HomeForecastsFlorida ForecastsMayport, FL - (Bar Pilot Dock) Coastal Forecast

Mayport, FL - (Bar Pilot Dock) Coastal Forecast

FZUS52 KJAX 041923
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
223 PM EST Thu Dec 4 2025

Atlantic Coastal Waters from Altamaha Sound GA to Flagler Beach
FL out to 60 nm.

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 1/10 of the waves.

AMZ400-051030-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
223 PM EST Thu Dec 4 2025

.SYNOPSIS...

Weak low pressure organizing along the northern Gulf coast this
afternoon will lift a warm front northeastward across our local
waters on Friday, accompanied by showers and possibly an
isolated thunderstorm. Weak low pressure will move northeastward
across southeastern Georgia on Friday afternoon, with this storm
system's cold front then crossing our local waters on Friday night
and Saturday morning. A wave of low pressure will then develop along
this front just south of the northeast Florida waters on Saturday
night, with widespread rainfall and a few embedded thunderstorms
likely across our local waters through Sunday. Low pressure will
then strengthen as it moves offshore on Sunday night and Monday,
resulting in strengthening north northwesterly winds as rainfall
ends, with Small Craft Advisory conditions possible from Monday
through early Tuesday.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Dec 02, 2025 at 1200 UTC...

37 nautical miles east northeast of Flagler Beach.
38 nautical miles east northeast of Saint Augustine Beach.
41 nautical miles east of Jacksonville Beach.
58 nautical miles east southeast of St Simons Island.

This data courtesy of the Naval Oceanographic Office.

$$

AMZ450-452-454-051030-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
223 PM EST Thu Dec 4 2025

.TONIGHT...East northeast winds 5 to 10 knots, becoming south 10
to 15 knots after midnight. Seas 2 to 4 feet, occasionally to 5
feet. Wave Detail: Northeast 3 feet at 9 seconds and southeast 2
feet at 3 seconds. Intracoastal waters becoming a light chop. A
chance of light rain.
.FRIDAY...Southwest winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: South 3 feet at 4 seconds
and east 3 feet at 10 seconds. Intracoastal waters a light chop.
A chance of showers in the afternoon.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots, becoming northwest
around 10 knots after midnight. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: East 3 feet at 10 seconds and south 2 feet
at 5 seconds. Intracoastal waters light chop. A chance of showers,
mainly in the evening.
.SATURDAY...Northwest winds around 10 knots, becoming north and
increasing to around 15 knots in the afternoon. Seas 2 to 3 feet.
Wave Detail: East 3 feet at 10 seconds. Intracoastal waters
becoming a moderate chop. A slight chance of showers in the
morning, then a chance of showers in the afternoon.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
northeast around 10 knots after midnight. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at 7
seconds. Intracoastal waters a light chop. Showers with a slight
chance of thunderstorms.
.SUNDAY...East winds 10 to 15 knots, becoming southwest around 15
knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet.
Wave Detail: Northeast 3 feet at 8 seconds and southeast 2 feet
at 4 seconds. Intracoastal waters becoming a moderate chop.
Showers likely in the morning, then showers with a slight chance
of thunderstorms in the afternoon.
.SUNDAY NIGHT...North northwest winds 10 to 15 knots, becoming
north and increasing to 15 to 20 knots after midnight. Seas
building to 4 to 5 feet, occasionally to 6 feet. Intracoastal
waters becoming choppy. A chance of showers.
.MONDAY AND MONDAY NIGHT...North winds increasing to around 25
knots. Seas building to 5 to 7 feet, occasionally to 9 feet.
Intracoastal waters becoming rough.
.TUESDAY...North winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Intracoastal waters choppy.

Winds and waves higher in and near thunderstorms.

$$

AMZ470-472-474-051030-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
223 PM EST Thu Dec 4 2025

.TONIGHT...East northeast winds around 10 knots, becoming south
and increasing to around 15 knots after midnight. Seas 3 to 5
feet, occasionally to 6 feet. Wave Detail: East 4 feet at 10
seconds and southeast 3 feet at 4 seconds. A chance of light rain.
.FRIDAY...Southwest winds 15 to 20 knots, diminishing to 10 to 15
knots during the afternoon. Seas 4 to 6 feet, occasionally to 8
feet. Wave Detail: South 5 feet at 5 seconds and east 4 feet at
10 seconds. A slight chance of showers in the afternoon.
.FRIDAY NIGHT...West winds 10 to 15 knots, becoming northwest
around 10 knots after midnight. Seas 3 to 5 feet, occasionally
to 6 feet. Wave Detail: South 3 feet at 5 seconds and east 3 feet
at 10 seconds. A chance of showers, mainly in the evening.
.SATURDAY...Northwest winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 3 feet at 10 seconds
and west 2 feet at 4 seconds. A slight chance of showers in the
morning, then a chance of showers in the afternoon.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at
10 seconds and southeast 2 feet at 4 seconds. Showers with a
slight chance of thunderstorms.
.SUNDAY...East winds 10 to 15 knots, becoming southwest around 15
knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet.
Wave Detail: Northeast 4 feet at 9 seconds and south 2 feet at 4
seconds. Showers with a slight chance of thunderstorms.
.SUNDAY NIGHT...North winds 10 to 15 knots, becoming northwest
15 to 20 knots after midnight. Seas 4 to 5 feet, occasionally to
6 feet. Showers likely, mainly in the evening.
.MONDAY AND MONDAY NIGHT...North winds 20 to 25 knots. Seas 5 to
7 feet, occasionally to 9 feet. A slight chance of showers in the
morning.
.TUESDAY...North winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet.

Winds and seas higher in and near thunderstorms.

$$


Don't Miss