Tides Today & Tomorrow in St. Augustine (city dock), FL

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in St. Augustine (city dock), FL.
Next low tide (tomorrow) : 9:45 am (0.4 ft)
Next high tide (tomorrow) : in 4h 02m at 3:17 am (3.9 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 6:38 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8720576
Common Questions About Tides

St. Augustine (city dock), FL Tides - Apr 1960

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:514.15:570.56:020.66:146:43Waxing Crescent1Fri
2Sat12:094.412:343.96:440.86:490.86:126:44First Quarter2Sat
3Sun12:534.31:223.87:361.07:430.96:116:45First Quarter3Sun
4Mon1:454.22:163.88:301.08:411.06:106:45First Quarter4Mon
5Tue2:424.13:153.89:241.09:380.96:096:46First Quarter5Tue
6Wed3:414.24:134.010:150.810:340.76:086:46Waxing Gibbous6Wed
7Thu4:394.35:094.211:050.611:280.56:076:47Waxing Gibbous7Thu
8Fri5:334.56:004.511:540.36:056:48Waxing Gibbous8Fri
9Sat6:224.66:484.812:200.212:400.06:046:48Waxing Gibbous9Sat
10Sun7:094.87:345.01:10-0.21:25-0.36:036:49Full Moon10Sun
11Mon7:554.98:195.21:57-0.42:09-0.56:026:49Full Moon11Mon
12Tue8:414.99:065.32:44-0.62:53-0.76:016:50Full Moon12Tue
13Wed9:294.99:565.43:31-0.63:38-0.76:006:51Waning Gibbous13Wed
14Thu10:204.810:475.34:20-0.64:26-0.65:596:51Waning Gibbous14Thu
15Fri11:124.711:415.25:12-0.45:17-0.45:586:52Waning Gibbous15Fri
16Sat12:074.56:08-0.26:15-0.15:566:52Waning Gibbous16Sat
17Sun12:395.01:064.47:090.07:190.15:556:53Third Quarter17Sun
18Mon1:414.92:104.48:130.18:270.25:546:54Third Quarter18Mon
19Tue2:474.83:164.49:160.19:330.25:536:54Third Quarter19Tue
20Wed3:524.74:194.610:140.010:360.25:526:55Waning Crescent20Wed
21Thu4:524.75:184.811:09-0.111:350.15:516:56Waning Crescent21Thu
22Fri5:484.76:115.012:01-0.25:506:56Waning Crescent22Fri
23Sat6:374.86:595.112:30-0.112:49-0.35:496:57Waning Crescent23Sat
24Sun8:224.78:435.21:20-0.22:34-0.36:487:57New Moon24Sun
25Mon9:044.79:235.23:06-0.23:15-0.36:477:58New Moon25Mon
26Tue9:454.610:025.13:48-0.23:54-0.26:467:59New Moon26Tue
27Wed10:244.410:415.04:28-0.14:310.06:457:59New Moon27Wed
28Thu11:034.311:184.95:060.15:080.26:448:00Waxing Crescent28Thu
29Fri11:424.211:564.75:450.35:450.46:438:01Waxing Crescent29Fri
30Sat12:214.06:250.56:250.66:438:01Waxing Crescent30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8720576)

Common Questions About St. Augustine (city dock), FL Tides

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What time does the tide turn (slack tide) in St. Augustine (city dock), FL today?

Slack tide in St. Augustine (city dock), FL is approximately 6:31 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in St. Augustine (city dock), FL?

St. Augustine (city dock), FL is currently in a neap phase. Tonight's moon is 52% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly minimum.

What datum are St. Augustine (city dock), FL tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for St. Augustine (city dock), FL?

Tide predictions for St. Augustine (city dock), FL come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for St. Augustine (city dock), FL?

Tide data for St. Augustine (city dock), FL is sourced from NOAA Station #8720576. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8720576.

What is the moon phase in St. Augustine (city dock), FL tonight?

Tonight the moon over St. Augustine (city dock), FL is First Quarter (52% illuminated). This places St. Augustine (city dock), FL in a neap tide cycle, so tidal ranges are near their weekly minimum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA