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Miami - South Florida Local Forecast Office

Key Biscayne FL

Marine Point Forecast

[NOTICE]

Today
High: 86 °F
W 7kt
Tonight
Low: 79 °F
WSW 10kt
Friday
High: 84 °F
⇑SE 10kt
Friday Night
Low: 81 °F
SSE 9kt
Saturday
High: 84 °F
ESE 10kt
Saturday Night
Low: 82 °F
ESE 13kt
Sunday
High: 84 °F
E 13kt
Sunday Night
Low: 82 °F
E 15kt
Monday
High: 83 °F
E 14kt

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:01 am EDT May 14, 2026
Forecast Valid: 10am EDT May 14, 2026-6pm EDT May 20, 2026

View Nearby Observations

Detailed Forecast

Today

W wind around 7 kt becoming SSW in the afternoon. A slight chance of showers and thunderstorms after 2pm. Bay waters smooth.

Tonight

WSW wind 7 to 10 kt becoming WNW in the evening. Mostly clear. Bay waters a light chop.

Friday

Variable winds less than 5 kt becoming SE 5 to 10 kt in the afternoon. Sunny. Bay waters smooth becoming a light chop.

Friday Night

SSE wind 6 to 9 kt. A slight chance of showers and thunderstorms after 2am. Bay waters a light chop becoming smooth.

Saturday

ESE wind 8 to 10 kt. A slight chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am. Bay waters a light chop.

Saturday Night

ESE wind around 13 kt. A chance of showers and thunderstorms. Bay waters a moderate chop.

Sunday

E wind around 13 kt. A chance of showers and thunderstorms. Bay waters a moderate chop becoming a light chop.

Sunday Night

E wind around 15 kt. A chance of showers and thunderstorms. Bay waters a moderate chop.

Monday

E wind around 14 kt. A chance of showers and thunderstorms. Bay waters a moderate 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.