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

 

The latest update to this website was at 431pm Wednesday afternoon HST


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

3.31  Kilohana, Kauai
0.91  Tunnel RG, Oahu
0.41  Puu Alii, Molokai
0.00  Lanai
0.14  Hanaula, Maui
0.32  Honaunau, Big Island


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

14  Makaha Ridge, Kauai – NE
24  Kuaokala, Oahu – S 
14  Kalae Hwy, Molokai – NNE 
m  Lanai 1, Lanai – m
15  Kaanapali, Maui – NNW
16  Kahuku Ranch, 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

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/tpw/13/GOES18-TPW-13-900x540.gif

 Hurricane Genevieve moving away from Mexico…no threat to Hawaii 

 

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  Remnants of former Tropical Cyclone Fausto north of Oahu…moving away

 

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Localized showers 

 

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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%

910am, low cumulus clouds are gathering rather quickly as the sea breezes kick in, it wouldn’t be surprising to see them bring showers my way, here in upper Kula this afternoon.

112pm, I’m just back from playing pickleball in Makawao. It was lightly raining in Makawao, and was very muggy. It rained lightly all the way back here to Kula, where it stopped abruptly. Just as I wrote that the rain had stopped here in Kula, it began to lightly rain.

4pm, it’s rather thick fog here in upper Kula, which is interesting as the sun is shining too.

 

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

 

>>> Highest Temperature Wednesday, July 29, 2026 – 119 southwest of Tecopa, CA

>>> Lowest Temperature Tuesday, July 28, 2026 – 34 degrees near Bynum, MT

 

Hawaii’s Weather Highlights…as of Wednesday afternoon: The remnants of Fausto will continue to pass Hawaii to the north, resulting in light winds and muggy conditions. Trades will quickly fill in tonight through early next week, becoming breezy to locally strong Friday into Saturday. Trades will ease to more typically breezy speeds early next week as the high weakens.

Weather Narrative..as of Wednesday afternoon: The remnant low of Fausto, roughly 160 miles north of Oahu, will continue to weaken while tracking west-northwest, north of the state. This low will keep light and variable winds across the state through tonight. A trailing cloud band with embedded light to locally heavy showers is currently moving from east to west across the Big Island.

Elsewhere, the combination of light northerly winds and sea breezes is producing cloudy conditions, with some embedded light showers along mountain slopes and over interior areas. Rainfall rates are less than .1 inches per hour with higher rates of .5 inches in some of the brief heavy showers.

The band of scattered clouds and enhanced moisture will continue to move westward across the rest of the state tonight and through the morning hours Thursday, increasing chances of showers. So far the small areas of heavy showers have been brief and not causing any flooding concerns.

Thursday, a strong high will develop far northeast of the state, prompting breezy to locally strong winds to return by Friday and Saturday. Expect a more typical trade wind pattern with showers, focused mainly along windward and mountain areas.

Drier air will also filter by Friday. Downslope winds under this drier and stable airmass could meet or exceed wind advisory criteria. Sunday into early next week trades will weaken to moderate to locally breezy levels as Hurricane Genevieve tracks far northeast of the state, disrupting the trade wind flow.

 

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 Wednesday afternoon: Variable to light northerly winds in response to Post-Tropical Cyclone Fausto passing north of the islands. Trades gradually build from east to west in its wake. Moderate to fresh ESE trades become strong Friday through the weekend, eventually warranting a Small Craft Advisory for winds, potentially as early as tomorrow for the windier waters of Maui County and the Big Island.

Nearshore buoys indicate continued decline in easterly swell. A small bump in short to medium period NE and N swells will arrive as Post-Trop Cyclone Fausto advances westward north of the islands, providing small surf along N facing shores. Flat to tiny surf then returns by Thursday.

Surf along E shores will trend up Thursday night into the weekend, due to a combination of building short period trade wind swell and renewed medium to long period E swell, this time emanating from Hurricane Genevieve in the E Pac.

A medium period S swell building tonight will push S shore surf toward the summer average Thursday. Surf then fades gradually through the weekend, while a mix of small S swells maintains surf slightly 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 705 miles west-southwest of the southern tip of Baja California

GENEVIEVE WEAKENS AS IT MOVES WEST-NORTHWESTWARD

According to the NHC Advisory number 23 

Genevieve is moving toward the west-northwest near 9 mph. This general motion with a slight increase in forward speed is expected during the next several days. Maximum sustained winds have decreased to near 100 mph with higher gusts. Steady weakening is expected during the next couple of days, and Genevieve is forecast to become post-tropical this weekend. Hurricane-force winds extend outward up to 30 miles from the center and tropical-storm-force winds extend outward up to 125 miles. The estimated minimum central pressure is 970 mb (28.65 inches).

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

 

Central North Pacific: There are no active tropical cyclones

 

>>> Northwest Pacific Ocean:  

Tropical cyclone 12W (Dolphin)…is located approximately 2104 NM south of Wake Island  

https://www.metoc.navy.mil/jtwc/products/wp1226.gif

https://www.metoc.navy.mil/jtwc/products/12W_291200sair.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:  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