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

 

The last update to this website was Saturday evening at 9pm HST


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

6.28  Kilohana, Kauai
0.88  Oahu Forest NWR, Oahu
0.49 Puu Alii, Molokai
0.13  Lanai City, Lanai
2.44  Puu Kukui, Maui
2.20  Mountain View, Big Island


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

30  Lihue, Kauai – NE
38  Kuaokala, Oahu – NNE
23  Makapulapai, Molokai – E  
24  Lanai 1, Lanai – NE
30  Kealaloloa Rg, Maui – NNE
27  Kealakomo, Big Island – NE


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!!!

9pm, cloudy and dry here in upcountry Kula, with most of the showers now over or around Kauai and Oahu. The temperature here at my place is currently 60 degrees with the relative humidity 80%.

 

>>> 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 evening: A weak trough will move westward through Kauai tonight, and exit west of the state by daybreak Sunday. Showery conditions will prevail across Oahu and Kauai tonight, and across Kauai Sunday morning. The trough will dissipate west of the islands Sunday night and Monday, with trade winds increasing to breezy levels by late Monday or Monday night, and continuing through late in the upcoming week. A fairly typical trade wind pattern will become established in the wake of the trough, with showers favoring windward and mountain areas, particularly at night and during the early morning hours.

Weather Details for the Hawaiian Islands…as of Saturday evening:  A weak trough of low pressure is located just to the west of Oahu, while a ridge axis is positioned several hundred miles north of the island chain. Breezy northeasterly trade winds are present to the west of the trough, while moderate east-northeasterly trades prevail to its east. Infrared satellite imagery shows a mix of high and low clouds resulting in mostly cloudy conditions across the state.

Radar imagery shows scattered to numerous showers moving into windward sections of Oahu and Kauai, with much fewer showers moving into windward areas of the other islands.  n short term focus revolves around trade wind trends and rain chances during the next couple of days.

The weak trough of low pressure will continue to push slowly west tonight and Sunday, moving through Kauai and exiting to the west of the island by daybreak Sunday. Showers will be most prevalent over windward sections of Oahu and Kauai overnight, with some decrease in coverage expected on Oahu after midnight, with a decrease in showers expected on Kauai by late Sunday morning. Winds will ease on Kauai following the passage of the trough, with moderate trades then prevailing statewide through Sunday.

The weak trough will dampen out west of the state Sunday night and Monday, while a ridge of high pressure remains in place several hundred miles north of the state. This will bring a gradual increase in trade wind speeds, with breezy conditions becoming established across the entire island chain by late Monday or Monday night. Breezy conditions are then expected to hold through late in the week, as high pressure remains firmly in place to the north of the state. A fairly typical trade wind pattern is expected to prevail through late in the week, with showers favoring windward and mountain areas, particularly during the overnight and early morning hours.


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 evening: A ridge will remain in place north of the islands with moderate to fresh trade winds tonight, gradually strengthening Sunday through Monday, then remaining at fresh to strong levels through late next week. A Small Craft Advisory (SCA) remains 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.