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

 

The latest update to this website was at 6pm Monday evening HST


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

0.19   Mount Waialeale, Kauai
1.65  Tunnel RG, Oahu
0.78  Puu Alii, Molokai
0.19  Lanai City, Lanai
2.07  West Wailuaiki, Maui
0.83  Kawainui Stream, Big Island


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

18  Port Allen, Kauai – SW
33  Kuaokala, Oahu – SW  
23  Makapulapai, Molokai – ENE
m  Lanai 1, Lanai – m
25  Kahului AP, Maui – NE 
27  Kealakomo, Big Island – ENE


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 (out of operation). 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

 Thunderstorms far southwest…former Genevieve far northeast 

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/GEOCOLOR/20262151900-20262160250-GOES18-ABI-HI-GEOCOLOR-600x600.gif

  High and middle level clouds moving across the state from the west at times…low clouds arriving from the east on the trade winds

 

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 

 

https://www.weather.gov/wwamap/png/hfo.png

 

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




~~~ Hawaii Weather Narrative ~~~

 

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

523am, it’s clear here in upper Kula with calm winds, and a low temperature at my place of 55 degrees…with the relative humidity 80%

130pm, our weather is just like two days ago, and yesterday, and likely how it will be tomorrow. I played pickleball in Makawao this morning, and had so much fun!

557pm, cloudy, very warm and muggy, along with a few light sprinkles here in upper Kula.

 

>>> Highest Temperature Monday, August 3, 2026 – 123 degrees near Tecopa, CA

>>> Lowest Temperature Monday, August 3, 2026 – 27 degrees at Stanley, ID

 

Interesting Web Blog: Mauka Showers…Tropical Cyclones that Threaten the Hawaiian Islands

 

Hawaii’s Weather Highlights…as of Monday evening: Trade winds will remain light to moderate through much of the week, as the remnant circulation of Tropical Cyclone Genevieve lingers far northeast of the islands. Clouds and showers will favor windward and mountain areas, and may be a little more frequent for the western half of the state this week due to an upper level trough. Trade winds then look to increase this coming weekend.

Weather Narrative..as of Monday evening: High pressure north of the area is generating moderate trade winds, which are delivering light showers to mostly windward and mountain areas. Former Tropical Cyclone Genevieve resides to the far northeast where it is currently drifting west, and will likely contribute to decreasing the trade winds Tuesday through Thursday. Also by tomorrow, an upper level trough will approach the area from the northwest, and could give a small boost to trade wind showers for the western half of the state.

Areas of localized land and sea breezes will be possible with the lighter winds, and associated cloud and shower buildups in the afternoons. This upper trough is then expected to move away by Friday. By the weekend, models are hinting at some incoming tropical moisture along a trough connected to the deeper tropics. Trades could push this area of moisture across Big Island and Maui if it moves far enough north. Trade winds also look to increase during the weekend.

 

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 Conditions…as of Monday evening: A ridge of high pressure north of the state will continue to weaken over the next several days, as a cold front passes by far north of the state. Trade wind speeds will weaken in response, lasting through Thursday. Trade winds should restrengthen by the end of the week, as high pressure builds far north of the state.

Surf along south facing shores will stay below seasonal averages, with mainly background energy throughout most of this week. The next small, long period south swell will arrive by Saturday, with a slight bump in south shore surf heights through Sunday. A series of south swells are expected the following week (week of Aug 9th), which should produce surf heights at or above seasonal averages.

East facing shores will remain rough and choppy with steady decreasing trends, as the trade winds ease through much of the week. Small, medium period easterly swell generated from former Tropical Cyclone Genevieve will linger over the next few days. Surf along north facing and west shores will remain flat to tiny, except for areas exposed to the easterly trade wrap.

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Kid Friendly Beaches Oahu: From Babies to Big Kids


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

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

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

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

 

Northeast Pacific: There are no active tropical cyclones

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

Central North Pacific: There are no active tropical cyclones

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

 

>>> Northwest Pacific Ocean:  

Tropical cyclone 12W (Dolphin)…is located approximately 836 NM east of Kadena AB

https://www.metoc.navy.mil/jtwc/products/wp1226.gif

https://www.metoc.navy.mil/jtwc/products/12W_040000sair.jpg

 

>>> 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:  Climate Change Is Reshaping Northern Eurasia’s Carbon Sink

A new study analyzed data from multiple independent sources, ranging from satellite remote sensing-based machine learning products to state-of-the-art Earth System Models, to reveal how climate change shapes the Northern Eurasian carbon sink. The study confirms that Northern Eurasia accounts for nearly one-third of the global terrestrial carbon sink. It also shows that, despite warming faster than most regions worldwide, the northern high latitudes contribute little to strengthening the Northern Eurasian carbon sink because of their low baseline carbon uptake.

Northern Eurasia contains about 20% of the world’s forests and plays a crucial role in mitigating climate change by absorbing atmospheric carbon dioxide, thereby acting as a major carbon sink. However, understanding the region’s carbon sink is challenging because it is influenced by multiple interacting factors, including rapid climate change, wildfires, land-use change, and limited observational coverage across its vast extent.

A new study integrated evidence from multiple independent sources, including satellite observations, data-driven products, atmospheric inversion models, dynamic global vegetation models, and Earth System Models, to investigate how climate and climate change shape the Northern Eurasian carbon sink. Despite substantial differences among the data sources, the study found broad agreement that Northern Eurasian ecosystems absorb approximately 0.47 ± 0.20 billion tonnes of carbon annually, accounting for nearly one-third of the global terrestrial carbon sink.

Read More: University of Tsukuba

Image: Dense forest landscape near Mount Elbrus in Northern Eurasia