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Miami - South Florida Local Forecast Office

3NM WSW Key Biscayne FL

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:S wind 5 to 9 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Bay waters a light chop becoming  smooth.

      Low: 75 °F

      S 9kt⇓

    • Sunday

      Sunday:Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. Mostly sunny. Bay waters smooth becoming  a light chop.

      High: 82 °F

      ⇑S 9kt

    • Sunday Night

      Sunday Night:SSW wind 7 to 9 kt. Partly cloudy. Bay waters a light chop becoming  smooth.

      Low: 75 °F

      SSW 9kt

    • Monday

      Monday:WSW wind 8 to 12 kt. A chance of showers and thunderstorms.   Bay waters a light chop.

      High: 82 °F

      WSW 12kt

    • Monday Night

      Monday Night:N wind 12 to 15 kt. Mostly cloudy. Bay waters a light chop.

      Low: 72 °F

      N 15kt

    • Tuesday

      Tuesday:N wind 10 to 15 kt becoming ENE in the afternoon. A slight chance of showers and thunderstorms after 1pm.   Bay waters a light chop.

      High: 78 °F

      N 15kt

    • Tuesday Night

      Tuesday Night:E wind 7 to 9 kt. A slight chance of showers and thunderstorms before 1am.   Bay waters a light chop.

      Low: 72 °F

      E 9kt

    • Wednesday

      Wednesday:E wind around 8 kt becoming S in the afternoon. Partly sunny. Bay waters a light chop becoming  smooth.

      High: 79 °F

      ESE 8kt

    • Wednesday Night

      Wednesday Night:W wind 5 to 7 kt becoming NNW after midnight. Partly cloudy. Bay waters smooth.

      Low: 69 °F

      NNW 7kt


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:32 pm EST Dec 6, 2025
Forecast Valid: 5pm EST Dec 6, 2025-6pm EST Dec 13, 2025

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Detailed Forecast


Tonight
S wind 5 to 9 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Bay waters a light chop becoming smooth.
Sunday
Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. Mostly sunny. Bay waters smooth becoming a light chop.
Sunday Night
SSW wind 7 to 9 kt. Partly cloudy. Bay waters a light chop becoming smooth.
Monday
WSW wind 8 to 12 kt. A chance of showers and thunderstorms. Bay waters a light chop.
Monday Night
N wind 12 to 15 kt. Mostly cloudy. Bay waters a light chop.
Tuesday
N wind 10 to 15 kt becoming ENE in the afternoon. A slight chance of showers and thunderstorms after 1pm. Bay waters a light chop.
Tuesday Night
E wind 7 to 9 kt. A slight chance of showers and thunderstorms before 1am. Bay waters a light chop.
Wednesday
E wind around 8 kt becoming S in the afternoon. Partly sunny. Bay waters a light chop becoming smooth.
Wednesday Night
W wind 5 to 7 kt becoming NNW after midnight. Partly cloudy. Bay waters smooth.

*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: 25.67°N 80.2°W
Last Update: 4:32 pm EST Dec 6, 2025
Forecast Valid: 5pm EST Dec 6, 2025-6pm EST Dec 13, 2025
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