FZHW61 PHFO 210926 OFFN10 NAVTEX MARINE FORECAST FOR HAWAIIAN WATERS NATIONAL WEATHER SERVICE HONOLULU HI 1126 PM HST SAT JUN 20 2026 ...Please refer to Coastal Waters Forecasts available through NOAA Weather Radio and other means for detailed coastal forecasts... .Synopsis...A weak high pressure ridge north of the Hawaiian Islands will strengthen by the middle of next week, increasing trade winds and building seas into next weekend. $$ Hawaiian waters within 40 nautical miles including the channels- .TONIGHT...East northeast winds 15 to 20 knots. Seas 5 to 6 feet. Wave Detail: South 4 feet at 14 seconds and east southeast 3 feet at 6 seconds. Isolated showers. .SUNDAY...East northeast winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: South 4 feet at 13 seconds and east southeast 3 feet at 5 seconds. Isolated showers. .SUNDAY NIGHT...East northeast winds 10 to 15 knots. Seas 4 to 6 feet. Wave Detail: South 4 feet at 18 seconds and east 3 feet at 5 seconds. Isolated showers. .MONDAY...East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: East 3 feet at 5 seconds and south 3 feet at 16 seconds. Isolated showers. .MONDAY NIGHT THROUGH TUESDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Scattered showers. .WEDNESDAY AND THURSDAY...East northeast winds 15 to 20 knots. Seas 5 to 8 feet. Scattered showers. $$ Hawaiian Offshore Waters- .REST OF TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SUNDAY...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SUNDAY NIGHT AND MONDAY...E winds 10 to 15 kt. Seas 4 to 6 ft. .MONDAY...E winds 10 to 15 kt. Seas 4 to 6 ft. .MONDAY NIGHT THROUGH WEDNESDAY...E winds 10 to 20 kt. Seas 5 to 7 ft. .THURSDAY...E winds 15 to 25 kt. Seas 6 to 8 ft. $$