Tides Today & Tomorrow in Jacksonville Beach, FL

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Jacksonville Beach, FL.
Next low tide : in 5h 59m at 7:31 pm (0.7 ft)
Next high tide (tomorrow) : 1:22 am (4.5 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 6:54 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8720291
Common Questions About Tides

Jacksonville Beach, FL Tides - Apr 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:374.79:025.72:38-0.32:37-0.56:156:44Full Moon1Sun
2Mon9:204.79:475.83:20-0.33:16-0.56:136:44Waning Gibbous2Mon
3Tue10:054.610:365.84:04-0.24:00-0.56:126:45Waning Gibbous3Tue
4Wed10:564.411:305.64:54-0.14:51-0.36:116:45Waning Gibbous4Wed
5Thu11:544.35:560.15:55-0.26:106:46Third Quarter5Thu
6Fri12:325.51:014.37:060.17:11-0.16:096:47Third Quarter6Fri
7Sat1:395.42:104.48:120.18:23-0.16:076:47Third Quarter7Sat
8Sun2:455.33:194.69:15-0.19:32-0.26:066:48Third Quarter8Sun
9Mon3:515.34:255.010:15-0.310:39-0.36:056:48Waning Crescent9Mon
10Tue4:525.35:225.411:11-0.511:39-0.56:046:49Waning Crescent10Tue
11Wed5:455.46:125.712:00-0.76:036:50Waning Crescent11Wed
12Thu6:325.36:575.912:32-0.612:45-0.76:026:50New Moon12Thu
13Fri7:165.17:415.91:20-0.61:28-0.76:016:51New Moon13Fri
14Sat8:004.98:255.82:07-0.52:09-0.65:596:51New Moon14Sat
15Sun8:444.79:085.72:50-0.42:49-0.45:586:52New Moon15Sun
16Mon9:264.59:505.53:32-0.23:27-0.25:576:53Waxing Crescent16Mon
17Tue10:084.310:335.24:130.14:060.15:566:53Waxing Crescent17Tue
18Wed10:524.111:185.04:560.34:480.35:556:54Waxing Crescent18Wed
19Thu11:403.95:470.65:400.55:546:55Waxing Crescent19Thu
20Fri12:104.812:363.86:460.76:440.75:536:55First Quarter20Fri
21Sat1:064.61:353.87:430.77:470.75:526:56First Quarter21Sat
22Sun2:034.52:343.98:350.78:460.75:516:57First Quarter22Sun
23Mon2:594.43:324.29:260.69:430.65:506:57First Quarter23Mon
24Tue3:544.44:254.510:140.410:390.55:496:58Waxing Gibbous24Tue
25Wed4:444.55:114.810:580.211:280.35:486:58Waxing Gibbous25Wed
26Thu5:284.65:525.211:370.15:476:59Waxing Gibbous26Thu
27Fri6:084.66:305.512:120.112:14-0.15:467:00Waxing Gibbous27Fri
28Sat6:474.67:105.812:54-0.112:50-0.35:457:00Full Moon28Sat
29Sun8:274.68:536.01:36-0.22:28-0.56:448:01Full Moon29Sun
30Mon9:124.69:406.13:20-0.33:10-0.66:438:02Full Moon30Mon
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 10:26 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 36% 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 (36% 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