The latest update to this website was at 528pm Thursday (HST)

 

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

0.14  Mount Waialeale, Kauai
0.32  Kahana, Oahu
0.39  Honolimaloo, Molokai
0.00  Lanai
0.10  West Wailuaiki, Maui
0.18  Lower Kahuku, Big Island

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

14  Port Allen, Kauai
18  Kaneohe, Oahu
27  Makapulapai, Molokai
28  Lanai 1, Lanai 
38  Na Kula, Maui
29  Pali 2, Big Island

 

Hawaii’s MountainsHere’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

 Low northwest with it’s cold front moving away from Kauai…thunderstorms well southeast 

 

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

 There are some well developed cumulus clouds near Kauai…otherwise, just the ordinary cumulus in our vicinity

 

 

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…a few are heavy 

 

Please open this link to see details on any current Watches, Warnings and Advisories noted above

 

~~~ Hawaii Weather Narrative ~~~

 

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

It’s mostly clear here in Maui County early this morning…with a low temperature of 51.5 degrees at my place.

The large full moon is sinking down into the western horizon early this morning…a beautiful sight.

I played Pickleball this morning in Makawao, and as is always the case, I really enjoyed the games!

515pm, I see some high cirrus clouds on the western horizon as we head gradually towards sunset, which may give us some color…and there’s volcanic haze back in the air again.

Weather Wit of the day: I love those recorded forecasts. I just heard one that said “A hurricane is expected with winds of one hundred and forty miles per hour, tides six feet above normal and ten inches of rain! Have a nice day.”

>>> Highest Temperature Thursday, December 4, 2025 – 88 near Ochopee, Florida
>>> Lowest Temperature Thursday, December 4, 2025 – minus 21 near Skibo, MN

Monthly Precipitation Summary

Month: November 2025

Prepared: December 3, 2025

Headline: Significant rainfall on Kauai, Maui, and the Big Island from a couple of notable events, but continued dryness for most leeward areas.

The month opened with dry and breezy conditions, though winds weakened and shifted slightly east-southeast as a front approached from the northwest. An upper low near the islands helped enhance windward and mountain showers through the first weekend, especially across the western islands and parts of the South Kohala District on the Big Island. The most notable rainfall occurred on the northern coast of Kauai on the 2nd, where Flood Advisories were issued as rates reached 1 to 2 inches per hour for a large portion of the day. The NWS Hanalei gauge measured around 10 inches in eight hours (11.2 inches in 24 hours), but the area, surprisingly, experienced no significant impacts. Tropical moisture also brushed the southern Big Island on the 3rd, producing heavier showers along windward slopes. A quieter stretch followed for the next few days, as moderate to locally breezy trades returned and conditions dried out. Only minimal windward showers developed, while a departing upper low spread high clouds over the state.

A cold front brought a more significant rainfall event on the 8th and 9th. Shallow moisture and low-level northeasterly flow favored windward and mountain areas for rainfall, where two-day totals commonly reached 1 to 3 inches. A few standout locations on each island recorded 5 to 9 inches, including West Wailuaiki on Maui and Pu?u Ali?i on Molokai. No flooding impacts were reported, and breezy northeast trades filled in behind the front. Typical breezy to locally strong trades dominated the 10th through the 14th, with lingering post-frontal moisture sustaining frequent windward showers. Maui County and the Big Island saw repeated daily rainfall totals of 1 to 3 inches, while Puu Kukui on Maui recorded isolated maxima over 7 inches on the 12th and 13th.

The middle of the month turned noticeably drier as moderate trades prevailed from the 15th to the 17th. A more humid and unsettled pattern returned from the 18th to the 20th when an upper low southwest of the islands pulled deep tropical moisture northward. With precipitable water values near 2 inches, enhanced showers developed mainly across the eastern half of the state. Breezy to locally windy trades focused the heaviest rainfall along windward slopes of Maui and the Big Island, where 24-hour totals generally reached 1 to 3 inches.

Conditions dried out and stabilized to close out the month, resulting in reduced shower activity with rainfall largely confined to scattered windward and mountain showers and otherwise quiet conditions. Trades also eased from moderate-breezy to light-moderate and shifted more out of the east-southeast as fronts passed north of the islands.

 

Hawaii’s Broad Brush Weather Overview: Breezy east-southeast winds will weaken and back to easterly during the weekend. Limited clouds and showers will focus over windward and mountain areas during this time.

Hawaii’s Weather Details: Convergence and moisture pooling along a cold front supports ongoing convection west of Kauai. This convection will persist and then dissipate tonight, as the supporting upper trough lifts to the north. This then allows moderate to breezy east-southeast winds to carry the remaining frontal moisture west of the area, leaving the islands mostly dry, including Kauai. The only weather effect of the front locally will be increased cirrus gracing western skies.

A batch of moisture embedded within the tropical easterlies is observed on visible imagery to the east. Modeling indicates this moisture advances toward the area within prevailing low/mid level wind flow, focusing showers chiefly over favored slopes of the Big Island and Windward Haleakala on Maui tonight through Friday. This moisture may supply the flow with enough moisture to support a few showers across both windward and leeward portions of the smaller islands during this time, but no organized or heavy rainfall is anticipated.

Another batch of dry mid-level air brings reinforcing stability over the weekend, as the Pacific Jet stream extends eastward leaving the islands in a region of large scale subsidence. Dry, moderate trades continue into next week.

Fire weather: Critical fire weather conditions are not expected this week. Light winds will give way to mainly moderate east to southeast winds, but winds will be below the critical fire weather threshold. Humidity will be near seasonal normal, and the inversion will lift slightly from its current range of around 7,500 feet.

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 stationary front west of Kauai will gradually weaken to a trough and retrograde back westward, away from the islands. Meanwhile, a ridge of surface high pressure building northeast of the state will allow for moderate to locally strong east or east southeast background flow through early Saturday. A Small Craft Advisory (SCA) has been issued until 6am Saturday morning for most of the marine waters surrounding the Big Island and Maui County. In addition, a moderate to large northwest swell will build slowly into tonight, and bump combined seas up for exposed waters. Another SCA will likely be issued for tonight through Friday to account for these rough seas.

The current moderate, medium period, west-northwest swell (300-320 degree) has held steady, as noted on the Waimea Bay buoy. A reinforcing, slightly larger and slightly longer period, northwest swell (320-330) is forecast to arrive, then peak tonight into early Friday, then ease into the weekend. This second pulse may bump surf up just enough to breach High Surf Advisory (HSA) criteria along exposed north and west facing beaches during its peak. The residual small to moderate northwest swell is expected to veer to the north-northwest through the remainder of the weekend into early next week, and bring below average surf for December for north and west facing shores.

East shore surf will remain small due to weak winds, then become larger and choppier through Friday, as trade winds increase. Expect minimal background energy for south facing shores through much of the week.

Peak monthly tides combined with water levels that are running higher than predicted could lead to minor flooding along the shoreline and in low-lying coastal areas. Coastal flooding is possible around the daily peak tide, which will be during the early morning hours. This could also magnify effects of the expected high surf on coastal areas along north and west facing shores around the same time frame.



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: 

Tropical Cyclone 06P is located approximately 216 NM north of Papeete, Tahiti 

https://www.metoc.navy.mil/jtwc/products/sh0626.gif

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:  Student Expands Research on Microplastics in Hawaiian Waters

After graduating from Kalaheo High School, Hope Kanoa knew she wanted to focus on Hawaii’s water resources while attending the University of Hawaii at M?noa. She found a fitting option in the School of Ocean and Earth Science and Technology (SOEST), which offers a Bachelor of Arts in Environmental Earth Science.

As an undergraduate student, Kanoa conducted a research project with Xiaolong (Leo) Geng, assistant professor in the SOEST Department of Earth Sciences, to measure the concentration of microplastic in coastal environments around Oahu. After working on this project together, Geng extended an invitation for Kanoa to join his research group as a master’s student.

“Its incredible to see how connected different reservoirs of water are in Hawaii,” Kanoa said. “I’m very interested in addressing the challenge of modeling how this contaminant is transported on and in our islands.”

“Hope has demonstrated an exceptional ability to work across disciplines, connecting fieldwork, laboratory analysis, and environmental science outreach,” Geng shared. “She is never afraid to try new approaches, and her willingness to step outside her comfort zone has been a defining strength in her growth as a researcher.”

Read More: University of Hawaii

Image: Kanoa doing field work on Maui with colleagues.