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Miami - South Florida Local Forecast Office

5NM W Key Biscayne FL

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:NE wind around 6 kt becoming variable and less than 5 kt after midnight. Mostly clear. Bay waters smooth.

      Low: 74 °F

      NE 6kt⇓

    • Saturday

      Saturday:Variable winds less than 5 kt becoming E around 6 kt in the morning. Sunny. Bay waters smooth.

      High: 84 °F

      ⇑E 6kt

    • Saturday Night

      Saturday Night:NNE wind around 6 kt becoming variable and less than 5 kt. A slight chance of showers, mainly between 1am and 4am.   Bay waters smooth.

      Low: 74 °F

      NNE 6kt⇓

    • Sunday

      Sunday:N wind around 8 kt becoming ENE in the afternoon. A slight chance of showers after 7am.   Bay waters smooth becoming  a light chop.

      High: 83 °F

      ENE 8kt

    • Sunday Night

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

      Low: 74 °F

      NE 9kt

    • Monday

      Monday:NE wind 8 to 12 kt. Partly sunny. Bay waters a light chop.

      High: 82 °F

      NE 12kt

    • Monday Night

      Monday Night:ENE wind around 10 kt. Partly cloudy. Bay waters a light chop.

      Low: 74 °F

      ENE 10kt

    • Tuesday

      Tuesday:E wind 8 to 10 kt. Mostly sunny. Bay waters a light chop.

      High: 82 °F

      E 10kt

    • Tuesday Night

      Tuesday Night:ENE wind 5 to 7 kt. Mostly cloudy. Bay waters smooth.

      Low: 74 °F

      ENE 7kt


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:36 pm EST Nov 6, 2026
Forecast Valid: 9pm EST Nov 6, 2026-6pm EST Nov 13, 2026

View Nearby Observations

Detailed Forecast


Tonight
NE wind around 6 kt becoming variable and less than 5 kt after midnight. Mostly clear. Bay waters smooth.
Saturday
Variable winds less than 5 kt becoming E around 6 kt in the morning. Sunny. Bay waters smooth.
Saturday Night
NNE wind around 6 kt becoming variable and less than 5 kt. A slight chance of showers, mainly between 1am and 4am. Bay waters smooth.
Sunday
N wind around 8 kt becoming ENE in the afternoon. A slight chance of showers after 7am. Bay waters smooth becoming a light chop.
Sunday Night
NE wind 7 to 9 kt. Partly cloudy. Bay waters a light chop.
Monday
NE wind 8 to 12 kt. Partly sunny. Bay waters a light chop.
Monday Night
ENE wind around 10 kt. Partly cloudy. Bay waters a light chop.
Tuesday
E wind 8 to 10 kt. Mostly sunny. Bay waters a light chop.
Tuesday Night
ENE wind 5 to 7 kt. Mostly 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 80.25°W
Last Update: 3:36 pm EST Nov 6, 2026
Forecast Valid: 9pm EST Nov 6, 2026-6pm EST Nov 13, 2026
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