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Miami - South Florida Local Forecast Office

Key Biscayne FL

Marine Point Forecast

[NOTICE]

Today
High: 85 °F
W 7kt
Tonight
Low: 77 °F
W 7kt
Tuesday
High: 84 °F
S 10kt
Tuesday Night
Low: 80 °F
SE 12kt
Wednesday
High: 86 °F
SSE 14kt
Wednesday Night
Low: 83 °F
ESE 13kt
Thursday
High: 87 °F
SE 14kt
Thursday Night
Low: 84 °F
E 13kt
Friday
High: 87 °F
ESE 14kt

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:47 am EDT Jul 14, 2025
Forecast Valid: 6am EDT Jul 14, 2025-6pm EDT Jul 20, 2025

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Detailed Forecast

Today

WSW wind 5 to 7 kt becoming S in the afternoon. Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. Bay waters smooth.

Tonight

W wind around 7 kt becoming SW in the evening. Showers and thunderstorms, mainly before 3am, then showers likely and possibly a thunderstorm after 4am. Some of the storms could produce heavy rainfall. Bay waters smooth.

Tuesday

S wind 8 to 10 kt. Showers and thunderstorms likely before 7am, then showers and possibly a thunderstorm between 7am and 2pm, then showers and thunderstorms after 2pm. Some of the storms could produce heavy rainfall. Bay waters a light chop.

Tuesday Night

SE wind 9 to 12 kt. Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely and possibly a thunderstorm after 2am. Bay waters a light chop.

Wednesday

SSE wind 11 to 14 kt. Showers and thunderstorms likely, mainly before 2pm. Bay waters a moderate chop becoming a light chop.

Wednesday Night

ESE wind 9 to 13 kt. A chance of showers and thunderstorms. Bay waters a light chop becoming a moderate chop.

Thursday

SE wind 11 to 14 kt. Showers and thunderstorms likely, mainly before 2pm. Bay waters a moderate chop.

Thursday Night

E wind 10 to 13 kt. A chance of showers and thunderstorms, mainly before 8pm. Bay waters a light chop becoming a moderate chop.

Friday

ESE wind 11 to 14 kt. A chance of showers and thunderstorms. Bay waters a moderate chop becoming a light chop.

Winds and waves higher in and near tstms.

*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.