Honolulu rolled into Saturday, June 20, under warm, mostly clear skies, with a forecast high near 87°F and east winds expected to kick up through the afternoon. The flip side of all that sunshine is a muggy night ahead, with lows around 76–77°F and only a slim chance of brief, isolated showers. Gustier spots along ridgelines and beaches could feel especially blustery later in the day.
Afternoon Winds Pick Up
By this afternoon, east winds should be running around 8 to 15 mph, with gusts up to about 21 mph in some leeward and ridge locations. Most neighborhoods are on track to top out around 86–87°F, with leeward areas running a touch warmer. According to the National Weather Service Honolulu, trades will strengthen into Monday, which should bring more consistent windward showers and slightly lower humidity later in the week.
Spotty Showers And Sticky Nights
Most of Oʻahu stays dry today, with only isolated windward and mauka showers possible in the morning before giving way to sunnier afternoon skies. Humidity will keep things feeling muggy, with dew points in the upper 60s to low 70s, so plan on a sticky evening and a warm overnight low. If you are heading for windward or higher terrain, a light rain layer is still a smart move.
Surf And Boating
A new long-period south swell is building through the day and will push surf higher along south- and west-facing shores, peaking overnight before easing on Sunday. That could mean punchier shorebreak on some beaches and choppier conditions offshore, so checking in with lifeguards and harbor operators is your best bet for the latest safety calls. For context on how recent big south swell and peak tides have impacted the shoreline, earlier coverage has more detail.
What To Know For The Commute
Expect a breezy afternoon commute near exposed roadways and ridges, and secure any loose outdoor items if you are hosting an afternoon gathering. There are no watches or warnings in effect for Oʻahu at this time, but conditions can always shift, so it is worth a quick check of the National Weather Service Honolulu forecast before you hit the road or head out on the water.
