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Ahuimanu, Hawaii 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Ahuimanu HI
National Weather Service Forecast for: Ahuimanu HI
Issued by: National Weather Service Honolulu, HI
Updated: 6:02 am HST Jul 15, 2025
 
This
Afternoon
This Afternoon: Isolated showers.  Partly sunny, with a high near 82. Breezy, with an east northeast wind 13 to 15 mph, with gusts as high as 21 mph.  Chance of precipitation is 20%.
Isolated
Showers and
Breezy
Tonight

Tonight: Scattered showers.  Mostly cloudy, with a low around 75. Breezy, with an east northeast wind 13 to 17 mph, with gusts as high as 24 mph.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Scattered
Showers and
Breezy
Wednesday

Wednesday: Scattered showers, mainly before noon.  Partly sunny, with a high near 82. Breezy, with an east northeast wind around 17 mph, with gusts as high as 24 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Scattered
Showers and
Breezy
Wednesday
Night
Wednesday Night: Scattered showers.  Mostly cloudy, with a low around 74. Breezy, with an east northeast wind 14 to 16 mph, with gusts as high as 22 mph.  Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Scattered
Showers and
Breezy
Thursday

Thursday: Scattered showers.  Partly sunny, with a high near 82. Breezy, with an east northeast wind around 16 mph, with gusts as high as 22 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Scattered
Showers and
Breezy
Thursday
Night
Thursday Night: Showers.  Low around 74. Breezy, with an east northeast wind 11 to 15 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Showers and
Breezy
Friday

Friday: Showers likely, mainly before noon.  Mostly cloudy, with a high near 82. Breezy, with an east northeast wind around 15 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%.
Showers
Likely and
Breezy
Friday
Night
Friday Night: Showers.  Low around 74. East northeast wind around 14 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%.
Showers

Saturday

Saturday: Showers likely, mainly before noon.  Cloudy, with a high near 82. East wind around 14 mph, with gusts as high as 18 mph.  Chance of precipitation is 60%.
Showers
Likely
Hi 82 °F Lo 75 °F Hi 82 °F Lo 74 °F Hi 82 °F Lo 74 °F Hi 82 °F Lo 74 °F Hi 82 °F

 

This Afternoon
 
Isolated showers. Partly sunny, with a high near 82. Breezy, with an east northeast wind 13 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Tonight
 
Scattered showers. Mostly cloudy, with a low around 75. Breezy, with an east northeast wind 13 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
 
Scattered showers, mainly before noon. Partly sunny, with a high near 82. Breezy, with an east northeast wind around 17 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
 
Scattered showers. Mostly cloudy, with a low around 74. Breezy, with an east northeast wind 14 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
 
Scattered showers. Partly sunny, with a high near 82. Breezy, with an east northeast wind around 16 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
 
Showers. Low around 74. Breezy, with an east northeast wind 11 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
 
Showers likely, mainly before noon. Mostly cloudy, with a high near 82. Breezy, with an east northeast wind around 15 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Friday Night
 
Showers. Low around 74. East northeast wind around 14 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.
Saturday
 
Showers likely, mainly before noon. Cloudy, with a high near 82. East wind around 14 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.
Saturday Night
 
Showers likely. Cloudy, with a low around 74. East wind around 14 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Sunday
 
Scattered showers. Mostly cloudy, with a high near 82. Breezy, with an east wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Sunday Night
 
Scattered showers. Mostly cloudy, with a low around 75. Breezy, with an east wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Monday
 
Scattered showers. Partly sunny, with a high near 83. Breezy, with an east wind around 16 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Ahuimanu HI.

Weather Forecast Discussion
278
FXHW60 PHFO 151744
AFDHFO

Area Forecast Discussion
National Weather Service Honolulu HI
744 AM HST Tue Jul 15 2025

.UPDATE...
Improving conditions on Kauai and Oahu have prompted the
cancellation of the AIRMET for mountain obscuration. See the
aviation section below for more details.

&&

.SYNOPSIS...
A high pressure system will remain in place north of the Hawaiian
Islands through the weekend keeping moderate to locally breezy
trade winds into the extended range forecast. A disturbance
passing through the islands today will briefly increase shower
activity through the morning hours. More stable conditions with
limited shower activity returns into Friday. Another upper level
disturbance moves over the islands producing a slight increase in
shower activity forecast from Friday afternoon through the
weekend.

&&

.PREV DISCUSSION.../ISSUED 338 AM HST Tue Jul 15 2025/
An easterly wave moving through the islands shows up on this
mornings satellite imagery as unstable cloud bands moving through
the central and western islands. More stable stratocumulus clouds
are filling in behind this trough as the ridge builds over the
state and we return to more stable weather conditions later today.
Local radar imagery shows scattered to numerous shower bands
drifting into the windward and mountain slopes of each island on
the trade winds. A few of the strongest showers may bring brief
showers to the typically drier leeward areas.

After a wet summer morning, expect drier and more stable
conditions to develop across the state lasting into Friday, as
high pressure will keep a subsidence cap on vertical cloud
development. Subtle changes in the island cloud and shower
pattern will become less stable from late Friday on into the
weekend, as a weak upper level low injects some instability across
the Hawaii Region. A slight increase in shower trends are
anticipated mainly during the overnight to early morning hours
favoring the windward and mountain areas.

Confidence in these shower trends remain moderate at this time,
as the strength of the upper low is currently projected to be on
the weaker side of the equation. More details will become clearer
later this week, as the time period grows closer, and our
confidence on island by island shower trends improve.

&&

.AVIATION...
Surface high pressure will remain north of the Hawaii this week,
leading to moderate to locally breezy easterly trade winds. A weak
low level trough will produce slightly active showers and periods
of MVFR ceiling and visibility on windward Kauai and Oahu this
morning, with improvement expected from east to west this
afternoon. Stable conditions and VFR will prevail elsewhere.

AIRMET Sierra for mountain obscuration has been cancelled for all
islands.

&&

.MARINE...
A ridge of high pressure will remain far north of the state
throughout the week. Trades should gradually strengthen today. A
Small Craft Advisory (SCA) is in effect for the typical windy
areas around Maui County and the Big Island starting 6AM this
morning. Fresh to locally strong trades will likely persist
through most of the week, although we could see winds drop below
SCA criteria as a weak trough develops over the western end of the
state into the weekend.

Surf along south facing shores should see a small boost over the
next few days due to a pair of south and south-southeast swells. A
long-period south swell should peak today near summer averages.
As this swell declines a reinforcing swell from the south-
southeast should fill in later today into Wednesday. This should
maintain surf heights through the middle of the week. Surf should
gradually decline Thursday into Friday, but another small increase
is expected into the weekend as a new long-period southwest swell
arrives from the Tasman Sea.

Surf along east facing shores will continue to remain rough and choppy
with surf heights getting a slight increase as the trades
strengthen. Surf along north facing shores will continue to
decline through Wednesday.

&&

.FIRE WEATHER...
Trade winds will remain in the moderate to locally breezy range
into the upcoming weekend. After a period of higher humidity
levels and elevated shower trends this morning, weather conditions
will dry out and become more stable into Friday. Another increase
in shower trends may develop from Friday afternoon through the
weekend as an upper level disturbance moves over the island chain.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
Small Craft Advisory until 6 PM HST Wednesday for Maalaea Bay-
Pailolo Channel-Alenuihaha Channel-Big Island Leeward Waters-Big
Island Southeast Waters.

&&

$$

UPDATE...Wroe
DISCUSSION...Bohlin
AVIATION...Wroe/Walsh
MARINE...Walsh
FIRE WEATHER...Bohlin
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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