Tides Today & Tomorrow in Sand Key Lighthouse, FL

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Sand Key Lighthouse, FL.
Next low tide : 8:59 pm (0.5 ft)
Next high tide : in 3h 12m at 3:59 pm (0.9 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:51 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8724635
Common Questions About Tides

Sand Key Lighthouse, FL Tides - Jun 1970

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:341.99:071.012:510.42:40-0.36:388:11Waning Crescent1Mon
2Tue8:151.99:561.01:360.43:27-0.46:388:12New Moon2Tue
3Wed8:551.910:410.92:180.54:09-0.46:388:12New Moon3Wed
4Thu9:351.911:210.92:580.54:48-0.36:388:13New Moon4Thu
5Fri10:151.911:590.93:370.55:27-0.36:388:13New Moon5Fri
6Sat10:541.84:150.46:05-0.26:388:13Waxing Crescent6Sat
7Sun12:360.811:35 AM1.74:550.46:45-0.16:388:14Waxing Crescent7Sun
8Mon1:140.912:171.65:400.57:250.06:388:14Waxing Crescent8Mon
9Tue1:540.91:031.56:340.58:060.16:388:15Waxing Crescent9Tue
10Wed2:370.91:561.37:390.58:480.26:388:15First Quarter10Wed
11Thu3:221.03:001.28:530.59:300.26:388:15First Quarter11Thu
12Fri4:081.24:191.010:080.410:110.36:388:16First Quarter12Fri
13Sat4:521.35:430.911:190.210:520.46:388:16First Quarter13Sat
14Sun5:341.46:580.912:240.16:388:16Waxing Gibbous14Sun
15Mon6:151.68:000.91:21-0.16:388:17Waxing Gibbous15Mon
16Tue6:561.78:520.912:160.52:14-0.26:388:17Waxing Gibbous16Tue
17Wed7:381.89:380.912:580.53:02-0.36:388:17Waxing Gibbous17Wed
18Thu8:222.010:200.81:420.53:48-0.46:388:18Full Moon18Thu
19Fri9:082.111:000.82:280.44:32-0.56:398:18Full Moon19Fri
20Sat9:562.111:400.93:160.45:16-0.46:398:18Full Moon20Sat
21Sun10:462.14:070.35:59-0.46:398:18Waning Gibbous21Sun
22Mon12:220.911:39 AM1.95:040.36:43-0.36:398:19Waning Gibbous22Mon
23Tue1:061.012:351.86:070.37:26-0.26:398:19Waning Gibbous23Tue
24Wed1:521.21:361.57:190.38:09-0.16:408:19Third Quarter24Wed
25Thu2:421.32:451.38:380.28:530.16:408:19Third Quarter25Thu
26Fri3:341.54:061.010:000.19:390.26:408:19Third Quarter26Fri
27Sat4:291.65:370.911:190.010:270.36:418:19Third Quarter27Sat
28Sun5:251.77:000.912:34-0.16:418:19Waning Crescent28Sun
29Mon6:201.88:080.91:39-0.26:418:20Waning Crescent29Mon
30Tue7:111.99:040.912:120.52:35-0.26:428:20Waning Crescent30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8724635)

Common Questions About Sand Key Lighthouse, FL Tides

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What time does the tide turn (slack tide) in Sand Key Lighthouse, FL today?

Slack tide in Sand Key Lighthouse, FL is approximately 6:29 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 Sand Key Lighthouse, FL?

Sand Key Lighthouse, FL is currently in a neap phase. Tonight's moon is 52% 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 minimum.

What datum are Sand Key Lighthouse, 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 Sand Key Lighthouse, FL?

Tide predictions for Sand Key Lighthouse, 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 Sand Key Lighthouse, FL?

Tide data for Sand Key Lighthouse, FL is sourced from NOAA Station #8724635. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8724635.

What is the moon phase in Sand Key Lighthouse, FL tonight?

Tonight the moon over Sand Key Lighthouse, FL is First Quarter (52% illuminated). This places Sand Key Lighthouse, FL in a neap tide cycle, so tidal ranges are near their weekly minimum 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