Your Ultimate Boating Resource

HomeForecastsFlorida ForecastsKey Biscayne, FL Coastal Forecast

Key Biscayne, FL Coastal Forecast

FZUS52 KMFL 282031
CWFMFL

Coastal Waters Forecast for Florida
National Weather Service Miami FL
331 PM EST Sun Dec 28 2025

Atlantic coastal waters from Jupiter Inlet to Ocean Reef out to
60 nm and Gulf coastal waters from East Cape Sable to Chokoloskee
out 20 nm and Chokoloskee to Bonita Beach out 60 nm...including the
waters of Biscayne Bay and Lake Okeechobee.

Seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves.

AMZ600-GMZ606-290900-
331 PM EST Sun Dec 28 2025

.Synopsis for Jupiter Inlet to Ocean Reef FL out to 60 nm and for
East Cape Sable to Bonita Beach FL out to 60 nm...

Relatively light winds will prevail into early next week as a ridge
of high pressure remains in place over the Gulf. A few isolated
showers will remain possible across the local Atlantic waters today.
Seas should remain below 3 ft. Winds and seas will build as early as
Monday night as a cold front approaches the region.

Gulf Stream Hazards: None.

The approximate location of the west wall of the Gulf Stream as of
Dec 06, 2025.

1 nautical miles north northeast of Fowey Rocks.
1 nautical miles east of Port Everglades.
3 nautical miles east northeast of Lake Worth.
6 nautical miles east northeast of Jupiter Inlet.

This data courtesy of the Naval Oceanographic Office.

$$

AMZ650-670-290900-
Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM-
Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM-
331 PM EST Sun Dec 28 2025

.TONIGHT...E winds around 5 kt, becoming SW after midnight. Seas
2 to 3 ft. Wave Detail: N 2 ft at 6 seconds and NE 2 ft at
10 seconds. Intracoastal waters smooth.
.MON...W winds 5 to 10 kt. Seas 2 to 4 ft, occasionally to 5 ft.
Wave Detail: NE 3 ft at 12 seconds and NW 2 ft at 8 seconds.
Intracoastal waters light chop.
.MON NIGHT...W winds 10 to 15 kt. Seas 3 to 5 ft, occasionally to
6 ft. Wave Detail: NW 4 ft at 5 seconds and NE 3 ft at 11 seconds.
Intracoastal waters light chop.
.TUE...NW winds 15 to 20 kt. Seas 5 to 7 ft, occasionally to 9 ft.
Wave Detail: N 7 ft at 6 seconds and NE 2 ft at 10 seconds.
Intracoastal waters a moderate chop. A chance of showers in the
morning.
.TUE NIGHT...N winds 15 to 20 kt. Seas 5 to 7 ft, occasionally to
9 ft. Wave Detail: N 7 ft at 8 seconds. Intracoastal waters a
moderate chop.
.WED...NW winds 10 to 15 kt. Seas 4 to 6 ft, occasionally to 8 ft.
Wave Detail: N 6 ft at 7 seconds. Intracoastal waters light chop.
.WED NIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft, occasionally to
5 ft. Intracoastal waters light chop.
.THU THROUGH FRI...SW winds 10 to 15 kt. Seas 2 to 4 ft,
occasionally to 5 ft. Intracoastal waters light chop.

$$

AMZ651-671-290900-
Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM-
Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM
excluding the territorial waters of Bahamas-
331 PM EST Sun Dec 28 2025

.TONIGHT...E winds around 5 kt, becoming S late. Seas around 2 ft.
Wave Detail: N 2 ft at 7 seconds. Intracoastal waters smooth.
.MON...W winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. Seas around 2 ft. Wave Detail: N 2 ft at 6 seconds and SW
1 foot at 3 seconds. Intracoastal waters light chop.
.MON NIGHT...W winds 5 to 10 kt, becoming NW 10 to 15 kt after
midnight. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and N
1 foot at 10 seconds. Intracoastal waters light chop.
.TUE...NW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: N 4 ft
at 5 seconds. Intracoastal waters a moderate chop.
.TUE NIGHT AND WED...N winds 15 to 20 kt. Seas 4 to 6 ft,
occasionally to 8 ft. Wave Detail: N 6 ft at 8 seconds. Intracoastal
waters a moderate chop.
.WED NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft, occasionally to
6 ft. Wave Detail: NW 4 ft at 7 seconds. Intracoastal waters light
chop.
.THU THROUGH FRI...S winds 10 to 15 kt. Seas 2 to 4 ft, occasionally
to 5 ft. Intracoastal waters light chop.

$$

GMZ656-657-676-290900-
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
331 PM EST Sun Dec 28 2025

.TONIGHT...N winds around 5 kt, becoming NE after midnight. Seas
less than 2 ft or less. Bay and inland waters smooth.
.MON...N winds around 5 kt, becoming W in the afternoon. Seas less
than 2 ft or less. Bay and inland waters light chop.
.MON NIGHT...NW winds 5 to 10 kt, increasing to 15 to 20 kt after
midnight. Seas less than 2 ft or less, then around 2 ft after
midnight. Wave Detail: NW 1 foot at 2 seconds, becoming NW 2 ft at
3 seconds. Bay and inland waters a moderate chop.
.TUE...N winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft,
occasionally to 6 ft. Wave Detail: NW 5 ft at 5 seconds. Bay and
inland waters a moderate chop.
.TUE NIGHT AND WED...N winds 15 to 20 kt. Seas 3 to 5 ft,
occasionally to 6 ft. Wave Detail: NW 5 ft at 7 seconds. Bay and
inland waters a moderate chop.
.WED NIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NW
3 ft at 6 seconds. Bay and inland waters light chop.
.THU THROUGH FRI...SE winds 5 to 10 kt. Seas 1 to 2 ft. Bay and
inland waters light chop.

$$

AMZ610-290900-
Lake Okeechobee-
331 PM EST Sun Dec 28 2025

.TONIGHT...E winds around 5 kt, becoming W after midnight. Lake
waters smooth.
.MON...W winds 5 to 10 kt. Lake waters light chop.
.MON NIGHT...W winds 5 to 10 kt, becoming NW 10 to 15 kt after
midnight. Lake waters a moderate chop.
.TUE...NW winds 10 to 15 kt. Lake waters a moderate chop.
.TUE NIGHT...N winds 10 to 15 kt. Lake waters a moderate chop.
.WED AND WED NIGHT...NW winds 10 to 15 kt. Lake waters a moderate
chop.
.THU THROUGH FRI...SW winds 5 to 10 kt. Lake waters light chop.

$$

AMZ630-290900-
Biscayne Bay-
331 PM EST Sun Dec 28 2025

.TONIGHT...SE winds around 5 kt, becoming S around 5 kt late this
evening, then becoming W after midnight. Smooth.
.MON...NW winds around 5 kt, becoming S in the afternoon. Light
chop.
.MON NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Light
chop.
.TUE...NW winds 10 to 15 kt. A moderate chop.
.TUE NIGHT THROUGH WED NIGHT...NW winds 15 to 20 kt. Choppy.
.THU THROUGH FRI...W winds 10 to 15 kt. A moderate chop.

$$



Don't Miss