Light to moderate rain continues across the western portion of the state as the rain band gradually meanders westward. Light and variable winds will favor daily land and sea breezes through midweek. By the latter half of the weak, gentle trades and quiet weather return to the forecast.
Issued at 928 AM HST Mon Apr 13 2026
Stratiform rain will continue to impact the islands today, however generally VFR conditions are expected due to the light intensity of the rain. MVFR conditions are most likely at more elevated sites such as Molokai and Lanai, as well as under periodic bursts of heavier rain. The forecast generally trends back toward benign trades by the midweek.
AIRMET Sierra remains in effect for mountain obscuration for Kauai, Oahu, Molokai, and Lanai. This may be reconsidered later today, however, if ceilings generally remain above 030.
AIRMET Tango also remains in effect for moderate turbulence over the islands from 120 to FL350, however this may be altered depending on what PIREPs report later today.
Moderate icing is possible so long as this ongoing system remains over the islands.
Issued at 928 AM HST Mon Apr 13 2026
A weak surface trough remains draped across the state, leading to pockets of variable winds over the central islands. Winds may be moderate to locally fresh when enhanced near island terrain, such as southeast near the Big Island or south near Kauai. The surface trough weakens and lifts out the latter half of the week. High pressure begins to take over at the surface, causing gentle to moderate easterly trades to gradually develop across the Hawaiian coastal waters by this weekend.
A small, medium-period northwest swell will diminish today. However, small surf will be maintained along north and west facing shores by a reinforcing pulse on Tuesday. Following this, northwest swell energy declines through the rest of the week.
A medium-period south swell will continue to decline today as well. A new south swell arrives on Tuesday, once again providing a boost to surf along south facing shores through mid week before gradually subsiding into the weekend.
Surf along east facing shores will remain below seasonal average with lighter than average trade winds near and upstream of the islands forecast through next week.
Wind Advisory until 6 PM HST this evening for Big Island Summits.
