Locally breezy trade winds will continue but ease a bit early next week. A trend toward fewer windward and mauka showers, and more sunshine, is expected Sunday as drier air pushes in on the trades. At this time, we don't see any significant areas of enhanced moisture moving toward the state, so relatively dry trades should continue through late next week.
Issued at 308 PM HST Sat Jul 18 2026 Moderate trades will continue through Sunday, with just a slight decrease in speed tomorrow. Clouds and isolated to scattered showers will remain over windward and mauka locations. Conditions will be VFR apart from isolated MVFR over windward and mauka areas in clouds and showers.
No AIRMETs are in effect.
Fresh to locally strong trades will continue through Sunday, and a Small Craft Advisory (SCA) remains in effect for the typically windy areas around Maui and the Big Island through 6 pm Sunday. The trades will ease Sunday night and Monday as high pressure north of the islands weakens, with the trades then holding at moderate speeds through Tuesday. The trades will then restrengthen back to fresh to locally strong speeds Wednesday and Thursday as high pressure strengthens north of the island chain.
Surf along south facing shores will remain near the summertime average tonight. A larger, south swell is expected to build late Sunday and Sunday night, then peak close to advisory levels late Monday through early Wednesday. As this swell slowly fades during the middle of next week, a new long period south swell will arrive on Thursday, keeping surf elevated through next weekend.
Surf along north-facing shores will remain at flat to tiny levels through next weekend.
Surf along east facing shores will remain close to seasonal levels through Monday, then lower slightly Tuesday and Wednesday, before building back close to seasonal levels late next week and through the weekend. Additionally, swell from Tropical Storm Elida may give a slight boost to east shore surf during the middle of next week.
Small Craft Advisory until 6 PM HST Sunday for Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters- Maalaea Bay.
