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

 

The latest update to this website was at 921am Thursday morning HST


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

0.94  Mount Waialeale, Kauai
0.51  Kalawahine, Oahu
0.20  Puu Alii, Molokai
0.00  Lanai City, Lanai
0.64  West Wailuaiki, Maui
0.87  Kealakekua, Big Island


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

18  Nawiliwili, Kauai – NE
27  Oahu Forest NWR, Oahu – SE
23  Makapulapai, Molokai – ENE 
27  Lanai 1, Lanai – NE
25  Kealaloloa Rg, Maui – NNE
27  Mauna Loa Obs, Big Island  


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 won’t be a threat to HI)

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/13/20261551040-20261551830-GOES18-ABI-HI-13-600x600.gif

Variable low clouds…high clouds northwest

 

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 Thursday 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 low of 51.5 degrees and the relative humidity is 84%


>>> Highest Temperature Wednesday, June 3, 2026 – 114 degrees near Tecopa, CA
>>> Lowest Temperature Thursday, June 4, 2026 – 27 degrees near Silver Lake, OR

 

Hawaii’s Broad Brush Weather Overview…as of Thursday morning: Moderate to breezy trade winds will dominate the local weather pattern for the next week. Showers will generally favor the typical windward and mountain locations, with minor day-to-day fluctuations in moisture.

Weather Details for the Hawaiian Islands…as of Thursday morning: Moderate to locally breeze trade winds continue to prevail across the region. Local satellite and radar imagery shows that scattered showers and areas of low clouds embedded within the trade wind flow are moving into windward and mountain sections of the islands, though most showers have remained light.

With high pressure firmly established far northeast of the state, moderate to breezy easterly trade winds are expected to prevail for the next week or so. Low pressure troughing aloft will linger near the state for the next several days, but this is not anticipated to have a noticeable impact on local weather, as it will remain weak.

Instead, the dominant feature will be the strong surface high to our north. Trades may weaken slightly by early next week as the surface high weakens. Occasional pockets of moisture embedded within the trade wind flow will result in minor fluctuations of windward and mountain shower activity into early next week. However, with climatologically normal precipitable water values of around 1.2 to 1.4 inches, shower activity is expected to be fairly typical for this time of year.


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 Thursday morning: Fresh to strong easterly trades will prevail as high pressure remains anchored far northeast of the islands, and builds westward through the weekend. A Small Craft Advisory (SCA) for the typically windier channels and waters around Maui County and the Big Island remains in effect through Saturday, and will likely be needed through at least Monday. Trades may ease slightly Tuesday as high pressure shifts away to the northeast.

A large south-southwest swell will continue to gradually decline today, while maintaining south shore surf above the High Surf Advisory threshold. Nearshore buoys continue to observe this swell in the 15 second range, while offshore buoy 51002 shows the swell height dropping. By this evening, surf is expected to fall to moderate levels and will continue to gradually fade through Sunday. Another long-period pulse of south- southwest swell arrives late Sunday and peaks early next week.

Along north-facing shores, a small, medium-period north swell will build today and is forecast to peak early Friday, then ease over the weekend. A tiny west-northwest swell is possible early next week. Surf along east-facing shores will gradually build to around seasonal average by Friday, though some areas exposed to wrapping north swell could be slightly larger tonight and Friday. Near average east shore surf will prevail 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 STILL A SHEARED TROPICAL STORM

According to the NHC advisory number 8

Amanda is moving toward the northwest near 9 mph. A turn toward the west-northwest and west is expected during the next couple of days. A turn toward the southwest at a slower forward speed is forecast later this weekend. Maximum sustained winds are near 40 mph with higher gusts. Some strengthening is possible today and tonight. A gradual weakening trend is expected to begin Friday night or Saturday, and Amanda is forecast to become a post-tropical remnant low this weekend. Tropical-storm-force winds extend outward up to 60 miles from the center.

 

>>> Eastern East Pacific:

An area of low pressure is forecast to form offshore of Central America and southern Mexico during the next couple of days. Environmental conditions appear conducive for gradual development of this system thereafter, and a tropical depression could form late this weekend or early next week while it moves slowly northward.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…medium…50 percent

>>> Offshore Southern and Southwestern Mexico:

A trough of low pressure located well offshore of southwestern Mexico is producing a large area of disorganized showers and thunderstorms. Environmental conditions appear conducive for development of this system, and a tropical depression is likely to form during the next several days while it moves slowly northward or north-northeastward near the coast of southern Mexico.

* Formation chance through 48 hours…low…10 percent
* Formation chance through 7 days…high…70 percent

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

 

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

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:  Rising Seas Could ‘Drown’ Mangroves and Release Carbon

Mangroves could store less carbon – and even begin releasing it – as sea levels rise, new research suggests.

Mangroves are made up of salt-tolerant plants that grow in coastal areas. They cover less than 1% of Earth’s surface but store about 15% of all ocean carbon, most of it in their soils. This ability to store carbon makes them important in efforts to limit climate change.

Previous research has suggested rising seas could increase carbon storage in mangroves, but the new study challenges this.

Read More at: University of Exeter

Mangroves – like this one at Cispata Bay – are efficient carbon sinks, but they may drown and lose their ability to store carbon under sea-level rise.