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Key Biscayne FL

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 12:31 am EST Dec 10, 2025
Forecast Valid: 2am EST Dec 10, 2025-6pm EST Dec 16, 2025

Wednesday

N wind 5 to 7 kt becoming W in the afternoon. Mostly sunny. Bay waters smooth.

Wednesday Night

NW wind 7 to 14 kt. Mostly clear. Bay waters a light chop.

Thursday

NNW wind 9 to 13 kt. Mostly sunny. Bay waters a light chop.

Thursday Night

N wind around 10 kt. Mostly clear. Bay waters a light chop.

Friday

ENE wind around 10 kt. Sunny. Bay waters a light chop.

Friday Night

E wind around 9 kt. Partly cloudy. Bay waters a light chop.

Saturday

E wind 9 to 13 kt. Mostly sunny. Bay waters a light chop becoming a moderate chop.

Saturday Night

E wind 10 to 12 kt. A slight chance of showers. Bay waters a light chop.

Sunday

ENE wind 9 to 12 kt. A chance of showers. Bay waters a light chop.

*Notices:

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.
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.