NWS Marine Forecast


   PHZ100-010145-  300 AM HST Sun May 31 2026    .Synopsis for Hawaiian coastal waters...  A surface ridge north of the islands will weaken today, then  gradually restrengthen Monday through Thursday.    $$
   PHZ122-010145-  Big Island Windward Waters-  300 AM HST Sun May 31 2026    TODAY  Northeast winds 10 to 15 knots. Seas 4 to 6 feet. Wave  Detail: East southeast 4 feet at 8 seconds and south 4 feet at  15 seconds. Scattered showers, mainly this morning.  TONIGHT  East northeast winds 10 to 15 knots. Seas 4 to 6 feet.  Wave Detail: East southeast 4 feet at 8 seconds and south 4 feet  at 14 seconds. Isolated showers in the evening, then scattered  showers after midnight.  MONDAY  East winds 10 to 15 knots. Seas 4 to 6 feet. Wave  Detail: East southeast 4 feet at 8 seconds and south southwest  4 feet at 18 seconds. Scattered showers.  MONDAY NIGHT  East winds 10 to 15 knots. Seas 4 to 6 feet. Wave  Detail: South southwest 5 feet at 16 seconds and east southeast  4 feet at 7 seconds. Scattered showers.  TUESDAY  East winds 15 to 20 knots. Seas 5 to 7 feet. Wave  Detail: East southeast 5 feet at 5 seconds, south southwest  5 feet at 16 seconds and north 3 feet at 11 seconds. Scattered  showers, mainly in the morning.  TUESDAY NIGHT  East winds 15 to 20 knots. Seas 6 to 8 feet.  Wave Detail: East southeast 6 feet at 6 seconds, south southwest  5 feet at 18 seconds and north 3 feet at 10 seconds. Isolated  showers in the evening, then scattered showers after midnight.  WEDNESDAY  East winds 15 to 20 knots, becoming east northeast  20 to 25 knots in the afternoon and evening, then becoming east  15 to 20 knots after midnight. Seas 6 to 8 feet. Wave Detail:  East southeast 6 feet at 6 seconds, south southwest 5 feet at  16 seconds and north 3 feet at 9 seconds. Scattered showers in  the morning, then isolated showers through the night. Scattered  showers after midnight.  THURSDAY  East winds 15 to 20 knots, becoming east northeast  20 to 25 knots in the afternoon and evening, easing to 15 to  20 knots after midnight. Seas 7 to 8 feet. Wave Detail: East  6 feet at 7 seconds, south southwest 5 feet at 15 seconds and  north 4 feet at 11 seconds. Scattered showers in the morning,  then isolated showers through the night. Scattered showers after  midnight.    $$