High pressure north of the islands will help maintain moderate to breezy trades through the week. Stable conditions will focus limited showers over windward and mauka areas through at least the middle of the week.
Moderate to locally breezy trades will continue through the holiday weekend. Low clouds and showers will bring MVFR conditions to windward and mauka areas at times. Otherwise, VFR conditions will prevail.
AIRMET Sierra remains in effect for mountain obscuration across windward sections of the Big Island, Oahu and Kauai. While a plume of moisture seen upstream of the Big Island may continue to supply clouds and showers to its windward areas for most of the day, conditions will likely improve for Oahu and Kauai by this afternoon.
AIRMET Tango remains in effect for moderate low level turbulence over and downwind of terrain of all islands. This AIRMET will likely continue through the weekend.
Issued at 332 AM HST Sat Jul 4 2026 A high pressure ridge north of the Hawaiian Islands will keep trade winds blowing across the region through the week. A Small Craft Advisory (SCA) for the typical windy waters and channels around Maui and the Big Island continues through Monday. Minor fluctuations in wind speeds may allow for brief periods of additional zones to fall into the SCA coverage area over the next several days.
As the current small long period south swell fades, yet another overlapping moderate long period south-southwest swell will fill in today, boosting south shore surf heights to near High Surf Advisory levels Sunday and Monday. This swell will slowly fade from Tuesday through the middle of next week.
Surf along east facing shores will remain rough and choppy through the forecast period as moderate to locally strong trades hold. Surf along north facing shores will remain tiny into next week.
Small Craft Advisory until 6 PM HST Monday for Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters- Maalaea Bay-Pailolo Channel.
