The latest update to this website was at 921am Monday (HST)

 

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

0.56  Mount Waialeale, Kauai
0.63  Lyon, Oahu
0.35  Puu Alii, Molokai
0.01  Lanai City, Lanai
0.57  Puu Kukui, Maui
0.75  Glenwood, Big Island

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

14  Lawai, Kauai
25  Oahu Forest NWR, Oahu
23  Makapulapai, Molokai
27  Lanai 1, Lanai 
30  Honoapiilani, Maui
32  Puuloa, Big Island

 

Hawaii’s Mountains – Here’s a link to the live webcams on the summit of our tallest mountain Mauna Kea (~13,800 feet high) on the Big Island of Hawaii, and atop the Haleakala Crater (~10,023 feet) 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

Cold front northwest…thunderstorms in the deeper tropics

 

https://www.weather.gov/images/hfo/satellite/Hawaii_IR_loop.gif

 There are high and middle level clouds in the general vicinity, although they aren’t over the Hawaiian Islands at the time of this writing

 

 

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

Showers locally…very few 

 

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 here at home through the winter in upper Kula, Maui

It’s clear here in Maui County early this morning…with a chilly low temperature of 49 degrees at my place, with the relative humidity 75 percent.

I’m heading down to Makawao for a session of Pickleball, and will be back early this afternoon with more weather updates.

Weather Wit of the day: Rain Free – A forecast meaning, “If you get any, it won’t cost you anything”

>>> Highest Temperature Sunday, December 7, 2025 – 91 at McAllen, Texas
>>> Lowest Temperature Monday, December 8, 2025 – minus 23 near Forest Center, MN

Mauka Showers web blog…The Central North Pacific Hurricane Season, 2025 Edition

Incredible Lava flow Fountain on the Big Island – December 6th

 

Hawaii’s Broad Brush Weather Overview: A high pressure ridge just north of the Hawaiian Islands will continue to weaken in advance of a cold front approaching the islands from the northwest. Moderate trade winds will weaken and transition to light southeasterly to southerly winds across the region. The cold front continues to move into the western half of the state from Wednesday to Thursday.

Expect cloudy skies and showers along the frontal band as it moves over each island, with moderate to breezy cool northerly winds blowing in behind the frontal boundary. Light east to southeast winds will continue through the rest of the week, as yet another cold front moves into the Hawaii region by the upcoming weekend.

Hawaii’s Weather Details: Looking satellite imagery we see a fairly stable pattern, under the influence of a weak upper level ridge. A large band of cirrus clouds associated with an approaching cold front is currently far northwest of Hawaii. This cold front will bring increasing clouds and showers to the western Hawaiian Islands from late Wednesday through Thursday.

Expect one more day of easterly trade winds with hybrid onshore sea breezes during the daylight hours along western terrain sheltered slopes of each island. Expect brief passing showers will remain in the short range forecast today, favoring windward and mountain areas. Trade winds will diminish on Tuesday with lighter southeasterly to southerly winds developing.

By Tuesday the approaching cold front will continue to break down and drive the large scale ridge directly over the islands, producing light southeasterly to southerly winds across the island chain. A combination of increasing stable subsidence and southeasterly cloud steering winds, will produce fairly dry conditions across the area through Tuesday night.

From Wednesday afternoon through Wednesday night the cold front will drift over the western islands of Kauai and Niihau, reaching the islands of Oahu and Molokai by Thursday morning. Expect increasing clouds and numerous showers along the frontal cloud band as it drifts through each island.

Moderate to breezy cool northerly winds will blow in as the front passes through each island. The latest consensus of models shows the forward motion of the frontal cloud band stalling over the islands in Maui County from Thursday night into Friday morning, then the band will diminish and lift northward, as high pressure builds in to the north of the state.

Friday through Saturday, large scale winds will remain light and variable during this time period, as a weak high pressure system, sandwiched between two cold frontal systems passes just north. The next weak cold frontal system will approach the state from the northwest late Saturday into Sunday. The latest long range model guidance shows large inconsistencies on when or if this frontal cloud band will bring another round of rain showers to the western islands.

For now the western islands of Kauai and Niihau seem to hold the best chances for a rainfall event, possibly starting by Saturday night. Stay tuned for updates to the upcoming weekend’s weather conditions, as the forecast for the western Hawaiian Islands will likely evolve over time.

Fire weather: Conditions remain below critical fire thresholds through the week as winds remain light and RH elevated. Temperature inversion heights over Maui and the Big Island will range from 5,500 to 6,500 feet for the time being.

Here’s a near real-time Wind Profile of the Pacific Ocean – along with a Closer View of the islands / Vog map animation / 8-Day Precipitation model

https://www.weather.gov/images/hfo/graphics/npac.gif 

 

Hawaii’s Marine Environment: An area of high pressure will remain north of the Hawaiian islands, producing gentle to moderate easterly winds, then decrease and veer more southeasterly to southerly Tuesday to Wednesday, as the next cold front moves into the area from the northwest. This front may move into the western Hawaiian islands late Wednesday into Thursday, then diminish by Friday.

The current medium period, north-northwest (340-350 degree) swell will continue to slowly fade, bringing surf back down to below average levels for this time of year. The next two long to medium-period overlapping northwest (310-320 degree) swells will arrive, boosting surf along north and west facing shores and possibly reaching advisory levels by Wednesday.

Choppy east shore surf will remain small, then decline further over the next few days as trades gradually ease. Expect minimal background energy for south facing shores, keeping south shore surf heights just above flat levels.

 



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclones

Caribbean Sea:  There are no active tropical cyclones

Gulf of America:  There are no active tropical cyclones

 

Northeastern Pacific:  There are no active tropical cyclones

North Central Pacific: There are no active tropical cyclones

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

 

Northwest Pacific Ocean:  There are no active tropical cyclones

Southwest Pacific Ocean:  There are no active tropical cyclones

North and South Indian Ocean:  There are no active tropical cyclones

South Indian Ocean: There are no active tropical cyclones

Arabian Sea: There are no active tropical cyclones

Here’s a link to the Joint Typhoon Warning Center (JTWC)

 

>>> Here’s a link to the Pacific Disaster Center’s (PDC Global) Weather Wall website

 

Interesting:  UAlbany Atmospheric Scientist Proposes Innovative Method to Reduce Aviation’s Climate Impact

If you look up at the sky on a clear day, chances are you’ll notice thin, white clouds following behind airplanes— also known as contrails.

The formation of these wispy ice clouds is a complex process that involves the mixing of hot exhaust gases with cold air. Depending on the atmospheric conditions, contrail ice particles can last for a short time or persist for several hours or longer. Before dissipating, they trap heat that would otherwise be released into space, contributing to climate change.

A study that looked at aviation’s contribution to climate change between 2000 and 2018 concluded that contrails create 57 percent of the industry’s warming impact, significantly more than the CO2 emissions from burning fuel.

Fangqun Yu, a senior research faculty at the University at Albany’s Atmospheric Sciences Research Center, has developed an advanced model for simulating contrail formation and published several scientific papers on the formation and properties of contrail ice particles.

Read More: University at Albany, SUNY