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

 

The latest update to this website was at 518am Wednesday morning HST


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

5.05  Kilohana, Kauai
1.25  Tunnel RG, Oahu
0.47  Puu Alii, Molokai
0.02  Lanai City, Lanai
0.53  Puu Kukui, Maui
0.58  Kawainui Stream, Big Island


The following numbers represent the strongest wind gusts (mph) Wednesday morning: 

14  Puu Lua, Kauai – ENE
22  Kuaokala, Oahu – S 
07  Kalae Hwy, Molokai – NE 
m  Lanai 1, Lanai – m
12  Kahului Harbor, Maui – NNE
14  PTA West, Big Island – SW


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.

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Big Blue…click twice for largest version

 

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 Post-Tropical Cyclone 06E (Fausto) is moving by to our north…Category 3 Hurricane Genevieve moving away from Mexico 

 

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 Post-Tropical Cyclone Fausto northeast of Maui County

 

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Localized showers…very few 

 

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

450am, it’s mostly clear here in upper Kula with calm winds, and a low temperature at my place of 59 degrees…with the relative humidity 80%

 

>>> For more information about Post-Tropical Cyclone Fausto and Hurricane Genevieve, please scroll down this page to the World-wide Tropical Cyclone Activity section

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time of arrival graphic

 

>>> Highest Temperature Tuesday, July 28, 2026 – 120 at Stovepipe, CA

>>> Lowest Temperature Tuesday, July 28, 2026 – 32 degrees near Bynum, MT

 

Hawaii’s Weather Highlights…as of Wednesday morning: Post-Tropical Cyclone Fausto will pass Hawaii to the north today and weaken to a remnant low or trough, resulting in light winds and muggy conditions. Trades will quickly fill in tonight through early next week.

Weather Narrative..as of Wednesday morning: Post-Tropical Cyclone Fausto will pass by the islands today and weaken to a remnant low or trough. Indirect influence of the wind will keep light sea breezes across the islands, with muggy and warm conditions today. Radar shows isolated windward showers across Oahu and Molokai, but little rainfall elsewhere.

Expect mostly dry conditions through the morning, until sea breezes bring interior clouds and showers this afternoon. Confidence in the flooding threat from Fausto remains low, but localized heavy showers can’t be ruled out. Remnants of Fausto will move away tonight, with breezy southeast winds filling in east to west.

Thursday into next week, a strong high will develop far northeast of the state, prompting breezy to locally strong winds to return. Expect a more typical trade wind pattern, with showers focused mainly along windward and mountain areas…with drier air filtering in by Friday. Hurricane Genevieve will disrupt the trade wind flow next Tuesday, as it passes by well to the northeast.

 

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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 Wednesday morning: With Fausto passing north of the islands through the offshore waters today, winds will be light and variable over the coastal waters. Additionally, seas have fallen in the coastal waters, so the Small Craft Advisory has been canceled. Immediately in Fausto’s wake, moderate to fresh east to southeasterly winds will sweep from east to west across the marine areas through Friday, as Fausto moves off to the northwest and loses tropical characteristics.

At the same time, high pressure builds to the north, allowing east-northeast trades to build back in beginning on Thursday, then strengthen to fresh to locally strong levels on Friday through the weekend.

Nearshore buoys on the eastern side of the islands are showing a fairly rapid decline in swell energy from weakening Fausto. Surf along east facing shores has diminished to advisory thresholds, and will continue to decline today. A High Surf Advisory for east facing shores remains in effect through this afternoon.

A small bump in short to medium period swell energy will arrive from the northeast and even north, as Fausto passes north of the islands through tonight, providing some small surf along north facing shores. This will fade back to flat to tiny levels by Thursday.

East shore surf will trend back up Friday into the weekend, due to a combination of rising trade wind swell and a new long-period east swell, generated by Hurricane Genevieve in the East Pacific. A medium period south swell building today and tonight will push south shore surf to near the summer average for Thursday. Surf will then fade gradually through the weekend, but we will continue to see a mix of small south swells, maintaining surf just below the seasonal average.

 

The Largest Hawaiian Islands


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.

 

Northeast Pacific:

Hurricane 07E (Genevieve)…is located about 665 miles west-southwest of the southern tip of Baja California

GENEVIEVE SLOWLY WEAKENING

According to the NHC Advisory number 22 

Genevieve is moving toward the west-northwest near 8 mph. This general motion with a slight increase in forward speed is expected during the next several days. Maximum sustained winds are near 115 mph with higher gusts. Genevieve is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Steady weakening is expected during the next few days, but Genevieve is forecast to remain a hurricane through Thursday night. Hurricane-force winds extend outward up to 45 miles from the center and tropical-storm-force winds extend outward up to miles. The estimated minimum central pressure is 960 mb (28.35 inches).

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

 

Central North Pacific: 

Post-Tropical cyclone 06E (Fausto)…is located about 285 miles north of Hilo, Hawaii

FAUSTO DEGENERATES TO A REMNANT LOW PRESSURE AREA …SIGNIFICANT SURF STILL EXPECTED FOR THE HAWAIIAN ISLANDS THROUGH TODAY

According to the NHC Advisory number 43 

The post-tropical cyclone is moving toward the west-northwest near 13 mph and this general motion is expected to continue for the next couple of days. On the forecast track, Fausto will pass north of the Hawaiian Islands through this evening. Maximum sustained winds are near 35 mph ith higher gusts. Weakening is expected, and the post-tropical cyclone is forecast to weaken to a trough by Friday. The estimated minimum central pressure is 1008 mb (29.77 inches).

 

>>> Northwest Pacific Ocean:  

Tropical cyclone 12W (Dolphin)…is located approximately 254 NM south-southeast of Wake Island  

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>>> 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:  Can Hawaii Grow Rice Again? Yes, and Faster than in Japan

Last fall, University of Hawaii at M?noa researchers asked the question: Can Hawaii grow rice again? Now, a new study published in Frontiers in Agronomy has given a data-driven answer: Yes, and the quality might be higher than expected.

The report is the work of scientists from the UH M?noa College of Tropical Agriculture and Human Resilience (CTAHR) and the Tokyo University of Agriculture and Technology. They found that high-quality Japanese rice types can thrive in fields with traditional irrigation systems, instead of traditional flooded paddies.

The collaboration evaluated two of Japan’s premier short-grain varieties, Koshihikari and Hitomebore, during the 2025 summer season.

The team tested upland cultivation in fields in Kapaa, Kaua?i, owned by farmer Jerry Ornellas, a former CTAHR field technician. Yields in Kapa?a reached 3.79 to 4.01 tons per hectare, comparable to many fields in Tokyo. Surprisingly, while the crops in Japan required 134 days to mature, Hawaii’s crops were harvested in 97 days. Shorter tropical day lengths accelerated their growth.

Read More: University of Hawaii