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

 

The latest update to this website was at 520pm Sunday evening HST


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

0.34  Waiahi RG, Kauai
0.35  Kalawahine, Oahu
0.38  Honolimaloo, Molokai
0.00  Lanai
0.01  Puu Kukui, Maui
0.54  Kapapala Ranch, Big Island


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

14  Port Allen, Kauai – SE
18  Kuaokala, Oahu – NNE
21  Molokai AP, Molokai – NE
23  Lanai 1, Lanai – NE
25  Honoapiilani, Maui – NE
29  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

Cold fronts north and northwest…thunderstorms far south 

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/GEOCOLOR/20261721840-20261730230-GOES18-ABI-HI-GEOCOLOR-600x600.gif

Variable low clouds…although mostly clear in many areas

 

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

It’s mostly clear although with haze, along with calm winds at my place, and with a low temperature of 54.5 degrees and the relative humidity is 81%

1210pm, it continues to be mostly sunny, and I mean almost no clouds here on Maui, except over the West Mountains. The volcanic haze is still around, enough in fact that I’ve skipped my first two walks of the day.

526pm, a very sunny day, one of the warmest I’ve felt since last summer here on Maui!

Happy Father’s Day to all you Dads out there!

 

>>> Highest Temperature Sunday, June 21, 2026 – 112 at Stovepipe Wells, CA
>>> Lowest Temperature Sunday, June 21, 2026 – 28 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 Sunday evening: Mostly dry and stable with a few showers over windward Big Island tonight and Monday. Incoming moisture and an upper low track near or over the area Tuesday to Thursday, bringing higher chances of rain. Dry and stable weather returns Friday into next weekend.

Weather Details for the Hawaiian Islands…as of Sunday evening: A weak surface ridge lies northeast of Hawaii, with a weak front to the north. Gentle trade winds with localized sea breezes are occurring on the leeward sides. Low clouds are observed on visible satellite across most leeward slopes from the sea breeze convergence, but only isolated showers are tracked on radar, with a stable atmosphere with inversions around 7-8,000 feet.

For tonight, leeward clouds will dissipate with most areas remaining mostly clear. Incoming clouds tracking towards the Big Island could bring a few windward showers through the overnight hours. Gentle to locally moderate trades with isolated windward showers will persist Monday.

By late Monday into early Tuesday, high pressure will strengthen and push the remnant of the front away to the west. Trades will strengthen to moderate to fresh breezes, and bring an area of moisture left over from a trough in from the east. An upper low will also dig towards the islands and could enhance the low level moisture, resulting in scattered moderate showers Tuesday through Thursday. Showers will focus windward, but likely some showers will reach leeward sides of the smaller islands.

For Friday into next weekend, moisture and the upper low slide west bringing a drier and more seasonable trade wind pattern.

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 Sunday evening: A weak high pressure ridge north of the islands will strengthen over the next several days. This will bring increasing trade winds with wind driven seas. A low level trough moving in from the east Tuesday through Wednesday will bring an increase in shower activity.

Several overlapping small and medium, long period south swells through the region this week, keeping south facing shore surf elevated into next weekend. Surf along the remaining shores will remain small due to lack of swell energy, and lighter trade winds. As trades increase later this week, surf along east facing shores will increase.

 


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: There are no active tropical cyclone

Central and Western Portion of the East Pacific:

A tropical wave is producing disorganized showers and thunderstorms a few hundred miles off the coast of southwestern Mexico. This system is forecast to move westward at 10 to 15 mph across the central and western portion of the East Pacific basin and some slow development is possible toward the end of the week.

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

 

Well offshore of Southwestern Mexico:

A low pressure system is expected to form late this week several hundred miles offshore of the coast of southwestern Mexico. Some slow development of this system is possible after that time while it moves west-northwestward at 10 to 15 mph.

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

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

 

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

Central and Western Portion of the East Pacific 

A broad area of low pressure is forecast to form well southwest of the Baja California peninsula during the middle to latter part of this week. Some gradual development of this system is possible thereafter while it moves west-northwestward at 10 to 15 mph across the central and western portions of the East Pacific basin.

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

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

 

>>> Northwest Pacific Ocean: 

Tropical Cyclone 07W (Mekkhala)…is located approximately 540 NM south of Kadena AB

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: Dead Organisms Shape the Living World Long After They Perish, Research Shows

Death casts a shadow over life, not only for people but also other animals, plants and entire ecosystems.

In some ways, the phenomenon is well known. A fallen tree sprouts a plethora of mushrooms while also hosting ants, beetles, and the creatures that feast on them.

But a new paper argues that these forces play important yet poorly understood roles in nearly all ecosystems, with the remnants of certain species exerting significant influence long after they die.

Read More at: Yale Environment 360