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

 

The latest update to this website was at 830pm Monday evening HST


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

2.02  Mount Waialeale, Kauai
1.50  Tunnel RG, Oahu
0.76  Honolimaloo, Molokai
0.01  Lanai City, Lanai
2.71  Puu Kukui, Maui
1.45  Kulaimano, Big Island


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

27  Port Allen, Kauai – NE
42  Oahu Forest NWR, Oahu – ESE
29  Makaulapai, Molokai – ENE
23  Lanai 1, Lanai – NE
45  Na Kula, Maui – ESE
35  Puuloa, Big Island – NNE


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 northwest…thunderstorms in the deeper tropics

 

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Variable low clouds…a showery area of clouds to northeast 

 

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 

 

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Please open this link to see details on any current Watches, Warnings and Advisories noted above




~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Monday comments:  I’m at home here in upper Kula, Maui, Hawaii

512am, it’s clear to partly cloudy here in upper Kula with calm winds, and a low temperature at my place of 57.5 degrees…with the relative humidity 85%

1138am, I drove down to Makawao to play pickleball, although found out the gym was closed…grrrr. So I drove over to Pukalani to the Superette and bought a nice hand of apple bananas, and filled up my tank with gas in Pukalani…before driving back up here to upper Kula.

440pm, it’s partly to mostly cloudy here on Maui, with a few areas that are cloud free. Looking down into the central valley from here in upper Kula, it’s looks somewhat hazy.

510pm, we just had a brief shower here at my place!

630pm, it remains mostly cloudy, and that brief shower here at my place has been going for over an hour now.

 

>>> Highest Temperature Monday, June 29, 2026 – 112 at Rio Grande Village, CA
>>> Lowest Temperature Monday, June 29, 2026 – 18 degrees near Manila, UT

 

Hawaii’s Weather Highlights…as of Monday evening: Moderate to locally breezy trade winds will persist through the week and into the upcoming weekend. Bands of low clouds and showers will periodically push across the islands, focusing primarily over windward and mountain areas during the overnight and early morning hours.

A couple bands of enhanced moisture will move through the islands today through Thursday morning, bringing an increase in shower coverage and intensity, with some locally heavy rainfall possible. One such band is moving through the islands today and tonight.

In addition, humidity levels will be on the rise, bringing muggier conditions across the island chain through the middle of this week.

Weather Commentary…as of Monday evening: A 1038 millibar high pressure system remains far north-northeast of the islands. This high is expected to remain nearly stationary over the next couple of days, and then slowly move to the west, weakening a little as it moves due north of the islands, during the second half of the week. The resultant pressure gradient will maintain moderate to locally breezy trade winds into the weekend.

Clouds and showers will ride in on the trades, focusing the wetter weather over the windward sides of the islands. However at times, these showers will be carried to leeward areas. As is typical in this pattern, afternoon clouds and showers are possible over the kona slopes of the Big Island. Another noticeable batch of moisture, similar to what moved through the islands last night and this morning, is about 360 miles northeast of the islands, and this will likely move into the islands Tuesday evening.

Dew points have reached into the lower 70’s, which will make it feel more muggy than normal across the state. These elevated dew points are expected to continue into the middle of the week, until dropping back into the upper 60’s late Thursday.

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 Monday evening: An area of surface high pressure will remain centered well north of the Hawaiian Islands this week, and help drive moderate to fresh trades trades across our area. The Small Craft Advisory (SCA) has been trimmed back to the typical windy waters around Maui County and the Big Island, with trade winds easing slightly into Tuesday. However, the SCA advisory will likely need to be extended for these areas through much of this week with the persistent trades.

The current moderate, long-period south swell will begin to slowly fade and continue to decline through mid-week, leading to decreasing south and west shore surf through Wednesday. A small bump in surf along south-facing shores is possible Thursday into Friday, with the arrival of a small, long-period south swell, but another larger long-period south swell energy pulse should arrive by late Saturday. Surf along east-facing shores will remain rough and choppy through the week, with moderate to fresh trades in place. Nearly flat to very small surf heights will persist along north facing shores.

 

The 20 Best Things to Do in Kauai, Hawaii (For Nature Lovers)


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 of the southeastern coast of the U. S.:

Shower and thunderstorm activity remains limited and disorganized in association with an area of low pressure along a frontal boundary located off the southeastern U.S. coast. Environmental conditions appear only marginally favorable for some tropical development over the next day or two as the system drifts southward and then westward before conditions become even less favorable later this week.

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

Western East Pacific:

Invest 95E

A broad low pressure trough located well southwest of the southern tip of the Baja California Peninsula continues to produce a large area of showers and thunderstorms that are showing some signs of organization. Gradual development of this system is likely during the next couple of days, and a tropical depression is likely to form by the middle of this week while the system moves generally northwestward and then northward. Environmental conditions are forecast to become less conducive by the end of the week, ending its chances of development.

* Formation chance through 48 hours…high…70 percent
* Formation chance through 7 days…high…80 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:  Migratory Birds Find Their Wintering Spot in Africa Thanks to an Interplay Between Genes and Environment

Migratory birds such as the pied flycatcher typically have wintering locations in Africa close to others from the same breeding population. That means that birds breeding in the Netherlands run into each other again in Africa, while, for instance, Spanish populations also end up close together. But how do they know where to go?

A team of European researchers tracked the migration of pied flycatchers from eight different countries, but also performed a crucial intervention: what happens to the birds of Dutch eggs that are being raised by Swedish foster parents? The results of this study appeared in Science on June 25, and the researchers conclude that genes as well as environment influence where in Africa a bird finds its wintering spot.

Every fall, billions of migratory birds leave their breeding areas to go to a wintering location elsewhere. The pied flycatcher, a small bird of just 12 grams, travels some 3000 to 13,000 kilometres to Africa. There, he often settles in a place where also his peers from the same population reside: pied flycatchers from the Netherlands run into each other in Africa in winter, while their Spanish counterparts meet up elsewhere in Africa.

Why birds from a certain breeding area migrate to such a specific wintering location, is not yet understood. For some species of birds, it’s obvious: young geese learn from their parents, and several other species learn from their travel companions. But for song birds that travel alone and in the night, it is not yet clear why the end up at a specific spot.

Read More at: University of Groningen