


Coastal Waters Forecast
Issued by NWS
Issued by NWS
216 FZPQ52 PGUM 210636 CWFPQ2 Coastal Waters/Island Forecast for Western Micronesia National Weather Service Tiyan GU 436 PM ChST Sun Sep 21 2025 Coastal waters extend out to 40 nautical miles PMZ161-212200- Palau Coastal Waters- 436 PM ChST Sun Sep 21 2025 ...POTENTIAL FOR LOCALLY HEAVY SHOWERS AND GUSTY WINDS THIS WEEK... ...SURF TO BUILD ALONG NORTH AND WEST REEFS OVER NEXT FEW DAYS... .TONIGHT...Southwest wind 5 to 10 kt. Wind waves 2 ft or less. Northwest swell 3 to 4 ft. Mostly cloudy with scattered showers and isolated thunderstorms. Lows around 79. Chance of showers 30 percent. .MONDAY...West wind 5 to 10 kt. Wind waves 2 ft or less. North swell 3 to 4 ft. Partly sunny with scattered showers and isolated thunderstorms. Highs near 86. Chance of showers 40 percent. .MONDAY NIGHT...Northwest wind 5 to 10 kt. Wind waves 2 ft or less. Northwest swell 3 to 4 ft. Mostly cloudy with scattered showers and isolated thunderstorms. Lows around 78. Chance of showers 50 percent. .TUESDAY...West wind 5 to 15 kt. Wind waves 1 to 3 ft. Northwest swell 3 to 4 ft. Cloudy with numerous showers and isolated thunderstorms. Locally heavy showers possible. Highs near 85. Chance of showers 60 percent. .TUESDAY NIGHT...West wind 10 to 15 kt with gusts to 25 kt. Wind waves 2 to 4 ft. Northwest swell 3 to 5 ft. Cloudy with numerous showers and isolated thunderstorms. Locally heavy showers possible. Lows around 76. Chance of showers 60 percent. .WEDNESDAY...West wind 15 to 20 kt. Wind waves 3 to 4 ft. Northwest swell 4 to 5 ft. Cloudy with showers likely and slight chance of thunderstorms. Locally heavy showers possible. Highs in the mid 80s. Lows in the upper 70s. Chance of showers 60 percent. .THURSDAY...Southwest wind 15 to 20 kt with gusts to 30 kt. Wind waves 3 to 5 ft. North swell 3 to 4 ft. Cloudy with showers likely and slight chance of thunderstorms. Locally heavy showers possible. Highs in the mid 80s. Lows in the upper 70s. Chance of showers 60 percent. .FRIDAY...South wind 10 to 15 kt. Wind waves 2 to 3 ft. Northwest swell 4 to 5 ft. Mostly cloudy with a 50 percent chance of showers and slight chance of thunderstorms. Highs in the mid 80s. Lows in the upper 70s. $$ PMZ171-212200- Yap Coastal Waters- 436 PM ChST Sun Sep 21 2025 ...POTENTIAL FOR LOCALLY HEAVY SHOWERS AND GUSTY WINDS THIS WEEK... ...SURF TO BUILD ALONG NORTH AND WEST REEFS OVER NEXT FEW DAYS... .TONIGHT...Northwest wind 5 to 10 kt. Wind waves 2 ft or less. Northwest swell 3 to 4 ft. Mostly cloudy. Isolated showers in the evening, then scattered showers around midnight. Isolated thunderstorms. Lows around 77. Chance of showers 50 percent. .MONDAY...Northwest wind 5 to 15 kt. Wind waves 1 to 3 ft. Northwest swell 3 to 4 ft. Mostly cloudy with scattered showers and isolated thunderstorms. Highs near 86. Chance of showers 50 percent. .MONDAY NIGHT...Northwest wind 10 to 15 kt. Wind waves 2 to 3 ft. Northwest swell 4 to 5 ft. Cloudy with numerous showers and isolated thunderstorms. Locally heavy showers possible. Lows around 76. Chance of showers 60 percent. .TUESDAY...Variable wind 5 to 15 kt. Wind waves 1 to 3 ft. Northwest swell 4 to 5 ft. Cloudy with numerous showers and isolated thunderstorms. Locally heavy showers possible. Highs near 85. Chance of showers 60 percent. .TUESDAY NIGHT...South wind 10 kt. Wind waves 2 ft or less. Northwest swell 5 to 6 ft. Mostly cloudy with scattered showers and isolated thunderstorms. Lows around 77. Chance of showers 50 percent. .WEDNESDAY...South wind 10 to 15 kt with gusts to 25 kt. Wind waves 2 to 4 ft. Northwest swell 4 to 5 ft. Mostly cloudy with a 50 percent chance of showers and slight chance of thunderstorms. Highs in the mid 80s. Lows in the upper 70s. .THURSDAY...South wind 10 to 15 kt with gusts to 25 kt. Wind waves 2 to 4 ft. North swell 4 to 5 ft. Mostly cloudy with a 50 percent chance of showers and slight chance of thunderstorms. Highs in the mid 80s. Lows in the upper 70s. .FRIDAY...South wind 15 kt. Wind waves 3 ft. North swell 4 to 6 ft. Mostly cloudy with a 50 percent chance of showers and slight chance of thunderstorms. Highs in the mid 80s. Lows in the upper 70s. $$ PMZ172-212200- Chuuk Coastal Waters- 436 PM ChST Sun Sep 21 2025 .TONIGHT...West wind 5 kt. Wind waves 2 ft or less. East swell 3 to 4 ft. Mostly cloudy with scattered showers and isolated thunderstorms. Lows around 79. Chance of showers 50 percent. .MONDAY...West to northwest wind 5 kt. Wind waves 2 ft or less. East swell 3 to 4 ft. Partly sunny with scattered showers and isolated thunderstorms. Highs near 87. Chance of showers 40 percent. .MONDAY NIGHT...Southwest wind 5 kt. Wind waves 2 ft or less. East swell 3 to 4 ft. Mostly cloudy with scattered showers and isolated thunderstorms. Lows around 78. Chance of showers 40 percent. .TUESDAY...South wind 5 to 10 kt. Wind waves 2 ft or less. East swell 3 to 4 ft. Mostly cloudy with scattered showers and isolated thunderstorms. Highs near 86. Chance of showers 50 percent. .TUESDAY NIGHT...South wind 10 kt. Wind waves 2 ft or less. East swell 3 to 4 ft. Mostly cloudy with scattered showers and isolated thunderstorms. Lows around 79. Chance of showers 40 percent. .WEDNESDAY...Southeast wind 5 to 10 kt. Wind waves 2 ft or less. Northeast swell 3 to 4 ft and east 3 ft. Mostly cloudy with chance of showers and slight chance of thunderstorms. Highs in the mid 80s. Lows in the upper 70s. Chance of showers 40 percent. .THURSDAY...Southeast wind 10 kt. Wind waves 2 ft or less. North swell 3 to 4 ft and east 3 ft. Mostly cloudy with a 40 percent chance of showers and slight chance of thunderstorms. Highs in the mid 80s. Lows in the upper 70s. .FRIDAY...Northeast wind 5 to 10 kt. Wind waves 2 ft or less. North swell 3 to 4 ft and east 3 ft. Mostly cloudy with a 30 percent chance of showers and slight chance of thunderstorms. Highs in the upper 80s. Lows in the upper 70s. $$