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

 

The latest update to this website was at 1024am Sunday morning HST


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

0.49  Mount Waialeale, Kauai
0.19  Kamananui Stream, Oahu
0.12  Puu Alii, Molokai
0.00  Lanai
1.45  Puu Kukui, Maui
3.26  Honolii Stream, Big Island


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

17  Port Allen, Kauai – NE
28  Oahu Forest NWR, Oahu – SE
28  Molokai AP, Molokai – ESE
25  Lanai 1, Lanai – NE
39  Kealaloloa Rg, Maui – NNE
37  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

 Post–Tropical Cyclone 04E (Douglas) far east 

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/GEOCOLOR/20261861140-20261861930-GOES18-ABI-HI-GEOCOLOR-600x600.gif

Variable low clouds…higher clouds arriving over the islands from the west 

 

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

521am, it’s mostly clear partly cloudy here in upper Kula with calm winds, and a low temperature at my place of 53 degrees…with the relative humidity 79%

 

>>> Highest Temperature Saturday, July 4, 2026 – 112 near Tecopa, CA
>>> Lowest Temperature Sunday, July 5, 2026 – 20 degrees at Peter Sinks, UT

 

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

 

Hawaii’s Weather Highlights…as of Sunday 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. Shower activity will remain limited with brief increasing trends on Tuesday, and stronger trends Thursday through Friday, as a weak easterly trough moves from east to west across the state. Any showers that develop in this trade wind pattern will favor windward mountain slopes of each island, during the overnight to early morning hours.

Weather Commentary…as of Sunday morning: Satellite imagery shows a weak trough to the east approaching on the trade winds towards the Big Island. This weak trough will bring a brief period of increasing shower trends to the state on Tuesday. Another stronger trough further east, associated with the remnants of former tropical cyclone Douglas, will ride the trade winds into Hawaii Thursday into Friday, producing another round of showers spreading east to west across the state. Rainfall amounts with this first system will be limited due to the stable ridge aloft, the second trough will bring significant increases to humidity levels and the potential for higher rainfall amounts favoring island mountain slopes.

Otherwise, easterly trade winds will continue, as the subtropical ridge remains locked in place north of Hawaii. Subtle day to day changes to the trade wind speeds should be expected. Mostly stable weather conditions are forecast for the next 7-days, with slight increases in shower activity on Tuesday, and stronger rainfall trends Thursday through Friday, as two easterly troughs drift through the island chain. Rainfall amounts over the next seven days will remain limited due to large scale stability, with the highest amounts forecast during the Thursday to Friday time period.

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 Sunday morning: A high pressure ridge north of the Hawaiian Islands will remain nearly stationary this week, and help drive moderate to strong trades across the local waters. A Small Craft Advisory (SCA), currently in effect for the typical windy waters and channels around Maui and the Big Island will be expanded to cover all local Hawaiian waters. Moderate to locally strong trades and accompanying SCAs will continue through the week.

A new long period south-southwest swell, already being reported at the near shore buoys, will continue to fill in today. This will boost south shore surf heights to just shy of High Surf Advisory (HSA) levels through Monday. If this swell comes in much above guidance, a HSA will need to be issued. This swell will remain the primary south swell during the rest of the week, as it gradually fades beginning on Tuesday.

Surf along east facing shores will remain rough and choppy, as moderate to locally strong trades hold. Surf along north facing shores remains flat to tiny through much of the week.

 

Hawaii's Stunning Capital City Is Full Of Breathtaking Nature, Resorts & Historic Sights


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 53 NM east of Rota

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

https://www.metoc.navy.mil/jtwc/products/09W_051800sair.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:  Everyday Weather Can Increase Demand for Mental Health Support, Study Finds

New research led by the University of East Anglia (UEA) suggests even modest, short-term changes in weather can have a measurable impact on NHS mental health service demand across England.

The study, funded by the National Institute for Health and Care Research (NIHR), found fluctuations in temperature and levels of sunshine are linked to shifts in unscheduled mental health-related healthcare use – with increases during periods of hot weather and low sunshine.

In contrast, rainfall appears to have little consistent effect, suggesting specific weather patterns – rather than overall conditions – as key drivers of mental health pressures.

The findings, published in the journal Frontiers in Psychiatry, highlight the role of environmental conditions in influencing mental health–related healthcare demand.

Read More: University of East Anglia