


Coastal Waters Forecast
Issued by NWS
Issued by NWS
189 FZHW51 PHFO 181335 CWFHI1 Generalized Statewide Coastal Waters Forecast for Hawaii National Weather Service Honolulu HI 335 AM HST Mon Aug 18 2025 .Synopsis for Hawaiian coastal waters... Surface high pressure centered far north of the islands will help maintain fresh to locally strong east trade winds through the week. $$ Hawaiian waters within 40 nautical miles including the channels- ...SMALL CRAFT ADVISORY THROUGH EARLY WEDNESDAY MORNING FOR MAALAEA BAY...THE PAILOLO AND ALENUIHAHA CHANNELS AND WATERS SOUTH OF THE BIG ISLAND... .TODAY...East winds 20 to 25 knots. Seas 5 to 7 feet. Wave Detail: East 5 feet at 6 seconds. A chance of showers. .TONIGHT...East winds 20 to 25 knots. Seas 4 to 6 feet. Wave Detail: East 5 feet at 6 seconds. A chance of showers. .TUESDAY...East winds 20 to 25 knots. Seas 5 to 7 feet. A slight chance of showers. .TUESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 5 to 8 feet. A slight chance of showers. .WEDNESDAY...East northeast winds 20 to 25 knots. Seas 5 to 8 feet. A slight chance of showers. .WEDNESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 5 to 8 feet. A chance of showers. .THURSDAY...East winds 20 to 25 knots. Seas 5 to 8 feet. A slight chance of showers through the night. A chance of showers through the day. .FRIDAY...East northeast winds 20 to 25 knots. Seas 5 to 8 feet. A slight chance of showers through the night. A chance of showers through the day. $$