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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Thursday

      Thursday:Variable winds less than 5 kt becoming WSW around 6 kt in the afternoon. Sunny. Seas 1 ft or less.

      ⇑WSW 6kt
      < 1ft

    • Thursday Night

      Thursday Night:S wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.

      S 8kt⇓
      < 1ft

    • Friday

      Friday:Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Friday Night

      Friday Night:S wind 5 to 7 kt becoming variable and less than 5 kt. Partly cloudy. Seas 1 ft or less.

      S 7kt⇓
      < 1ft

    • Saturday

      Saturday:SW wind 7 to 10 kt increasing to 10 to 13 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      ⇑SW 13kt
      < 1ft

    • Saturday Night

      Saturday Night:W wind 7 to 10 kt. Showers likely, mainly before 2am. Seas 1 ft or less.

      W 10kt
      < 1ft

    • Sunday

      Sunday:W wind around 8 kt becoming NNW in the afternoon. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.

      NNW 8kt
      < 1ft

    • Sunday Night

      Sunday Night:NNE wind 9 to 13 kt becoming ENE in the evening. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Seas 1 ft or less.

      ENE 13kt
      < 1ft

    • Monday

      Monday:ENE wind 10 to 14 kt. Sunny. Seas 1 ft or less.

      ENE 14kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 1:59 am EDT Jun 4, 2026
Forecast Valid: 2am EDT Jun 4, 2026-6pm EDT Jun 10, 2026

View Nearby Observations

Detailed Forecast


Thursday
Variable winds less than 5 kt becoming WSW around 6 kt in the afternoon. Sunny. Seas 1 ft or less.
Thursday Night
S wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.
Friday
Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.
Friday Night
S wind 5 to 7 kt becoming variable and less than 5 kt. Partly cloudy. Seas 1 ft or less.
Saturday
SW wind 7 to 10 kt increasing to 10 to 13 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Saturday Night
W wind 7 to 10 kt. Showers likely, mainly before 2am. Seas 1 ft or less.
Sunday
W wind around 8 kt becoming NNW in the afternoon. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Sunday Night
NNE wind 9 to 13 kt becoming ENE in the evening. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Seas 1 ft or less.
Monday
ENE wind 10 to 14 kt. Sunny. Seas 1 ft or less.

Winds and seas may be higher in and near tstms.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 40.91°N 73.39°W
Last Update: 1:59 am EDT Jun 4, 2026
Forecast Valid: 2am EDT Jun 4, 2026-6pm EDT Jun 10, 2026
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