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

 

The latest update to this website was at 9pm Friday evening HST


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

0.51  Mount Waialeale, Kauai
0.15  Manoa Lyon Arboretum, Oahu
0.03  Puu Alii, Molokai
0.00  Lanai
0.46  Puu Kukui, Maui
2.23  Kawainui Stream, Big Island


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

22  Nawiliwili, Kauai – NE
27  Oahu Forest NWR, Oahu – ESE
31  Molokai AP, Molokai – NE  
27  Lanai 1, Lanai – NE
36  Kealaloloa Rg, Maui – NE
45  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

 Tropical Cyclone 01E (Amanda) in the eastern Pacific (it isn’t a threat to HI)

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/13/20261562110-20261570500-GOES18-ABI-HI-13-600x600.gif

Variable low clouds 

 

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

 

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

It’s mostly clear with some clouds along the windward sides here in Maui County, with calm winds at my place, and with a chilly low of 48 degrees and the relative humidity is 75%

1230pm, it’s clouding up here on Maui, along with some rain showers along the windward sides.

6pm, yet another nice late spring day, as we head towards the beginning of summer…with still those off and on passing showers windward today.

It’s turned mostly clear here on Maui, other than along the windward coasts and slopes, where there continues to be some showers falling. Here at my place the temperature dropped to 62.9 degrees…with the relative humidity 70%


>>> Highest Temperature Friday, June 5, 2026 – 115 degrees at Death Valley, CA
>>> Lowest Temperature Friday, June 5, 2026 – 26 degrees at Peter Sinks, UT

 

>>> Interesting Web blog:  Mauka Showers…Central North Pacific Tropical Cyclone Tracks in Strong El Niño Summers

 

Hawaii’s Broad Brush Weather Overview…as of Friday evening: Breezy trade winds will persist through the weekend and at least the first half of next week, pushing showers over mostly windward and mountain areas.

Weather Details for the Hawaiian Islands…as of Friday evening: High pressure far north of the islands will remain in place through the first half of next week, bringing stable breezy trade winds and showers to mainly windward and mountain areas. Showers will also favor the night time and early morning hours, and minor fluctuations in coverage are expected based on periodic areas of moisture moving through with the trades.

By the later half of next week, a cold front passing by far to the north of the island chain, could push the surface high pressure east, decreasing trade wind speeds then.


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 Friday evening: Fresh to strong easterly trades will prevail as high pressure remains far northeast of the islands through the weekend and beyond. Most of the high resolution guidance shows a slight increase in wind speeds tonight through Saturday night, as the high to the far northeast edges closer to the state. As a result, the Small Craft Advisory (SCA) has been expanded to include all Hawaiian coastal waters and is in effect through Saturday night. Trade winds may ease slightly early next week, as high pressure once again shifts away to the northeast.

The south-southwest swell that produced advisory-level surf along south-facing shores for the past few days will gradually ease into this weekend. A fresh, long- period south swell is expected to arrive late Sunday and peak on Monday. The source of this new swell is a storm-force low that passed southeast of New Zealand last weekend, producing a large swath of 50 knot winds and 30 to 45 foot seas, with the bulk of its energy aimed east of Hawaii. However, a fraction of this long- period energy will reach our south- and west-facing shores late Sunday into Monday. Most likely it will be a small to moderate sized swell that is expected to bring below advisory-level surf. This swell will gradually fade into mid-week.

Along north-facing shores, a small, medium-period north swell has peaked and will continue to fade over the weekend. A tiny west-northwest swell is possible early next week. Surf along east-facing shores will remain choppy and near or slightly above average this weekend into early next week.

 

Small Waves On Sandy Island Beach


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: 

Tropical Cyclone 01E (Amanda)

AMANDA HOLDING STEADY ON A SOUTHWEST TRACK

According to the NHC advisory number 14

Amanda is moving toward the southwest near 5 mph, and this general motion is expected to continue through the weekend. Maximum sustained winds are near 40 mph with higher gusts. Gradual weakening is forecast on Saturday, and Amanda is expected to degenerate into a remnant low on Sunday. Tropical-storm-force winds extend outward up to 35 miles from the center.

 

>>> Offshore Southern and Southwestern Mexico:

Invest 91E

A broad area of low pressure located a few hundred miles southwest of Zihuatanejo, Mexico, is producing a large area of showers and thunderstorms. Environmental conditions appear conducive for development of this system, and a tropical depression is likely to form late this weekend or early next week. The disturbance is forecast to move northeastward and then northward near the coast of southern Mexico during the next few days. Interests in southern Mexico should monitor the progress of this system. Regardless of development, locally heavy rainfall is possible across portions of southern Mexico through early next week.

* Formation chance through 48 hours…high…70 percent
* Formation chance through 7 days…high…70 percent

 

>>> Offshore of Central America:

Disorganized showers and thunderstorms located offshore of Central America are associated with a trough of low pressure. Environmental conditions appear conducive for gradual development of this system while it moves slowly northward toward the coast of Central America, and a tropical depression could form later this weekend or early next week if the system remains offshore. Regardless of development, locally heavy rainfall is possible across portions of Costa Rica, Nicaragua, El Salvador, and Guatemala through early next week.

* Formation chance through 48 hours…medium…50 percent
* Formation chance through 7 days…medium…60 percent

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

 

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

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

Here’s the link to the Central Pacific Hurricane Center (CPHC)

 

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

>>> 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:  Wearable Polygraph Detects Hidden Stress

The body can notice stress before the conscious brain — and that’s no lie.

Northwestern University engineers have developed a small, wireless polygraph system you can wear, as detailed in a new study published in Science Advances.

Unlike polygraphs used in television crime dramas, this wearable version isn’t optimized to detect lies. Instead, engineers and physicians designed it to sense underlying stress hidden deep within the body — no interrogation room required.

The lightweight, bandage-like device gently adheres to the chest, where it simultaneously measures heart activity, breathing patterns, sweat response, blood flow and temperature. Together, these signals capture a real-time, whole-body view of stress.

Read More: Northwestern University

Image: Wearable polygraph device in the palm of a hand for scale.