A high pressure system far north of the Hawaiian Islands will slowly drift east over the next few days, the ridge will remain in place north of the region keeping easterly trade winds in the forecast through the end of next week. An upper level disturbance moves over the islands on Tuesday and then drifts slowly eastward, increasing clouds and showers across the region lasting into the end of next week. Shower activity during this time period will favor windward mountain areas mainly in the overnight to early morning hours.
Issued at 343 PM HST Sat Apr 25 2026
Moderate to locally breezy trades through early next week. Low cigs and SHRA can be expected over windward and mauka locations. MVFR conds expected in heavier SHRA, otherwise VFR prevails.
No AIRMETs in effect.
Issued at 343 PM HST Sat Apr 25 2026 High pressure north of the state is producing moderate to fresh trade winds this afternoon. A slight decrease is expected tonight into early next week as a weak trough tracks west across the state. The trough should bring an increase of shower coverage, especially over windward waters. High pressure will rebuild far north of the state towards the middle of next week, which should bring the return of moderate to locally strong trades.
A medium-period northwest swell peaks tonight into Sunday, producing small to moderate surf for north and west-facing shores, before gradually declining through early next week. A hurricane-force low tracking across the Aleutian Islands tonight should send a moderate northwest swell towards Hawaii around the middle of next week.
Short-period northeasterly energy is beginning to decrease this afternoon, which will keep below average surf along eastern exposures for the first half of next week due to the lack of any strong trade wind activity. Locally strong trade winds could return during the latter half of next week, which could bring rough and choppy surf with near normal wave heights.
Small background energy from the west will continue to linger through today and fade out on Sunday. A small southwest bump from the Tasman Sea is expected to slowly fill in tonight and peak on Sunday. No significant south swell is expected through the first half of next week. A fetch of gales passing east of New Zealand today could produce a small south-southwest swell for next weekend.
None.
