Honolulu is in full sunshine mode Monday, June 15, 2026, with mostly clear skies, daytime highs near 85°F and overnight lows around 74°F. At the same time, a large south-southwest swell is rolling in right as this month’s King Tides peak, driving south-facing surf into the 10 to 15 foot range and triggering both a High Surf Warning and a Coastal Flood Statement through Tuesday, June 16, 2026.
Afternoon Surf And Tides
The National Weather Service in Honolulu is calling for dangerous breaking waves of 10 to 15 feet along south-facing shores, with significant wave runup during the late-afternoon high tides. According to NOAA tide predictions for Honolulu, the daily high tides are lining up in the late afternoon on June 15 and June 16, raising the odds of minor coastal flooding, beach overwash and surges at harbor entrances. Expect the roughest impacts around the peak tides through Tuesday evening, when low-lying coastal roads, docks and boat ramps will be most vulnerable.
Inland Forecast And Winds
Away from the breaking surf, the city forecast stays mellow, with mostly sunny skies, a high near 85°F and a low near 74°F overnight. East-northeast trade winds should run around 9 to 16 mph with gusts up to 22 mph, which will keep ridgelines and shoreline spots feeling breezy. Isolated morning showers may pop up over windward and mauka neighborhoods, but rainfall amounts are expected to remain light.
Safety And Travel
The National Weather Service in Honolulu is strongly urging residents and visitors to give the shoreline some space, avoid driving through flooded roadways and move vehicles or valuables to higher ground when possible. Small boat owners are advised to secure vessels and hold off on entering or leaving channels until conditions calm down. If you hit saltwater on the road, the advice is simple and firm: turn around. Low-lying coastal routes could see closures during the late-afternoon high tides.
Looking Ahead
Surf is expected to ease Tuesday and Wednesday, but forecasters are already eyeing another pulse arriving Wednesday night into Thursday that could push south shores back up to advisory levels. We covered how this swell is stacking up with the tides earlier; check out our coverage of the big south swell and peak tides for background and local safety tips.
