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

 

The last update to this website was Sunday afternoon at 1205pm HST


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

5.29  Mount Waialeale, Kauai
0.98  Oahu Forest NWR, Oahu
0.17  Puu Alii, Molokai
0.13  Lanai City, Lanai
2.49  Puu Kukui, Maui
2.04  Keahuolu, Big Island


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

18  Nawiliwili, Kauai – NE
27  Palehua, Oahu – NE
27  Makapulapai, Molokai – E  
39  Lanai 1, Lanai – NE
39  Na Kula, Maui – E
31  Lalamilo, Big Island – NNE


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.

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 

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/13/20261300640-20261301430-GOES18-ABI-HI-13-600x600.gif

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…a few are heavy 

 

https://www.weather.gov/wwamap/png/hfo.png

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.

>>> 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

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 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 afternoon:  A weak trough of low pressure will exit west of the island chain this morning, however some showery conditions will linger over Kauai through the morning hours, while rather dry conditions prevail over the rest of the state of Hawaii.

The trough will dissipate west of the islands tonight and Monday, with trade winds increasing to breezy levels by late Monday or Monday night, and continuing through late in the 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.

Short Term Update…as of Sunday morning:  An area of stronger showers has moved off to the west of Kauai as expected, but additional isolated to scattered trade wind showers are still forecast for the remainder of the day on all islands. These showers will be mainly windward and mountains. Otherwise, we should see partly cloudy skies for most folks.

Weather Details for the Hawaiian Islands…as of Sunday afternoon:  A weak trough of low pressure is located over Kauai, 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.

Satellite imagery shows a mix of high and low clouds resulting in partly to mostly cloudy conditions across the state. Radar shows scattered showers moving into windward sections of Oahu and Kauai, with much fewer showers moving into windward areas of the other islands.

The weak trough of low pressure will continue to push slowly west today, exiting to the west of Kauai prior to daybreak this morning. Showers will be most prevalent over windward sections of Kauai this morning, with a decrease expected for the afternoon hours. Elsewhere, rather dry trade wind weather is expected today, with only a few mainly windward showers. Winds will ease following the passage of the trough, with moderate trades then prevailing statewide through the remainder of the day.

The weak trough will dampen out west of the state tonight 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 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 Sunday morning: A high pressure ridge will remain in place north of the Hawaiian Islands this week, with easterly trade winds blowing in the fresh to locally strong range lasting into next weekend.

A small, medium period, northwest swell will maintain small surf heights along north and west facing shores, shifting out of the north to north-northwest direction by tonight and then fading out by Tuesday. The next small, long period, northwest swell pulses into the region by Wednesday afternoon, peaking by Thursday morning, then decreasing from Friday onward. Small, long period, south swell energy will fade, with two additional small long period background south swells moving in on Monday and Thursday night. Surf along east facing shores will remain below normal, with increasing surf heights 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.