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

 

The latest update to this website was at 607pm Tuesday evening HST


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

1.99  Mount Waialeale, Kauai
1.00  Poamoho RG 1, Oahu
0.00  Molokai
0.00  Lanai
0.30  West Wailuaiki, Maui
0.52  Honolii Stream, Big Island


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

25  Port Allen, Kauai – E
24  Honolulu AP, Oahu – NE
28  Molokai AP, Molokai – NE
32  Lanai 1, Lanai – NE
29  Na Kula, Maui – ESE
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

  Two tropical disturbances (Invests 90C and 91C) south of Hawaii 

 

https://cdn.star.nesdis.noaa.gov/GOES18/ABI/SECTOR/hi/GEOCOLOR/20261951940-20261960330-GOES18-ABI-HI-GEOCOLOR-600x600.gif

Variable low clouds…high clouds moving over the state from the southwest

 

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 Tuesday comments:  I’m at home here in upper Kula, Maui, Hawaii

447am, it’s mostly clear with a few high cirrus clouds here in upper Kula with calm winds, and a low temperature at my place of 51.5 degrees…with the relative humidity 80%

1005am, a beautiful sunny day here on Maui, a great day to celebrate my birthday.

1223pm, quickly drove down to Mana Foods in Paia for my weekly shopping trip this morning. It was an easy trip, as I didn’t have any slow drivers ahead of me, going down or coming back up the mountain. The clouds have increased a bit, mostly just around the mountains at mid-day.

4pm, it just lightly rained here at my place in upper Kula, doesn’t appear that it will last however, and I can see lots of warm sunshine down at the beaches.

524pm, it’s cloudy again here at my place…and it’s raining again too! I so enjoyed putting my raincoat on and taking my last walk of the day in the light showers.

 

>>> Highest Temperature Tuesday, July 14, 2026 – 115 at Stovepipe Wells, CA
>>> Lowest Temperature Tuesday, July 14, 2026 – 37 degrees at Stub Creek, CO

 

Interesting Web Blog: Mauka Showers…Hawaii’s 2026 Dry Season – A Midpoint Update

 

Hawaii’s Weather Highlights…as of Tuesday evening:  Trades will continue through early next week, with subtle fluctuations in speed. Showers may favor some leeward and interior areas Wednesday afternoon in the lighter, slightly veered flow. Otherwise, batches of moisture will filter in on the trade wind flow, bringing periodic increases in windward and mountain shower activity, particularly during the overnight to early morning hours.

Weather Commentary…as of Tuesday evening: Radar and satellite imagery show that shower coverage has gradually decreased, with remaining activity continuing to favor the western half of the state. Upstream moisture suggests a slight uptick in shower coverage across windward and mountain areas statewide overnight.

High pressure far north of the area will be gradually nudged eastward through the weekend, as a series of lows pass through the far northeast Pacific. Another high will then build in behind it from the northwest early next week. The progression of these features, along with two areas of potential tropical development to the south and southwest of the state, will bring subtle ebbs and flows in the local pressure gradient, consequently altering trade wind speeds through the period.

Wind speeds will be moderate to locally breezy over the next couple of days, strengthen to become breezy through the weekend, and then potentially weaken slightly once again early next week. The two areas south and southwest of the state are being watched for potential tropical cyclone development, although are not expected to have any direct impacts on Hawaii at this time.

Batches of moisture will filter in on the trades, bringing periodic increases in windward and mountain showers. While most shower activity will remain focused over windward and mountain areas during the overnight to early morning hours, short-term guidance suggests that the low-level flow will temporarily veer slightly south of east Wednesday. This will increase the potential for isolated sea breeze showers over leeward areas across the state, and may allow bring showers to leeward Oahu Wednesday afternoon.

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 Tuesday evening: High pressure far north of the islands will maintain a trade wind pattern, however as the high has weakened and lifted away from the islands, trade winds are not quite as strong. Winds across the coastal waters remain below Small Craft Advisory levels. Winds could rebound during the second half of the week, as the high sinks southward, tightening the pressure gradient over the islands.

The current small, long-period southwest swell will continue to gradually decline through the middle of the week. A series of overlapping small south and southwest swells will maintain south shore surf, with a larger south swell expected early next week. Surf along east-facing shores will steadily decline through Wednesday, as the trade winds ease. Surf will then hold steady at slightly below seasonal averages along east facing shores through the weekend.

A series of small, long to medium period west to west-northwest swells generated by former Super Typhoon Bavi will be possible throughout the rest of the week. Otherwise, no significant north or northwest swells are expected.

Coastal flooding remains possible with the peak monthly high tides, combined with water levels running slightly higher than predicted.

 

How to Travel to Hawaii Without Leaving Home | The Discoverer


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.

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

 

Northeast Pacific:

Tropical cyclone 05E…is located about 560 miles south of the southern tip of Baja California

TROPICAL DEPRESSION FIVE-E FORMS WELL OFFSHORE OF MEXICO

According to the NHC Advisory number 1

The depression is moving toward the west near 18 mph and this motion is expected to continue through Wednesday. A turn toward the northwest at a slower forward speed is expected by late Thursday. Maximum sustained winds are near 35 mph with higher gusts. Steady strengthening is forecast during the next few days, and the cyclone is forecast to become a hurricane by Thursday night.

https://cdn.star.nesdis.noaa.gov/GOES19/ABI/SECTOR/eep/13/GOES19-EEP-13-900x540.gif

 

>>> Offshore of Southern and Southwestern Mexico:

An area of low pressure is expected to form later this week several hundred miles south of the coast of southern Mexico. Environmental conditions appear conducive for gradual development of this system thereafter, and a tropical depression is likely to form by the end of the weekend while it moves generally west-northwestward well offshore of Mexico.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…high…70 percent

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

 

Central Pacific: There are no active tropical cyclone

>>> Well South of the Hawaiian Islands:

Invest 91C

Well South of the Hawaiian Islands (CP91): A broad area of low pressure located several hundred miles south of the Hawaiian Islands is producing disorganized showers and thunderstorms. A tropical depression could still form over the next day or two while the system moves little. The disturbance is expected to move into less favorable environmental conditions later this week, likely ending its chances of development.

* Formation chance through 48 hours…medium…40 percent
* Formation chance through 7 days…medium…40 percent

 

>>> Well Southwest of the Hawaiian Islands:

Invest 90C

A trough of low pressure located several hundred miles to the southwest of the Hawaiian Islands continues to produce an area of disorganized showers and thunderstorms. Environmental conditions appear favorable for gradual development, and the system could become a tropical depression later in the week while it moves slowly northwestward, remaining well southwest of the Hawaiian Islands.

* Formation chance through 48 hours…low…30 percent
* Formation chance through 7 days…medium…60 percent

 

>>> 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:  Novel Marine Monitoring Network Could Help Improve Environmental Protections, Shipping Regulations in the Lower St. Lawrence

A single monitoring network developed by McGill, Natural Resources Canada, Université du Québec à Montréal (UQAM) and Dalhousie University researchers can simultaneously track earthquakes, water behavior, human activity and whales, providing a comprehensive picture of what’s happening in, under, and at far distances from the water.

The researchers’ experimental network, installed in the Lower St. Lawrence, detected twice as many earthquakes as the National Earthquake Monitoring System, while also capturing whale calls, ship noise, tidal activity and mining blasts.

The system combines tools known as “ocean bottom seismometers” from the National Facility for Seismological Investigations with coastal and land-based stations to monitor activity across the estuary.

Read More: McGill University