FZHW51 PHFO 201337 CWFHI1 Generalized Statewide Coastal Waters Forecast for Hawaii National Weather Service Honolulu HI 337 AM HST Sat Jun 20 2026 .Synopsis for Hawaiian coastal waters... Light to moderate trades continue through the weekend as a weak ridge remains northeast of the area and a front passes far north. The ridge will strengthen north of the area Monday as the front dissipates, increasing trade wind speeds. $$ Hawaiian waters within 40 nautical miles including the channels- .TODAY...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave Detail: East southeast 3 feet at 5 seconds and south 3 feet at 15 seconds. .TONIGHT...East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: East southeast 3 feet at 5 seconds and south 3 feet at 14 seconds. Isolated showers. .SUNDAY...East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: East southeast 3 feet at 5 seconds and south 3 feet at 13 seconds. Isolated showers. .SUNDAY NIGHT...East northeast winds 10 to 15 knots. Seas 4 to 6 feet. Wave Detail: East southeast 3 feet at 6 seconds and south 3 feet at 18 seconds. Isolated showers. .MONDAY THROUGH WEDNESDAY...East northeast winds 15 to 20 knots. Seas 4 to 7 feet. Scattered showers. $$