A more seasonal trade wind pattern has returned to the state with the exit of Hurricane Lala. Expect typical trade wind showers focused along windward and mauka areas through tonight. Trade winds weaken Wednesday into the latter half of the week as a trough passes northeast of the islands. The trough also brings an increase in moisture that will produce an uptick in shower activity through Friday. This weekend, trade winds restrengthen.
Issued at 345 AM HST Tue Aug 18 2026
Moderate trades through the forecast period. Low cigs and SHRA along windward and mauka locations. MVFR conds possible in SHRA otherwise VFR prevails.
AIRMET Sierra is in effect for mtn obsc along windward portions of all islands. Conds should improve in the mid morning hours.
Issued at 345 AM HST Tue Aug 18 2026 High pressure far northeast of the waters will remain nearly stationary and slowly weaken through Thursday. Wind speeds have eased slightly overnight as the Small Craft Advisory has been cancelled. Trade winds will continue to weaken further to become light and variable for most waters giving way for localized land and sea breezes. By Friday, the high will drift southeast as moderate to locally fresh trade winds will likely build back in.
Surf along south facing shores will slowly decline through midweek as offshore buoys south of the islands continue to decline. Another long period south swell generated from gales just south and east of New Zealand will begin arriving late this week. Surf along east facing shores will continue to fade as trades decrease today. North facing shores will remain tiny throughout the week.
None.
