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

 

The latest update to this website was at 503pm Friday evening HST


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

3.40  Lower Limhuli, Kauai
2.84  Kahana, Oahu
0.01  Puu Alii, Molokai
0.01  Lanai 1, Lanai
0.02  Waikamoi Treeline, Maui
0.12  Honaunau, Big Island


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

25  Port Allen, Kauai – E
24  Oahu Forest NWR, Oahu – SE 
24  Makapulapai, Molokai – E
21  Lanai 1, Lanai – NE
28  Kahului AP, Maui – NE
28  Kealakomo, Big Island – ENE


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 fronts north and northwest 

 

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Variable low clouds…high clouds 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

Localized showers…very few 

 

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

It’s mostly clear with a few clouds and haze, with calm winds at my place, and with a low temperature of 56 degrees and the relative humidity is 85%

1030am, our skies over Maui have become partly cloudy by mid-morning, and I wouldn’t be surprised if they become partly to mostly cloudy by noon, along with the continued voggy air.

1210pm, Partly cloudy in general, although it appears, from my view here in upper Kula, that the beaches remain sunny from what I can see…and the voggy air remains in place with the light winds.

 

>>> Highest Temperature Thursday, June 18, 2026 – 117 at Stovepipe Wells, CA
>>> Lowest Temperature Friday, June 19, 2026 – 23 degrees at Peter Sinks, UT

 

Interesting web article: Mauka Showers…How Much Rainfall is Below or Above Normal in Hawaii?

 

Hawaii’s Broad Brush Weather Overview…as of Friday evening: Light to moderate east-southeasterly winds will persist through Saturday, before taking on a slight northeasterly component on Sunday. This lighter flow will allow for a daily sea and land breeze cycle that will bring clouds and a few showers to leeward and interior areas each afternoon with clearing overnight. Monday through mid-week, trade winds will strengthen to moderate to breezy levels, bringing a return to more consistent windward showers.

Weather Details for the Hawaiian Islands…as of Friday evening: Light to moderate east-southeast winds continue to fill in across the state, as a weak surface trough pushes further away northwest of Kauai. Surface observations show onshore sea breezes across much of the state, with radar and satellite imagery reflecting this, as they show clouds and a few showers building up over leeward and interior areas.

Light to moderate east-southeast winds will continue through Saturday before the approach of a front/trough from the northwest causes the weak wind flow to back out of the east-northeast on Sunday. Despite the slight variation in wind direction, the light to moderate background flow will bring a combination of windward and mountain showers, along with sea breeze induced leeward and interior showers through the weekend. Overall, shower activity should become limited as drier air filters in.

However, a plume of deeper moisture passing just to the south of the Big Island may bring an increase in showers along the Big Islands windward and southeast facing slopes tonight through Saturday. In addition, dew points are expected to remain in the 70’s for many locations across the state through Saturday, maintaining muggy conditions through much of the weekend.

Heading into next week, the subtropical high to the far northeast will gradually regain control, allowing easterly trades to build to moderate to breezy speeds by Wednesday. This will usher in slightly lower dew points, and combined with the breezier trades, some relief from the mugginess. Aloft, model guidance continues to show an upper level low pinching off of a trough to the far north, and moving toward the state from the northeast. There still remains some variance between the models on where this upper level low tracks, but as it nears by mid-week, it may enhance trade wind showers as batches of moisture roll through.

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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: Light to moderate trades will hold for the next couple of days, as a weak surface ridge remains northeast of the area and front passes by to the north. Trade winds will begin to increase Monday and trend upward through next week, as the front dissipates and the ridge strengthens north of island chain.

A small, medium period south swell will continue to steadily fade into Saturday, allowing surf along south and west-facing shores to drop a notch. A series of small, medium to long period south and southeast swells will fill in Saturday into the first half of next week, which will boost surf heights back near seasonal averages through next week.

Tiny surf will prevail along north-facing shores through most of the coming week, as only some limited short-period energy reaches the islands from the north. Trade winds remain lighter than normal through the weekend, keeping surf along east-facing shores below average. East shore surf will begin to trend up early next week, as trade winds increase upstream and across the region.

 

Drive Around Oahu: Complete Circle Island Route with Honolulu Stops & Map 2026


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

Offshore East Coast of the United States (Remnants of Arthur):

The remnants of Arthur have merged with a frontal system east of the coast of North Carolina, and no subtropical or tropical development is expected.

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

 

>>> 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: There are no active tropical cyclone

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 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: 

Tropical Cyclone 07W…is located approximately 283 NM north of Yap

https://www.metoc.navy.mil/jtwc/products/wp0726.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: Global Rice Production Nearly Doubled Despite Climate Change, Driven Largely by Human Management

Global rice production nearly doubled between the 1960s and the 2010s, despite the negative impacts of climate change, according to a new study from the University of Illinois Urbana-Champaign. The study found that management decisions — including expanded irrigation and increased nutrient inputs — played a central role in sustaining rice production and offsetting climate-related losses. The results of the study suggest that future food security will depend not only on environmental conditions, but also on how rice production systems are managed and adapted to changing conditions.

The study by climate, meteorology and atmospheric sciences professor Atul Jain and former graduate student Tzu-Shun Lin combined observations and process-based modeling to examine the factors that shaped global rice production over the past half century. The researchers evaluated how environmental change and agricultural management together influenced rice production across regions and over time. The results of the study are published in the journal Scientific Reports.

Read More at: University of Illinois Urbana-Champaign

A new study found that rice production nearly doubled between the 1960s and the 2010s, despite the negative impacts of climate change, and that future food security will depend heavily on agricultural management and adaptation, not just climate change.