Tides Today & Tomorrow in Mayport Naval Station, St Johns R, FL

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Mayport Naval Station, St Johns R, FL.
Next low tide : in 5h 27m at 5:40 pm (0.5 ft)
Next high tide (tomorrow) : 12:21 am (4.6 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:28 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8720211
Common Questions About Tides

Mayport Naval Station, St Johns R, FL Tides - Jun 2057

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:424.19:015.02:300.12:22-0.16:238:23New Moon1Fri
2Sat9:224.09:395.03:080.02:570.06:238:23New Moon2Sat
3Sun10:024.010:174.93:440.13:310.06:238:24New Moon3Sun
4Mon10:423.910:554.94:190.24:060.26:238:24Waxing Crescent4Mon
5Tue11:223.911:334.84:540.34:430.36:238:25Waxing Crescent5Tue
6Wed12:033.95:320.45:240.56:238:25Waxing Crescent6Wed
7Thu12:124.812:453.96:140.56:120.76:238:26Waxing Crescent7Thu
8Fri12:534.71:294.07:020.67:080.86:238:26First Quarter8Fri
9Sat1:384.72:184.17:530.58:100.76:238:27First Quarter9Sat
10Sun2:284.63:134.38:440.49:110.66:238:27First Quarter10Sun
11Mon3:244.54:124.69:350.110:120.46:238:28First Quarter11Mon
12Tue4:264.55:124.910:27-0.211:120.16:238:28Waxing Gibbous12Tue
13Wed5:284.56:105.211:21-0.56:238:28Waxing Gibbous13Wed
14Thu6:274.57:065.512:12-0.212:16-0.76:238:29Waxing Gibbous14Thu
15Fri7:254.68:015.71:11-0.61:11-1.06:238:29Full Moon15Fri
16Sat8:214.68:565.92:08-0.92:05-1.26:238:29Full Moon16Sat
17Sun9:184.79:505.93:02-1.02:59-1.36:238:30Full Moon17Sun
18Mon10:144.710:455.83:55-1.13:52-1.26:238:30Full Moon18Mon
19Tue11:094.711:395.74:48-1.04:46-1.06:238:30Waning Gibbous19Tue
20Wed12:054.75:43-0.85:44-0.66:248:30Waning Gibbous20Wed
21Thu12:325.41:004.66:40-0.66:47-0.26:248:31Waning Gibbous21Thu
22Fri1:265.11:574.67:39-0.47:530.16:248:31Third Quarter22Fri
23Sat2:204.92:554.68:35-0.28:560.36:248:31Third Quarter23Sat
24Sun3:164.63:534.79:26-0.19:550.56:258:31Third Quarter24Sun
25Mon4:124.34:494.710:140.010:500.56:258:31Third Quarter25Mon
26Tue5:064.25:414.810:590.111:420.56:258:31Waning Crescent26Tue
27Wed5:574.16:284.811:440.26:268:31Waning Crescent27Wed
28Thu6:444.07:124.912:320.512:280.16:268:31Waning Crescent28Thu
29Fri7:293.97:544.91:200.41:110.16:268:31Waning Crescent29Fri
30Sat8:133.98:354.92:040.31:520.06:278:31New Moon30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8720211)

Common Questions About Mayport Naval Station, St Johns R, FL Tides

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What time does the tide turn (slack tide) in Mayport Naval Station, St Johns R, FL today?

Slack tide in Mayport Naval Station, St Johns R, FL is approximately 9:00 pm — 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 Mayport Naval Station, St Johns R, FL?

Mayport Naval Station, St Johns R, FL is currently in a spring phase. Tonight's moon is 81% 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 maximum.

What datum are Mayport Naval Station, St Johns R, 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 Mayport Naval Station, St Johns R, FL?

Tide predictions for Mayport Naval Station, St Johns R, 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 Mayport Naval Station, St Johns R, FL?

Tide data for Mayport Naval Station, St Johns R, FL is sourced from NOAA Station #8720211. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8720211.

What is the moon phase in Mayport Naval Station, St Johns R, FL tonight?

Tonight the moon over Mayport Naval Station, St Johns R, FL is Waning Gibbous (81% illuminated). This places Mayport Naval Station, St Johns R, FL in a spring tide cycle, so tidal ranges are near their weekly maximum 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