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

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Shell Key Channel, Florida Bay, FL.
Next low tide (tomorrow) : 1:43 am (0.5 ft)
Next high tide : in 4h 54m at 8:58 pm (0.8 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:54 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8723812
Common Questions About Tides

Shell Key Channel, Florida Bay, FL Tides - Oct 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:011.91:051.57:220.17:100.67:147:10Waning Gibbous1Thu
2Fri12:481.92:001.38:200.27:580.77:157:08Waning Gibbous2Fri
3Sat1:381.83:021.29:240.38:540.77:157:07Third Quarter3Sat
4Sun2:361.74:181.210:340.410:030.87:157:06Third Quarter4Sun
5Mon3:461.65:401.211:440.511:220.87:167:05Third Quarter5Mon
6Tue5:071.66:451.212:500.57:167:04Third Quarter6Tue
7Wed6:231.67:321.312:370.81:460.67:177:03Waning Crescent7Wed
8Thu7:241.68:091.41:420.72:320.67:177:02Waning Crescent8Thu
9Fri8:131.68:391.52:360.73:110.67:177:01Waning Crescent9Fri
10Sat8:551.69:071.63:220.63:450.67:187:00Waning Crescent10Sat
11Sun9:331.69:351.64:020.54:160.67:186:59New Moon11Sun
12Mon10:091.610:031.74:380.44:460.67:196:58New Moon12Mon
13Tue10:441.510:341.75:130.45:140.67:196:58New Moon13Tue
14Wed11:211.511:051.75:480.35:410.77:206:57New Moon14Wed
15Thu11:591.411:391.76:230.36:080.77:206:56Waxing Crescent15Thu
16Fri12:401.37:010.36:360.77:216:55Waxing Crescent16Fri
17Sat12:141.71:251.37:440.37:100.87:216:54Waxing Crescent17Sat
18Sun12:531.72:161.28:340.47:510.87:226:53Waxing Crescent18Sun
19Mon1:391.63:181.29:320.48:480.97:226:52First Quarter19Mon
20Tue2:371.64:291.210:370.510:070.97:236:51First Quarter20Tue
21Wed3:521.65:371.211:430.511:340.87:236:50First Quarter21Wed
22Thu5:151.66:331.412:440.57:246:50Waxing Gibbous22Thu
23Fri6:321.67:191.512:500.71:380.57:246:49Waxing Gibbous23Fri
24Sat7:381.78:011.61:560.52:260.57:256:48Waxing Gibbous24Sat
25Sun8:371.78:421.82:540.43:110.57:256:47Waxing Gibbous25Sun
26Mon9:311.79:241.93:470.23:530.57:266:46Full Moon26Mon
27Tue10:231.610:061.94:370.14:350.57:266:46Full Moon27Tue
28Wed11:131.510:492.05:270.05:160.57:276:45Full Moon28Wed
29Thu12:021.46:160.05:580.67:286:44Waning Gibbous29Thu
30Fri12:511.37:070.16:420.67:286:43Waning Gibbous30Fri
31Sat12:211.91:421.38:000.27:310.77:296:43Waning Gibbous31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723812)

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

Show All
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 11:20 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 13% 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 Waning Crescent (13% 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