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

 

The latest update to this website was at 733pm Saturday evening HST


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

0.95  Mount Waialeale, Kauai
0.12  Punaluu Pump, Oahu
0.44  Puu Alii, Molokai
0.00  Lanai
1.94  West Wailuaiki, Maui
2.70  Kawainui Stream, Big Island


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

31  Port Allen, Kauai – ENE
31  Kuaokala, Oahu – NE 
35  Molokai AP, Molokai – NE
36  Lanai 1, Lanai – NE
50  Na Kula, Maui – ESE
39  Puuloa, 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 south…cold front far northwest 

 

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Variable low clouds…high clouds moving over the state from the southwest

 

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

510am, it’s mostly clear with high cirrus clouds here in upper Kula with calm winds, and a low temperature at my place of 57.5 degrees…with the relative humidity 83%

104pm, I played pickleball this morning in Haiku, with several of my best friends in the PB arena. It was a bit too warm down there for my liking, and now that I’m back up here in Kula, it’s more comfortable. It looks a bit hazy looking down into the central valley this afternoon.

450pm, partly sunny with a few exceptions around the Haleakala Crater slopes and the West Maui Mountains. There were both high and low clouds here over Maui C0unty, along with quite a bit of haze as well. The trade winds blow about 95% of the time during this summer month. It’s hazy enough that I’m skipping my late afternoon walk.

733pm, after the sunset, the copious high level cirrus clouds (consisting of ice) lit up a very dynamic orange color!

 

>>> Highest Temperature Saturday, July 11, 2026 – 120 near Tecopa, CA
>>> Lowest Temperature Saturday, July 11, 2026 – 29 degrees at Peter Sinks, Utah

 

Interesting Web Blog: Mauka Showers…Hawaii’s 2026 Dry Season – A Midpoint Update

 

Hawaii’s Weather Highlights…as of Saturday evening: Strong high pressure well north of the state (40N to 45N) will produce breezy trade winds into the first half of next week. A slight weakening and veering of the trade winds is possible during the second half of next week, as the high pressure moves northeast and low pressure potentially develops in the tropics to the south-southwest. An increase in moisture will bring enhanced showers to windward and mountain locations tonight into Sunday, and again Tuesday into Wednesday.

Weather Commentary…as of Saturday evening: Radar shows isolated showers windward and mountains, as we await an increase in moisture coming in late tonight through Sunday. Skies were sunny to mostly sunny over most areas. Trade winds were still breezy, averaging 10 to 20 mph with gusts above 30 mph in favored locations.

Models continue to show an area of increased moisture moving in late tonight and lasting through Sunday. The forecast for showers has been slightly increased, especially especially over the windward and mountain areas, through this time period. A second similar area is coming into focus in the guidance, due to arrive Tuesday afternoon through Wednesday afternoon coming up.

Otherwise, expect a continuation of trade winds with only a slight drop off in speed, as we move into the new work week. To our south, we are seeing continuing signs of potential tropical storm formation, but at this time there is nothing that would directly impact the state. Farther out in time (July 20 to the end of the month), chances increase but still remain small.

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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 Saturday evening: Strong high pressure will remain anchored far north of the state, driving fresh to strong trade winds across the region. A Small Craft Advisory (SCA) remains in effect across all Hawaiian coastal waters through Sunday afternoon, though marine zones outside of the typical windier waters look borderline. The trades will weaken slightly heading into early next week, which will likely lead to the SCA being scaled back to those windier waters and channels around Maui County and the Big Island.

The current small medium-period south-southwest (190-200 degrees) swell will hold surf just below the summer average through the evening. A small to moderate, long-period southwest swell (220 degrees) will fill in tonight through Monday, which will boost surf through early next week. Forerunners from this swell have started to fill in along south-facing shores, as evidenced by a slight boost in the 18 to 22 second band energy observed at the Barber`s Point and Lanai buoys this afternoon.

Surf along east-facing shores will remain rough and choppy through the forecast period as fresh to strong trades hold. A series of small, moderate period west (270 to 280 degrees) swells will hold into early next week, followed by a small, long-period west-northwest (280 to 290 degrees) swell heading into midweek, sourced from Typhoon Bavi in the far western Pacific. No significant north or northwest swells are expected, so surf along north-facing shores is expected to remain flat to tiny.

Higher than normal high tides are expected due to upcoming King Tides, and with water levels running slightly higher than predicted, minor coastal flooding will be possible each afternoon starting tomorrow through Wednesday. However, minor coastal flooding is most likely to occur on Monday and Tuesday afternoons. Interests immediately along the coasts in low-lying or vulnerable areas should continue to monitor forecasts.

 

Private Tours & Vacations to Hawaii | Untold Story Travel


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:

A broad area of low pressure located several hundred miles south of the southern coast of Mexico is producing a large area of disorganized showers and thunderstorms. Environmental conditions appear favorable for gradual development of this system, and a tropical depression is expected to form during the early or middle portions of next week while the system moves generally west-northwestward well off the coast of Mexico.

* Formation chance through 48 hours…medium…40 percent
* Formation chance through 7 days…high…90 percent 

 

>>> Central and Western East Pacific:

A weak and elongated area of low pressure located about 1500 miles southwest of the Baja California peninsula continues to produce showers and thunderstorms. Some additional development is possible over the next couple of days before the system moves west-northwestward into a region of strong upper-level winds and drier air.

* Formation chance through 48 hours…low…20 percent
* Formation chance through 7 days…low…20 percent 

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

 

Central Pacific: There are no active tropical cyclone

>>> Well South-southeast of the Hawaiian Islands:

A trough of low pressure located several hundred miles southeast of the Hawaiian Islands is producing disorganized showers and thunderstorms. Environmental conditions appear favorable for gradual development of this system, and a tropical depression could form by mid-next week while it moves generally westward across the central Pacific, remaining well south of the Hawaiian Islands.

* Formation chance through 48 hours…low…10 percent
* Formation chance through 7 days…medium…40 percent

 

Northwest Pacific Ocean: 

Tropical Cyclone 09W (Bavi)…is located approximately 415 NM west-northwest of Kadena AB – Final Warning

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

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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:  The Color of Penguin Poo: Satellites Reveal the Chilling Truth of Global Warming’s Impact on an Iconic Polar Species

Scientists study poop patterns of Adélie penguin colonies across all of Antarctica over a 30-year span using Landsat satellite images, a first for capturing food-web and population trends at continental and decadal scales relative to climate change.

Scientists from a handful of universities across the country have made innovative use of satellite images from NASA: to determine the diet of Antarctic Adélie penguins across the continent by studying their icy feces with the fidelity and frequency that could only be captured by space technology.

The team, whose new study appears in Current Biology, found satellite images to be an ideal way to study colonies across the continent and over the span of decades to figure out what the mid-sized, tuxedo-patterned seabirds eat. This provided measurable insights into how their diets and population correlate to climate-change impacts like shrinking sea ice.

What they found is a concerning trend where global warming is once again threatening an iconic polar species: Over a 30-year period, Adélie penguins in places with more sea ice ate more fish. In years and places with less sea ice, they relied more heavily on krill.

Read More: University of California – Santa Cruz

Image: Nesting Adélie penguins on Antarctica’s King George Island