Tides Today & Tomorrow in Jacksonville Beach, FL

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Jacksonville Beach, FL.
Next low tide : 10:30 pm (1.1 ft)
Next high tide : in 4h 08m at 3:57 pm (5.0 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 6:56 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8720291
Common Questions About Tides

Jacksonville Beach, FL Tides - Feb 1927

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:015.87:194.612:36-0.71:29-0.67:166:01New Moon1Tue
2Wed7:486.08:094.91:25-0.92:14-0.87:166:02New Moon2Wed
3Thu8:376.09:015.12:15-1.12:59-1.07:156:03New Moon3Thu
4Fri9:266.09:525.43:06-1.13:44-1.27:146:04Waxing Crescent4Fri
5Sat10:155.810:445.53:58-1.14:30-1.27:146:05Waxing Crescent5Sat
6Sun11:055.511:405.54:53-0.95:22-1.17:136:05Waxing Crescent6Sun
7Mon12:005.15:55-0.66:19-0.97:126:06First Quarter7Mon
8Tue12:405.51:004.77:03-0.47:20-0.87:126:07First Quarter8Tue
9Wed1:425.42:024.48:09-0.28:21-0.67:116:08First Quarter9Wed
10Thu2:465.33:084.29:14-0.19:22-0.57:106:09First Quarter10Thu
11Fri3:525.34:154.110:21-0.110:25-0.47:096:10Waxing Gibbous11Fri
12Sat4:545.35:164.111:23-0.111:24-0.47:086:10Waxing Gibbous12Sat
13Sun5:485.36:064.212:16-0.27:086:11Waxing Gibbous13Sun
14Mon6:345.36:514.212:15-0.41:02-0.27:076:12Full Moon14Mon
15Tue7:155.27:324.31:01-0.41:44-0.27:066:13Full Moon15Tue
16Wed7:555.18:124.31:42-0.32:21-0.27:056:14Full Moon16Wed
17Thu8:325.08:504.42:21-0.22:55-0.27:046:14Full Moon17Thu
18Fri9:084.99:274.42:57-0.23:26-0.17:036:15Full Moon18Fri
19Sat9:444.710:044.53:32-0.13:56-0.17:026:16Waning Gibbous19Sat
20Sun10:194.610:424.54:080.04:270.07:016:17Waning Gibbous20Sun
21Mon10:574.411:244.54:460.25:010.07:006:18Waning Gibbous21Mon
22Tue11:394.15:320.35:420.16:596:18Waning Gibbous22Tue
23Wed12:124.512:283.96:280.56:330.26:586:19Third Quarter23Wed
24Thu1:064.51:233.77:300.67:290.26:576:20Third Quarter24Thu
25Fri2:034.62:223.78:300.68:260.26:566:21Third Quarter25Fri
26Sat3:024.73:243.79:310.59:250.06:556:21Third Quarter26Sat
27Sun4:045.04:263.910:320.310:28-0.26:546:22Waning Crescent27Sun
28Mon5:015.35:224.311:28-0.111:26-0.56:536:23Waning Crescent28Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8720291)

Common Questions About Jacksonville Beach, FL Tides

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What time does the tide turn (slack tide) in Jacksonville Beach, FL today?

Slack tide in Jacksonville Beach, FL is approximately 7:13 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 Jacksonville Beach, FL?

Jacksonville Beach, FL is currently in a transitional phase. Tonight's moon is 65% 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 Jacksonville Beach, 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 Jacksonville Beach, FL?

Tide predictions for Jacksonville Beach, 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 Jacksonville Beach, FL?

Tide data for Jacksonville Beach, FL is sourced from NOAA Station #8720291. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8720291.

What is the moon phase in Jacksonville Beach, FL tonight?

Tonight the moon over Jacksonville Beach, FL is First Quarter (65% illuminated). This places Jacksonville Beach, 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