Kauai, Hawaii Weather Guide

What’s the weather like in Kauai, Hawaii?

Temperatures

Kauai’s weather is warm all year round with daytime high temperatures ranging from 78F in the “colder” months to 88F in the hotter months.

Kauai Hawaii Weather Guide for the Kauai Vacation Rental

Hawaii’s proximity to the equator means that the its weather is tropically warm and consistent throughout the year. Flowers are always in bloom in Hawaii.

Typically December, January and February are the coolest months, while July, August and September are the warmest months.

Evening low temperatures range from 65F in the cooler months to 75F in the warmer months.

Rainfall

The months of April – October tend to have less rain than the months of November – March. The following chart shows how the average rainfall varies by month and by Hawaiian Island.

Hawaii Rainfall Chart
This chart indicates the average rainfall trends by island. The data was collected at the major Hawaii airports. Click this link to get more information and data to help you understand Hawaii rainfall trends.

An interesting aspect about Kauai’s rainfall is that most if the Hawaiian Island precipitation falls overnight. Even if a rain shower should interrupt your day, it rarely lasts more than a few minutes before the glorious sunshine breaks through again. You may even be treated to a rainbow afterwards.

Micro-climates 

Each Hawaii island boasts its own micro-climate depending on where you stay. The island weather is very much influenced by the trade winds which generate windward and leeward regions. In general, the north and east facing coasts tend to get more rain than the south and west-facing coasts. From the following satellite view of Hawaii, notice how the north and east sides are very green in comparison to the other sides. That’s an indicator of the rainfall levels.

Satellite view of the Hawaiian Islands

The tall volcanic mountains of Hawaii are significantly colder than the beach elevations. With elevations over 13,000 feet above sea level, it’s not unusual for Mauna Kea and Mauna Loa on the Big Island to get snow in the winter. At an elevation over 10,000 feet above sea level Haleakala on Maui can also get snow.

Kauai’s Weather

Average high and low temperatures by month for Kauai. Data sourced by GoVisitHawaii.com from Weather.com
Average high and low temperatures by month for Kauai. Data sourced by GoVisitHawaii.com from Weather.com

Princeville and Hanalei on the North Shore of Kauai brings a mixture of sunshine and showers needed to make all of the wonderful rainbows and waterfalls.

The East and South shores like Poipu are likely to offer more sunshine and less rainfall.

Take notice that the popular resort area of Poipu is the driest region, followed by the east side towns of Kapaa and Lihue where many hotels and Poipu vacation rentals Like our is.

 

 

Frequently asked Hawaii weather questions:

When is the best time to go to Kauai?

Anytime is a great time to go to Kauai. We’ve been to Kauai several times in every season and enjoyed wonderful weather. For the best weather and prices, we recommend visiting Hawaii in mid/late April, May, early/mid June, September and October.

Is Kauai cold in the winter?

We don’t think it’s cold. Look at the above weather charts which indicate that even in the coldest months, the average daytime high temperatures average between 78 and 82F, which is quite pleasant. You’d have to visit Kauai during a particularly odd weather pattern to be cold in Kauai. During winter months, you might want to have a light sweater to wear in the evenings, but during the daytime, you’ll most likely enjoy “bikini weather” while playing in the ocean.

Is Kauai’s weather humid?

The degree to which a person feels humidity depends on the humidity of the climate where they live. For example, someone who lives in the humid southeastern United States probably won’t notice much humidity, while someone from an arid southwestern state may take more notice in the humidity.

If the trade winds are blowing, which they normally do, the breeze helps to keep you comfortable in the humid environment.

Do I need to be concerned about rain in Kauai during the winter months?

As previously mentioned, the north and east sides of the island tend to get more rain than the south and west sides of the islands. If you plan to stay on the south and west sides of the islands, you’ll likely minimize your chances of experiencing rain.

Is winter a good time to go to Kauai?

Yes!

Are the northern Hawaiian Islands colder than the southern Hawaiian Islands?

There’s perhaps just a few degrees difference between the extremes, but nothing drastic. If you flew from one island to the other, you probably wouldn’t notice a difference. Review the above temperature charts for Kauai, the northernmost Hawaiian Island, to the Big Island, the southernmost Hawaiian Island for comparison. Note that there’s very little difference.

What’s the water temperature in Kauai? Can I swim in Kauai in the colder winter months?

You can swim in the ocean in Kauai throughout the year — even in winter months. The average ocean temperature for Kauai is 78F and ranges from a low of 76F to 81F.

So with this information at hand You can’t go wrong by reserving your time at our Kauai Vacation Rental, Manualoha Condo 601 for any time you are looking to go. It is in the Southern part of Kauai along the beaches of Poipu, Kauai.

Kauai Beaches

Kauai’s Beaches are voted to be some of the most beautiful on the planet. Kauai’s beaches are famous for long stretches of secluded white sand, warm turquoise waters and tropical backdrops. As you go to one of them, choose one that has lifeguards for swimming and snorkeling and check the surf report before going out. Kauai Beaches can be exposed to strong waves, unpredictable conditions and rip currents. Use caution follow beach safety in and around Kauai waters.

 

Anahola BeachAnahola Beach – Anahola Beach is a beautiful white sand fringed bay, with good swimming and decent snorkeling most of the year due to a protective outlying reef. Anahola Beach Park is located just south of Anahola Bay. This family friendly beach is tucked away and hidden from the main road. This secluded beach is an easy beach to drive up to and enjoy without having to carry your beach gear too far. From the shore you can see the beautiful mountains of Kalalea.

The Anahola Beach Park is manned by a County of Kauai lifeguard and offers good shade, a sandy beach, camping facilities and fun for all ages. This beach is popular among the locals and is crowded on the weekends with families picnicking and enjoying the beach.

The North end of the bay at the mouth of the Anahola River is another great beach for shelling, fishing from shore and photo opportunities. Use caution near the river-mouth for strong currents. There are no lifeguard stations at the river-mouth end of the bay.  Get Directions to Anahola Beach

Anini Beach of Kauai - SnorkelingAnini Beach – There is no lifeguard posted at Anini Beach, but is still considered to be one of the safer beaches on Kauai’s North Shore during the summer months. Anini boasts the longest and widest fringing reef in the Hawaiian Islands and because of the unique conditions it usually has well protected waters and some of the most consistent conditions for water activities. Enjoy snorkeling, beach walks, picnicking, paddle boarding and wind surfing. Anini beach is known to have strong currents in the channels and outside the protective reef. Always use caution especially during high surf.  On windy days you are likely to see wind surfers out riding the waves.

Anini Beach is popular for camping and also a great beach for simply relaxing with a book, fishing from shore or paddle boarding above the lively reef. The deeper and clearer water can be enticing, but it is better to be cautious and stay closer to shore.

Anini Beach is usually less crowded than Poipu or Hanalei and is really quite breathtaking. The Beach Park has multiple campsites with permits, shade trees, picnic tables, pavilions, restrooms and showers. My wife and I went here on one of our trips and within a short time snorkeling we saw a sea turtle, some trumpet fish and several other type of fish while we were going across the reef. Get Diretions to Anini Beach.

Baby beach in Poipu KauaiBaby Beach – in Poipu is a small, secluded and generally protected beach that is great for families traveling with infants and toddlers. The beauty of this little  strip of peach in poipu that it is usually less crowded than nearby Poipu Beach Park and the calm waters are perfect for babies, hence the name. It is not uncommon to view sea turtles and monk seals at baby beach, but remember to keep your distance as these animals are protected.

Finding the beach is a little tricky. From the Lawai Road, make a left on Ho’ona Road and look for a yellow pipe that marks the beach access. Get Directions to Baby Beach in Poipu. This beach is within walking distance from our Kauai Vacation Rental Condo / Manualoha 601.

Continue reading “Kauai Beaches”

Kauai – Tourists can still visit the Island

HONOLULU (AP) 5/28/2018 — KAUAI WEATHER RELATED – Residents and businesses are still cleaning up from flooding that deluged parts of Kauai, but community leaders are urging tourists to keep coming so residents don’t suffer an economic calamity on top of record-breaking rains that smothered a normally green landscape in reddish-brown water.As Kauai Weather Creates Flooding April 2018

Some travelers are cancelling their reservations after getting the wrong impression the mid-April flooding damaged the entire Hawaiian island. Although landslides blocked roads and floods tore apart homes and uprooted trees, most of the island is unscathed. Nearly 50 inches (127 centimeters) of rain fell in one 24-hour period.

Some tourists are avoiding the island’s north shore where fast-moving waters swept away cars, even though many businesses have reopened.

Tourism is the biggest industry on the island there and most restaurants and shops rely on spending by visitors to stay afloat, providing jobs for thousands of Kauai residents.

Kauai County Council Chairman Mel Rapozo, who works as a hotel night auditor, said some visitors have been talked out of canceling their trips but that others cancel them online without speaking to anyone.

“My concern is the economic impact should those businesses start closing up — even temporarily — because they do employ a significant amount of our residents,” Rapozo said. “A lot of people will lose their jobs. And that’s going to cause another situation here for Kauai.”

He said it would be an “economic disaster” if Kauai were to lose many jobs to a flood-induced tourism slowdown.

Tourists have been avoiding hard-hit Hanalei. A historic small town and the commercial center of the island’s north shore even though many restaurants and shops on the town’s pedestrian-friendly main street are operating or reopening.

Rapozo said visitors should stick to the highway and avoid side roads, where tourists are likely to get in the way of repair crews.

Mina Morita, the president of the Hanalei Community Center, said the damaged narrow road leading to her home is now busy with heavy equipment and residents trying to clean up. She hopes visitors will respect the “local traffic only” sign posted on her street but wants them in the center of town because people whose homes were damaged “definitely need their jobs at this time.”

The Weather and flood reports didn’t deter Christina Zhu of Seattle, who hopes to snorkel and hike when she and her boyfriend visit Kauai early next month.

Rescheduling isn’t an option because their tickets aren’t refundable. Plus, they’ve already requested the time off work. She’s been researching what to do by reading guides and checking the Reddit page for Kauai for the latest weather and flooding news.

One activity she’s looking forward to: taking a shelter dog from the Kauai Humane Society on a field trip, perhaps on a dog-friendly hike. The human society has allowed visitors to take a dog on such excursions since 2012.

“Flood or not, I’m sure there will be plenty of things to do on the island, and hopefully as a tourist I will be able to help out somehow as well,” she said.

Jan Snarski of Vancouver, British Columbia said his family was a little worried when they saw how much water was on the ground when they arrived a day after the storm. But they found places to surf, hike and swim.

Snarksi said Kauai was “business as usual” when he left Wednesday.

“The weather was perfect and we had a fabulous last day on the island,” Snarksi said in an email while flying home.

The National Weather Service said preliminary data indicates Kauai’s Weather broke a national rainfall record after a gauge one mile west of Hanalei recorded 49.69 inches (126.21 centimeters) during the 24-hour period ending at 12:45 p.m. on April 15. If certified, that would break the current record of 43 inches (109 centimeters) recorded in Alvin, Texas in 1979.

The island’s north shore towns of Haena and Wainiha will be off-limits until at least next month because landslides cut off Kuhio Highway, the only road connecting them to the rest of the island. Officials hope to open one lane by May 7 but only for emergency vehicles at first.

The blocked highway will prevent access to hiking trails hugging dramatic cliffs along the Napali Coast and popular beach parks at Haena.

Visitors can still gaze across Hanalei valley for a postcard-picture view of taro patches fronting verdant mountains.

And there was no damage to favored sites elsewhere, like the white sands of Poipu Beach, spots overlooking Wailea’s waterfalls and Waimea Canyon — a deep gorge dubbed the “Grand Canyon of the Pacific.” We are seeing clear skies, warm weather at our Kauai Vacation Rental on the South Side of the Island and there is plenty to do on the South Island. More About This Story

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Flood damaged Kauai highway opens to residents Friday

Flood Damaged Kauai

HONOLULU (KITV) – 5/4/2018

A transportation lifeline for isolated residents on Kauai’s north shore look forward to a bit of relief on Friday. The Hawaii Department of Transportation (HDOT) and the County of Kauai announced on Thursday that they will reopen and restore the 2-mile stretch of Kuhio Highway damaged in April floods, beginning Friday, May 4, 2018.Flood Damage Kauai Vehicle Covered With Water

“This is a significant development, and I’d like to thank our entire team of responders who have worked diligently towards reopening a safe pass way for our isolated residents. However, there is still much work left to be done in the Wainiha-Haena area. And while we continue to conduct these emergency operations, this area will be limited to residents only until further notice. We appreciate everyone’s understanding, residents and visitors alike,” said Mayor Bernard Carvalho.

The roads closed after heavy rains on April 14, 2018 flooded and damaged the highway. HDOT says there are many conditions regarding opening this single lane route on Kuhio Highway (Route 560) from Waikoko to Wainiha, including:

It is for local traffic only, and residents need to prove it before they can get a placard to display on their dashboard. Placards will be issued to Wainiha and Haena residents only.

To receive a placard, residents must bring their vehicle and be prepared to prove residency. Placards may be picked up from Planning Director Mike Dahilig at the County office at the Hanalei Colony Resort between 1:30 p.m. to 5:30 p.m. Beginning on Thursday, May 3, and between 9:00 a.m. to 11:00 a.m. and 1:30 p.m. to 5:30 p.m. on Friday, May 4.

There is a 10,000-pound weight restriction, which means only passenger vehicles such as sedans, SUVs and pickup trucks will be allowed on the highway. North Shore residents seeking access to the single lane route are advised to check their individual vehicle weight, which can be found on the vehicle’s registration. All Terrain Vehicles (ATV) and Utility Task Vehicles (UTV) will not be permitted to travel on the single lane route.

If you need to access the area for work (like insurance adjusters, utility company personnel, private contractors, and others) must coordinate their travel needs through the Kauai Emergency Management Agency at 808-241-1800. Those people with approved access will need to have their name on a list provided to the personnel at the checkpoints in order to be allowed through.

There’s a timeline for usage of the road:

  • 6 a.m. Waikoko to Wainiha
  • 6:30 a.m. Wainiha to Waikoko, to include shuttle
  • 12 p.m. Waikoko to Wainiha, to include shuttle
  • 12:20 p.m. Wainiha to Waikoko,
  • 12:40 p.m. Waikoko to Wainiha
  • 1 p.m. Wainiha to Waikoko to include shuttle
  • 6 p.m. Wainiha to Waikoko
  • 6:30 p.m. Waikoko to Wainiha, to include shuttle

The road will only open if the weather permits. Should the local access be suspended due to weather.  HDOT and the County of Kauai will provide updated information through the media and social media accounts.

“Safety is our first priority as we continue recovery efforts in the areas that were isolated last month by heavy flooding and numerous landslides. We are actively deploying disaster response resources to help residents and businesses in those areas. I am pleased that work has progressed to allow residents of Wainiha and Haena to safely use the highway.  However, we are asking visitors to enjoy other areas on Kauai to avoid impacting the ongoing recovery efforts. We also ask the same of the general public,” said Gov. David Ige.

The route opened for one-lane emergency access on April 28, 2018. Friday’s opening marks the first time residents can use the highway.

HDOT says $8 million in quick release funding from the Federal Highway Administration (FHWA) for the emergency work helps greatly. The current estimate for total emergency costs for the response and recovery work on Kuhio Highway is $40 million.

HDOT says it will seek FHWA Emergency Relief funding, which is provided on a cost-share basis for repair or reconstruction of highways damaged as a result of natural disasters.

HDOT says future phases of the work will likely require reassessment of and modification to management of public access through the construction site. The full reopening of Kuhio Highway from Waikoko to Wainiha for two-way traffic is expected within three to four months.

A detailed schedule for the restoration of unrestricted access to Wainiha and Haena will be available following the upgrade of the Waioli, Waipa, and Waikoko scheduled to start in June.

 Posted May 3, 2018 by Diane Ako Hawaii News. More on Flood Damage in Kauai For other news related to Kauai.