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

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Mayport Naval Station, St Johns R, FL.
Next low tide : in 5h 28m at 10:13 pm (0.9 ft)
Next high tide (tomorrow) : 4:07 am (3.9 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 6:38 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8720211
Common Questions About Tides

Mayport Naval Station, St Johns R, FL Tides - Mar 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:484.77:044.212:00-0.112:49-0.16:516:24Waning Crescent1Wed
2Thu7:314.97:484.512:48-0.41:28-0.46:506:25New Moon2Thu
3Fri8:135.08:314.71:33-0.72:06-0.76:486:25New Moon3Fri
4Sat8:545.09:144.92:17-0.82:44-0.86:476:26New Moon4Sat
5Sun9:374.99:585.13:02-0.93:23-0.96:466:27Waxing Crescent5Sun
6Mon10:214.810:455.13:48-0.74:06-0.86:456:27Waxing Crescent6Mon
7Tue11:084.611:355.14:40-0.54:54-0.66:446:28Waxing Crescent7Tue
8Wed11:594.35:38-0.25:48-0.46:436:29Waxing Crescent8Wed
9Thu12:305.012:564.16:430.16:51-0.26:416:30First Quarter9Thu
10Fri1:344.92:033.97:530.37:58-0.16:406:30First Quarter10Fri
11Sat2:454.83:173.99:010.39:05-0.16:396:31First Quarter11Sat
12Sun4:584.85:274.011:050.211:10-0.17:387:32Waxing Gibbous12Sun
13Mon6:034.96:294.212:050.17:377:32Waxing Gibbous13Mon
14Tue6:595.07:234.412:13-0.31:00-0.27:367:33Waxing Gibbous14Tue
15Wed7:495.08:124.61:10-0.51:49-0.47:347:33Waxing Gibbous15Wed
16Thu8:345.08:564.82:02-0.62:31-0.57:337:34Full Moon16Thu
17Fri9:154.99:384.92:48-0.73:10-0.67:327:35Full Moon17Fri
18Sat9:554.810:174.93:31-0.73:44-0.57:317:35Full Moon18Sat
19Sun10:324.610:554.84:11-0.54:17-0.47:297:36Waning Gibbous19Sun
20Mon11:094.411:314.74:50-0.24:49-0.17:287:37Waning Gibbous20Mon
21Tue11:464.25:290.15:220.27:277:37Waning Gibbous21Tue
22Wed12:084.612:244.06:120.55:590.57:267:38Waning Gibbous22Wed
23Thu12:464.51:043.87:000.86:420.77:257:39Third Quarter23Thu
24Fri1:294.41:503.77:541.07:350.97:237:39Third Quarter24Fri
25Sat2:204.32:453.78:521.18:351.07:227:40Third Quarter25Sat
26Sun3:214.23:493.79:491.19:360.97:217:40Third Quarter26Sun
27Mon4:294.34:553.810:421.010:360.77:207:41Third Quarter27Mon
28Tue5:314.45:534.011:340.711:340.57:187:42Waning Crescent28Tue
29Wed6:244.66:454.412:220.47:177:42Waning Crescent29Wed
30Thu7:124.87:324.712:300.11:080.07:167:43Waning Crescent30Thu
31Fri7:574.98:185.01:22-0.31:51-0.47:157:44New Moon31Fri
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 1:10 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 Mayport Naval Station, St Johns R, FL?

Mayport Naval Station, St Johns R, FL is currently in a transitional phase. Tonight's moon is 62% 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 shifting between spring and neap.

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 First Quarter (62% illuminated). This places Mayport Naval Station, St Johns R, FL in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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