Honolulu is starting Tuesday with mostly clear skies and a warm-up toward 88 degrees, with rain chances remaining low through the afternoon. But the easy beach-weather setup has an expiration date: showers become much more likely after sunset.
Tuesday night brings a 70% chance of rain and mostly cloudy skies. The forecast allows for 1 to 2 inches of new rainfall, though totals could vary sharply across Honolulu and nearby mountain slopes.
Wednesday Keeps Oahu Damp And Breezy
The National Weather Service Honolulu forecast calls for increasing showers on Oahu Wednesday.
Wednesday night carries another 70% rain chance, with a low around 76 and as much as three-quarters to 1 inch possible. Brief heavy showers remain the main concern, especially where rain bands settle over mountain or southeast-facing areas.
Weather Improves By Friday
Showers are expected to continue into Thursday. Conditions turn drier Friday, when Honolulu is expected to see mostly sunny skies, an 87-degree high and lighter east-southeast winds.
The weekend looks more manageable, with isolated showers and highs around 87 Saturday and 86 Sunday. Monday brings a slightly higher 30% chance of scattered showers, but the broader pattern favors drier easterly trade winds after Nolo's moisture moves away.
Advisories Remain Focused West Of Oahu
The latest forecast lists no active advisory for Honolulu itself; a High Surf Advisory for parts of Kauai and Oahu had been in effect until 6 a.m. Monday, September 28, while a Small Craft Advisory covering Kauai-area waters had been in effect until 6 p.m. Monday, September 28. The wetter outlook is a substantive update to Hoodline's Monday forecast, which had already flagged showers for Tuesday night but not the full run of unsettled weather now expected through Thursday.
