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Miami - South Florida Local Forecast Office

5NM WNW Key Biscayne FL

Marine Point Forecast

[NOTICE]

Today
High: 79 °F
Light Wind
Tonight
Low: 69 °F
NNE 15kt
Monday
High: 75 °F
NE 14kt
Monday Night
Low: 70 °F
NE 11kt
Tuesday
High: 76 °F
NE 11kt
Tuesday Night
Low: 69 °F
ENE 9kt
Wednesday
High: 77 °F
SW 9kt
Wednesday Night
Low: 63 °F
W 8kt
Thursday
High: 75 °F
W 14kt

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:31 am EST Jan 11, 2026
Forecast Valid: 5am EST Jan 11, 2026-6pm EST Jan 17, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY

Today

Variable winds 5 kt or less. A slight chance of showers before noon, then a slight chance of showers after 3pm. Bay waters smooth.

Tonight

ENE wind 5 to 15 kt becoming N in the evening. A chance of showers, mainly between 1am and 4am. Bay waters a light chop.

Monday

NE wind 12 to 14 kt. A slight chance of showers. Bay waters a moderate chop.

Monday Night

NE wind 9 to 11 kt. Mostly cloudy. Bay waters a light chop.

Tuesday

NE wind 9 to 11 kt. A slight chance of showers. Bay waters a light chop.

Tuesday Night

ENE wind 5 to 9 kt. Mostly cloudy. Bay waters a light chop becoming smooth.

Wednesday

SSE wind 5 to 9 kt becoming SW in the afternoon. A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Bay waters smooth becoming a light chop.

Wednesday Night

W wind around 8 kt. A chance of showers and thunderstorms. Bay waters smooth.

Thursday

W wind 9 to 14 kt. A chance of showers, mainly before 1pm. 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.