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 4h 01m 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 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:174.111:274.84:460.24:400.36:248:22Waxing Crescent1Thu
2Fri11:574.15:220.35:210.56:238:23Waxing Crescent2Fri
3Sat12:054.812:384.16:020.46:070.66:238:23Waxing Crescent3Sat
4Sun12:454.71:214.26:470.57:020.76:238:24First Quarter4Sun
5Mon1:284.62:084.37:370.48:020.76:238:24First Quarter5Mon
6Tue2:174.63:014.58:290.39:030.66:238:25First Quarter6Tue
7Wed3:124.54:004.79:210.110:030.46:238:25First Quarter7Wed
8Thu4:144.55:015.010:15-0.211:030.16:228:26Waxing Gibbous8Thu
9Fri5:174.56:015.311:10-0.56:228:26Waxing Gibbous9Fri
10Sat6:194.56:585.512:03-0.212:06-0.86:228:27Waxing Gibbous10Sat
11Sun7:184.67:545.81:02-0.61:03-1.06:228:27Full Moon11Sun
12Mon8:154.78:495.91:59-0.91:59-1.36:228:27Full Moon12Mon
13Tue9:114.89:435.92:53-1.12:53-1.46:228:28Full Moon13Tue
14Wed10:074.910:375.93:45-1.23:47-1.36:228:28Full Moon14Wed
15Thu11:024.911:305.74:37-1.24:41-1.16:238:29Waning Gibbous15Thu
16Fri11:574.95:31-1.05:38-0.76:238:29Waning Gibbous16Fri
17Sat12:225.512:524.96:26-0.86:39-0.46:238:29Waning Gibbous17Sat
18Sun1:155.21:474.87:24-0.57:440.06:238:29Third Quarter18Sun
19Mon2:094.92:444.88:20-0.38:470.26:238:30Third Quarter19Mon
20Tue3:044.63:424.89:13-0.29:460.46:238:30Third Quarter20Tue
21Wed4:014.44:394.810:020.010:410.56:238:30Third Quarter21Wed
22Thu4:564.25:324.810:490.111:330.56:248:30Waning Crescent22Thu
23Fri5:494.16:214.911:350.16:248:31Waning Crescent23Fri
24Sat6:374.07:064.912:240.512:210.16:248:31Waning Crescent24Sat
25Sun7:234.07:484.91:120.41:050.16:248:31Waning Crescent25Sun
26Mon8:074.08:295.01:560.31:480.06:258:31New Moon26Mon
27Tue8:504.09:095.02:360.12:27-0.16:258:31New Moon27Tue
28Wed9:314.19:475.03:130.03:04-0.16:258:31New Moon28Wed
29Thu10:124.110:254.93:470.03:410.06:268:31New Moon29Thu
30Fri10:524.111:034.94:200.04:180.16:268:31Waxing Crescent30Fri
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