The latest update to this website was at 941pm Sunday (HST)

 

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

0.12  Puu Opae, Kauai
0.35  Nuuanu, Oahu
0.19  Molokai 1, Molokai
0.17  Lanai City, Lanai
0.64  Hana AP, Maui
0.42  Pohakuloa Keamuku, Big Island

>>> There are lots of locations that measure rainfall and winds, here’s a map of all areas for your reference (the map is clickable to zoom in closer)

The following numbers represent the strongest wind gusts (mph) as of Sunday evening:

07  Nawiliwili, Kauai
12  Kii, Oahu
13  Keopukaloa, Molokai
13  Lanai 1, Lanai
17  Honoapiilani, Maui
16  Pali 2, Big Island

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

 Tropical Cyclone Kiko gradually weakening as it approaches from the east 

 

https://www.weather.gov/images/hfo/satellite/Hawaii_IR_loop.gif

Low clouds locally…with well developed cumulus clouds to the north – we’re beginning to see the clouds on the leading edge of Hurricane Kiko…coming into view to the east

 

https://radar.weather.gov/ridge/standard/PHKI_loop.gif

https://radar.weather.gov/ridge/standard/PHKM_loop.gif

Showers locally 

 

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

 

~~~ Hawaii Weather Narrative ~~~

 

Glenn’s Sunday comments:  I’m home here in upper Kula, Maui, Hawaii.

It’s mostly clear here in Maui County early this morning. The low temperature at my place was 53 degrees…with a relative humidity of 83%.

1230pm, it’s very cloudy over and around the mountains, although quite sunny down along the coasts in many areas.

143pm, there’s been a couple of light showers here in upper Kula, and it appears that there could be more…the temperature is a pleasant 72.1 degrees…although it’s humid.

413pm, it’s mostly cloudy, although at the moment, here at my place, the sun is breaking through the cloud cover.

930pm, we had some decent light rain fall for a good time late this afternoon into the early evening here in Kula, which was the best bout of precipitation that we’ve seen for quite some time. Now, the clouds are almost completely gone, with the almost full moon beaming down. The temperature is 59.7 degrees here at my Kula weather tower.

Weather Wit of the day:  Taxi Driver – A person to whom a rainy day is always fare weather

>>> Highest Temperature Sunday, September 7, 2025 – 112 at Stovepipe Wells, California
>>> Lowest Temperature Sunday, September 7, 2025 – 28 near Hazen, North Dakota

 

Tropical Cyclone Kiko: This hurricane is in our central Pacific….some 550 miles east of Hawaii.  The most recent status had Kiko with sustained winds of 105 mph, making it a Category 2 hurricane.

Hurricane Kiko will weaken to a tropical storm as it passes north of the islands Tuesday and Wednesday. Confidence in this scenario is increasing, though interests in Hawaii should continue to monitor official forecasts for Kiko. Moisture along the periphery of the system will spread over the state Monday night and Tuesday.

Initially, this will provide an increase in clouds and mainly windward showers, but as trade winds become disrupted, afternoon sea breezes will likely trigger spotty interior rainfall. These showers could be locally heavy in places, and we cannot rule out a brief thunderstorm as the atmosphere destabilizes on Tuesday. As humidity increases, rather humid conditions will prevail. In addition, large surf will affect east facing shores.

As Kiko moves off to the northwest of the state on Wednesday night and Thursday, moderate trade winds and a ridge aloft are expected to build in from the east. The resulting stable conditions will bring a drier air mass with a typical pattern of windward rainfall.

You can follow along with the latest information if you scroll down this page to the Tropical Cyclone section, and look for more detailed information on Kiko.

cone graphic

 

Hawaii’s Broad Brush Weather Overview:  A stable, light to moderate trade wind flow will produce light rainfall over windward slopes tonight, and drier air moving in from the east on Monday will lead to a decrease in shower activity on most islands. Hurricane Kiko is forecast to pass north of the island chain on Tuesday and Wednesday, disrupting the trade winds, producing increased humidity with areas of heavy rainfall, and generating large surf along east facing shores.

Hawaii’s Weather Details: Sea breezes have overpowered a weak trade wind flow as stable conditions remain in place. Trades are suppressed as the local pressure gradient has been weakened by a trough sitting roughly 200 miles north of Kauai. The upper-level low supporting this trough weakens considerably over the islands, allowing a lingering mid-level ridge to maintain stable conditions with an inversion holding between 5,000 to 8,000 ft.

A very diffuse area of low-level moisture within the weak trade wind flow managed to produce isolated modest rainfall on Maui County and Oahu, while other areas have remained mostly dry. As this moisture pushes slowly westward overnight, expect higher chances for mainly light showers to be focused on windward Oahu and eventually Kauai.

Except for a few lingering showers near Kauai and Oahu in the morning, a slot of rather dry conditions will spread from east to west on Monday as Hurricane Kiko approaches the region. Towards sunset, moisture along the western flank of weakening Kiko will near the windward coasts of the Big Island and Maui.

Fire weather:  Winds will remain well below critical fire weather thresholds the next few days. While humidity levels will steadily be on the rise, there will be brief periods of low early afternoon humidities within lower elevation, leeward interiors the next couple of days. Drier air will filter in across the state Monday and maintain low humidity, but winds will remain below critical fire weather thresholds. Showers may increase in coverage and intensity over many windward exposures beginning late Monday through the middle of the week, as a result of the approach and passage of Tropical Cyclone Kiko well north of the state.

Here’s a near real-time Wind Profile of the Pacific Ocean – 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:  A weak trough will linger north of the state, resulting in gentle to moderate trade winds with localized land and sea breezes. As the trough drifts westward Monday, more moderate trade winds could make a brief return.

Attention then turns to Hurricane Kiko, which was located east-southeast of Hilo. Hurricane Kiko continues to track west- northwest in the Central Pacific, and according to the latest forecast from the National Hurricane Center, is expected to enter our offshore waters Monday night as a hurricane. Kiko will then continue to move northwest through the offshore waters as it weakens to tropical storm status.

The last few advisories from NHC have consistently kept Kiko just far enough away to keep the mention of possible tropical storm conditions out of the coastal waters forecast. With that said, swell generated by Kiko will begin arriving today, peaking at or near High Surf Warning levels along east-facing shores Monday night and Tuesday.

Surf along east facing shores will steadily rise late today through the next couple of days as swell energy from Tropical Cyclone Kiko arrives. The surf may approach High Surf Advisory Criteria as early as Monday and possibly reach low end High Surf Warning levels Monday night into Tuesday during its peak. Surf heights will be highly dependent on the track and intensity of Kiko as it nears the state.

A moderate long period south-southwest swell will peak today, helping to build surf above the summer average. As this swell declines on Monday, another reinforcing swell out of the south-southwest is expected on Tuesday. This should help maintain surf near or slightly above the summer average throughout the first half of the week. Additionally, multiple small pules of northwest swell energy will generate small surf along north facing beaches through the week.

Peak monthly high tides, combined with water levels running higher than predicted, may lead to minor flooding along the shoreline and in low lying coastal areas.

 



World-wide Tropical Cyclone Activity

 

Atlantic Ocean:  There are no active tropical cyclone

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

Caribbean Sea:  There are no active tropical cyclone

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.

 

Northeastern Pacific:  There are no active tropical cyclones

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

 

North Central Pacific:  

Tropical Cyclone Kiko…is located about 550 east of Hilo, Hawaii

KIKO REMAINS A CATEGORY 2 HURRICANE…EXPECTED TO PASS NORTH OF THE HAWAIIAN ISLANDS ON TUESDAY AND WEDNESDAY

According to the NHC advisory number 32

Kiko is moving toward the northwest near 14 mph and this motion is expected to continue for the next few days, with Kiko expected to pass north of the main Hawaiian Islands Tuesday and Wednesday. Maximum sustained winds are near 105 mph with higher gusts. Additional weakening is forecast during the next few days, and Kiko is expected to become a tropical storm late Monday or Monday night. Hurricane-force winds extend outward up to 30 miles from the center and tropical-storm-force winds extend outward up to 90 miles.

cone graphic

Here’s the link to the Central Pacific Hurricane Center (CPHC)

 

Northwest Pacific Ocean: 

Tropical Cyclone 22W (Tapah)…is located approximately 94 NM west-southwest of Hong Kong – Final Warning

https://www.metoc.navy.mil/jtwc/products/wp2225.gif

Southwest Pacific Ocean:  There are no active tropical cyclones

North and South 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:  What Climate Change Means for the Mediterranean Sea

Climate change threatens marine and coastal ecosystems in the Mediterranean region. Warming, sea level rise, and ocean acidification are occuring there more intensely and rapidly than the global average. A recent study led by GEOMAR Helmholtz Centre for Ocean Research Kiel investigated how strongly marine and coastal ecosystems in the Mediterranean Sea are already at risk, even under comparatively moderate additional warming. For this purpose, 131 scientific studies were evaluated in a thorough meta-analysis. The results have now been published in the journal Scientific Reports.

Temperatures in the Mediterranean are currently rising to record levels. Instead of a refreshing dip, holidaymakers in places like Greece, Italy, and Spain, among other places, are now facing water temperatures up to 28°C or even higher. With an average water temperature of 26.9°C, July 2025 was the warmest since records began for the Mediterranean Sea, according to the Copernicus Earth Observation Service.

Warming caused by climate change is considered – alongside stressors such as overfishing, pollution, and habitat destruction – a major factor threatening marine and coastal habitats. “The consequences of warming are not only projections for the future, but very real damages we are witnessing now. The continuing rise in temperatures, sea level and ocean acidification cause severe risks for the environment in and around the Mediterranean Sea,” says Dr. Abed El Rahman Hassoun, Biogeochemical Oceanographer at the Helmholtz Centre for Ocean Research Kiel.

Read more at: Helmholtz Centre for Ocean Research Kiel (GEOMAR)