Moderate to breezy trade winds can be expected through the weekend and likely into the first half of next week, pushing showers over mostly windward and mountain areas. These showers will be more active during the night time and early morning hours. A mid level and upper level trough could occasionally allow some of these showers to be a little heavier than normal.
Moderate to breezy trades will persist through Friday. Low clouds and showers will favor windward and mauka areas as batches of moisture move in on the trades. Expect MVFR conditions within showers and VFR elsewhere.
AIRMET Sierra is in effect for mountain obscurations for windward sections of the Big Island. Conditions may linger into the morning due to the ongoing and upstream showers. The mountain obscurations for the Kona slopes have been cancelled due to conditions improving as the land breeze developed.
AIRMET Tango is in effect for moderate turbulence downwind of terrain due to the breezy trade winds and will continue through Friday.
Issued at 433 PM HST Thu Jun 25 2026 High pressure to the north will dominate through at least the first half of next week, keeping moderate to locally strong trade winds in place across Hawaiian waters. A Small Craft Advisory (SCA) remains in effect for the typically windier waters around Maui and the Big Island. Although the SCA goes through Friday afternoon, it will likely be extended through the weekend.
A small, long period south swell has peaked, producing head high to overhead surf heights at most exposed south shore surf breaks. This swell will slowly ease Friday and Saturday. Another small, long period south swell energy will fill in Saturday and peak by Sunday before gradually declining early next week. This swell should boost surf heights back up to near normal.
Surf along east facing shores will remain rough and choppy into the weekend as breezy trades persist. Surf heights along north facing shores will remain small to tiny through the first half of next week.
Small Craft Advisory until 6 PM HST Friday for Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters- Maalaea Bay-Pailolo Channel.
