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

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Shell Key Channel, Florida Bay, FL.
Next low tide : in 4h 05m at 7:43 pm (0.4 ft)
Next high tide (tomorrow) : 1:08 am (1.5 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:57 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8723812
Common Questions About Tides

Shell Key Channel, Florida Bay, FL Tides - Oct 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:251.93:171.19:280.28:280.87:147:10First Quarter1Wed
2Thu2:231.84:501.010:440.39:330.97:147:09First Quarter2Thu
3Fri3:371.76:241.012:040.47:157:08First Quarter3Fri
4Sat5:061.77:241.11:190.47:157:07Waxing Gibbous4Sat
5Sun6:281.78:061.212:290.82:180.47:167:05Waxing Gibbous5Sun
6Mon7:351.78:401.41:440.83:030.57:167:04Waxing Gibbous6Mon
7Tue8:301.79:101.52:450.73:390.57:177:03Waxing Gibbous7Tue
8Wed9:171.79:371.63:360.64:100.67:177:02Full Moon8Wed
9Thu9:581.710:021.74:210.54:400.67:177:01Full Moon9Thu
10Fri10:361.610:271.75:010.45:090.67:187:00Full Moon10Fri
11Sat11:121.610:531.75:390.45:360.77:187:00Full Moon11Sat
12Sun11:481.511:211.76:170.36:030.77:196:59Waning Gibbous12Sun
13Mon12:251.46:550.36:280.87:196:58Waning Gibbous13Mon
14Tue1:061.27:360.36:510.87:206:57Waning Gibbous14Tue
15Wed12:241.71:521.18:220.47:140.87:206:56Waning Gibbous15Wed
16Thu1:011.62:511.19:170.47:400.97:216:55Third Quarter16Thu
17Fri1:461.64:121.010:240.58:221.07:216:54Third Quarter17Fri
18Sat2:451.65:451.111:360.59:561.07:226:53Third Quarter18Sat
19Sun4:051.56:411.112:400.57:226:52Third Quarter19Sun
20Mon5:301.67:181.31:340.57:236:51Waning Crescent20Mon
21Tue6:421.67:491.41:050.92:170.57:236:50Waning Crescent21Tue
22Wed7:441.78:201.52:060.72:550.57:246:50Waning Crescent22Wed
23Thu8:391.78:521.72:590.53:310.57:246:49Waning Crescent23Thu
24Fri9:321.79:261.83:490.34:050.67:256:48New Moon24Fri
25Sat10:241.610:021.94:380.14:400.67:256:47New Moon25Sat
26Sun10:161.59:422.04:270.04:150.66:265:46New Moon26Sun
27Mon11:081.410:252.05:17-0.14:520.66:265:46Waxing Crescent27Mon
28Tue12:011.36:100.05:310.76:275:45Waxing Crescent28Tue
29Wed1:001.17:090.06:140.76:285:44Waxing Crescent29Wed
30Thu12:051.92:081.08:140.27:090.86:285:43First Quarter30Thu
31Fri1:071.83:301.09:270.38:270.86:295:43First Quarter31Fri
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 10:25 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 spring phase. Tonight's moon is 18% 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 maximum.

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 Crescent (18% illuminated). This places Shell Key Channel, Florida Bay, FL in a spring tide cycle, so tidal ranges are near their weekly maximum 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