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

 

The latest update to this website was at 910am Friday morning HST


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

0.78  N Wailua Ditch, Kauai
0.58  Tunnel RG, Oahu
0.05  Puu Alii, Molokai
0.01  Lanai City, Lanai
0.13  West Wailuaiki, Maui
3.34  Honolii Stream, Big Island


The following numbers represent the strongest wind gusts (mph) Friday morning: 

13  Lawai, Kauai – ENE
17  Oahu Forest NWR, Oahu – ENE
16  Makaena, Molokai – NE
17  Lanai 1, Lanai – NE
21  Kealaloloa Rg, Maui – NNE
21  Kealakomo, 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

 

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Cold front far northwest…thunderstorm far south

 

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Variable low clouds…high cirrus in the vicinity as well

 

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

Localized showers 

 

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




~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Aloha Friday comments:  I’m at home here in upper Kula, Maui, Hawaii

It’s mostly clear, with calm winds at my place, and with a low temperature of 50 degrees and the relative humidity is 82%


>>> Highest Temperature Thursday, June 11, 2026 – 116 at Death Valley, CA
>>> Lowest Temperature Friday, June 12, 2026 – 18 degrees near Mackay, ID

 

Hawaii’s Broad Brush Weather Overview…as of Friday morning: Gentle trades with mostly dry conditions should persist through Saturday. Moderate trades will briefly return early next week, bringing back the typical windward and mountain showers. A slight weakening and veering of the trade wind flow may unfold for the latter part of next week.

Short Term Update: Radar is not showing much, with only a few very light showers around, and mostly offshore. Look for scattered showers to develop this afternoon, mainly windward and mountains, but also in the Kona region. Isolated showers may develop in leeward areas due to weak sea breezes that should develop. Latest guidance shows winds will continue to weaken tonight and stay relatively weak through Sunday morning. Therefore, sea breeze effects are likely to become stronger Saturday. This will allow an even better chance for leeward showers.

Weather Details for the Hawaiian Islands…as of Friday morning: Observations across the state show the development of some light land breezes over many areas of the state. A weak ridge of high pressure is located just north of the state, which should produce gentle trade winds by later this morning. The trade winds will likely give way to some sea breeze development across select leeward areas, which should allow for some afternoon cloud development over interior areas.

As far as precipitation, rainfall amounts will be little to none in many areas, due to the dry and stable conditions seen on the Lihue atmospheric sounding. Drier than normal conditions will likely persist through Saturday. The gentle trades will slightly strengthen Saturday night into Sunday, which could bring a slight increase of some passing showers. A band of some deeper moisture could move in by Monday, which should bring the return of scattered showers, especially over windward and mountain areas.

A weak surface trough approaching the state from the east, and a developing low to the north will cause winds to weaken and veer slightly south of east across the islands for the latter half of next week. Increasing moisture ahead of the trough from the east will likely produce warm and humid conditions towards the second half of next week. Shower activity could also increase, particularly across the eastern end of the state. Most of these showers will likely be focused over windward and mountain areas, but if the winds become light enough as the pressure gradient weakens slightly mid-week, there may be some isolated sea breeze showers over leeward and interior areas during the afternoons.

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


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 Friday morning: Gentle to moderate east-northeasterly winds are expected through Saturday, as a weak front passing far north of the state keeps trade winds tempered. Moderate to fresh easterly trades will return Sunday through early next week, as a surface ridge strengthens north of the area.

Small pulses of southerly swell will bring somewhat below average surf to south facing shores today. Surf will begin to trend up on Saturday as forerunners from a large, long-period swell originating from southeast of New Zealand arrive. Surf is expected to peak Sunday into Monday, approaching warning levels, but most likely to remain at advisory levels. This swell will also coincide with the peak monthly tides which may lead to significant wave runup and minor coastal flooding during the first half of next week, particularly during the peak daily high tide cycles. South shore surf will remain elevated through much of next week, due to the slow decline of this large south swell and a series of continued overlapping southerly swells.

Very little swell energy is arriving along north facing shores today, keeping surf tiny to non-existent. A small bump in surf is possible along north and west facing shores with the arrival of a small northwest swell, and a smaller north swell early next week. Weaker than average trade winds near and upstream of the islands will produce below average surf along east facing shores through the weekend into early next week.

 

Hale O Lono Harbor and beaches Molokai Hawaii


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

Tropical cyclone formation is not expected during the next 7 days.

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

 

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

Western Gulf: Disorganized shower and thunderstorm activity has increased a little near a broad area of low pressure located over the Bay of Campeche. Environmental conditions are forecast to be only marginally conducive for development before the system moves inland over eastern Mexico late Saturday or Sunday. The system could re-emerge over the northwestern Gulf on Tuesday and Wednesday while interacting with a frontal boundary, but there too, conditions are only expected to be marginally conducive for any development.

* Formation chance through 48 hours…low…20 percent
* Formation chance through 7 days…low…20 percent

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

 

>>> Central Pacific: There are no active tropical cyclone

Tropical cyclone formation is not expected during the next 7 days.

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

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



Interesting: Efforts to Save Kelp Forests from Ocean Warming Are Ramping Up

At one time, kelp forests — which shelter fish, slow erosion, and sequester carbon — grew along a third of the world’s coastlines. Now, scientists are working to bolster heat-stressed kelp by attacking the urchins that prey on them and transplanting hardier kelp varieties.

In the coastal waters off British Columbia, tribal volunteers from the Haida Nation dive for purple sea urchins amid a dense forest of rippling golden-brown kelp fronds. Sunlight filters through the canopy, creating a mesmerizing dance of light and shadow, as rays and sea lions wend through the kelp maze, sharks glide past, and bright orange garibaldis dash between the swaying fronds.

Kelp forests are biodiversity hotspots teeming with a colorful variety of seaweeds, sponges, crustaceans, and other small ocean animals, many of them found nowhere else. At one time, vast kelp beds grew in nutrient-rich shallow waters along roughly a third of the world’s coastlines, where they helped to reduce the strength of waves, minimized coastal erosion, and provided shelter to fish, invertebrates, and marine mammals.

Today, however, many kelp forests are on life support, victims of water pollution from terrestrial agriculture and coastal development, bottom trawling for fish, and an explosion of kelp-devouring urchins, like those the Haida volunteers are collecting as part of an eradication program. But perhaps the most important driver of kelp decline is the rapid warming of the ocean.

Read More: Yale Environment 360