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

 

The last update to this website was Tuesday morning at 1005am HST


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

3.32  Kilohana, Kauai
0.39  Manoa Lyon Arboretum, Oahu
0.08  Honolimaloo, Molokai
0.00  Lanai City, Lanai
0.13  West Wailuaiki, Maui
0.31  Kealakekua, Big Island


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

16  Lawai, Kauai – ENE
32  Oahu Forest NWR, Oahu – ESE 
29  Makapulapai, Molokai – ESE 
22  Lanai 1, Lanai – NE
42  Kealaloloa Rg, Maui – NE
50  Puuloa, 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 just south 

 

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 

 

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 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!


>>> Highest Temperature Monday, May 11, 2026 – 114 degrees Death Valley, CA
>>> Lowest Temperature Tuesday, May 12, 2026 – 17 degrees at Mount Washington, NH

 

Hawaii’s Broad Brush Weather Overview…as of Tuesday morning: Breezy trade winds will continue through most of the week. A lingering weak trough near the western end of the state will result in a bit more clouds and showers for Kauai, versus the other islands through mid-week. Otherwise, showers will generally favor windward and mountain areas, most frequently at night and during the early morning hours. An upper level disturbance may bring a slight increase in shower coverage late this week into the weekend.

Weather Details for the Hawaiian Islands…as of Tuesday morning: Satellite and radar imagery continues to show low clouds and showers upstream of Kauai, embedded within the trade wind flow approaching and moving over the Garden Isle, as a weak surface trough continues to linger near the western end of the state. This trough has supported more widespread cloud coverage and numerous showers over Kauai and its adjacent waters throughout the night, a trend that will continue throughout the day. Elsewhere, showers and low clouds embedded within the moderate to locally breezy trade wind flow, moving into primarily windward and mauka sections of the islands, have been more isolated in nature.

The weak trough near the western end of the state is forecast to gradually lift north and dissipate by Wednesday. Otherwise, ridging at the surface and aloft will maintain stable, breezy trade wind weather across the state through at least Thursday, with isolated showers favoring windward and mountain areas.

Near the end of the week (Friday into the weekend), confidence in the forecast decreases a bit as model guidance diverges. While the consensus is that that a mid- to upper- level cutoff low will develop in the vicinity of the islands, there are some significant differences among the global models as to the location of this feature (for example, the ECMWF depicts it well northeast of the islands while the GFS places it very close to, or even just west of, Kauai). Regardless, instability looks to increase as temperatures aloft cool, potentially increasing trade wind shower activity to end the 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 morning: 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.