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

 

The last update to this website was Tuesday morning at 6pm HST


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

1.99  Kilohana, Kauai
0.39  Schofield East, Oahu
0.02  Kamalo, Molokai
0.00  Lanai City, Lanai
0.14  West Wailuaiki, Maui
0.57  Kawainui Stream, Big Island


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

24  Lawai, Kauai – ENE
32  Kuaokala, Oahu – NE 
29  Molokai AP, Molokai – NE 
30  Lanai 1, Lanai – NE
52  Na Kula, Maui – E 
35  Pali 2, 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.

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…cold front north 

 

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Low clouds arriving on the trade winds…high clouds arriving from the west

 

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

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

Showers locally 

 

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

It was clear with a few clouds along the windward sides this morning here in Maui County, with a low temperature at my place a very chilly 45.5 degrees. This low temperature would be very chilly even during the winter season!

240pm, I drove down to Mana Fo0ds in Paia this morning, had to stock up on food after being away for 6-weeks. It’s very much like yesterday weather wise, a mix of sun and clouds, with light winds here in upper Kula, although windy in those areas exposed to the gusty trade winds.


>>> Highest Temperature Tuesday, May 12, 2026 – 115 degrees at Stovepipe Wells, CA
>>> Lowest Temperature Tuesday, May 12, 2026 – 17 degrees at Mount Washington, NH

 

Hawaii’s Broad Brush Weather Overview…as of Tuesday evening:  Breezy trade winds will continue through most of the week before easing slightly this weekend. Showers will favor windward and mountain areas, most frequently at night and during the early morning hours. Late this week into the weekend, an upper-level disturbance may bring a slight uptick in trade wind shower coverage.

Weather Details for the Hawaiian Islands…as of Tuesday evening: Radar and satellite imagery show that a band of moisture associated with a dissipated surface trough finally lifted north of Kauai, leaving limited clouds and showers to move into windward and mountain areas across the state, on the breezy easterly trade wind flow.

Ridging at the surface and aloft will maintain stable, breezy trade wind weather through at least Wednesday, with isolated to scattered showers favoring windward and mountain areas. Heading into Friday and the weekend, model guidance suggests that a mid- to upper-level cutoff low will move over the region, bringing cooler temperatures aloft and increasing instability.

At the same time, precipitable water values are expected to climb to 1.5 to almost 2 inches over the eastern end of the state, as moisture is drawn up from the south. However, with ridging expected to persist at the surface, this setup will likely only amount to an increase in trade wind shower activity through the weekend into early next week, along with ushering in muggier conditions. In addition, the pressure gradient will weaken slightly, allowing the trades to briefly back off this weekend before strengthening again early next week.


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 Tuesday afternoon: High pressure remains in place north of the Hawaiian Islands into the first half of next week, keeping fresh to locally strong trades blowing through Thursday. An upper level disturbance moves into the Hawaii region from the north Friday into the weekend. Expect increasing clouds and shower trends along with a slight decrease in trade wind speeds as a low level trough develops over the islands. The Small Craft Advisory was extended through Wednesday afternoon, and will likely continue into Thursday for the typical windier waters and channels near Maui and the Big Island.

A small, short to medium period, northwest (330 deg) swell will slowly decrease through tonight. The next small, long period, northwest swell arrives into the western islands by Wednesday afternoon, peaking on Thursday, then slowly fading into Friday. Expect small surf to continue along north and west facing shores of the western islands at least into Thursday.

The small, long period, south swell energy will continue to show a slow decline through the week. The next small, long period, south swell arrives on Saturday, keeping surf heights elevated along south facing shores. Slightly elevated surf along east facing shores continues until trades weaken this coming weekend.

 

 

Grand WaileaFour Seasons Maui resort swimming pool


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:  There are no active tropical cyclone

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

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

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



Interesting:  AI Cuts Wildlife Tracking Time From Months to Days

Artificial intelligence can dramatically speed up the painstaking work of tracking wildlife with remote cameras, cutting analysis time from months or even a year to just days while producing nearly the same scientific conclusions as humans.

That’s according to a new study led by researchers at Washington State University and Google, published in the Journal of Applied Ecology. The team tested whether a fully automated AI system could replace humans in processing hundreds of thousands to millions of camera trap images collected in Washington, Montana’s Glacier National Park, and Guatemala’s Maya Biosphere Reserve.

They found that, for most species, models built from AI-identified images closely matched those produced by human experts. Across key measures such as where animals occur and what environmental factors influence them, the results aligned in roughly 85–90% of cases, with limited divergence for rare or difficult-to-identify species.

Read More: Washington State University

Image: SpeciesNet’s AI prediction can be seen on an image of a lynx.