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Miami - South Florida Local Forecast Office

3NM WSW Key Biscayne FL

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:S wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Bay waters smooth.

      Low: 74 °F

      S 6kt⇓

    • Saturday

      Saturday:Variable winds less than 5 kt becoming S 5 to 10 kt in the morning. Mostly sunny. Bay waters smooth becoming  a light chop.

      High: 81 °F

      ⇑S 10kt

    • Saturday Night

      Saturday Night:S wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Bay waters a light chop becoming  smooth.

      Low: 74 °F

      S 9kt⇓

    • Sunday

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

      High: 82 °F

      ⇑S 9kt

    • Sunday Night

      Sunday Night:SSW wind 7 to 9 kt becoming WSW after midnight. Mostly cloudy. Bay waters a light chop becoming  smooth.

      Low: 75 °F

      SSW 9kt

    • Monday

      Monday:WSW wind 8 to 11 kt. A chance of showers.   Bay waters a light chop.

      High: 82 °F

      WSW 11kt

    • Monday Night

      Monday Night:NW wind 12 to 17 kt becoming N after midnight. Mostly cloudy. Bay waters a light chop.

      Low: 72 °F

      N 17kt

    • Tuesday

      Tuesday:ENE wind 11 to 14 kt. A slight chance of showers and thunderstorms after 1pm.   Bay waters a moderate chop becoming  a light chop.

      High: 77 °F

      ENE 14kt

    • Tuesday Night

      Tuesday Night:ENE wind 8 to 11 kt. A slight chance of showers.   Bay waters a light chop.

      Low: 71 °F

      ENE 11kt


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:31 pm EST Dec 5, 2025
Forecast Valid: 8pm EST Dec 5, 2025-6pm EST Dec 12, 2025

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Detailed Forecast


Tonight
S wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Bay waters smooth.
Saturday
Variable winds less than 5 kt becoming S 5 to 10 kt in the morning. Mostly sunny. Bay waters smooth becoming a light chop.
Saturday Night
S wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Bay waters a light chop becoming smooth.
Sunday
Variable winds less than 5 kt becoming S 5 to 9 kt in the morning. Mostly sunny. Bay waters smooth becoming a light chop.
Sunday Night
SSW wind 7 to 9 kt becoming WSW after midnight. Mostly cloudy. Bay waters a light chop becoming smooth.
Monday
WSW wind 8 to 11 kt. A chance of showers. Bay waters a light chop.
Monday Night
NW wind 12 to 17 kt becoming N after midnight. Mostly cloudy. Bay waters a light chop.
Tuesday
ENE wind 11 to 14 kt. A slight chance of showers and thunderstorms after 1pm. Bay waters a moderate chop becoming a light chop.
Tuesday Night
ENE wind 8 to 11 kt. A slight chance of showers. Bay waters a light chop.

*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: 2:31 pm EST Dec 5, 2025
Forecast Valid: 8pm EST Dec 5, 2025-6pm EST Dec 12, 2025
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