Jacksonville, FL Coastal Forecast

FZUS52 KJAX 230514
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
1214 AM EST Tue Dec 23 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.

AMZ400-232015-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
1214 AM EST Tue Dec 23 2025

.SYNOPSIS...

High pressure ridge will build overhead Today through Thursday. A
weak cold front will glance by to the northeast Tuesday night. The
high will sink to the south later in the week.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Dec 22, 2025 at 0000 UTC...

50 nautical miles east of Flagler Beach.
58 nautical miles east of Saint Augustine Beach.
70 nautical miles east southeast of Jacksonville Beach.
76 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-232015-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
1214 AM EST Tue Dec 23 2025

.TODAY...Southeast winds around 5 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 9 seconds.
Intracoastal waters smooth.
.TONIGHT...Southwest winds around 5 knots, becoming west after
midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
East 4 feet at 9 seconds. Intracoastal waters light chop.
.WEDNESDAY...West winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at
9 seconds. Intracoastal waters light chop.
.WEDNESDAY NIGHT...Southeast winds around 5 knots, becoming west
after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at
9 seconds. Intracoastal waters smooth.
.THURSDAY AND THURSDAY NIGHT...West winds 5 to 10 knots. Seas
around 2 feet. Wave Detail: East 2 feet at 9 seconds.
Intracoastal waters light chop.
.FRIDAY THROUGH SATURDAY...Southwest winds 5 to 10 knots. Seas
2 to 3 feet. Wave Detail: South 2 feet at 3 seconds and east
2 feet at 9 seconds. Intracoastal waters light chop.

$$

AMZ452-454-232015-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
1214 AM EST Tue Dec 23 2025

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH THIS
AFTERNOON...

.TODAY...Southeast winds 5 to 10 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: East 6 feet at 8 seconds.
Intracoastal waters light chop.
.TONIGHT...South winds around 5 knots, becoming west after
midnight. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
East 5 feet at 9 seconds. Intracoastal waters light chop.
.WEDNESDAY...Northwest winds 5 to 10 knots, becoming north in the
afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
East 4 feet at 9 seconds. Intracoastal waters light chop.
.WEDNESDAY NIGHT...Northeast winds around 5 knots, becoming west
after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at
9 seconds. Intracoastal waters smooth.
.THURSDAY AND THURSDAY NIGHT...West winds 5 to 10 knots. Seas
2 to 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal
waters light chop.
.FRIDAY THROUGH SATURDAY...Southwest winds 10 to 15 knots. Seas
2 to 3 feet. Wave Detail: East 3 feet at 9 seconds and southwest
2 feet at 3 seconds. Intracoastal waters a moderate chop.

$$

AMZ470-472-232015-
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-
1214 AM EST Tue Dec 23 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EST THIS MORNING...

.TODAY...Southeast winds 10 to 15 knots, becoming south around
5 knots this afternoon. Seas decreasing to 5 to 6 feet,
occasionally to 8 feet. Wave Detail: East 6 feet at 9 seconds.
.TONIGHT...Southwest winds 5 to 10 knots, becoming west after
midnight. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
East 5 feet at 9 seconds.
.WEDNESDAY...Northwest winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 9 seconds.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots, becoming
northwest after midnight. Seas 2 to 3 feet. Wave Detail: East
3 feet at 9 seconds.
.THURSDAY AND THURSDAY NIGHT...West winds 5 to 10 knots. Seas
2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
9 seconds and west 2 feet at 3 seconds.
.FRIDAY THROUGH SATURDAY...Southwest winds 10 to 15 knots. Seas
3 to 4 feet, occasionally to 5 feet. Wave Detail: Southwest
3 feet at 4 seconds and east 3 feet at 9 seconds.

$$

AMZ474-232015-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
1214 AM EST Tue Dec 23 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...Southeast winds 10 to 15 knots, diminishing to 5 to
10 knots this afternoon. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: East 7 feet at 8 seconds.
.TONIGHT...South winds around 5 knots, becoming northwest after
midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
East 6 feet at 9 seconds.
.WEDNESDAY...Northwest winds around 10 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Wave Detail: East 5 feet at 9 seconds.
.WEDNESDAY NIGHT...North winds 5 to 10 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: East 4 feet at 9 seconds.
.THURSDAY AND THURSDAY NIGHT...West winds 5 to 10 knots. Seas
2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at
9 seconds and west 2 feet at 3 seconds.
.FRIDAY THROUGH SATURDAY...West winds 10 to 15 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: West 3 feet at
4 seconds and northeast 3 feet at 9 seconds.

$$