Sunday morning in Honolulu is starting off warm and sticky, with partly cloudy skies and temperatures near 73°F at Daniel K. Inouye International Airport. Daytime highs are expected to climb into the low 80s, around 83°F, and east winds near 8 to 13 mph will keep the air feeling muggy for both beachgoers and the afternoon commute.
Afternoon Through Monday
This afternoon should turn mostly cloudy, with only a slight chance of rain showers after noon, about a 20 percent shot, and a high near 83°F. Tonight, the odds of showers tick up to around 30 percent, although new rainfall amounts should generally stay under a tenth of an inch. Isolated heavy downpours or a brief thunderstorm could still flare near the Koolau Mountains and around Kauai as a weak upper-level trough passes overhead. There are no watches or warnings in effect for Oʻahu, and trade winds are expected to remain on the lighter side across the western islands before rebuilding later Thursday and Friday, according to the National Weather Service in Honolulu.
What This Means For You
Expect sticky commutes and keep a light rain jacket within reach, since a quick, localized shower could move through during afternoon errands or the evening drive and briefly cut visibility on mauka and windward routes. Most routine outdoor plans can stay on the calendar, but if you live along exposed leeward edges, it is a good idea to secure lightweight outdoor furniture. For more on the recent pattern and how it may change later in the week, you can look back at our April 16 forecast.
Marine Outlook
Small northwest swells will keep north-facing surf on the elevated side into the morning, and a moderate northeast swell is expected to peak Tuesday through Wednesday, bringing modest surf to north-facing shores and choppier conditions in exposed channels. Winds remain light to moderate today, but they could turn breezier if the trades rebuild later in the week, so boaters should monitor updates from the National Weather Service before heading into open water.
