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

 

The latest update to this website was at 510pm Tuesday evening HST


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

0.85  Kilohana, Kauai
1.90  Schofield East, Oahu
0.36  Puu Alii, Molokai
0.00  Lanai
0.62  Puu Kukui, Maui
0.83  Kawainui Stream Big Island


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

28  Lihue, Kauai – NE
37  Oahu Forest NWR, Oahu – E
33  Molokai AP, Molokai – NE 
36  Lanai 1, Lanai – NE
55  Na Kula, Maui – ESE
53  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

Cold front far northwest…thunderstorms in the deeper tropics to our south 

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/GEOCOLOR/20261461740-20261470130-GOES18-ABI-HI-GEOCOLOR-600x600.gif

Clear to variably cloudy 

 

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

Localized showers…mostly windward 

 

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’s mostly clear here in Maui County, along with the usual low clouds along the windward sides, with calm winds at my place, and with a cool low of 51.5 degrees and the relative humidity is 80%

124pm, it’s cloudy here in upper Kula, which is tempering the heat of the day so far. I drove down to Mana Foods in Paia this morning. It was 81 degrees down there, which cooled off to 77 degrees by the time I drove up through Makawao, and is 72.6 degrees here at my place at the moment.

526pm, it’s partly cloudy here on Maui, yet another summer-like day here in late spring. I don’t anticipate many changes in our local weather until the weekend, although even then, nothing too significant I’ll bet.


>>> Highest Temperature Tuesday, May 26, 2026 – 102 degrees near Poplar, MT
>>> Lowest Temperature Tuesday, May 26, 2026 – 24 degrees near Crescent, OR

 

Hawaii’s Broad Brush Weather Overview…as of Tuesday evening: A high pressure ridge north of the state will maintain trade winds over the region through much of the week. Some weakening in the trades is expected by the weekend. An upper level low approaching from the west could enhance shower activity this weekend as well.

Weather Details for the Hawaiian Islands…as of Tuesday evening: A high pressure ridge north of the area will maintain a trade wind pattern through the week. Moderate to locally breezy trades are expected to continue for another couple of days, with subtle changes in the winds speeds. An upper level low about 700 miles northwest of Kauai will continue move towards the islands this week. As it approaches the islands Friday, a surface trough forming near the islands will help to disrupt the trade wind flow a bit, weakening winds to more moderate levels, and with some areas possibly seeing winds turn a little to the southeast.

Global models continue to be in good agreement with moisture bands continuing to ride in on the trade winds through the week, so expect typical trade winds showers to mainly impact windward and mountain locations. In this pattern, afternoon showers on the Kona slopes are also likely. Heading into the weekend when the upper low is moving over the northern islands, there could be some enhancement to the trade wind showers. The model thunderstorm probabilities remain near zero, so not expecting any thunderstorm activity.

During the start of next week, as the upper low moves north of the Big Island, upper level winds near the summits could increase, but at this time are expected to remain below advisory levels.


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 evening: A surface ridge north of the state will maintain breezy to strong trade winds across the Hawaiian coastal waters through at least Wednesday, before a weakness develops in the ridge, allowing trade wind speeds to ease slightly during the latter part of the week into the weekend. The Small Craft Advisory (SCA), which currently encompasses all Hawaiian coastal waters, has been extended through Wednesday night, then will likely be scaled back later in the week to the typically windier waters around the Big Island and Maui County.

The current south swell will continue to fade while the next pulse of south swell energy arrives tonight, providing a slight boost to south shore surf through mid-week. However, a more significant south swell is expected to begin filling in Thursday night, and will likely bring above-advisory-level surf to south- facing shores through the weekend. This swell originated from a storm-force low that passed south and east of New Zealand over the weekend, generating seas of 35 to 40 feet or greater within Hawaii’s swell window, though the peak of the energy may pass just east of the state. Elevated surf will likely continue into the first week of June, due to a continued active weather pattern near New Zealand sending swells toward Hawaii.

Forerunners from a small, long-period northwest swell filled in along north-facing shores. Although the bulk of the energy from this swell will remain focused northeast of the islands, it is expected to peak locally late tonight into Wednesday, raising surf to above-seasonal-average heights before gradually subsiding into the weekend.

Surf along east-facing shores will remain rough through mid-week, then gradually lower later in the week as the trades ease.

 

Demystifying Hula: The Evolution Of Hawai?ian Dance - Kailani Tours


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

Tropical cyclone formation is not expected during the next 7 days.

>>> Caribbean Sea: There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7 days.

>>> Gulf of America: There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7 days.

Here’s the link to the National Hurricane Center (NHC)

 

>>> Eastern Pacific: There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7 days.

Here’s the link to the National Hurricane Center (NHC)

 

>>> Central Pacific: There are no active tropical cyclones

Routine issuance of the Tropical Weather Outlook will begin on June 1, 2026.

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:  Vitamin C May Help Prevent Cancer

University of Waterloo modelling study explores how antioxidants influence digestion?related cancer risk.

A new study from the University of Waterloo uses mathematical modelling to examine how Vitamin C affects chemical reactions in the digestive system that are linked to cancer development.

Over the last several decades, North American diets have seen a steady increase in exposure to nitrates and nitrites: compounds found in cured meats as well as fruits and vegetables grown using polluted soil and water. While nitrates and nitrites play important roles in neurological and heart health, in the stomach, they can undergo a chemical reaction known as “nitrozation” and form chemicals that many scientists suspect increase cancer risk.

“Since at least the 90’s, researchers have been studying the link between cancer and these compounds, with conflicting results,” said Dr. Gordon McNicol, a post-doctoral researcher in applied mathematics and the first author of the study. “Our work suggests that the presence of dietary Vitamin C may help explain these inconsistencies.”

Read More: University of Waterloo