Glenn James
Hawaii Weather Today
Creator, Author, and Administrator for 30 years

 

The last update to this website was Saturday evening at 702pm HST


Here are the latest 24-hour precipitation totals (inches) for each of the islands Saturday evening:

5.17  Wailua, Kauai
0.31  Maunawili, Oahu
0.32  Puu Alii, Molokai
0.00  Lanai
0.32  Wailuku, Maui
2.20  Mountain View, Big Island


The following numbers represent the strongest wind gusts (mph) Saturday evening:

32  Lihue, Kauai – NE 
31  Kuaokala, Oahu – NNE
22  Molokai AP, Molokai – NE  
20  Lanai 1, Lanai – NE
24  Na Kula, Maui – SESNE


Hawaii’s Mountains – Here’s a link to the live webcam on the summit of our tallest mountain Mauna Kea (~13,800 feet high) on the Big Island of Hawaii. Here’s the webcam for the (~10,023 feet high) Haleakala Crater on Maui. These webcams are available during the daylight hours here in the islands, and at night whenever there’s a big moon shining down. Also, at night you will be able to see the stars, and the sunrise and sunset too…depending upon weather conditions.

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Big Blue…click twice for largest version

 

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Thunderstorms in the deeper tropics 

 

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High and middle level clouds arriving from the west-southwest…low clouds on the east-northeast trade winds 

 

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https://radar.weather.gov/ridge/standard/PHKI_loop.gif

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Showers locally…a few are heavy 

 

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Please open this link to see details on the current Watches, Warnings and Advisories noted above




~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Saturday comments:  I’m at home here in upper Kula, Maui, Hawaii

540am, we have a mix of high, middle and lower level clouds this morning, to start off our weekend. Here at my place the low temperature was 52 degrees, with the relative humidity 80%

1235pm, it’s cloudy and we’re having a very light shower at my place here in upper Kula…plus it looks very hazy.

548pm, it’s mostly cloudy with lots of hazy air, at least here in Maui County.

702pm…what a sunset!!!

 

>>> As we all know, tomorrow is a very special day, as it’s Mother’s Day! In anticipation I have my Mom’s picture front and center between my two monitors. Each time I glance at the photo, into my Mom’s eyes, I still feel the ultimate love and admiration for her.

For our Mom’s…

Lullabies of Love

Whispers in the dark,
Gentle hands cradle the stars,
Night sighs with her song.


>>> Highest Temperature Saturday, May 9, 2026 – 111 degrees at Death Valley, CA
>>> Lowest Temperature Saturday, May 9, 2026 – 19 degrees at Mount Washington, NH

 

An interesting weather blog: Mauka Showers…A Recap of Hawaii’s 2025 – 2026 Wet Season

 

Hawaii’s Broad Brush Weather Overview…as of Saturday afternoon: Upper ridging will become established over the coming week. There is a weak surface trough that will move west and exit the state through Monday. This will bring increased showers to western islands through Sunday.

An upper level low may develop mid-week to our northeast, but it is unclear what, if any, impact it will have on our weather. The main story for the next week is trade winds, increasing in speed tonight and Sunday, bringing mainly windward and mountain showers to the island chain.

Weather Details for the Hawaiian Islands…as of Saturday afternoon: Showers have been numerous across the Kona region on Big Island and across Oahu, and isolated to scattered on other islands. Between low clouds associated with the showers, and high clouds streaming northeast, skies were mostly cloudy. Trade winds were building in across the area, with northeast winds averaging 10 to 20 mph…with gusts 20 to 30 mph in most areas.

Over the next few days, a weak, broad trough aloft to our north will be replaced with a ridge. This change aloft will help create a stronger surface ridge to the north, and this will strengthen our developing trade winds. A weak surface trough, associated with an increase in moisture, was moving west through the central islands today. It’s expected to continue slowly moving west as it weakens further, exiting the state by Monday. As it does, expect areas of showers to continue to develop and be carried west or WSW on the developing trade winds.

These trades will strengthen through Sunday, and remain moderate to breezy through most of the upcoming week. Upper ridging to our north will be the dominant feature, however, models are coming into better agreement that an upper low may interrupt the ridge beginning around the middle of next week. There is little agreement on how strong this low might be, or exactly where it will be positioned. The general consensus at this time is for it to form sometime between Wednesday and Friday, most likely to our northeast. It could end up being a factor in our weather (increased chance of rain and/or weakening trades), but it’s too early to be sure. Otherwise, expect a typical trade wind pattern beginning Monday, with showers mainly windward and mountains.


https://www.weather.gov/images/hfo/graphics/npac.gif


Here’s a near real-time Wind Profile of the Pacific Ocean – along with a Closer View of the islands / Here’s the latest Weather Map / Looping Surface Precipitation…through the next 8-days / Vog Map

 

Marine Environmental Conditions…as of Saturday afternoon: A ridge will remain in place north of the islands with fresh trade winds tonight, strengthening Sunday and Sunday night and maintaining next week. A Small Craft Advisory (SCA) is posted for waters around Kauai and windward Oahu, and waters around Maui County and Big Island through tonight.

A small northwest swell will maintain through the rest of the weekend, shifting out of the north to north northwest next week. Small south swell will fade this weekend with a small, long period reinforcement Monday through Thursday. Surf along east facing shores will remain below normal this weekend, but will gradually increase next week as trade winds strengthen.

 

 

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World-wide Tropical Cyclone Activity


>>> Here’s a link to the latest Pacific Disaster Center’s Weather Wall


>>> Atlantic Ocean: There are no active tropical cyclones

>>> Caribbean Sea: There are no active tropical cyclones

>>> Gulf of Mexico: There are no active tropical cyclones

Here’s the link to the National Hurricane Center (NHC)

 

>>> Eastern Pacific: There are no active tropical cyclones

Here’s the link to the National Hurricane Center (NHC)

>>> Central Pacific: There are no active tropical cyclones

Here’s the link to the Central Pacific Hurricane Center (CPHC)

 

>>> Northwest Pacific Ocean: 

Tropical Cyclone 05W (Hagupit) is located approximately 174 NM north of Angaur

https://www.metoc.navy.mil/jtwc/products/wp0526.gif

Here’s the link to the Joint Typhoon Warning Center (JTWC)

 

>>> Southwest Pacific Ocean: There are no active tropical cyclones

>>> North and South Indian Oceans / Arabian Sea: There are no active tropical cyclones



Interesting:  Industrial Waste Used to Develop Non-Toxic Wood Protection

The research originated in a project aimed at developing biofuels for ships but has since evolved into an environmentally friendly method for wood preservation. The path to new inventions is rarely straight or predictable, and this has certainly been the case for University of Copenhagen researchers Emil Thybring and Sune Tjalfe Thomsen. For several years, they have been working on a new, sustainable way to impregnate wood without harming the environment.

Today, the wood industry treats timber with heavy metals such as copper to extend its lifespan when used as a construction material. In the pressure treatment process, water with dissolved preservation chemicals is forced into the wood. The problem is that a large proportion of these substances is later leached out when the wood is exposed to rain, ultimately ending up in soil, marine environments and drinking water.

“The toxic substances we introduce into the wood using water to make it last longer also leave the wood with water and end up in nature. It is a serious problem, and one we aim to solve with our technology,” says Emil Thybring, associate professor at the Department of Geosciences and Natural Resource Management.

Read More at: University of Copenhagen

Hyperlignification gives the wood a brown coloration. The researchers are working on controlling the degree of coloration. At the same time, it avoids the acid-green color known from pressure-treated wood found in hardware stores, where heavy metals such as copper are used.