Glenn James
Hawaii Weather Today
Founder and maintainer for 30 years 

 

The latest update to this website was at 940am Wednesday (HST)

 

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

1.18  Mount Waialeale, Kauai
0.20  Kaala, Oahu
1.62  Puu Alii, Molokai
0.00  Lanai
0.96  Puu Kukui, Maui
1.57  Kealakekua, Big Island

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

27  Lihue, Kauai – NE
20  Oahu Forest NWR, Oahu – ENE
20  Makapulapai, Molokai – ENE
27  Lanai 1,  Lanai – NE
33  Kealaloloa Rg, Maui – NE
33  Puuloa, Big Island – NE

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

The high clouds moving by to the south…a cold front northwest

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/GEOCOLOR/20260910950-20260911830-GOES18-ABI-HI-GEOCOLOR-600x600.gif

A few low clouds arriving along the windward sides / higher level clouds moving by to the south

 

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 the current Watches, Warnings and Advisories noted above

~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Wednesday comments:  I’m here in Corte Madera, Marin County, California on a working vacation.

5am Hawaii time, I’m here at my friend Linda’s house. It’s cloudy, with a 55 degree low. BTW, when I say Hawaii time, it is 3-hours later here in California.

505am, I just got word that heavy snow was falling all the way from the summit of the Haleakala Crater…down to sea level in Kihei and Wailea, Maui.

922am Hawaii time, there are reports that folks are skiing down from Ulupalakua to Makena…while there are ice skaters doing there thing on the nearby frozen ocean!

 

>>> Highest Temperature Tuesday, March 31, 2026 – 100 degrees at Rio Grande Village, TX
>>> Lowest Temperature Wednesday, April 1, 2026 – 2 degrees near Forest Center, MN

 

Hawaii’s Broad Brush Weather Overview…as of 418am Wednesday: Moderate to locally breezy trades will taper off today and tomorrow, becoming light and variable by this weekend. Shower activity will be kept to a minimum, with just a few windward and mountain clouds and showers through the end of the week. Next week, models begin to hint at a cold front developing, which may bring precipitation to the Hawaiian islands.

Weather Details for the Hawaiian Islands…as of 418am Wednesday: A quasi-stationary upper-level low persists just northeast of the Hawaiian Islands, while a broad 1029 millibar surface high remains centered just north of the state. As these features meander eastward and weaken, trades at the local level will begin to ease across the region.

Moisture content continues to be sparse, with model depicted precipitable water anomalies portraying values two to three standard deviations below average through early next week. This remains the case due to a much cooler and drier airmass which has more or less engulfed the Hawaiian Islands.

Precipitable water from the latest atmospheric soundings from Hilo and Lihue, show 0.95 and 0.83 inches, respectively, so any instability associated with the upper-level low and orographic lifting may still bring a few windward showers. Even then, rainfall amounts will be limited across the state.

Model guidance depicts the aforementioned surface high will meander eastward toward the mainland as it weakens, opening the doors to another surface trough developing just east of Hawaii. The trough may funnel some small batches of moisture into windward and mountain areas by way of the trades, but ultimately will remain limited with the lack of moisture content. Furthermore, with the high well out of the area by this time, trades will weaken even more, eventually becoming light and variable by this weekend.

Within the longer range forecast, models have begun to hint on the development of a cold front, that will approach from the west during the early part of next week. The local winds will veer southeasterly, then southward in response, resulting in a pre-frontal convergence band pulling tropical moisture northward across the Hawaiian Islands. There remains considerable model discrepancies in the long-range models within this scenario, especially in the sense of timing, location, and strength.

 

Here’s a near real-time Wind Profile of the Pacific Ocean – Zoom Earth – 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…as of 418am Wednesday: High pressure north of Hawaii will shift eastward through the week, causing trade winds to diminish. A Small Craft Advisory is in effect for the typically windier waters around Maui County and the Big Island.

Moderate north and east-facing shore surf continues to be generated by a short period, north-northeast (020 degree) swell, which will gradually diminish as it veers northeast. Shores better exposed to this NNE swell will experience decent wind wave chop, generated by solid moderate trades.

Surf along west-facing shores will remain dominated by wrap around from the north-northeasterly swell, and will gradually diminish through the week. The next small, medium-period northwest and west-northwest swells arrive this weekend, to bring a small rise in surf for west-facing shores. Along south-facing shores, expect continued impulses to sustain small surf through the week.

 



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

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

 

Northeastern Pacific:  There are no active tropical cyclones

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

North Central Pacific: There are no active tropical cyclones

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 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:  B.C.’s Burn Scars into the Next Wildfire

After a wildfire, the flames may fade, but the danger does not. A new study by UBC researchers reveals that burned landscapes remain vulnerable for years, with large areas still bare and at risk of invasion by fast-growing, fire-prone grasses.

The research, one of the largest vegetation trajectory studies in the world, monitored landscapes two years after major wildfires in interior B.C. While some native plants returned, recovery was slower and more fragile than expected.

One of the most pressing concerns is invasive grasses, which germinate early in spring, dry out during the hottest months, and act as dry runways that spread flames at highway speed—a dynamic that contributed to the 2023 Lahaina fire in Maui and is increasingly likely in B.C.’s Interior.

Read More: University of British Columbia