Honolulu wakes up mostly cloudy and 77°F at Daniel K. Inouye International Airport early Sunday, with isolated morning showers riding in on steady east-northeast trade winds. Highs are expected to climb into the mid-80s, topping out near 86°F this afternoon, and that marine breeze will keep the air feeling humid. Gusts into the mid-20 mph range are possible along exposed ridgelines and coastal spots, so it will be breezy at times.
Today and Tonight
Isolated rain showers are likely through the morning hours, then skies should turn mostly sunny this afternoon with a high near 86°F. East-northeast winds are forecast around 13–17 mph with gusts up to 24 mph. Tonight brings scattered showers and a warm low near 78°F. Where showers do form, rainfall totals are expected to stay light, generally under a tenth of an inch.
A Small Craft Advisory remains in effect through 6 p.m. HST this evening for Maalaea Bay, Pailolo Channel, Alenuihaha Channel, Big Island Leeward Waters and Big Island Southeast Waters, according to the National Weather Service Honolulu.
Week Ahead
A couple of bands of enhanced moisture are projected to move over the islands tonight through Thursday, which will boost shower coverage and humidity through the first half of the work week. Dewpoints are expected to rise into the lower 70s starting Monday, so mornings will feel noticeably muggy.
"Some locally heavy rainfall can't be ruled out," the forecast office noted, although with the trade winds holding, a widespread flash-flood threat is not expected. For a deeper breakdown of timing and locations, see the latest forecast discussion from the National Weather Service Honolulu.
Marine And Outdoor Impacts
On the water, boaters should be ready for choppy seas and stronger easterly winds in the advisory zones. Securing loose gear and checking harbor notices before heading out would be wise.
On land, beachgoers and anyone with outdoor plans will want a light rain layer handy, especially in windward and mauka areas where passing showers are most likely. Brief downpours could slow traffic at times, so it may help to pad the commute a bit if clouds start stacking up. For events later in the week, keep an eye on updates Monday through Wednesday in case of short-lived heavier showers that could temporarily reduce visibility on the roads.
