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

 

The latest update to this website was at 918am Monday morning HST


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

1.93  Mount Waialeale, Kauai
0.25  Moanalua RG, Oahu
0.12  Puu Alii, Molokai
0.00  Lanai
0.49  Puu Kukui, Maui
0.99  Kealakekua, Big Island


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

29  Lihue, Kauai – NE
40  Oahu Forest NWR, Oahu – ESE
29  Makapulapai, Molokai – E
38  Lanai 1, Lanai – NE
43  Kealaloloa Rg, Maui – NE
42  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

  Upper level low northwest…heavy thunderstorms far southeast

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/13/20261871040-20261871830-GOES18-ABI-HI-13-600x600.gif

Variable low clouds 

 

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

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

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

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

521am, it’s mostly clear here in upper Kula with calm winds, and a low temperature at my place of 51 degrees…with the relative humidity 79%

 

>>> Highest Temperature Sunday, July 5, 2026 – 113 near Topock, AZ
>>> Lowest Temperature Monday, July 6, 2026 – 32 degrees at T, MT

 

Interesting web blog: Mauka Showers…Hawaii’s Dry Season – Overall Trends

 

Hawaii’s Weather Highlights…as of Monday morning: A ridge of high pressure will remain anchored in place north of the Hawaiian Islands for the foreseeable future. Easterly trade winds will continue to blow across the state through the end of this week.

Shower activity will show increasing trends Tuesday, and a stronger increase from Thursday into the weekend, as deeper tropical moisture associated with a weak easterly trough moves from east to west across the state. Showers will favor windward mountain slopes of each island during the overnight to early morning hours.

Short Term Update: Scattered trade wind showers prevail along the windward and mountains. Breezy trades are also effectively driving pockets of moisture over leeward Oahu. Showers will diminish in coverage as the existing band of moisture exits to the west, and the maximum heat of the day takes its usual toll on lingering nocturnal shower activity.

Weather Commentary…as of Monday morning: High pressure will remain in place north of the state into the weekend. This will keep moderate to locally breezy east-northeasterly trade winds blowing. Brief periods of rain showers will move in on the trades, primarily focusing over windward and mountain areas during the overnight and early morning hours through Thursday.

A more noticeable change arrives Thursday night, and lasts into the weekend, as deeper moisture in association with the remnants of former Tropical Storm Douglas brings more humid conditions, and more widespread shower activity. Instability indices also show marginal potential for some isolated thunderstorm development over the Big Island interior on Friday afternoon, when some of the deepest moisture is forecast to move through. Expect muggier conditions on Friday and into the weekend, as dew points rise into the lower 70’s for most locations. Periods of showers look to continue into early next week.

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 Monday morning: A strong high pressure ridge centered north of the state will help to generate fresh to strong trades across the local waters through Tuesday, then ease slightly to fresh to locally strong for mid-week and beyond. The Small Craft Advisory, currently in effect for all local waters, has been extended through Tuesday afternoon.

A moderate, long period, south-southwest (190-200 degree) swell will continue to help boost surf along south facing shores to above seasonal averages today, but just shy of Advisory levels. This swell should gradually lose energy from Tuesday through the remainder of the week. Expect small surf for south facing shores leading into the weekend.

Surf along east facing shores will remain choppy through the week, as fresh to locally strong trades hold. Expect flat to tiny surf along north facing shores through the forecast period.

 

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.

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

 

>>> Northeast Pacific: There are no active tropical cyclone

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

 

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

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

 

>>> Northwest Pacific Ocean: 

Tropical Cyclone 09W (Bavi)…is located approximately 163 NM northwest of Andersen AFB

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

https://www.metoc.navy.mil/jtwc/products/09W_061200sair.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:  Antarctic Sea Ice Packed With Climate Cooling Compounds

Antarctica’s frozen seas are churning out chemicals that could help cool the planet – according to new research from the University of East Anglia.

A new study reveals that sea ice in the Southern Ocean contains dramatically higher levels of a key compound linked to climate regulation than the surrounding waters.

But as climate change continues to shrink and thin polar ice, the balance of this chemical factory could change – with unknown consequences.

In collaboration with the University of Pretoria and Stellenbosch University in South Africa, scientists studied a chemical called dimethylsulfoniopropionate (DMSP) – which plays a crucial role in cooling the planet.

Read More: University of East Anglia