Tides Today & Tomorrow in Sand Key Lighthouse, FL

TIDE TIMES for Saturday, July 18, 2026
The tide is currently falling in Sand Key Lighthouse, FL.
Next low tide : in 2h 46m at 7:03 pm (0.0 ft)
Next high tide (tomorrow) : 1:31 am (1.4 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:49 am
Moon phase : Waxing Crescent (23% illuminated)
Tide Station Location : Station #8724635
Common Questions About Tides

Sand Key Lighthouse, FL Tides - Feb 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:511.01:041.66:250.07:58-0.27:096:12First Quarter1Mon
2Tue2:010.72:001.67:070.19:17-0.27:086:13First Quarter2Tue
3Wed3:350.63:081.67:590.210:42-0.27:086:14First Quarter3Wed
4Thu5:200.54:251.69:030.37:086:14Waxing Gibbous4Thu
5Fri6:390.65:371.612:05-0.210:17 AM0.47:076:15Waxing Gibbous5Fri
6Sat7:330.76:371.61:11-0.311:31 AM0.37:076:16Waxing Gibbous6Sat
7Sun8:140.77:271.61:59-0.312:350.37:066:16Waxing Gibbous7Sun
8Mon8:480.88:101.62:36-0.31:270.27:056:17Full Moon8Mon
9Tue9:170.88:481.63:06-0.32:120.17:056:18Full Moon9Tue
10Wed9:420.99:231.53:30-0.32:520.17:046:18Full Moon10Wed
11Thu10:051.09:571.43:53-0.23:300.07:046:19Full Moon11Thu
12Fri10:271.110:301.34:15-0.14:090.07:036:20Waning Gibbous12Fri
13Sat10:491.111:051.24:38-0.14:49-0.17:026:20Waning Gibbous13Sat
14Sun11:131.211:421.05:020.05:33-0.17:026:21Waning Gibbous14Sun
15Mon11:421.35:280.16:23-0.17:016:22Waning Gibbous15Mon
16Tue12:240.812:151.35:540.27:210.07:006:22Third Quarter16Tue
17Wed1:160.712:591.36:240.38:300.07:006:23Third Quarter17Wed
18Thu2:360.51:571.47:000.49:500.06:596:23Third Quarter18Thu
19Fri4:480.53:151.47:550.411:11-0.16:586:24Third Quarter19Fri
20Sat6:200.54:381.59:170.46:576:24Waning Crescent20Sat
21Sun7:030.65:481.612:19-0.210:40 AM0.46:566:25Waning Crescent21Sun
22Mon7:350.76:461.71:10-0.311:54 AM0.36:566:26Waning Crescent22Mon
23Tue8:040.87:381.71:51-0.412:590.16:556:26Waning Crescent23Tue
24Wed8:341.08:281.72:26-0.41:57-0.16:546:27New Moon24Wed
25Thu9:061.29:161.62:58-0.42:51-0.36:536:27New Moon25Thu
26Fri9:401.410:051.53:29-0.33:44-0.46:526:28New Moon26Fri
27Sat10:161.610:541.34:01-0.24:36-0.46:516:28Waxing Crescent27Sat
28Sun10:551.711:451.14:33-0.15:31-0.46:516:29Waxing Crescent28Sun
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 10:17 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 transitional phase. Tonight's moon is 23% 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 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 Waxing Crescent (23% illuminated). This places Sand Key Lighthouse, 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