


Coastal Waters Forecast
Issued by NWS
Issued by NWS
602 FZHW51 PHFO 010104 CWFHI1 Generalized Statewide Coastal Waters Forecast for Hawaii National Weather Service Honolulu HI 303 PM HST Sun Aug 31 2025 .Synopsis for Hawaiian coastal waters... Weak high pressure northeast of the state will remain displaced by a large low far to the north, keeping moderate trades in place. A low with deep tropical moisture will pass just south of the state through Monday. $$ Hawaiian waters within 40 nautical miles including the channels- .TONIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated showers. .MONDAY...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave Detail: East southeast 3 feet at 5 seconds and north 3 feet at 12 seconds. Scattered showers. .MONDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: East southeast 3 feet at 5 seconds, north 3 feet at 11 seconds and north northwest 3 feet at 15 seconds. Isolated showers. .TUESDAY...East winds 10 to 15 knots. Seas 5 to 7 feet. Wave Detail: East southeast 3 feet at 5 seconds and northwest 3 feet at 14 seconds. Isolated showers. .TUESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet. Isolated showers. .WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Isolated showers. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Isolated showers. .THURSDAY...East winds 15 to 20 knots, easing to 10 to 15 knots. Seas 4 to 5 feet. Isolated showers. .FRIDAY...East winds 10 to 15 knots. Seas 4 to 6 feet. Isolated showers through the night. Scattered showers through the day. $$