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

 

The latest update to this website was at 451am Friday morning HST


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

0.02  Kilohana, Kauai
0.22  Hawaii Kai GC, Oahu
0.03  Puu Alii, Molokai
0.03  Lanai City, Lanai
0.05  West Wailuaiki, Maui
0.96  Kamuela Upper, Big Island


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

28  Port Allen, Kauai – ESE
24  Farrington3, Oahu – NE 
28  Makapulapai, Molokai – E
m  Lanai 1, Lanai – m
42  Na Kula, Maui – ESE
28  Mauna Loa Obs, Big Island


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

 

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 Tropical Storm Genevieve moving away from Mexico…no threat to Hawaii 

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/14/20262120630-20262121420-GOES18-ABI-HI-14-600x600.gif

  Remnants of former Tropical Cyclone Fausto northwest of Kauai…moving away

 

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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

450am, it’s mostly cloudy here in upper Kula with calm winds, and a low temperature at my place of 58 degrees…with the relative humidity 85%

720am, I see quite a bit of vog in our air here on Maui, I’ll skip my first walk.

112pm, just back from pickleball, with our skies partly to mostly cloudy, with still a fair amount of voggy air here in Maui County.

416pm, partly cloudy with thick vog here in Maui County.

720pm, the sun went down as a red ball, through the thick vog that continues to envelope Maui County. I trust that these southeast winds will finally shift to the east, with the returning trade winds…and clear this vog out!

 

>>> Highest Temperature Thursday, July 30, 2026 – 119 southwest of Tecopa, CA

>>> Lowest Temperature Thursday, July 30, 2026 – 34 degrees near Bynum, MT

 

Hawaii’s Weather Highlights…as of Thursday evening: A strong high will build north of the state while remnants of Fausto continues to weaken and shifts far northwest. Breezy easterly trades will strengthen to locally windy levels Friday afternoon and evening then hold into Saturday.

A drier and more stable airmass will also settle in over the state, that could produce very windy downsloping winds that may warrant a Wind Advisory. Trades will ease back to the usual breezy levels Sunday into early next week as the high weakens. Typical summertime showers are expected for windward and mountain areas.

Short Term Update: Satellite imagery loops show unorganized layered clouds with isolated embedded convection, associated with the remnants of former TC Fausto, several hundred miles northwest of the Hawaiian islands. Closer to state, scattered low level clouds, caught up in the trades, can be seen drifting towards windward locations. Shower activity generally has produced only a few hundredths of an inch of rain at select windward locations. The outlier was a gauge just northwest of Waimea, on the Big Island, where a third of an inch of rain was reported.

Hi- res models show more of the same tonight with isolated to scattered showers pushing up against the windward slopes, in the moderate to locally breezy trade flow.

Weather Narrative..as of Thursday evening: A surface high far north of the state is generating breezy easterly trade winds across the state. Satellite and radar show scattered clouds with limited light showers mainly along windward and mountain areas, with minimal rainfall statewide.

The high will strengthen tonight through Friday, as remnant low Fausto weakens far northwest of the state. Expect an increase in clouds and showers mainly along windward and mountains tonight, as a low level deck of clouds and showers moves from east to west.

Breezy to locally windy trades are expected Friday afternoon into Saturday, under a dry and stable airmass, that will lower inversion heights to around 5,000 ft. Under these conditions winds could be accelerated downslope, near mountain tops and ridges, through gaps in the terrain, and in areas typically exposed to the trade winds that may warrant a wind advisory.

However, uncertainty remains between the high resolution model guidance running a little stronger and earlier than the global models. With the drier airmass, dewpoints are expected to dip below 70 degrees, offering relief from the recently hot and muggy conditions.

Trades will weaken to moderate to locally breezy levels Sunday into early next week, as Hurricane Genevieve tracks far northeast of the state, disrupting the trade wind flow. Another round of hot, muggy conditions could develop by the mid-week, as remnant moisture from Genevieve moves over the state.

 

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 evening: The remains of Fausto are about 300 miles northwest of Kauai. As it continues to move away from the islands, trade winds will become better established from east to west across the island chain, due to the high pressure system far northeast of the islands. Trades are expected to increase Friday, with several global and high resolution models showing Small Craft Advisory (SCA) level winds reaching more of the coastal waters.

As such, the SCA for the typical windier waters near Maui County and the Big Island remains in effect, and then expands to all coastal waters east of Oahu Friday morning. The SCA may need to be expanded to additional waters over the weekend. A weakness in the ridge to the north of the islands could cause trade winds to weaken again for early next week.

No advisory level surf is expected through the next week. The medium period south swell is peaking, and is expected to gradually fade through the weekend. A mix of small south swells over the next few days, will maintain surf along south facing shores slightly below the seasonal average.

An easterly swell is expected to arrive tonight and persist through the weekend. This swell is a combination of the short period trade wind swell, and the medium to long period east swell generated by Hurricane Genevieve in the East Pacific. North shores will see flat to tiny surf through early next week, with no significant north swells expected.

 

Hawaiian island guide: Find the best destination for your interests


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:

Tropical Storm 07E (Genevieve)…is located about 1035 miles west of the southern tip of Baja California

GENEVIEVE WEAKENS TO A TROPICAL STORM

cone graphic

IR Satellite Image

According to the NHC Advisory number 28 

Genevieve is moving toward the west-northwest near 15 mph. This general motion is expected to continue during the next several days. Maximum sustained winds are near 70 mph with higher gusts. Gradual weakening is forecast during the next few days, and Genevieve is expected to become post-tropical late this weekend. Tropical-storm-force winds extend outward up to 125 miles from the center. The estimated minimum central pressure is 989 mb (29.21 inches).

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

 

Central North Pacific: There are no active tropical cyclones

Tropical cyclone formation is not expected during the next 7 days.

 

>>> Northwest Pacific Ocean:  

Tropical cyclone 12W (Dolphin)…is located approximately 1948 NM east of Kadena AB  

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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:  Weather Whiplash Helped Fuel the Wildfires in France and Spain

In a summer of record heat waves, France and Spain are now facing wildfires that have forced the evacuations of more than 300,000 people. Scientists say that a sharp swing from wet to dry weather, a signature of climate change, helped fuel the blazes.

Although western Europe saw a rainy start to the year, “the summer of 2026 is emerging as one of Europe’s most significant heat and drought events in recent years,” said scientists at World Weather Attribution.

Last month was the hottest June on record in Western Europe, which recorded more than 10,000 excess deaths during an unprecedented heat wave. Fires are now burning near Bordeaux, France, and Madrid, Spain, and have scorched hundreds of thousands of acres in both countries. In some places, towering columns of smoke have even given rise to “fire clouds,” which can generate high winds and lightning strikes that further the spread of fire.

Read More: Yale Environment 360