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

 

The latest update to this website was at 1224pm Tuesday afternoon HST


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

1.22  Mount Waialeale, Kauai
0.27  Kaala, Oahu
0.15  Honolimaloo, Molokai
0.00  Lanai City, Lanai
0.37  West Wailuaiki, Maui
0.52  Kaiholena, Big Island


The following numbers represent the strongest wind gusts (mph) Tuesday afternoon: 

20  Waimea Heights, Kauai – ESE
28  Oahu Forest NWR, Oahu – ESE
23  Molokai AP, Molokai – NE
20  Lanai 1, Lanai – NE
27  Na Kula, Maui – SE
27  Kealakomo, Big Island – E


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 front northwest…Tropical Disturbance far east-southeast (no threat to Hawaii) 

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/GEOCOLOR/20261671340-20261672130-GOES18-ABI-HI-GEOCOLOR-600x600.gif

Variable low clouds 

 

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

It’s it’s mostly clear, with calm winds at my place, and with a low temperature of 51.5 degrees and the relative humidity is 77%

1235pm, I drove down to Paia this morning, and did some shopping at Mana Foods. When I left there it was 84 degrees and sunny, by the time I got up to Makawao it was 79, and when I got back here to my place it was 73 degrees and cloudy.

 

>>> Highest Temperature Monday, June 15, 2026 – 115 at Death Valley, CA
>>> Lowest Temperature Tuesday, June 16, 2026 – 26 degrees at Foxpark, WY

 

Hawaii’s Broad Brush Weather Overview…as of Tuesday afternoon: Look for a slightly weaker trade wind flow today, with a few light windward showers. Wednesday into Thursday, will find that a light easterly wind flow will lead to the development of sea/land breezes. Thus, most cloud cover and shower activity will be limited to interior and mountain areas during the afternoons. In addition, deeper moisture moving in from the southeast Wednesday through Friday, should bring increased shower chances to the Big Island and Maui.

Weather Details for the Hawaiian Islands…as of Tuesday afternoon: Current satellite and radar imagery shows some isolated to scattered showers moving in on the trade wind flow impacting windward and mountain locations, with some spillover over to leeward areas. Moderate trades are expected across the state today, due to a high continuing to move far to the northeast.

By Wednesday, the local pressure gradient is expected to weaken even further, with winds becoming light and variable. Daytime heating, combined with weak surface flow, will lead to daytime sea breezes and nighttime land breezes. Clouds and showers should mainly be limited to over the island interiors and mountainous terrain, particularly during the day.

By Wednesday night, however, global forecast models remain consistent in a pocket of deeper moisture, associated with a weak surface trough, moving northward from the southeast towards the Big Island. This feature could act to increase shower coverage, especially along eastern portions of the Big Island. Long range models continue to push this band of moisture up through Maui County and, to a lesser extent, Oahu on Thursday into Friday, before lifting it northward. Light southeast flow, combined with this batch of moisture, could lead to an increase in shower activity over the islands interiors during the afternoons. More typical trade wind weather should return by the weekend.

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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 Tuesday afternoon: Moderate to locally fresh trade winds will gradually ease to light to moderate speeds through the end of the week, as a trough to the northwest weakens the ridge to the north. The ridge will strengthen over weekend as the trough weakens and lifts far north, allowing fresh to moderate easterly trades to return.

The current large, long period south-southwest swell will continue to slowly decline as the swell slowly fades. Swell heights remain elevated as the swell period has begun to decline. The High Surf Warning has been downgraded to a High Surf Advisory (HSA) through tonight for all south facing shores. Another south-southwest swell is expected to fill in Wednesday night into Thursday, that could push surf back up to HSA levels.

Surf along north facing shores will remain flat to tiny. Surf along east facing shores will remain below average as easterly trade winds ease through the end of the week.

A Coastal Flood Statement remains in effect for minor coastal flooding of vulnerable low-lying coastal roadways, docks, boat ramps and other coastal infrastructure, due to King Tides. King Tides combined with water levels that are running higher than predicted, will lead to minor flooding potential around the daily peak tide, which will be during the late afternoon and early evening hours, through today and possibly Wednesday. While minor coastal flooding is expected along all shorelines, the combination of the large south southwest swell and peak daily high tides will make low-lying coastal areas along south and west shores susceptible to more widespread coastal flooding through this evening.

A Marine Weather Statement also remains in effect due to the large, long-period south-southwest swell producing harbor surges and breaking waves near harbor entrances along south and west-facing harbors.

 

Twin Wailua Waterfalls Kauai


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: 

Potential Tropical Cyclone 01L…is located about 35 miles south-southwest of Corpus Christi, Texas

DANGEROUS FLASH FLOODING CONTINUES OVER PORTIONS OF TEXAS AND LOUISIANA FROM POTENTIAL TROPICAL CYCLONE ONE…TROPICAL STORM WARNING ISSUED FOR PORTIONS OF THE LOUISIANA COAST

According to the NHC Advisory number 2 

The system is moving toward the northeast near 6 mph, and this general motion with an increase in forward speed is anticipated over the next couple of days. The disturbance should move offshore the Texas coast tonight, move roughly parallel to the upper Texas coast on Wednesday and move back inland in extreme eastern Texas or southwestern Louisiana late Wednesday or early Thursday. Maximum sustained winds remain near 30 mph with higher gusts. The disturbance is forecast to gradually strengthen and could become a tropical storm early on Wednesday. Weakening is anticipated on Thursday after the system moves back over land.

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

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

 

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

Well east-southeast of the Hawaiian Islands:

Invest 93E

A broad area of low pressure located well east-southeast of the Hawaiian Islands is producing disorganized showers and thunderstorms. Some slight development of this system is still possible today, although the possibility of formation is diminishing as the system moves into a less favorable environment with an increasingly drier mid-level airmass and increasing upper-level winds.

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

 

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

Well East-Southeast of the Hawaiian Islands:

Invest 93E

A broad area of low pressure located well east-southeast of the Hawaiian Islands is producing disorganized showers and thunderstorms. Some slight development of this system is still possible today, although the possibility of formation is diminishing as the system moves into a less favorable environment with an increasingly drier mid-level airmass and increasing upper-level winds.

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

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: Researchers Find Human-Caused Sea Level Rise Is Behind the Most Recent Increases in Extreme Water Levels

A study supported by a Rutgers-led consortium shows climate change is reshaping coastal flood risks worldwide.

Rising seas are increasing the frequency of coastal flooding in many parts of the world, prompting researchers to better understand the role of human-caused climate change in those regions.

Until now, scientists have had limited ability to quantify how much climate change contributes to coastal flooding at local and regional scales. But a new study helps fill that gap by identifying the extent to which human-caused sea level rise is driving increases in extreme water levels around the globe.

“Sea level rise is making both tidal flooding and storm-driven flooding more frequent, extensive and expensive,” said Robert Kopp, a Distinguished Professor in the Department of Earth and Planetary Sciences at the School of Environmental and Biological Sciences, the director of the Megalopolitan Coastal Transformation Hub (MACH) at Rutgers University and a coauthor of the study. “This work allows us to pinpoint the human role in driving these changes.”

Read More: Rutgers University