


Coastal Waters Forecast
Issued by NWS Upton, NY
Issued by NWS Upton, NY
419 FZUS51 KOKX 311759 CWFOKX Coastal Waters Forecast National Weather Service New York NY 159 PM EDT Sun Aug 31 2025 Montauk Point NY to Sandy Hook NJ out 20 nm offshore, including Long Island Sound, the Long Island Bays, and New York Harbor ANZ300-010615- 159 PM EDT Sun Aug 31 2025 .Synopsis for the Long Island and Connecticut coastal waters... A large area of high pressure will prevail from the Great Lakes east into the Mid Atlantic and Northeast states through Tuesday before building offshore Wednesday. High pressure weakens on Thursday, giving way to a frontal system Thursday night into Friday. $$ ANZ350-010615- Moriches Inlet NY to Montauk Point NY out 20 nm- 159 PM EDT Sun Aug 31 2025 .TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. .MON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds. .MON NIGHT...NE winds around 10 kt. Seas around 3 ft. Wave Detail: E 3 ft at 7 seconds. .TUE...NE winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: E 4 ft at 8 seconds. .TUE NIGHT...SE winds around 5 kt, becoming SW after midnight. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: SE 4 ft at 8 seconds. .WED...SW winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 8 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .THU...S winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...S winds 10 to 15 kt. Seas around 3 ft. Chance of showers. .FRI...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Chance of showers. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Chance of showers. $$ ANZ353-010615- Fire Island Inlet NY to Moriches Inlet NY out 20 nm- 159 PM EDT Sun Aug 31 2025 .TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds. .MON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds and SE 2 ft at 8 seconds. .MON NIGHT...NE winds 10 to 15 kt. Seas around 3 ft. Wave Detail: E 3 ft at 7 seconds. .TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 8 seconds. .TUE NIGHT...SE winds around 5 kt, becoming SW after midnight. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 8 seconds. .WED...SW winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 8 seconds. .WED NIGHT...S winds 5 to 10 kt. Seas around 3 ft. .THU...S winds 10 to 15 kt. Seas around 3 ft. .THU NIGHT...S winds 10 to 15 kt. Seas around 3 ft. Chance of showers. .FRI...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Chance of showers. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Chance of showers. $$ ANZ355-010615- Sandy Hook NJ to Fire Island Inlet NY out 20 nm- 159 PM EDT Sun Aug 31 2025 .TONIGHT...SE winds around 5 kt, becoming NE late. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. .MON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 5 seconds and SE 2 ft at 8 seconds. .MON NIGHT...NE winds around 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds. .TUE...NE winds around 10 kt, becoming E in the afternoon. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: E 3 ft at 7 seconds. .TUE NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: SE 3 ft at 8 seconds. .WED...W winds around 5 kt, becoming S in the afternoon. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 3 ft at 8 seconds. .WED NIGHT...S winds 10 to 15 kt, becoming SW 5 to 10 kt after midnight. Seas 2 to 3 ft. .THU...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Chance of showers. .FRI...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Chance of showers. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Chance of showers. $$ ANZ332-010615- Long Island Sound East of the Mouth of the Connecticut River- 159 PM EDT Sun Aug 31 2025 .TONIGHT...SE winds around 5 kt, becoming NE around 5 kt after midnight. Seas 1 ft or less. Wave Detail: E 1 ft at 7 seconds. .MON...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 1 ft at 2 seconds and E 1 ft at 7 seconds. .MON NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 ft at 3 seconds. .TUE...NE winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds. .TUE NIGHT...SE winds around 5 kt, becoming SW around 5 kt after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds. .WED...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .THU...S winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...S winds around 10 kt. Seas around 2 ft. Chance of showers. .FRI...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Chance of showers and tstms. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Chance of showers. Winds and seas may be higher in and near tstms. $$ ANZ331-010615- Long Island Sound East of New Haven CT/Port Jefferson NY to the Mouth of the Connecticut River- 159 PM EDT Sun Aug 31 2025 .TONIGHT...S winds around 5 kt, becoming SE late this evening, then becoming light and variable after midnight, becoming NE around 5 kt late. Seas 1 ft or less. .MON...NE winds 5 to 10 kt, becoming E in the afternoon. Seas 1 ft or less. Wave Detail: NE 1 ft at 2 seconds. .MON NIGHT...NE winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: E 1 ft at 2 seconds. .TUE...NE winds 5 to 10 kt, becoming E in the afternoon. Seas 1 ft or less. Wave Detail: NE 1 ft at 2 seconds. .TUE NIGHT...S winds around 5 kt, becoming SW around 5 kt after midnight. Seas 1 ft or less. .WED...W winds around 5 kt, becoming S in the afternoon. Seas 1 ft or less. Wave Detail: S 1 ft at 2 seconds. .WED NIGHT...SW winds 5 to 10 kt. Seas 1 ft or less. .THU...S winds 5 to 10 kt. Seas 1 ft or less. .THU NIGHT...S winds around 10 kt. Seas 1 ft or less. Chance of showers. .FRI...S winds around 10 kt with gusts up to 20 kt. Seas 1 ft or less. Showers likely. .FRI NIGHT...S winds 5 to 10 kt with gusts up to 20 kt. Seas 1 ft or less. Chance of showers. $$ ANZ335-010615- Long Island Sound West of New Haven CT/Port Jefferson NY- 159 PM EDT Sun Aug 31 2025 .TONIGHT...SE winds around 5 kt, becoming NE late. Seas 1 ft or less. .MON...NE winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: NE 1 ft at 2 seconds. .MON NIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas 1 ft or less. Wave Detail: E 1 ft at 3 seconds. .TUE...NE winds 5 to 10 kt, becoming E in the afternoon. Seas 1 ft or less. Wave Detail: NE 1 ft at 2 seconds. .TUE NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 1 ft or less. .WED...W winds around 5 kt, becoming S in the afternoon. Seas 1 ft or less. .WED NIGHT...S winds 5 to 10 kt. Seas 1 ft or less. .THU...S winds 10 to 15 kt with gusts up to 20 kt. Seas 1 ft or less. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 1 ft or less. Chance of showers. .FRI...S winds 10 to 15 kt with gusts up to 20 kt. Seas 1 ft or less. Showers likely. .FRI NIGHT...S winds 10 to 15 kt. Seas 1 ft or less. Chance of showers. $$ ANZ338-010615- New York Harbor- 159 PM EDT Sun Aug 31 2025 .TONIGHT...SE winds 5 to 10 kt, becoming NE late. Waves 1 ft or less. .MON...NE winds 5 to 10 kt, becoming E 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 ft or less, then around 2 ft in the afternoon. Wave Detail: NE 1 ft at 2 seconds, becoming E 1 ft at 3 seconds. .MON NIGHT...E winds 5 to 10 kt, becoming NE after midnight. Waves 1 to 2 ft. Wave Detail: E 1 ft at 3 seconds. .TUE...NE winds 5 to 10 kt, becoming E in the afternoon. Waves 1 to 2 ft. .TUE NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves around 2 ft in the evening, then 1 ft or less. .WED...SW winds around 5 kt, becoming S in the afternoon. Waves 1 to 2 ft. .WED NIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Waves 1 to 2 ft. .THU...S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Showers likely. .FRI...S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Chance of showers. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves 1 to 2 ft. Chance of showers. $$ ANZ340-010615- Peconic and Gardiners Bays- 159 PM EDT Sun Aug 31 2025 .TONIGHT...SE winds around 5 kt this afternoon and evening, becoming light and variable, then becoming NE around 5 kt late. Waves 1 ft or less. .MON...NE winds 5 to 10 kt. Waves 1 ft or less. .MON NIGHT...NE winds 5 to 10 kt. Waves 1 ft or less. .TUE...NE winds 5 to 10 kt, becoming E in the afternoon. Waves 1 ft or less. .TUE NIGHT...SE winds around 5 kt, becoming SW after midnight. Waves 1 ft or less. .WED...SW winds around 5 kt, becoming S in the afternoon. Waves 1 ft or less. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft or less. .THU...S winds 5 to 10 kt. Waves 1 ft or less. .THU NIGHT...S winds 5 to 10 kt. Waves 1 ft or less. Chance of showers. .FRI...S winds 5 to 10 kt with gusts up to 20 kt. Waves 1 ft or less. Chance of showers. .FRI NIGHT...S winds 5 to 10 kt. Waves 1 ft or less. Chance of showers. $$ ANZ345-010615- South Shore Bays from Jones Inlet through Shinnecock Bay- 159 PM EDT Sun Aug 31 2025 .TONIGHT...SE winds around 5 kt this afternoon and evening, becoming light and variable, then becoming NE around 5 kt late. Waves 1 ft or less. .MON...E winds 5 to 10 kt. Waves 1 ft or less. .MON NIGHT...NE winds 5 to 10 kt. Waves 1 ft or less. .TUE...NE winds 5 to 10 kt, becoming E in the afternoon. Waves 1 ft or less. .TUE NIGHT...S winds around 5 kt, becoming SW around 5 kt after midnight. Waves 1 ft or less. .WED...W winds around 5 kt, becoming S in the afternoon. Waves 1 ft or less. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft or less. .THU...S winds 5 to 10 kt. Waves 1 ft or less. .THU NIGHT...S winds around 10 kt. Waves 1 ft or less. Chance of showers. .FRI...S winds 10 to 15 kt with gusts up to 20 kt. Waves 1 ft or less. Chance of showers. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves 1 ft or less. Chance of showers. $$