Honolulu woke up mostly clear and comfortably warm at 76°F on Tuesday, June 30, 2026, with light northerly winds drifting across Daniel K. Inouye International Airport. Those calm conditions are not expected to last. Northeast trade winds are forecast to ramp up through the day, and gusts will leave ridgelines and exposed shores feeling noticeably blustery. A few isolated morning showers could sneak in before noon, but the afternoon is expected to turn mostly sunny with a high near 86°F.
Afternoon Winds Pick Up
By this afternoon, northeast winds are expected to strengthen to around 15 to 18 mph, with gusts as high as 25 mph, especially along ridgelines and exposed beaches. Drivers can expect stronger crosswinds on bridges and other open stretches, particularly if you are in a high profile vehicle, and anything loose on the lanai such as patio furniture or umbrellas is at risk of going airborne. These wind trends and gust values are from the National Weather Service Honolulu.
Marine And Surf
A Small Craft Advisory is in effect until 6 PM HST this evening for the Alenuihaha Channel, Maalaea Bay, Pailolo Channel, Big Island Leeward Waters and Big Island Southeast Waters, which will make open channels choppy for small vessels. East facing shores will stay rough and choppy through the week, while south facing surf is slowly fading but could see a small bump Thursday into Friday. Boaters and beachgoers are better off favoring more sheltered harbors and should keep an eye on shifting conditions.
Midweek Outlook
From Tuesday night into Wednesday, an enhanced plume of low level moisture is expected to slide over the islands, increasing shower coverage over windward and mauka areas and turning the air noticeably muggy as dewpoints climb into the lower 70s. Brief heavy downpours are possible in spots, although forecasters still expect the overall flood risk for Oahu to remain low, with only some spillover showers into typically drier leeward neighborhoods. Plan on sticky overnight lows in the upper 70s and highs near the mid 80s on Wednesday, July 1, 2026, according to the National Weather Service Honolulu.
Stay Alert
Residents are encouraged to sign up for county emergency alerts and follow official accounts for any sudden advisories, with alert signups and county level guidance available through the Hawaii Emergency Management Agency. For routine weather and marine updates before heading to exposed beaches or launching small craft, keep checking local products from the National Weather Service and county pages.
