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4NM WSW Biscayne Bay FL

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 6:47 pm EDT Apr 21, 2026
Forecast Valid: 1am EDT Apr 22, 2026-6pm EDT Apr 28, 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING...

Wednesday

E wind 17 to 21 kt. Mostly sunny. Bay waters choppy in exposed areas.

Wednesday Night

E wind 15 to 19 kt. A slight chance of showers before 8pm. Bay waters choppy in exposed areas becoming a moderate chop.

Thursday

E wind around 14 kt. Partly sunny. Bay waters a moderate chop.

Thursday Night

E wind 11 to 13 kt. A slight chance of showers after 2am. Bay waters a moderate chop becoming a light chop.

Friday

ESE wind around 10 kt. A chance of showers, with thunderstorms also possible after 11am. Bay waters a light chop.

Friday Night

ESE wind 6 to 8 kt. A slight chance of showers before 8pm. Bay waters a light chop.

Saturday

ESE wind 5 to 8 kt. A slight chance of showers and thunderstorms after 2pm. Bay waters smooth becoming a light chop.

Saturday Night

SE wind around 6 kt. A slight chance of showers and thunderstorms before 8pm. Bay waters smooth.

Sunday

Variable winds less than 5 kt becoming SSE 5 to 7 kt in the morning. Sunny. Bay waters smooth.

*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.