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

 

The latest update to this website was at 515pm Thursday evening HST


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

1.14  Mount Waialeale, Kauai
0.93  Kalawahine, Oahu
0.44  Puu Alii, Molokai
0.14  Lanai AP, Lanai
1.37  Puu Kukui, Maui
0.87  Kealakekua, Big Island


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

20  Nawiliwili, Kauai – NE
36  Kuaokala, Oahu – NE
30  Molokai AP, Molokai – ENE 
25  Lanai 1, Lanai – NE
48  Na Kula, Maui – ESE
30  Upolu AP, Big Island – E 


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. 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

 Tropical Cyclone 01E (Amanda) in the eastern Pacific (it won’t be a threat to HI)

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/GEOCOLOR/20261551840-20261560230-GOES18-ABI-HI-GEOCOLOR-600x600.gif

Variable low clouds…high clouds locally

 

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 the current Watches, Warnings and Advisories noted above




~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Thursday comments:  I’m at home here in upper Kula, Maui, Hawaii

It’s mostly clear with some clouds along the windward sides here in Maui County, with calm winds at my place, and with a low of 51.5 degrees and the relative humidity is 84%

115pm, it’s cloudy here in upper Kula, with off and on misty drizzle with calm winds, and the relative humidity 70%

5pm, it’s cloudy and raining here in upper Kula, which is lovely!


>>> Highest Temperature Thursday, June 4, 2026 – 115 degrees at Death Valley, CA
>>> Lowest Temperature Thursday, June 4, 2026 – 27 degrees near Silver Lake, OR

 

Hawaii’s Broad Brush Weather Overview…as of Thursday evening: Moderate to breezy trade winds will dominate the local weather pattern for the next week. Showers will generally favor the typical windward and mountain locations, with minor day-to-day fluctuations in moisture.

Weather Details for the Hawaiian Islands…as of Thursday evening: A batch of moisture advancing through the island chain has rather efficiently produced numerous showers windward and mountains, even during the unfavorable peak heating period and beneath building subsidence. Breezy trades will deliver some of the taller showers to leeward areas through late afternoon intp the early evening. Satellite trends suggest this activity will shift west of the area by late this evening. Very little change going forward as a seasonally stable and benign trade wind pattern persists well into 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 Environmental Conditions…as of Thursday evening: Fresh to strong easterly trades will prevail as high pressure remains anchored far northeast of the islands through the weekend. A Small Craft Advisory (SCA) for the typically windier channels and waters around Maui County and the Big Island remains in effect through Saturday and will likely be extended through at least Monday. Trades may ease slightly Tuesday as high pressure shifts away to the northeast.

A moderate to large south-southwest swell will maintain surf above the High Surf Advisory (HSA) threshold along south-facing shores through this evening before continuing to gradually decline, allowing surf heights to drop below HSA thresholds late tonight. Nearshore buoys continue to observe this swell around 15 seconds, and offshore buoy 51002 hasn`t dropped much, maintaining swell around 15 seconds.

Overnight, surf is expected to fall to moderate levels and will continue to gradually fade through Sunday. A small long-period south-southwest swell is expected to arrive late Sunday and peak early next week. Along north-facing shores, a small medium-period north swell will build tonight and is forecast to peak early Friday, then ease over the weekend.

A tiny west-northwest swell is possible early next week. Surf along east-facing shores will gradually build to around seasonal average by Friday, though some areas exposed to wrapping north swell could be slightly larger tonight and Friday. Near average east shore surf will prevail this weekend into early next week.

 

Small Waves On Sandy Island Beach


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)

 

>>> Eastern Pacific: 

Tropical Cyclone 01E (Amanda)

SMALL AMANDA CONTINUES MOVING WEST-NORTHWESTWARD OVER THE OPEN EAST PACIFIC

According to the NHC advisory number 10

Amanda is moving toward the west-northwest near 10 mph and this motion is expected to continue into Friday. A turn towards the west and then southwest at a slower forecast speed is anticipated by this weekend.

Maximum sustained winds remain near 45 mph with higher gusts. Little change in strength is forecast during the next day or so followed by gradual weakening trend this weekend. Amanda is forecast to become a post-tropical remnant low by early next week.

Tropical-storm-force winds extend outward up to 45 miles from the center.

 

>>> Offshore Southern and Southwestern Mexico:

A trough of low pressure located well offshore of southwestern Mexico is producing a large area of disorganized showers and thunderstorms. Environmental conditions appear conducive for development of this system, and a tropical depression is likely to form during the next several days while it moves slowly northward or north-northeastward near the coast of southern Mexico.

* Formation chance through 48 hours…low…30 percent
* Formation chance through 7 days…high…80 percent

 

>>> Offshore of Central America:

A trough of low pressure offshore of Central America is producing some disorganized shower and thunderstorm activity. Environmental conditions appear conducive for development of this system, and a tropical depression is likely to form during the next several days while it moves slowly northward.

* Formation chance through 48 hours…low…20 percent
* Formation chance through 7 days…high…70 percent

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:  There are no active tropical cyclones

>>> 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:  Rising Seas Could ‘Drown’ Mangroves and Release Carbon

Mangroves could store less carbon – and even begin releasing it – as sea levels rise, new research suggests.

Mangroves are made up of salt-tolerant plants that grow in coastal areas. They cover less than 1% of Earth’s surface but store about 15% of all ocean carbon, most of it in their soils. This ability to store carbon makes them important in efforts to limit climate change.

Previous research has suggested rising seas could increase carbon storage in mangroves, but the new study challenges this.

Read More at: University of Exeter

Mangroves – like this one at Cispata Bay – are efficient carbon sinks, but they may drown and lose their ability to store carbon under sea-level rise.