Marine Weather and Tide Forecast for St. Augustine Beach, FL
April 23, 2025 3:22 AM EDT (07:22 UTC) Change Location
![]() | Sunrise 6:48 AM Sunset 7:57 PM Moonrise 3:08 AM Moonset 2:35 PM |
AMZ454 Expires:202504230915;;283592 Fzus52 Kjax 222335 Cwfjax
coastal waters forecast for northeast florida/southeast georgia national weather service jacksonville fl 735 pm edt Tue apr 22 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.
amz450-452-454-230915- 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- 735 pm edt Tue apr 22 2025
Rest of tonight - Southeast winds 10 to 15 knots, becoming south 5 to 10 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 8 seconds and southeast 2 feet at 4 seconds. Intracoastal waters a moderate chop.
Wednesday - South winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave detail: east 3 feet at 9 seconds and southeast 2 feet at 4 seconds. Intracoastal waters a moderate chop.
Wednesday night - Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave detail: east 3 feet at 9 seconds and southeast 2 feet at 5 seconds. Intracoastal waters a moderate chop.
Thursday - East winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: east 3 feet at 8 seconds and southeast 2 feet at 5 seconds. Intracoastal waters light chop.
Thursday night and Friday - East winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: east 3 feet at 9 seconds and southeast 2 feet at 5 seconds. Intracoastal waters light chop.
Friday night - Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: east 3 feet at 9 seconds. Intracoastal waters light chop.
Saturday - South winds 5 to 10 knots. Seas 2 to 3 feet. Intracoastal waters light chop. A slight chance of showers in the evening.
Sunday - Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Intracoastal waters light chop. A slight chance of Thunderstorms in the afternoon. A chance of showers through the night, then a slight chance of showers after midnight.
winds and waves higher in and near Thunderstorms.
coastal waters forecast for northeast florida/southeast georgia national weather service jacksonville fl 735 pm edt Tue apr 22 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.
amz450-452-454-230915- 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- 735 pm edt Tue apr 22 2025
winds and waves higher in and near Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 735 Pm Edt Tue Apr 22 2025
Synopsis - High pressure over the western atlantic will create breezy south to southeast winds as daily seabreeze circulations develop each afternoon over the near shore waters. Late this weekend, a backdoor cold front will sink into the waters from the north with elevated northeast to east winds and building seas.
Gulf stream -
the approximate location of the west wall of the gulf stream as of apr 19, 2025 at 1200 utc - .
71 nautical miles east of flagler beach. 80 nautical miles east of saint augustine beach. 89 nautical miles east of jacksonville beach. 94 nautical miles east of st simons island.
this data courtesy of the naval oceanographic office.
the approximate location of the west wall of the gulf stream as of apr 19, 2025 at 1200 utc - .
71 nautical miles east of flagler beach. 80 nautical miles east of saint augustine beach. 89 nautical miles east of jacksonville beach. 94 nautical miles east of st simons island.
this data courtesy of the naval oceanographic office.
7 Day Forecast for Marine Location Near St. Augustine Beach, FL

NEW! Add second zone forecast
St. Augustine Beach Click for Map Wed -- 04:07 AM EDT Moonrise Wed -- 04:39 AM EDT 4.52 feet High Tide Wed -- 06:49 AM EDT Sunrise Wed -- 10:53 AM EDT 0.16 feet Low Tide Wed -- 03:35 PM EDT Moonset Wed -- 05:12 PM EDT 4.38 feet High Tide Wed -- 07:57 PM EDT Sunset Wed -- 11:15 PM EDT 0.14 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |   |
St. Augustine Beach, Florida, Tide feet
12 am |
1.1 |
1 am |
2.1 |
2 am |
3 |
3 am |
3.9 |
4 am |
4.4 |
5 am |
4.5 |
6 am |
4 |
7 am |
3.1 |
8 am |
2 |
9 am |
1 |
10 am |
0.4 |
11 am |
0.2 |
12 pm |
0.5 |
1 pm |
1.3 |
2 pm |
2.3 |
3 pm |
3.2 |
4 pm |
4 |
5 pm |
4.4 |
6 pm |
4.2 |
7 pm |
3.5 |
8 pm |
2.4 |
9 pm |
1.4 |
10 pm |
0.6 |
11 pm |
0.2 |
East Tocoi Click for Map Wed -- 04:09 AM EDT Moonrise Wed -- 05:37 AM EDT 4.98 feet Low Tide Wed -- 06:50 AM EDT Sunrise Wed -- 11:36 AM EDT 5.90 feet High Tide Wed -- 03:36 PM EDT Moonset Wed -- 06:18 PM EDT 5.05 feet Low Tide Wed -- 07:58 PM EDT Sunset Wed -- 11:52 PM EDT 5.80 feet High Tide Tide / Current data from XTide NOT FOR NAVIGATION |   |
East Tocoi, St. Johns River, Florida, Tide feet
12 am |
5.7 |
1 am |
5.5 |
2 am |
5.3 |
3 am |
5.2 |
4 am |
5.1 |
5 am |
5 |
6 am |
5 |
7 am |
5.1 |
8 am |
5.4 |
9 am |
5.6 |
10 am |
5.8 |
11 am |
5.9 |
12 pm |
5.9 |
1 pm |
5.8 |
2 pm |
5.6 |
3 pm |
5.4 |
4 pm |
5.3 |
5 pm |
5.1 |
6 pm |
5.1 |
7 pm |
5.1 |
8 pm |
5.3 |
9 pm |
5.5 |
10 pm |
5.6 |
11 pm |
5.8 |
Area Discussion for Jacksonville, FL
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FXUS62 KJAX 230551 AFDJAX
Area Forecast Discussion National Weather Service Jacksonville FL 151 AM EDT Wed Apr 23 2025
New AVIATION
UPDATE
Issued at 805 PM EDT Tue Apr 22 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
Forecast remains on track this evening. SPC continues to show a Marginal Risk (Level 1 of 5) of severe weather for areas north of the I-10 corridor for Wednesday afternoon into evening.
NEAR TERM
(Through Tonight)
Issued at 220 PM EDT Tue Apr 22 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
A weak surface ridge axis will be across the north FL peninsula and flow aloft remains southwesterly. A shortwave will approach the area through tonight but airmass and moisture are generally not supportive of mentioning precip. However, a shower or two (about 10 percent chances) will be possible over southeast GA this evening. Highs today will reach into the mid and upper 80s, with lower 80s at the coast. Meanwhile, scattered cumulus will dissipate this evening but high clouds are likely to continue tonight. Some patchy fog is forecast late tonight for inland areas. Lows tonight in the 60s expected.
SHORT TERM
(Wednesday through Thursday night)
Issued at 220 PM EDT Tue Apr 22 2025
Hot temperatures continue Wednesday and Thursday, with inland highs reaching the mid 80s to lower 90s, with the Atlantic sea breeze keeping the coast a few degrees cooler both days. Low temperatures will be mild in the 60s, with near 70 degrees along the coast and St. Johns river basin.
Precipitation chances will be mainly north of I-10 both Wednesday and Thursday as a front remains stalled north of the forecast area. With solid daytime heating and a sea breeze formation, isolated thunderstorms are likely in the afternoons and evenings.
Wednesday looks like a better opportunity for stronger to isolated severe storm formation, with CAMs highlighting southeast Georgia, as well as north central Florida (west of the St. Johns river basin) through the evening. Strong winds and hail will be the primary threats with any strong or isolated severe thunderstorm development due to relatively steep mid level lapse rates.
LONG TERM
(Friday through next Tuesday)
Issued at 220 PM EDT Tue Apr 22 2025
Above average temperatures will continue through the weekend, again with the Atlantic sea breeze keeping the coast a little bit cooler than inland locations. Showers and isolated thunderstorms will be possible over southeast Georgia on Friday and Saturday as a cold front approaches. The front will move through the area on Sunday, bringing rain chances of 20-30% across NE FL and SE GA along with isolated thunderstorms. Behind the front, temperatures will return to near normal for the start of next week.
AVIATION
(06Z TAFS)
Issued at 148 AM EDT Wed Apr 23 2025
MVFR fog developing after 07-08Z at VQQ and GNV with restrictions for IFR fog at GNV 08Z-11Z. VFR conditions will prevail after 12Z as the region will be between weak high pressure in the Atlantic and a stalled cold front to the north. Strong heating and weak pressure pattern will allow the Atlantic seabreeze to move onshore by midday and through the duval TAF sites through the early afternoon before encountering Gulf coast seabreeze just west of GNV.
Isolated to scattered T'storms will remain northwest of the sites this afternoon where additional lift, moisture across GA and instability from a disturbance aloft combine, but probability much too low near KSSI for any VCSH or VCTS. Strongest winds along SSI/SGJ 10-12 knots and 8-10 knots inland this afternoon behind seabreeze passage turning winds easterly. A few debris clouds may drift over SSI to end the period with winds diminishing to 5-8 knots from the southeast.
MARINE
Issued at 220 PM EDT Tue Apr 22 2025
Little change in the ongoing marine forecast with southeast to south winds up to 10-15 kt and seas of about 2-4 ft much of the week. There is a slight increase in the combined sea heights by Thu night into Friday, but for most part seas stay in the 2-4 ft/2-3 ft range with dominant periods of 5 to 9 seconds. A further increase in winds and seas will be possible over the weekend as a backdoor front moves into the region.
Rip Currents: A moderate risk of rip currents is in effect for Northeast Florida and Southeast Georgia beaches rest of today and Wednesday due to the onshore winds and surf 2-3 feet. Stronger rip currents can form near piers and jetties. Always swim near a lifeguard.
CLIMATE
Issued at 220 PM EDT Tue Apr 22 2025
DAILY RECORD HIGHS
WED 4/23 THU 4/24 FRI 4/25
JAX 92 (1970) 93 (1999) 92 (1958)
GNV 92 (1970) 94 (1999) 93 (1896)
AMG 94 (1968) 93 (1999) 91 (1958)
CRG 89 (2020) 92 (1999) 91 (2006)
PRELIMINARY POINT TEMPS/POPS
AMG 87 62 85 62 / 50 30 40 10 SSI 79 68 79 68 / 10 20 10 10 JAX 86 65 85 63 / 10 10 10 0 SGJ 82 66 82 65 / 0 10 0 0 GNV 90 62 89 61 / 20 10 10 0 OCF 91 63 90 61 / 10 10 0 0
JAX WATCHES/WARNINGS/ADVISORIES
FL...None.
GA...None.
AM...None.
Area Forecast Discussion National Weather Service Jacksonville FL 151 AM EDT Wed Apr 23 2025
New AVIATION
UPDATE
Issued at 805 PM EDT Tue Apr 22 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
Forecast remains on track this evening. SPC continues to show a Marginal Risk (Level 1 of 5) of severe weather for areas north of the I-10 corridor for Wednesday afternoon into evening.
NEAR TERM
(Through Tonight)
Issued at 220 PM EDT Tue Apr 22 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
A weak surface ridge axis will be across the north FL peninsula and flow aloft remains southwesterly. A shortwave will approach the area through tonight but airmass and moisture are generally not supportive of mentioning precip. However, a shower or two (about 10 percent chances) will be possible over southeast GA this evening. Highs today will reach into the mid and upper 80s, with lower 80s at the coast. Meanwhile, scattered cumulus will dissipate this evening but high clouds are likely to continue tonight. Some patchy fog is forecast late tonight for inland areas. Lows tonight in the 60s expected.
SHORT TERM
(Wednesday through Thursday night)
Issued at 220 PM EDT Tue Apr 22 2025
Hot temperatures continue Wednesday and Thursday, with inland highs reaching the mid 80s to lower 90s, with the Atlantic sea breeze keeping the coast a few degrees cooler both days. Low temperatures will be mild in the 60s, with near 70 degrees along the coast and St. Johns river basin.
Precipitation chances will be mainly north of I-10 both Wednesday and Thursday as a front remains stalled north of the forecast area. With solid daytime heating and a sea breeze formation, isolated thunderstorms are likely in the afternoons and evenings.
Wednesday looks like a better opportunity for stronger to isolated severe storm formation, with CAMs highlighting southeast Georgia, as well as north central Florida (west of the St. Johns river basin) through the evening. Strong winds and hail will be the primary threats with any strong or isolated severe thunderstorm development due to relatively steep mid level lapse rates.
LONG TERM
(Friday through next Tuesday)
Issued at 220 PM EDT Tue Apr 22 2025
Above average temperatures will continue through the weekend, again with the Atlantic sea breeze keeping the coast a little bit cooler than inland locations. Showers and isolated thunderstorms will be possible over southeast Georgia on Friday and Saturday as a cold front approaches. The front will move through the area on Sunday, bringing rain chances of 20-30% across NE FL and SE GA along with isolated thunderstorms. Behind the front, temperatures will return to near normal for the start of next week.
AVIATION
(06Z TAFS)
Issued at 148 AM EDT Wed Apr 23 2025
MVFR fog developing after 07-08Z at VQQ and GNV with restrictions for IFR fog at GNV 08Z-11Z. VFR conditions will prevail after 12Z as the region will be between weak high pressure in the Atlantic and a stalled cold front to the north. Strong heating and weak pressure pattern will allow the Atlantic seabreeze to move onshore by midday and through the duval TAF sites through the early afternoon before encountering Gulf coast seabreeze just west of GNV.
Isolated to scattered T'storms will remain northwest of the sites this afternoon where additional lift, moisture across GA and instability from a disturbance aloft combine, but probability much too low near KSSI for any VCSH or VCTS. Strongest winds along SSI/SGJ 10-12 knots and 8-10 knots inland this afternoon behind seabreeze passage turning winds easterly. A few debris clouds may drift over SSI to end the period with winds diminishing to 5-8 knots from the southeast.
MARINE
Issued at 220 PM EDT Tue Apr 22 2025
Little change in the ongoing marine forecast with southeast to south winds up to 10-15 kt and seas of about 2-4 ft much of the week. There is a slight increase in the combined sea heights by Thu night into Friday, but for most part seas stay in the 2-4 ft/2-3 ft range with dominant periods of 5 to 9 seconds. A further increase in winds and seas will be possible over the weekend as a backdoor front moves into the region.
Rip Currents: A moderate risk of rip currents is in effect for Northeast Florida and Southeast Georgia beaches rest of today and Wednesday due to the onshore winds and surf 2-3 feet. Stronger rip currents can form near piers and jetties. Always swim near a lifeguard.
CLIMATE
Issued at 220 PM EDT Tue Apr 22 2025
DAILY RECORD HIGHS
WED 4/23 THU 4/24 FRI 4/25
JAX 92 (1970) 93 (1999) 92 (1958)
GNV 92 (1970) 94 (1999) 93 (1896)
AMG 94 (1968) 93 (1999) 91 (1958)
CRG 89 (2020) 92 (1999) 91 (2006)
PRELIMINARY POINT TEMPS/POPS
AMG 87 62 85 62 / 50 30 40 10 SSI 79 68 79 68 / 10 20 10 10 JAX 86 65 85 63 / 10 10 10 0 SGJ 82 66 82 65 / 0 10 0 0 GNV 90 62 89 61 / 20 10 10 0 OCF 91 63 90 61 / 10 10 0 0
JAX WATCHES/WARNINGS/ADVISORIES
FL...None.
GA...None.
AM...None.
Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
SAUF1 - St. Augustine, FL | 1 mi | 22 min | 2.9G | 70°F | 30.08 | |||
41117 | 13 mi | 56 min | 74°F | 2 ft | ||||
GTXF1 - Guana Tolomato Matanzas Reserve, FL | 15 mi | 97 min | 0 | 66°F | 30.12 | 63°F | ||
BKBF1 | 32 mi | 52 min | S 6G | 72°F | 30.09 | |||
LTJF1 | 37 mi | 52 min | 71°F | 71°F | ||||
JXUF1 | 38 mi | 52 min | 76°F | |||||
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL | 38 mi | 52 min | SSW 2.9G | 70°F | 75°F | 30.11 | ||
BLIF1 | 39 mi | 52 min | S 1.9G | 71°F | 30.10 | |||
DMSF1 | 39 mi | 52 min | 76°F | |||||
NFDF1 | 41 mi | 52 min | SSE 4.1G | 71°F | 30.09 | 71°F | ||
41069 | 47 mi | 74 min | SSE 9.7G | 73°F | 73°F | 30.08 | 68°F | |
41070 | 47 mi | 102 min | 73°F | 3 ft |
Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
Link to 1 hour of 5 minute data for KSGJ
Terminal Aerodrome Forecast (TAF) for KSGJ
Wind History Graph: SGJ
(wind in knots)GEOS Local Image of southeast
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Jacksonville, FL,

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