The latest update to this website was at 810am Saturday (HST)

 

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

0.22  Lower Limahuli, Kauai
0.52  Kuaokala, Oahu
0.00  Molokai
0.00  Lanai
0.00  Maui
1.18  Pahala, Big Island

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

06  Port Allen, Kauai – NE
10  Kuaokala, Oahu – N
09  Makaena, Molokai – NE
04  Lanai 1, Lanai – NE
12  Launiupoko 2, Maui – NE 
13  Kanakaleonui, Big Island – NW

 

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

A cold front northwest…thunderstorms far southeast 

 

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

Most of the clouds in our vicinity are to the north and northeast…which are associated with a dissipating front 

 

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

A few showers locally 

 

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 here at home in upper Kula, Maui

It’s mostly clear with a few clouds here in Maui County early this morning, with a low temperature of 52 degrees at my place, with the relative humidity 74 percent. We still have some vog in the air today.

 

Weather Wit of the day: Freezing Rain – The pitter patter of little sleet

 

>>> Highest Temperature Friday, January 9, 2026 – 89 near McAllen, TX
>>> Lowest Temperature Saturday, January 10, 2026 – minus 20 at Angel Fire, NM

 

Interesting Web Blog…Mauka Showers – Rainfall from the (Sort of) Kona Low of January 4-6, 2026

 

Monthly Precipitation Summary (NWS)
Month: December 2025
Prepared: January 8, 2026

Headline: A tale of two halves of the state: Rainy Kauai and Oahu with dry Maui County and the Big Island. Plus, some interesting calendar year stats.

December began with dry and stable conditions, as light southeasterly winds and localized land and sea breezes prevailed ahead of an approaching front. That weak front stalled near Kauai on the 3rd, bringing showers embedded in southerly flow to Kauai and Niihau into the 4th. High pressure rebuilt northeast of the state as the front retreated back to the west, allowing east to east-southeasterly trade winds to strengthen, with typical scattered windward and mountain showers. Winds weakened and veered southeasterly to southerly again around the 8th and 9th as another front approached. The front brought a wetter pattern statewide through the 11th, followed by cooler northerly winds in its wake.

The most significant weather of December occurred around mid-month. A stronger front approached on the 12th, bringing breezy south to southwest winds and pre-frontal showers. The front moved through Kauai and O?ahu on the 13th and 14th before stalling and retrograding westward through the 15th. After a brief lull on the 16th, a shortwave trough destabilized the atmosphere through the 20th, leading to another extended period of steady rainfall over Kauai and O?ahu. Combined totals over the week were around 3 to 6 inches on Kauai (locally up to 7 inches) and 4 to 8 inches on Oahu, with isolated amounts near 10 to 14 inches along the Koolau Range and northern Waianae Mountains. Rainfall rates were mostly moderate though, with mainly urban roadway flooding impacts, many instances of which were exacerbated by poor drainage maintenance. Two water evacuations occurred on windward O?ahu (Ahuimanu and Kaneohe), along with one water rescue in the Kalihi area of Honolulu. Maui County and the Big Island were largely spared from this event, remaining under drier southeast flow.

Trade winds gradually returned from the 21st to the 23rd, bringing more stable conditions. Moisture from a remnant front was pushed southward during this period, enhancing showers along windward slopes, with rainfall totals around 1 to 2 inches on most islands.

Drier and locally breezy trades prevailed through Christmas Eve and Christmas Day, followed by weakening winds and a shift back toward an east-southeasterly direction ahead of another front. The month ended with moderate trades and generally dry conditions. A brief surge of moisture on the morning of the 30th slightly enhanced windward showers, but no significant impacts were reported.

 

Hawaii’s Broad Brush Weather Overview:  A dying frontal system north and northeast of the island chain will maintain light winds and mostly dry weather through Sunday. Sea breeze development during the afternoon hours may help generate a few spotty showers over the interior areas of the islands.

By late Sunday, a frontal system will approach Kauai from the northwest, then spread down the island chain during the day on Monday. A line of steady rain will accompany the front, but a flooding threat appears low. Behind the front, expect breezy north winds and a cooler and dryer airmass. Another cold front looks to affect the island by next Thursday.

Hawaii’s Weather Details: A weak trough of low pressure continues to linger north of the state, and has allowed for some clouds and some isolated showers overnight. Atmospheric soundings from Lihue and Hilo continue to show above normal precipitable water values at around 1.5 inches, with the bulk of the moisture located in the lower levels. With the low level moisture in place today, we should see some scattered showers develop by mid-day due to the sea breezes.

Most of this shower activity should occur across interior and mountain areas, and rainfall intensity should remain light to moderate due to an upper level ridge building across the state today. For Sunday, weather conditions will be somewhat similar with sea breezes developing once again, but generally shower activity will be less due to drier lower levels.

Starting Sunday evening, a cold front will begin to approach Kauai and we could see showers increasing ahead of the front, with southerly winds also gradually strengthening. Models are in very good agreement on the timing with the front crossing Kauai and Oahu Monday morning, then continuing down the island chain through Maui County in the afternoon. A band of moderate showers will accompany the front, but the threat for flash flooding appears low.

By Monday night, guidance indicates the front stalling and weakening near the Big Island. Immediately behind the front, there will be quite a noticeable airmass change with breezy north winds bringing in cooler and dryer weather, with low temperatures dropping down into the mid 60’s near sea level. Tuesday morning will start off chilly by Hawaii standards, but should be a fair weather day, with plenty of sunshine across the smaller islands. Some lingering moisture will be possible across windward Big Island on Tuesday.

Starting Wednesday, both the GFS and ECMWF models bring yet another cold front down to approach the islands from the northwest. This front looks to be stronger than the first front with breezy to strong kona winds developing ahead of the front. Both models agree on timing with the front, moving it quickly down the island chain Wednesday night through Thursday night. With the front being stronger, we could see periods of moderate to locally heavy showers along the frontal boundary. Once again, a cooler and dryer airmass will follow behind the front, with high pressure building back in on Friday into next weekend.

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: A weak high pressure ridge will remain nearly stationary over the central waters, as a front dissipates over northern waters. Another cold front will sweep from west to east down the island chain on Monday, stalling near the Big Island by Monday night. An even stronger cold front will quickly move through the islands, spreading strong to near gale force winds across the northwestern coastal waters later next week from Wednesday into Thursday. A Small Craft Advisory was issued for Hawaiian Coastal Waters exposed to the large northwest swell…these elevated seas are for waters and channels exposed to this rising northwest swell.

A large northwest swell building through Hawaiian coastal waters will increase surf heights above advisory thresholds. A High Surf Advisory (HSA) was issued for exposed north and west facing shores. Offshore buoy reports show quickly rising seas from this next large northwest (310-330 degree) swell with advisory level surf on the way. Surf heights will swiftly increase for all islands exposed to this rising northwest swell. Swell energy will then hold above HSA thresholds into Monday, as another much larger overlapping northwest (320-330 degree) swell swiftly builds surf to High Surf Warning levels potentially from Monday through Tuesday. Yet another extra large swell will build into the islands by late Thursday, potentially producing another round of warning level surf along exposed north and west facing shores.

Surf along east facing shores will remain small through this weekend as winds over and upwind of Hawaii remain weak. Some increase in east shore surf is possible early next week, as a cold front moves down the island chain. Along south shores, surf will remain very small through the forecast period.

 

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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: 

Tropical Cyclone 13P (Koji) is located approximately 140 NM east-southeast of Cairns, Australia

https://www.metoc.navy.mil/jtwc/products/sh1326.gif

https://www.metoc.navy.mil/jtwc/products/13P_101200sair.jpg

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:  Exposure to Natural Light Improves Metabolic Health

An international team has provided the first direct evidence of the beneficial effects of scheduled daylight as compared to artificial light in people with type 2 diabetes.

Metabolic diseases have reached epidemic proportions in our society, driven by a sedentary lifestyle coupled with circadian misalignment – a desynchrony between our intrinsic biological clocks and environmental signals. Furthermore, we spend almost 90% of our time indoors, with a very limited exposure to natural daylight.

To investigate the specific role of daylight in human metabolism, particularly in glycaemic control, researchers from the University of Geneva (UNIGE), the University Hospitals of Geneva (HUG), Maastricht University, and the German Diabetes Center (DDZ) conducted a controlled study with thirteen volunteers with type 2 diabetes.

When exposed to natural light, participants exhibited more stable blood glucose levels and an overall improvement in their metabolic profile. These results, published in the journal Cell Metabolism, provide the first evidence of the beneficial impact of natural light on people with type 2 diabetes.

As in all living beings, human physiological processes are subject to the influence of the circadian rhythm governed by the alternation of day and night. This is controlled by a central clock in the brain, which synchronizes the clocks in peripheral organs such as the liver and skeletal muscles.

“It has been known for several years that the disruption of circadian rhythms plays a major role in the development of metabolic disorders that affect an increasing proportion of the Western population,” notes Charna Dibner, associate professor at the UNIGE Faculty of Medicine and at HUG, who co-directed this work with Joris Hoeks, associate professor at Maastricht University, and Patrick Schrauwen, professor at the DDZ.

Read More: Université de Genève