Coastal Waters Forecast
Issued by NWS
Issued by NWS
442 FZHW51 PHFO 190121 CWFHI1 Generalized Statewide Coastal Waters Forecast for Hawaii National Weather Service Honolulu HI 320 PM HST Tue Nov 18 2025 .Synopsis for Hawaiian coastal waters... Trade winds will increase into the fresh to locally near gale range tonight and Wednesday as a stalling front northwest of Kauai weakens and robust surface high pressure builds far north of the state. Trades will ease to moderate to locally fresh strength late Thursday and Friday as the high moves off to the east. Another approaching front is expected to lower winds during the weekend. $$ Hawaiian waters within 40 nautical miles including the channels- ...SMALL CRAFT ADVISORY FROM WEDNESDAY MORNING THROUGH THURSDAY AFTERNOON FOR WATERS AROUND KAUAI...KAUAI CHANNEL...WATERS AROUND OAHU...KAIWI CHANNEL...MAUI COUNTY WINDWARD WATERS...MAUI COUNTY LEEWARD WATERS AND BIG ISLAND WINDWARD WATERS... ...SMALL CRAFT ADVISORY THROUGH THURSDAY AFTERNOON FOR MAALAEA BAY...THE PAILOLO AND ALENUIHAHA CHANNELS AND WATERS SOUTH OF THE BIG ISLAND... .TONIGHT...East northeast winds 20 to 25 knots. Seas 6 to 9 feet. Wave Detail: East 6 feet at 7 seconds and northwest 4 feet at 14 seconds. Numerous showers. .WEDNESDAY...East winds 25 to 30 knots. Seas 10 to 14 feet. Wave Detail: East 9 feet at 8 seconds, northwest 8 feet at 14 seconds and north northeast 4 feet at 7 seconds. Scattered showers. .WEDNESDAY NIGHT...East winds 25 to 30 knots. Seas 9 to 13 feet. Wave Detail: East 8 feet at 7 seconds, north northwest 8 feet at 13 seconds and north 5 feet at 10 seconds. Scattered showers. .THURSDAY...East winds 20 to 25 knots. Seas 8 to 11 feet. Wave Detail: East 8 feet at 8 seconds and northwest 6 feet at 13 seconds. Isolated showers. .THURSDAY NIGHT...East winds 20 to 25 knots. Seas 7 to 10 feet. Scattered showers. .FRIDAY...East winds 15 to 20 knots. Seas 6 to 9 feet. Scattered showers. .FRIDAY NIGHT...East winds 15 to 20 knots. Seas 6 to 9 feet. Scattered showers. .SATURDAY...East northeast winds 10 to 15 knots. Seas 6 to 9 feet. Scattered showers. .SUNDAY...East northeast winds 10 to 15 knots. Seas 6 to 9 feet, subsiding to 6 to 7 feet. Scattered showers. $$