Tides Today & Tomorrow in Shell Island, north end, Crystal River, FL

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Shell Island, north end, Crystal River, FL.
Next low tide (tomorrow) : in 2h 04m at 1:15 am (1.3 ft)
Next high tide (tomorrow) : 10:07 am (2.6 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 7:03 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8727359
Common Questions About Tides

Shell Island, north end, Crystal River, FL Tides - May 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:082.35:513.012:17-0.211:49 AM0.96:498:06Waning Gibbous1Tue
2Wed6:562.26:372.912:56-0.112:111.06:488:06Waning Gibbous2Wed
3Thu7:512.07:312.91:460.112:371.16:478:07Third Quarter3Thu
4Fri8:511.98:332.82:570.21:181.26:468:08Third Quarter4Fri
5Sat9:511.99:382.74:210.34:011.36:468:08Third Quarter5Sat
6Sun10:502.010:462.65:300.35:361.06:458:09Third Quarter6Sun
7Mon11:502.26:260.26:400.76:448:09Waning Crescent7Mon
8Tue12:002.612:472.47:140.27:340.36:438:10Waning Crescent8Tue
9Wed1:132.71:352.87:570.38:24-0.16:438:11Waning Crescent9Wed
10Thu2:142.72:163.18:380.49:15-0.46:428:11New Moon10Thu
11Fri3:052.72:563.39:180.510:05-0.66:418:12New Moon11Fri
12Sat3:512.63:353.59:590.610:54-0.76:418:12New Moon12Sat
13Sun4:362.54:163.510:400.711:41-0.66:408:13Waxing Crescent13Sun
14Mon5:212.34:583.411:200.86:398:14Waxing Crescent14Mon
15Tue6:062.25:443.312:27-0.511:58 AM0.96:398:14Waxing Crescent15Tue
16Wed6:552.06:333.11:14-0.312:371.06:388:15Waxing Crescent16Wed
17Thu7:471.97:272.82:080.01:221.16:388:16First Quarter17Thu
18Fri8:431.88:282.63:140.32:451.26:378:16First Quarter18Fri
19Sat9:371.89:302.44:230.44:271.16:378:17First Quarter19Sat
20Sun10:281.910:322.35:230.55:391.06:368:17First Quarter20Sun
21Mon11:202.011:392.26:150.66:360.76:368:18Waxing Gibbous21Mon
22Tue12:132.26:580.67:230.56:358:19Waxing Gibbous22Tue
23Wed12:502.21:002.47:370.78:060.36:358:19Waxing Gibbous23Wed
24Thu1:472.31:402.78:120.78:470.16:348:20Waxing Gibbous24Thu
25Fri2:302.32:172.98:460.89:27-0.16:348:20Full Moon25Fri
26Sat3:092.42:533.09:190.810:08-0.26:348:21Full Moon26Sat
27Sun3:462.43:293.19:530.910:48-0.36:338:21Full Moon27Sun
28Mon4:252.44:063.210:260.911:28-0.36:338:22Full Moon28Mon
29Tue5:072.34:463.210:590.96:338:22Waning Gibbous29Tue
30Wed5:512.25:303.212:08-0.311:31 AM1.06:328:23Waning Gibbous30Wed
31Thu6:402.16:193.112:49-0.212:051.06:328:24Waning Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8727359)

Common Questions About Shell Island, north end, Crystal River, FL Tides

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What time does the tide turn (slack tide) in Shell Island, north end, Crystal River, FL today?

Slack tide in Shell Island, north end, Crystal River, FL is approximately 5:41 am — 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 Island, north end, Crystal River, FL?

Shell Island, north end, Crystal River, FL is currently in a transitional phase. Tonight's moon is 65% 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 Island, north end, Crystal River, 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 Island, north end, Crystal River, FL?

Tide predictions for Shell Island, north end, Crystal River, 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 Island, north end, Crystal River, FL?

Tide data for Shell Island, north end, Crystal River, FL is sourced from NOAA Station #8727359. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8727359.

What is the moon phase in Shell Island, north end, Crystal River, FL tonight?

Tonight the moon over Shell Island, north end, Crystal River, FL is First Quarter (65% illuminated). This places Shell Island, north end, Crystal River, 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