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

 

The last update to this website was Sunday evening at 812pm HST


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

4.52  Mount Waialeale, Kauai
0.47  Maoanalua RG, Oahu
0.03  Puu Alii, Molokai
0.00  Lanai City, Lanai
0.07  Puu Kukui, Maui
0.69  Honolii Stream, Big Island


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

20  Nawiliwili, Kauai – NE
31  Kuaokala, Oahu – NE
25  Makapulapai, Molokai – ENE  
32  Lanai 1, Lanai – NE
35  Na Kula, Maui – NE
33  Kealakomo, Big Island – NE


Hawaii’s MountainsHere’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.

https://weather.gc.ca/data/satellite/goes_gwdisk11_1070_100.jpg

Big Blue…click twice for largest version

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/tpw/13/GOES18-TPW-13-900x540.gif

Thunderstorms in the deeper tropics 

 

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

 

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

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

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

Showers locally…not many 

 

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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 Sunday comments:  I’m at home here in upper Kula, Maui, Hawaii

It was clear to partly cloudy this morning here in Maui County, with calm winds and a low temperature at my place 51.5 degrees.

605pm, it’s been a partly cloudy day here on Maui, along with our what seems to be the new norm, at least since I returned from the mainland recently…hazy skies in the afternoons.

>>> Today is a very special day, as it’s Mother’s Day! 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. Her name is Dorothy Rae James

Love Mom Red Heart Stock Illustrations – 8,923 Love Mom Red Heart Stock Illustrations, Vectors & Clipart - Dreamstime

“You’re My Mother”

You’re my Mother,
I would have no other!


>>> Highest Temperature Sunday, May 10, 2026 – 114 degrees near Tecopa, CA
>>> Lowest Temperature Sunday, May 10, 2026 – 17 degrees near Mackay, ID

 

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

 

Hawaii’s Broad Brush Weather Overview…as of Sunday evening: A weak surface trough that brought areas of showers to much of the state the past few days has finally moved west of Kauai. Trade winds will now become fully established and continue through the upcoming week. We will see showers favoring windward and mountain areas, most frequently at night and during the early morning hours. Overall, the next week will be drier for most folks than this past week.

Weather Details for the Hawaiian Islands…as of Sunday evening: A surface trough which brought areas of showers, some briefly moderate to heavy, has moved just west of Kauai. The state will see drier conditions, and for most of the coming week. Radar shows just a few showers in the Kona region on Big Island, with isolated windward showers elsewhere. In addition to lower clouds associated with showers, satellite showed thin high clouds continuing to stream overhead from the west-southwest.

At upper levels, a ridge north of the islands, spread across much of the Pacific to our north, will dominate our weather for the upcoming week. A minor weakness in the ridge may develop late in the week, but guidance is in agreement that it won`t be enough to weaken the associated surface ridge significantly. Therefore, trades will continue for the foreseeable future. We will experience a typical trade wind pattern, with showers mainly windward, and most frequent at night. Wind speeds are forecast to be moderate to breezy, strong enough to be concerning for boaters, but probably not strong enough for wind advisories on land.


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 MapLooping Surface Precipitation…through the next 8-days / Vog Map

 

Marine Environmental Conditions…as of Sunday evening: High pressure remains in place north of the Hawaiian Islands this week in maintenance of fresh to locally strong trades continuing into next weekend. The Small Craft Advisory remains in effect.

A small, medium period, NW swell maintains small surf along N and W shores. A new slightly larger N swell arrives and peaks Monday. Another small, long period, NW swell arrives Wednesday afternoon and peaks early Thursday.

Small, long period S swell has faded. However, two additional small long period S swells arrive Monday and Thursday. Surf along E shores remains below normal in the near term, with increasing surf peaking by Wednesday, as trade winds strengthen.

 

 

How long until Mother's Day? Don't forget a gift for your mom - nj.com


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 256 NM west-northwest of Kayangel – Final Warning

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: 
Study Projects Plant Extinction Rates Through 2100

No matter how fast a species under threat can move, escape can only be successful if the new destination can meet its needs.

An ecological modeling study from the University of California, Davis, found that 7% to 16% of global plant species studied are expected to lose more than 90% of their range, facing high risk of extinction by 2100 under current climate change projections.

The study, published today in the journal Science, said habitat loss due to climate change is expected to drive these extinctions, not a plant’s ability to shift locations or “keep pace” with the changing climate.

This suggests that conservation strategies focused on assisted migration, where people facilitate species range shifts, may not reduce global plant extinctions induced by climate change. However, combining such efforts with restoration and protecting climate change refugia may be more effective.

Read More at: University of California Davis

High plant extinction rates are projected for southern Europe, the western U.S. and southern Australia by 2100, posing risks to plant species like these eucalyptus trees growing in Australia.