Moderate to locally breezy trade winds will persist into the upcoming weekend. Bands of low clouds and showers will be at times be carried in on the trades, focused primarily over windward and mauka areas during the overnight and early morning hours. Another such band is expected to reach the islands Tuesday night. Additionally, humidity levels will rise, bringing muggier conditions across the island chain through the middle of this week.
A brief break between passing low level troughs will produce mostly VFR conditions across the Hawaiian Islands through Tuesday morning. The next trough will move through the islands from the east from Tuesday night through Wednesday, expect increasing shower activity with periods of MVFR conditions, and mountain obscurations.
AIRMET Tango is also posted for tempo moderate leeward turbulence below 8000 feet for all islands due to the breezy trade winds.
Issued at 425 PM HST Mon Jun 29 2026
An area of surface high pressure will remain centered well north of the Hawaiian Islands this week and help drive moderate to fresh trades trades across the region. The Small Craft Advisory (SCA) has been trimmed back to the typical windy waters around Maui County and the Big Island with trade winds easing slightly overnight into Tuesday. However, the SCA advisory will likely need to be extended for these areas through much of this week with the persistent trades.
The current moderate, long-period south swell (nearly 3 feet, 15 seconds on offshore buoys) will begin to slowly fade tonight and continue to decline through midweek, leading to decreasing south and west shore surf through Wednesday. A small bump in surf along south-facing shores is possible Thursday into Friday with the arrival of a small, long-period south swell, but another larger long-period south swell energy pulse should arrive by late Saturday.
Surf along east-facing shores will remain rough and choppy through the week with moderate to fresh trades in place. Nearly flat surf heights will persist along north facing shores.
Small Craft Advisory until 6 PM HST Tuesday for Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters- Maalaea Bay-Pailolo Channel.
