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

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Shell Key Channel, Florida Bay, FL.
Next low tide : in 32m at 10:32 am (0.3 ft)
Next high tide : 3:38 pm (0.8 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 6:58 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8723812
Common Questions About Tides

Shell Key Channel, Florida Bay, FL Tides - Oct 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:161.610:211.64:460.55:030.67:147:09New Moon1Wed
2Thu10:521.610:511.75:210.45:300.67:157:08New Moon2Thu
3Fri11:291.511:221.75:560.45:570.67:157:07New Moon3Fri
4Sat12:071.56:320.46:240.77:157:06Waxing Crescent4Sat
5Sun12:491.47:110.46:530.77:167:05Waxing Crescent5Sun
6Mon12:301.71:351.37:560.47:260.87:167:04Waxing Crescent6Mon
7Tue1:091.72:291.28:490.48:080.87:177:03Waxing Crescent7Tue
8Wed1:561.63:361.29:520.49:070.97:177:02First Quarter8Wed
9Thu2:571.64:551.211:000.510:260.97:187:01First Quarter9Thu
10Fri4:151.66:051.212:080.57:187:00First Quarter10Fri
11Sat5:381.66:591.31:100.57:196:59Waxing Gibbous11Sat
12Sun6:511.77:441.51:060.72:040.57:196:58Waxing Gibbous12Sun
13Mon7:551.88:261.62:100.62:510.57:196:57Waxing Gibbous13Mon
14Tue8:521.89:061.73:080.43:350.57:206:56Full Moon14Tue
15Wed9:461.89:461.84:000.24:160.57:206:55Full Moon15Wed
16Thu10:371.710:271.94:510.14:570.57:216:54Full Moon16Thu
17Fri11:261.611:091.95:400.15:370.57:216:54Full Moon17Fri
18Sat12:151.56:300.16:180.67:226:53Waning Gibbous18Sat
19Sun1:041.47:220.17:010.67:226:52Waning Gibbous19Sun
20Mon12:371.91:571.38:170.27:490.77:236:51Waning Gibbous20Mon
21Tue1:261.82:551.29:170.38:470.87:236:50Third Quarter21Tue
22Wed2:201.64:051.210:220.49:580.87:246:49Third Quarter22Wed
23Thu3:261.55:211.211:270.511:190.97:246:48Third Quarter23Thu
24Fri4:451.56:241.312:290.67:256:48Third Quarter24Fri
25Sat6:021.47:081.312:330.81:230.67:266:47Waning Crescent25Sat
26Sun6:061.56:421.41:370.71:090.66:265:46Waning Crescent26Sun
27Mon6:571.57:121.51:290.61:480.66:275:45Waning Crescent27Mon
28Tue7:401.57:421.62:130.52:220.66:275:45Waning Crescent28Tue
29Wed8:201.58:111.72:520.52:530.66:285:44New Moon29Wed
30Thu8:581.48:431.73:280.43:230.66:285:43New Moon30Thu
31Fri9:361.49:151.74:020.33:510.66:295:42New Moon31Fri
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 1:05 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 neap phase. Tonight's moon is 46% 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 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 First Quarter (46% illuminated). This places Shell Key Channel, Florida Bay, 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