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

 

The latest update to this website was at 843pm Tuesday evening HST


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

1.38  Mount Waialeale, Kauai
0.22  Oahu Forest NWR, Oahu
0.15  Honolimaloo, Molokai
0.00  Lanai City, Lanai
0.41  West Wailuaiki, Maui
0.22  Lower Kahuku, Big Island


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

21  Lawai, Kauai – E
24  Honolulu AP, Oahu – NE
23  Makapulapai, Molokai – E
22  Lanai 1, Lanai – NE
35  Na Kula, Maui – E
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 front northwest…Tropical Disturbance far east-southeast (no threat to Hawaii) 

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/14/20261672200-20261680550-GOES18-ABI-HI-14-600x600.gif

Variable low clouds…showery area just 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 

 

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.

740pm, in the western horizon there’s the slightest sliver of a new moon, which is visible between clouds. BTW, satellite imagery shows a large area of clouds impacting the Big Island, while it’s still to early to know if this field of clouds will make it up over Maui County.

 

>>> Highest Temperature Tuesday, June 16, 2026 – 119 at Death Valley, CA
>>> Lowest Temperature Tuesday, June 16, 2026 – 26 degrees at Foxpark, WY

 

Hawaii’s Broad Brush Weather Overview…as of Tuesday evening: Lighter winds will support daytime sea breezes and nighttime land breezes Wednesday through Friday. Thus, most cloud cover and shower activity will favor interior and mountain areas during the afternoons. In addition, deeper moisture associated with a weak trough will move northward from the southeast Wednesday through Friday, and will briefly increase shower chances island-by-island as it weakens. A more typical trade wind pattern will return late this weekend.

Weather Details for the Hawaiian Islands…as of Tuesday evening: Mostly dry and stable conditions are prevailing across the Hawaiian Islands. Latest satellite and radar imagery shows isolated light showers across the region, and statewide rain gauge networks have largely reported little to no rain. The exception is over Kauai and Niihau, where showers have been slightly more persistent than elsewhere in the state. An advanced scatterometer pass, as well as surface observations, show that moderate trade winds are prevailing.

As a series of fronts move across the North Pacific well north of the island chain, moderate trade wind flow will become disrupted, further weakening winds across the region. Daytime heating, combined with weak surface wind flow, will lead to daytime sea breezes and nighttime land breezes for the next few days. Clouds and showers should mainly be limited to over the island interiors and mountainous terrain, particularly during the day.

The one caveat in the forecast, however, is that a weak surface trough is currently located southeast of the Big Island. Latest hi-res guidance and global models depict this weakening feature to move northward in the vicinity of the eastern end of the state Wednesday. As a result, shower activity will likely increase over the Big Island tomorrow, especially compared to what was experienced today. T

his trough will continue lifting north, and is forecast to be located just east of Maui Wednesday evening. As the trough moves northward, expect increased showers for portions of Maui County late Wednesday into Thursday, and possibly for Oahu as well by Thursday afternoon. The weakened feature will then continue to dissipate as it moves away from the state.

After a brief period of east-southeasterly flow Saturday, moderate easterly trades will return during the second half of the weekend. Fairly dry conditions will limit windward shower coverage into early next week.

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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 evening: A ridge of high pressure north of the state is driving moderate to locally fresh trades. Trades will ease to light to moderate speeds Wednesday as the trough pushes the ridge east of the state. The ridge will strengthen north of the area over weekend as the trough weakens and lifts far north, allowing moderate to fresh trades to return.

The large, long period south southwest swell that brought warning level surf to the state earlier this week will continue to slowly decline. A High Surf Advisory (HSA) remains in effect through tonight for all south facing shores. Surf heights are expected to drop below advisory levels by Wednesday. Another moderate, long period, south southwest swell is expected to fill in Wednesday night into Thursday that could push surf back up to HSA levels along south facing shores. This swell will slowly fade Friday through the weekend.

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

The Coastal Flood Statement has been extended through tonight 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. 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 has also been extended through tonight due to the moderate-to-long, 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 15 miles east-southeast of Corpus Christi, Texas

LOW PRESSURE SYSTEM MOVING NORTHEASTWARD ALONG THE MIDDLE TEXAS COAST…EXPECTED TO CAUSE LIFE-THREATENING FLOODING IN PORTIONS OF TEXAS AND LOUISIANA

According to the NHC Advisory number 3A 

The system is moving toward the northeast near 5 mph, and this general motion with an increase in forward speed is expected over the next couple of days. On the forecast track, the disturbance should move along or roughly parallel to the upper Texas coast today. The system is expected to move farther inland over extreme eastern Texas or southwestern Louisiana tonight. Maximum sustained winds are near 30 mph with higher gusts. The disturbance is forecast to gradually strengthen and could become a tropical storm today. Weakening is anticipated by tonight when the system moves farther inland.

* Formation chance through 48 hours…medium…60 percent 
* Formation chance through 7 days…medium…60 percent 

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:  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