L-36.com
Top   Marine   7-Day   Tide   NWS   Buoy   Airport   Map   GEOS   Radar   TAF  

Marine Weather and Tide Forecast for St. Augustine South, FL

April 30, 2025 12:13 AM EDT (04:13 UTC)
Change Location 
Sunrise 6:41 AM   Sunset 8:02 PM
Moonrise 7:49 AM   Moonset 10:50 PM 
Print  Help   Reset   Save   Recall   News  Map
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

Marine Forecasts
   
Edit   Hide   Help

NOTE: Zones were updated 3/20/2025
AMZ454 Expires:202504300915;;687882 Fzus52 Kjax 300037 Cwfjax
coastal waters forecast for northeast florida/southeast georgia national weather service jacksonville fl 837 pm edt Tue apr 29 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.
amz450-452-454-300915- 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- 837 pm edt Tue apr 29 2025

Rest of tonight - Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: east 4 feet at 7 seconds. Intracoastal waters a moderate chop. A slight chance of showers this evening.

Wednesday - Southeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: east 3 feet at 7 seconds and southeast 2 feet at 3 seconds. Intracoastal waters light chop.

Wednesday night - Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: east 3 feet at 8 seconds and southeast 2 feet at 3 seconds. Intracoastal waters light chop.

Thursday - Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave detail: east 3 feet at 8 seconds. Intracoastal waters a moderate chop.

Thursday night and Friday - Southeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: southeast 3 feet at 5 seconds and east 3 feet at 8 seconds. Intracoastal waters a moderate chop.

Friday night - South winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: southeast 4 feet at 5 seconds and east 3 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers.

Saturday through Sunday - Northeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. A chance of showers with a slight chance of Thunderstorms.
winds and waves higher in and near Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 837 Pm Edt Tue Apr 29 2025

Synopsis -
high pressure will be centered to the northeast through Wednesday, then to the east Thursday and Friday. The high will move further away to the east Friday night into Saturday, allowing a cold front to move into the region Saturday afternoon. This front will slowly move south across the area through Saturday night, as high pressure builds from the north. High pressure will continue to build south toward the region early next week.

Gulf stream -
the approximate location of the west wall of the gulf stream as of apr 26, 2025 at 1200 utc - .
64 nautical miles east of flagler beach. 66 nautical miles east of saint augustine beach. 75 nautical miles east of jacksonville beach. 87 nautical miles east southeast of st simons island.
this data courtesy of the naval oceanographic office.

7 Day Forecast for Marine Location Near St. Augustine South, FL
   
Edit   Hide   Help   Map    ←NEW

NEW! Add second zone forecast

Tide / Current for St. Augustine, city dock, Florida
  
Edit   Weekend Mode (on/off)   Hide   Help
St. Augustine
Click for Map
Tue -- 04:21 AM EDT     -0.60 feet Low Tide
Tue -- 06:44 AM EDT     Sunrise
Tue -- 07:53 AM EDT     Moonrise
Tue -- 10:19 AM EDT     4.58 feet High Tide
Tue -- 04:16 PM EDT     -0.72 feet Low Tide
Tue -- 08:01 PM EDT     Sunset
Tue -- 10:41 PM EDT     Moonset
Tue -- 10:44 PM EDT     6.01 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, St. Augustine, city dock, Florida does not exist in database. Press Edit above and select a valid nearby location.

St. Augustine, city dock, Florida, Tide feet
12
am
4.3
1
am
2.7
2
am
1.2
3
am
0
4
am
-0.6
5
am
-0.5
6
am
0.3
7
am
1.5
8
am
2.8
9
am
3.9
10
am
4.5
11
am
4.4
12
pm
3.5
1
pm
2.2
2
pm
0.9
3
pm
-0.2
4
pm
-0.7
5
pm
-0.5
6
pm
0.3
7
pm
1.7
8
pm
3.3
9
pm
4.8
10
pm
5.8
11
pm
6

Tide / Current for East Tocoi, St. Johns River, Florida
  
Edit   Hide   Help
East Tocoi
Click for Map
Tue -- 04:11 AM EDT     6.04 feet High Tide
Tue -- 06:45 AM EDT     Sunrise
Tue -- 07:54 AM EDT     Moonrise
Tue -- 10:49 AM EDT     4.95 feet Low Tide
Tue -- 04:26 PM EDT     5.84 feet High Tide
Tue -- 08:02 PM EDT     Sunset
Tue -- 10:42 PM EDT     Moonset
Tue -- 10:55 PM EDT     4.87 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, East Tocoi, St. Johns River, Florida does not exist in database. Press Edit above and select a valid nearby location.

East Tocoi, St. Johns River, Florida, Tide feet
12
am
5.2
1
am
5.5
2
am
5.8
3
am
5.9
4
am
6
5
am
6
6
am
5.8
7
am
5.5
8
am
5.3
9
am
5.1
10
am
5
11
am
5
12
pm
5.1
1
pm
5.3
2
pm
5.6
3
pm
5.7
4
pm
5.8
5
pm
5.8
6
pm
5.7
7
pm
5.4
8
pm
5.2
9
pm
5
10
pm
4.9
11
pm
4.9

Area Discussion for Jacksonville, FL
   Hide   Help   
NOTE: mouseover dotted underlined text for definition
FXUS62 KJAX 300035 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 835 PM EDT Tue Apr 29 2025

New UPDATE

UPDATE
Issued at 828 PM EDT Tue Apr 29 2025

For the latest NE FL and SE GA Daily Key Messages please visit: https:// www.weather.gov/media/jax/briefings/nws-jax-briefing.pdf

Remaining spotty showers inland will dissipate this evening. A few sprinkles may affect coastal counties this evening, as weak bands come ashore.

Skies will be mainly clear overnight. With the flow onshore Tonight, lows will range from the mid to upper 60s near the coast, to the upper 50s to lower 60s further inland.

SYNOPSIS
Issued at 302 PM EDT Tue Apr 29 2025

Afternoon surface analysis depicts strong high pressure (1028 millibars) centered just east of North Carolina's Outer Banks.
Meanwhile, a cold front extends southwestward from the Great Lakes through the Ozarks and the Southern Plains
Aloft
ridging continues to build northeastward from the Bay of Campeche (southwestern Gulf of Mexico) into the southeastern states.
Otherwise, a potent shortwave trough was accelerating east- northeastward across the Great Lakes region, with a cutoff trough left behind across the Desert Southwest. Latest GOES-East derived Total Precipitable Water imagery indicates that PWATs were in the 1.1 to 1.3 inch range across our area, with drier air mass advecting towards the northeast FL beaches, where values were closer to 1 inch. The Atlantic and Gulf coast sea breezes have developed this afternoon at coastal locations, with the Gulf coast sea breeze being pinned along the FL Big Bend and Nature coasts. A few sprinkles or light showers have developed beneath a healthy cumulus and stratocumulus field at inland locations, with this activity pushing quickly westward and remaining very brief in duration. Temperatures at 19Z were in the low to mid 80s across inland northeast and north central FL, with upper 70s to around 80 being reported elsewhere. Dewpoints were generally in the 60-65 range.

SHORT TERM
(Wednesday and Thursday)
Issued at 302 PM EDT Tue Apr 29 2025

Temperatures will be at or above normal Wednesday and Thursday as dry conditions continue under high pressure ridging. Inland high temperatures will be in the mid to upper 80s, with an onshore breeze keeping coastal highs in the 70s to lower 80s both days.

LONG TERM
(Friday through Monday)
Issued at 302 PM EDT Tue Apr 29 2025

Rain chances return late Friday through early next week as a front approaches from the northwest. Showers will start up Friday evening for far inland southeast Georgia, with rain chances of 30-40% covering all of northeast Florida and southeast Georgia by Saturday afternoon, and again Sunday. It will be hot on Friday and Saturday, with high temperatures approaching 90 degrees inland, and the lower to mid 80s along the coast. With the warm temperatures and action from the Atlantic sea breeze and the front, thunderstorms are possible Saturday and Sunday afternoons/evenings. As the front exits south of the forecast area on Sunday, isolated shower chances will continue Monday and Tuesday as high pressure builds to the north. Temperatures will return to near normal in the 80s inland and onshore winds keeping the coast in the upper 70s.

AVIATION
(00Z TAFS)
Issued at 721 PM EDT Tue Apr 29 2025

VFR expected to prevail for the majority of airfields during the forecast period. Some BR/FG is possible towards early Wednesday morning inland, especially at VQQ which continues to be included in the forecast. Otherwise, dry and mostly clear skies overnight with only a few low clouds streaming onshore at coastal sites at times. Similar regime expected Wednesday late morning and afternoon/evening with onshore winds around 10 knots and FEW or SCT fair weather diurnal clouds.

MARINE
Issued at 302 PM EDT Tue Apr 29 2025

High pressure will remain positioned off the southeastern seaboard through Friday. Breezy easterly winds this evening will shift to southeasterly while gradually decreasing after midnight.
Seas of 2-4 feet will prevail both near shore and offshore through Friday. An evening wind surge is expected on Thursday well in advance of a cold front that will be entering the southeastern states on Friday afternoon and evening, with Caution conditions likely both near shore and offshore late this week. This cold front will cross our local waters on Saturday and Saturday evening, accompanied by showers and thunderstorms. A surge of northeasterly winds is forecast in the wake of this frontal passage on Sunday and Sunday night as high pressure building over the Ohio Valley wedges down the southeastern seaboard.

Rip Currents: Breakers of 3-5 feet at the northeast FL beaches will combine with an easterly ocean swell to create a high risk of rip currents today. Breaker heights of 2-4 feet at the southeast GA beaches should yield a higher end moderate risk today. Breaker heights will only slowly diminish through late this week as breezy onshore

FIRE WEATHER
Issued at 1205 PM EDT Tue Apr 29 2025

Breezy easterly surface and transport winds will progress inland this afternoon, creating fair to good daytime dispersion values across our area. Surface and transport winds will gradually shift to east-southeasterly on Wednesday and then southeasterly by Thursday. Breezy onshore surface winds are expected at coastal locations each afternoon. Slightly lower transport speeds on Wednesday will mostly yield fair daytime dispersion values on Wednesday afternoon, while good values continue across north central FL. Elevated mixing heights on Thursday will result in a continuation of fair to good daytime dispersion values despite lighter transport speeds at inland locations.

PRELIMINARY POINT TEMPS/POPS
AMG 61 86 60 87 / 0 0 0 0 SSI 66 79 67 80 / 0 0 0 0 JAX 59 84 61 86 / 0 0 0 0 SGJ 65 80 65 83 / 0 0 0 0 GNV 60 87 60 88 / 0 0 0 0 OCF 61 88 60 88 / 0 0 0 0

JAX WATCHES/WARNINGS/ADVISORIES
FL...High Rip Current Risk until 5 AM EDT Wednesday for FLZ124-125- 138-233-333.

GA...None.
AM...None.


Weather Reporting Stations
   Edit   Hide   Help
Stations Dist Age Wind AirWater WavesinHgDewPt
SAUF1 - St. Augustine, FL 3 mi74 min15G17 74°F 30.19
41117 15 mi48 min 75°F4 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 15 mi89 minESE 6 73°F 30.2161°F
BKBF1 30 mi56 minESE 6G8.9 73°F 30.20
LTJF1 36 mi56 min 73°F 64°F
JXUF1 37 mi56 min 79°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 37 mi56 minESE 8.9G13 73°F 77°F30.22
BLIF1 38 mi56 minESE 8.9G12 73°F 30.21
DMSF1 38 mi56 min 78°F
NFDF1 40 mi56 minESE 8.9G11 74°F 30.1966°F
41069 48 mi66 minESE 12G19 73°F 74°F30.1864°F
41070 48 mi94 min 74°F4 ft


Wind History for I-295 Bridge, St Johns River, FL
(wind in knots)    Edit   Hide   Help
toggle option: (graph/table)

Airport Reports
   
Edit   Hide   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KSGJ NORTHEAST FLORIDA RGNL,FL 6 sm17 minSE 1310 smPartly Cloudy73°F61°F65%30.21

Weather Map
   Hide   Help

GEOS Local Image of southeast  
Edit   Hide

Jacksonville, FL,





NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE