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

 

The latest update to this website was at 517am Friday morning HST


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

2.28  Mount Waialeale, Kauai
0.57  Moanalua RG, Oahu
0.05  Puu Alii, Molokai
0.00  Lanai
0.43  Puu Kukui, Maui
2.44  Kealakekua, Big Island


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

30  Lihue, Kauai – ENE
32  Oahu Forest NWR, Oahu – ESE
21  Makapulapai, Molokai – E
25  Lanai 1, Lanai – NE
31  Kealaloloa Rg, Maui – NE
21  Lalamilo, 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

Upper level low west…with dissipating Post–Tropical Cyclone 04E (Douglas) far east 

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/14/20261840630-20261841420-GOES18-ABI-HI-14-600x600.gif

Variable low clouds…high clouds arriving over the islands from the west 

 

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 any 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

5am, it’s mostly clear here in upper Kula with calm winds, and a low temperature at my place of 53.5 degrees…with the relative humidity 81%

 

>>> Highest Temperature Thursday, July 2, 2026 – 107 at Stovepipe Wells, CA
>>> Lowest Temperature Friday, July 3, 2026 – 24 degrees at Peter Sinks, UT

 

Hawaii’s Weather Highlights…as of Friday morning: The high pressure ridge north of the Hawaiian Islands will persist through the next several days, building over the weekend, and maintaining a moderate trade regime. Shower activity associated with these trades will focus predominately on windward and mountain areas during this time, with exception to this weekend, as a drier air mass meanders over the islands, inducing a drying trend and limiting shower activity.

Weather Commentary…as of Friday morning: A broad high pressure ridge will persist just north of the Hawaiian Islands through the foreseeable future. Trades will strengthen by the start of the weekend, becoming more moderate to locally breezy, namely in areas that are typically more wind prone. Latest radar observations continue to depict pockets of moisture moving into windward and mountain areas, however, this will gradually lessen over the upcoming weekend, as a drier airmass shifts over the islands.

As this drier airmass moves over the state, afternoon relative humidity values will plummet into the mid- to upper- 40’s across many leeward areas. Light passing shower activity will help to maintain values in the 50’s for windward and mountain areas today, and lasting through the upcoming weekend.

By the start of next week, high pressure ridging will begin to slide southward and build, further strengthening the trades through the outlook period. Excess moisture associated with the remnants of Post-tropical Cyclone Douglas will likely be transported within the trade wind flow toward the Hawaiian Islands, increasing shower activity once again over windward and mountain locations through much of 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 Conditions…as of Friday morning: A surface high pressure far north of the islands will maintain moderate to locally strong trade winds. A Small Craft Advisory (SCA) for the typical windy waters and channels around Maui County and the Big Island has been extended into the weekend. The SCA will likely remain in place through the forecast period, as the high remains nearly stationary, with minor fluctuations in strength.

Forerunners of a small, long period south swell are filling in will peak tonight into Friday. This swell will help maintain near to just below summertime average surf along south facing shores into the weekend. A moderate, long period south-southwest swell will fill in Saturday afternoon and evening, boosting surf heights to near High Surf Advisory levels Sunday and Monday. This swell will slowly fade Tuesday through the middle of next week.

Surf along east facing shores will remain rough and choppy through the forecast period, as moderate to locally strong trades hold. Surf along north facing shores will remain tiny into Friday, with a minor uptick Friday afternoon into the holiday weekend, as a small, medium period northwest swell arrives. Tiny to near flat conditions for north facing shores will return next week.

 

Ten natural wonders of Hawaii - Travel Weekly


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)

 

>>> Northeast Pacific: 

Post-Tropical Cyclone 04E (Douglas) is located about 1210 miles west of the southern tip of Baja California – Last Advisory

DOUGLAS BECOMES A POST-TROPICAL LOW

The post-tropical cyclone is moving toward the north-northwest near 8 mph. A turn toward the northwest is expected later today and on Saturday. Maximum sustained winds are near 40 mph with higher gusts. The post-tropical cyclone is expected to weaken over the next couple of days and then dissipate by Sunday. Tropical-storm-force winds extend outward up to 125 miles to the north of the center.

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

 

Western East Pacific:

>>> A tropical wave is forecast to move westward across the central portion of the East Pacific through the weekend. By the early or middle part of next week, environmental conditions could support some gradual development of this system while it moves generally westward at 10 to 15 mph across the western portion of the East Pacific.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…low…20 percent

 

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

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

 

>>> Northwest Pacific Ocean: 

Tropical Cyclone 09W (Bavi)…is located approximately 482 NM east of Andersen AFB

https://www.metoc.navy.mil/jtwc/products/wp0926.gif

 

Tropical Cyclone 10W (Maysak)…is located approximately 165 NM north-northeast of Da Nang, Vietnam

https://www.metoc.navy.mil/jtwc/products/wp1026.gif

 

>>> 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:  Electric Trucks Closer to ‘Tipping Point’ Than Many Realize – and Cities Can Lead the Way

Cities hold the key to accelerating the transition to electric freight and boosting energy security, new analysis from C40 Cities, University of Exeter and Arup reveals.

Heavy-duty vehicles – though less than 10% of the global commercial vehicle fleet – account for 25% of transport-related CO2 emissions and are expected to see a doubling in global demand by 2050.

While progress is being made in China and Europe, the global transition to electric freight remains uneven – with battery limitations, charging times, grid capacity and infrastructure gaps making trucks harder to decarbonize than passenger vehicles. In 2025, only 8% of trucks sold were electric, compared with 25% for passenger cars.

Read more at: University of Exeter