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

 

The latest update to this website was at 133pm Thursday afternoon HST


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

2.47  Hanalei, Kauai
1.08  Manoa Lyon Arboretum, Oahu
0.62  Puu Alii, Molokai
0.00  Lanai
3.72  Puu Kukui, Maui
0.50  Kawainui Stream, Big Island


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

30  Port Allen, Kauai – ENE
39  Oahu Forest NWR, Oahu – ESE
36  Makapulapai, Molokai – NE
42  Lanai 1, Lanai – NE
47  Na Kula, Maui – ESE
29  Upolu AP, 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 (out of operation). 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

  Thunderstorms far south 

 

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Variable low clouds…showery clouds impacting the state locally…high clouds mostly to the south

 

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https://radar.weather.gov/ridge/standard/PHKI_loop.gif

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

554am, it’s mostly clear here in upper Kula with calm winds, and a low temperature at my place of 56 degrees…with the relative humidity 85%

130pm, I played 4 rousing games of pickleball this morning in Makawao, and don’t tell anyone, but I was on the winning team all 4 times. It’s so much fun I tell you, not to mention the social aspect of relating to the 20+ players. I just got word that it’s raining in Makawao, and it was raining in Makawao when I left there, and it’s raining here in Kula now too. Fortunately, I washed my flannel sheets before I left and they were dry on the line when I returned. I brought them in and put the clothes pins away, and literally not more than 5-10 minutes later it started to rain!

 

>>> Highest Temperature Wednesday, July 8, 2026 – 118 at Stovepipe Wells, CA
>>> Lowest Temperature Thursday, July 9, 2026 – 29 degrees at Peter Sinks

 

Hawaii’s Weather Highlights…as of Thursday afternoon:  Strong high pressure far north of the state will continue to produce breezy trades into the weekend. Mainly windward and mountain showers will ride in on the trades, favoring southern islands today and tonight. Another batch of trade showers arrives in the Aloha State about Sunday.

Weather Commentary…as of Thursday afternoon: Very large surface high 1035 millibars or so meanders over the far NE Pacific the next 10-days, keeping trades breezy with slight slackening expected by the middle of next week. Satellite and cameras show one batch of trade wind showers moving into the Big Island and Maui County, while another exits Kauai. Oahu should be on the northern fringe of this moisture convergence Friday. Still another is forecast near the islands Sunday morning.

Ridging persists aloft so nothing too unusual expected with any of these. Otherwise, typical windward and mountain showers expected. Meanwhile, we’ve need to keep an eye on the tropics to our south and southeast the next couple of weeks, as we could see an increase in low level moisture locally late next week, as the deeper tropics generally trend more active.

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 Thursday afternoon: Strong high pressure centered north of the state continues to generate fresh to strong trade winds across all coastal waters. The Small Craft Advisory (SCA) has been extended for all Hawaiian waters through Friday afternoon. High-resolution guidance suggests that SCA winds will hover near the advisory threshold across the coastal marine zones through this time frame, with higher winds through the channels and typical windy areas. Very little change is expected to the strength of the high, or the pressure gradient across the islands through this weekend, so further extensions to the SCA are anticipated.

A small to moderate, medium-period south-southwest (190-200 degrees) swell continues to generate moderate surf below advisory criteria along south facing shores. This swell energy will gradually lower through the remainder of the week. Expect small surf for south facing shores leading into this weekend. A small to moderate, long period southwest swell (220 degrees) is expected to fill in Saturday into early next week, but due to its Tasman Sea source, could be more inconsistent than the current swell.

Surf along east-facing shores will remain rough and choppy through the week as fresh to strong trades hold. A series of small, moderate- to long-period west (270 to 280 degrees) swells are expected to arrive this weekend, and linger into early next week, sourced from Typhoon Bavi in the far western Pacific. Surf along north-facing shores is expected to remain flat to tiny, with no significant swells forecast from the north or northwest.

Looking ahead, higher than normal high tides will be possible beginning during the latter half of this weekend. Interests immediately along the coasts in low-lying or vulnerable areas should continue to monitor forecasts for possible coastal flooding due to the King Tides from Sunday through the first half of next week.

 

Hawaii's 10 Most Stunning Natural Wonders: See Them Here | Ocean Florida


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 cyclones

>>> Offshore of Southwestern Mexico:

An area of low pressure is expected to form late this weekend or early next week several hundred miles south-southwest of the coast of southwestern Mexico. Environmental conditions appear favorable for gradual development thereafter, and a tropical depression could form next week while the system moves generally west-northwestward.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…medium…60 percent 

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

 

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

Invest 90C

Showers and thunderstorms near a trough of low pressure located several hundred miles southeast of the Hawaiian Islands are showing some signs of organization. Environmental conditions appear conducive for gradual development of this system through early next week, and a tropical depression could form as the system moves westward to west-northwestward across the central Pacific, remaining well south of the Hawaiian Islands.

* Formation chance through 48 hours…medium…40 percent
* Formation chance through 7 days…medium…60 percent

 

>>> Well Southeast of the Hawaiian Islands:

Another area of showers and thunderstorms is associated with a trough of low pressure located more than 1000 miles east-southeast of the Hawaiian Islands. Environmental conditions appear favorable for slow development of this system this weekend into early next week as it moves westward or west-southwestward into the central Pacific, remaining well south of the Hawaiian Islands.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…low…30 percent

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

 

>>> Northwest Pacific Ocean: 

Tropical Cyclone 09W (Bavi)…is located approximately 385 NM south of Kadena AB

https://www.metoc.navy.mil/jtwc/products/wp0926.gif

https://www.metoc.navy.mil/jtwc/products/09W_091800sair.jpg

>>> 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:  Slowing Atlantic Current Fueling Stronger California Storms

A slowing Atlantic Ocean current is projected to intensify powerful storms in California while reducing snowfall over Greenland, according to a new University of California, Riverside study.

The Atlantic Meridional Overturning Circulation, or AMOC, works like a giant conveyor belt in the ocean, moving warm water from the tropics northward to heat places like Europe, then cycling the cooled, denser water back south along the ocean floor.

“It is well known that the AMOC is a big player in the world’s climate system, and that it is slowing down. What we didn’t know is exactly how the AMOC might impact atmospheric moisture and storms outside the Atlantic region,” said Mohima Mimi, a UCR doctoral student in climate dynamics and the paper’s lead author.

“It turns out a weakening AMOC will strengthen storms across parts of North America by the end of the century, along the California coast in particular, while reducing them over Greenland and the Arctic.”

Read More: University of California – Riverside

Image: Atmospheric river forming over the Pacific Northwest.