying clothes, because the day can run from damp morning to bright afternoon to cool evening.
- A light rain jacket, for the showers that blow through the valley
- Shoes with good grip, since trails and bluff paths turn slick and muddy
- A light sweater or fleece for cool evenings on a lanai
- Binoculars, for whale spouts and surf from the cliffs
- Swimsuit and mineral sunscreen, for the calm mornings and the sun that breaks through
- A dry bag or zip bags, to keep phones and cameras safe from sudden rain
Good to know before you go
January is outside the official hurricane season, which runs from June 1 to November 30. The north shore’s winter concerns are heavy surf, wet trails and the occasional gray, rainy stretch. The drive to Princeville is easy, but the road through Hanalei crosses narrow one-lane bridges, so go slowly and let others pass. Lodging prices carry taxes on top of the nightly rate.
| Fee | Amount | Who pays |
|---|---|---|
| State Transient Accommodations Tax | 11.00% | Guests of hotels and rentals |
| Kauai County Transient Accommodations Tax | 3% | Guests of hotels and rentals |
Princeville in January vs December and February
Moving the trip to December brings a wetter, more crowded north shore, with more rain days and the busiest holiday weeks. The sea is a touch warmer, and the festive lights and crowds are part of the draw, but rooms and rental cars are harder to find and the surf can be just as big.
February is a shade drier and a little cooler in the water, and whale season is usually still going. The holiday crowds are long gone, though mainland winter breaks keep some weeks lively. It is a good choice if you want the winter atmosphere with fewer people.
Choose December if you want the holiday spirit and do not mind rain. Choose January for the balance of a quieter second half, strong whale watching and big surf to watch. Choose February if you prefer slightly fewer wet days and a calmer pace, while still catching the winter sea.
Is January a good time to visit Princeville?
Yes, for travelers who love green landscapes, whales and dramatic surf, and who are happy to take showers as part of the scenery.
It suits hikers who accept mud, photographers chasing rainbows and waterfalls, and couples who like cozy dinners with the sound of waves. It is less ideal for those who want a guaranteed swim every day or a dry, sunny beach week, since the north shore sea is rough and the showers frequent. Those travelers will be happier on the sunnier south side.
On arrival, confirm any reservations first, particularly for Haena State Park, then check the sea conditions and the weather before planning the days. Start with a morning on the bluff, scanning the water for whales. What makes January special in Princeville is the meeting of rain and light: waterfalls pouring off the ridges, surf thundering below the bluffs, and a whale’s spout catching the sun between showers.
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