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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in St. Augustine (city dock), FL.
Next low tide : in 4h 04m at 9:19 pm (0.5 ft)
Next high tide (tomorrow) : 3:08 am (4.3 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 6:25 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8720576
Common Questions About Tides

St. Augustine (city dock), FL Tides - Sep 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:194.25:004.810:410.811:361.17:027:48Waxing Gibbous1Tue
2Wed5:184.35:585.011:360.67:027:46Waxing Gibbous2Wed
3Thu6:154.56:535.212:280.812:320.47:037:45Waxing Gibbous3Thu
4Fri7:114.87:455.41:200.51:280.17:037:44Waxing Gibbous4Fri
5Sat8:045.18:355.62:100.22:21-0.17:047:43Full Moon5Sat
6Sun8:555.39:255.72:58-0.13:13-0.37:057:42Full Moon6Sun
7Mon9:485.510:165.73:45-0.34:04-0.37:057:40Full Moon7Mon
8Tue10:415.611:085.64:32-0.44:56-0.37:067:39Waning Gibbous8Tue
9Wed11:355.75:21-0.45:50-0.17:067:38Waning Gibbous9Wed
10Thu12:015.412:305.76:12-0.26:470.27:077:37Waning Gibbous10Thu
11Fri12:545.21:255.67:060.07:480.57:077:35Third Quarter11Fri
12Sat1:495.02:245.58:040.28:530.77:087:34Third Quarter12Sat
13Sun2:484.83:255.49:060.49:560.87:087:33Third Quarter13Sun
14Mon3:504.74:275.310:080.510:560.87:097:32Third Quarter14Mon
15Tue4:524.75:275.311:070.511:520.87:097:31Waning Crescent15Tue
16Wed5:514.76:225.312:030.67:107:29Waning Crescent16Wed
17Thu6:464.87:125.312:450.712:580.57:107:28Waning Crescent17Thu
18Fri7:354.97:575.31:340.61:490.57:117:27Waning Crescent18Fri
19Sat8:205.08:385.32:190.62:350.57:117:26New Moon19Sat
20Sun9:025.19:175.22:590.53:180.57:127:24New Moon20Sun
21Mon9:425.19:555.13:370.53:580.67:137:23New Moon21Mon
22Tue10:205.110:335.04:120.64:370.87:137:22New Moon22Tue
23Wed10:585.011:114.84:460.75:160.97:147:21Waxing Crescent23Wed
24Thu11:355.011:494.75:200.95:551.17:147:19Waxing Crescent24Thu
25Fri12:124.95:551.06:351.37:157:18Waxing Crescent25Fri
26Sat12:284.612:514.86:321.17:201.57:157:17Waxing Crescent26Sat
27Sun1:094.51:344.87:151.28:121.67:167:16First Quarter27Sun
28Mon1:544.42:234.88:071.39:081.67:167:14First Quarter28Mon
29Tue2:464.43:204.99:061.210:041.47:177:13First Quarter29Tue
30Wed3:444.54:205.010:071.111:001.27:177:12First Quarter30Wed
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 12:13 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 48% 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 (48% 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