Kihei, Hawaii 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

275
FXHW60 PHFO 240137
AFDHFO

Area Forecast Discussion
National Weather Service Honolulu HI
337 PM HST Mon Jun 23 2025

.SYNOPSIS...
Strong trade winds will gradually weaken over the next several
days, with moderate trades expected by the middle of the week.
Passing showers will mainly impact windward and mauka areas with
light rainfall amounts.

&&

.DISCUSSION...
High pressure far northeast of the state will maintain breezy to
locally strong trade winds across the islands. Radar and satellite
imagery show clouds and passing showers embedded in the trade wind
flow impacting mainly windward and mauka areas. The one exception
is the Kona Slopes of the Big Island where sea breezy clouds and
showers have developed. Expect these showers to continue through
this evening then wane overnight as the land breeze develops.

Trades will gradually weaken over the next day or two. A weak
upper level trough will pass near the state tonight into Tuesday
which could enhance the trade wind showers, particularly near
Kauai where some weak instability could allow for periods of
moderate rain. Elsewhere, shower activity is not expected to be
as frequent with passing showers expected across windward and
mauka areas.

Medium range guidance now shows the upper level trough lingering
north of the state through the end of the week and into the
upcoming weekend as upper level ridging develops to the east.
Lingering instability could help to enhance showers at times
across the islands, but no significant impacts are expected at
this time. Otherwise, expect moderate to locally breezy trades
with passing windward and mauka showers.

&&

.AVIATION...
High pressure sitting to the far northeast will bring breezy
trades to the main Hawaiian Islands through this evening, focusing
clouds and showers over windward and mountain areas. Winds will
drop down a notch tomorrow as the high weakens slightly to our
northeast, but will still remain locally breezy.

AIRMET Tango is in effect for moderate turbulence below 8000 feet
downwind of island terrain. This AIRMET will likely be needed
through at least tomorrow with the breezy trades.

AIRMET Sierra is in effect for mountain obscuration for windward
portions of the Big Island this afternoon and may be needed
overnight.

&&

.MARINE...
High pressure far northeast of the islands will drive breezy to
locally strong trade winds through Tuesday before weakening during
the remainder of the week. The Small Craft Advisory (SCA) is in
effect for the windier waters and channels around Maui County and
the Big Island through the day Tuesday. Winds are expected to drop
below SCA thresholds by Tuesday night or on Wednesday.

Surf along south shores are showing a modest increase this
afternoon as a new long-period south swell continues to gradually
fill in. Offshore buoys continue to show a gradual increase and we
should see this moderate, long-period south swell peak Tuesday
into Tuesday night then gradually decrease through the rest of the
week. This swell is expected to peak just below High Surf
Advisory criteria on Tuesday.

Surf along east facing shores will remain rough and choppy through
the week with a gradual decline expected as the trades weaken
throughout the week. Surf along north facing shores will remain
tiny with mainly background energy through the forecast period.

Peak high tides associated with the lunar cycle will lead to
minor coastal flooding along shorelines and low lying coastal
areas through Thursday. A Coastal Flood Statement has been issued
for the daily peak tide each afternoon and may be exacerbated by
the ongoing south swell as it peaks on Tuesday.

&&

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

&&

$$

DISCUSSION...Ahue
AVIATION...Farris
MARINE...Kino