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


The latest update to this website was 722pm Wednesday HST


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

0.97  Hanamaulu, Kauai
2.09  Luluku, Oahu
0.00  Molokai
0.00  Lanai
0.00  Maui
1.33  South Point, Big Island


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

09  Lawai, Kauai – NE
09  Oahu Forest NWR, Oahu – ESE
12  Makapulapai, Molokai – SSE
14  Lanai 1, Lanai – NE
12  Launiupoko 2, Maui – NE
14  South Point, Big Island – NE


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

Cold front northwest…thunderstorms far south 

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/GEOCOLOR/20261122040-20261130430-GOES18-ABI-HI-GEOCOLOR-600x600.gif

 Mostly lower level clouds across the island chain

 

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 

 

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 Wednesday comments:  I’m here in a wonderful vacation rental at The Sea Ranch, Sonoma County, California with my friend Bob, continuing on in my working vacation.

1219pm Hawaii time, Bob and I drove over to the Pickleball courts here at the Ranch, and played 4-games, joining in with the local folks who were playing…which was the first time I’ve played in about a month. I pulled my hamstring playing Pickleball in Makawao, and have been giving it time to properly heal, and fortunately I had no pain today.

235pm Hawaii time, We just returned from a 2-miles walk from our rental down to the ocean side. We saw one person the whole way, as it seems so deserted, while the quietude is so present.

724pm, we had a nice pasta dinner with a glass of Cabernet Sauvignon, and after took a walk out into the dark night, where the bright moon was beaming down, although far from full.

 

>>> Highest Temperature Wednesday, April 22, 2026 – 99 degrees at Grande Village, TX
>>> Lowest Temperature Wednesday, April 22, 2026 – 14 degrees at Mount Washington, NH

 

Hawaii’s Broad Brush Weather Overview…as of Wednesday afternoon:  The recent light land- and sea-breeze pattern will give way to trades tonight, and a classic trade wind pattern is expected well into next week. We will see scattered mainly windward and mountain showers, with the typical Kona afternoon showers as well. Wind speeds are forecast to be moderate.

Weather Details for the Hawaiian Islands…as of Wednesday afternoon: Showers formed over the peaks on Big Island, and a single lightning strike was observed over Mauna Loa via the lightning detection network. Showers are forecast to continue into the early evening as they generally develop progressively downhill. Scattered Kona showers and isolated Kauai showers are forecast as well.

An upper level ridge will evolve with time to our west, and will keep NW to N flow aloft through Monday night. This will result in a series of surface highs to our north, and a steady stream of trade winds for the region. The latest GFS model brings a weak upper level low close to the state Tuesday night into next Wednesday, but GFS models do not presently favor this solution (nor does the ECMWF. Therefore, it has a very low probability of coming to pass.

For now, the forecast includes typical patterns of precipitation and winds for a spring trade wind scenario. This means mainly windward and mountain showers, only occasionally spilling over to leeward areas. After all the rain and flooding from March into early April, we appear to be headed into a prolonged fairly dry period.


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 Wednesday:  Local observations are showing moderate trade winds making their way into select areas, especially over the eastern half of the state. As a ridge of high pressure continues to build north of the state, we should see the trade winds fill in a bit more into Thursday. Moderate trade winds are expected for the day Thursday becoming moderate to fresh trade winds Thursday evening into Friday. Moderate to fresh trades are expected to persist through the weekend, as another high passes north of the state. Brief periods of locally strong winds will be possible over the windier areas around Maui County and the Big Island during this time.

A moderate size, medium period northwest swell has peaked, and will gradually decline over the next few days. A pair of gale lows in the North Pacific will send a series of small northwest to north-northwest swells Friday night into the weekend into the first half of next week. These swells should help maintain near average to slightly below average surf along north facing shores into next week.

A moderate size, medium period north northeast quickly filled in last night and has peaked. This swell has been producing advisory level surf along east facing shores, and above average surf for select west facing shores of Maui and the Big Island near Kua Bay. This swell will slowly decline through the remainder of the week. Strengthening trades later this week will support closer to seasonal average surf for eastern exposures this weekend.

Small background energy from former Super Typhoon Sinlaku will continue to linger over the next few days and fade out by the weekend. A small southwest swell from the Tasman Sea is expected over the weekend. No significant south swells are expected through the first half of next week.

 


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

>>> Caribbean Sea: There are no active tropical cyclones

>>> Gulf of Mexico: There are no active tropical cyclones

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

 

>>> Eastern Pacific: There are no active tropical cyclones

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

>>> 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 and South Indian Oceans / Arabian Sea: There are no active tropical cyclones



Interesting:  Handle With Care: Soft Robot Gripper Picks Ripe Fruit Without Bruising

When assessing the ripeness of fruit, sight and smell can tell you a lot, but the best indicator is often how the fruit feels.

Cornell researchers used stretchable fiber-optic sensors to create a soft robot gripper that can predict the ripeness of strawberries by touch, then gently twist them off their branch or vine without causing any damage.

The technology, developed in the lab of Rob Shepherd, the John F. Carr Professor of Mechanical Engineering in the Cornell Duffield College of Engineering, could lead to more resilient and ecological food production and increase the availability of fruit species that are difficult to cultivate.

Read more at: Cornell University

Cornell researchers used stretchable fiber-optic sensors to create a soft robot gripper that can predict the ripeness of strawberries by touch.