Tides Today & Tomorrow in Shell Key Channel, Florida Bay, FL

TIDE TIMES for Saturday, August 22, 2026
The tide is currently rising in Shell Key Channel, Florida Bay, FL.
Next low tide (tomorrow) : 12:36 am (0.7 ft)
Next high tide : in 1h 14m at 8:29 pm (0.8 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 6:59 am
Moon phase : Waxing Gibbous (73% illuminated)
Tide Station Location : Station #8723812
Common Questions About Tides

Shell Key Channel, Florida Bay, FL Tides - Oct 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:211.511:001.75:500.35:430.77:147:09New Moon1Sun
2Mon11:561.411:291.76:260.36:060.77:157:08Waxing Crescent2Mon
3Tue12:341.37:040.36:270.87:157:07Waxing Crescent3Tue
4Wed12:011.71:171.27:450.36:480.87:157:06Waxing Crescent4Wed
5Thu12:361.72:071.18:350.47:120.87:167:05Waxing Crescent5Thu
6Fri1:171.63:151.09:360.47:430.97:167:04First Quarter6Fri
7Sat2:091.64:481.010:470.58:400.97:177:03First Quarter7Sat
8Sun3:201.66:081.111:590.510:351.07:177:02First Quarter8Sun
9Mon4:461.66:531.21:000.57:187:01First Quarter9Mon
10Tue6:061.77:271.312:170.91:500.57:187:00Waxing Gibbous10Tue
11Wed7:141.77:591.51:310.82:320.57:186:59Waxing Gibbous11Wed
12Thu8:141.88:321.62:310.63:100.67:196:58Waxing Gibbous12Thu
13Fri9:101.89:061.83:260.43:460.67:196:57Full Moon13Fri
14Sat10:031.79:421.94:170.24:210.67:206:56Full Moon14Sat
15Sun10:551.610:222.05:070.04:570.67:206:55Full Moon15Sun
16Mon11:461.511:042.15:580.05:330.67:216:54Waning Gibbous16Mon
17Tue12:381.36:500.06:110.77:216:54Waning Gibbous17Tue
18Wed1:321.27:470.06:520.77:226:53Waning Gibbous18Wed
19Thu12:422.02:331.18:500.27:400.87:226:52Waning Gibbous19Thu
20Fri1:401.83:471.010:000.38:450.87:236:51Third Quarter20Fri
21Sat2:491.75:111.111:130.410:170.97:236:50Third Quarter21Sat
22Sun4:131.66:171.212:210.57:246:49Third Quarter22Sun
23Mon5:401.67:021.31:170.67:246:48Waning Crescent23Mon
24Tue6:531.67:361.41:090.82:020.67:256:48Waning Crescent24Tue
25Wed7:511.58:051.52:110.72:380.77:266:47Waning Crescent25Wed
26Thu8:381.58:311.63:020.63:110.77:266:46Waning Crescent26Thu
27Fri9:191.58:571.73:440.43:400.77:276:45New Moon27Fri
28Sat9:571.49:241.74:220.44:090.77:276:45New Moon28Sat
29Sun9:321.48:521.73:570.33:350.76:285:44New Moon29Sun
30Mon10:091.39:231.84:320.24:010.76:285:43New Moon30Mon
31Tue10:461.29:561.75:070.24:250.76:295:43Waxing Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723812)

Common Questions About Shell Key Channel, Florida Bay, FL Tides

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What time does the tide turn (slack tide) in Shell Key Channel, Florida Bay, FL today?

Slack tide in Shell Key Channel, Florida Bay, FL is approximately 10:32 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 Shell Key Channel, Florida Bay, FL?

Shell Key Channel, Florida Bay, FL is currently in a transitional phase. Tonight's moon is 73% 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 Shell Key Channel, Florida Bay, 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 Shell Key Channel, Florida Bay, FL?

Tide predictions for Shell Key Channel, Florida Bay, 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 Shell Key Channel, Florida Bay, FL?

Tide data for Shell Key Channel, Florida Bay, FL is sourced from NOAA Station #8723812. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8723812.

What is the moon phase in Shell Key Channel, Florida Bay, FL tonight?

Tonight the moon over Shell Key Channel, Florida Bay, FL is Waxing Gibbous (73% illuminated). This places Shell Key Channel, Florida Bay, 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