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 : in 2h 09m at 5:27 pm (0.5 ft)
Next high tide : 10:16 pm (1.5 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 - Dec 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:322.36:520.46:540.97:065:33Waning Crescent1Sat
2Sun12:222.81:172.47:330.27:280.97:075:33New Moon2Sun
3Mon1:003.01:552.48:130.18:021.07:085:33New Moon3Mon
4Tue1:373.22:312.58:530.08:351.07:095:33New Moon4Tue
5Wed2:133.33:082.59:33-0.19:091.07:095:33New Moon5Wed
6Thu2:503.43:472.510:13-0.19:421.17:105:33New Moon6Thu
7Fri3:283.44:292.410:51-0.110:151.17:115:33Waxing Crescent7Fri
8Sat4:103.35:152.311:300.010:471.17:115:33Waxing Crescent8Sat
9Sun4:563.26:052.312:120.17:125:33Waxing Crescent9Sun
10Mon5:473.16:592.21:010.37:135:33First Quarter10Mon
11Tue6:462.97:542.312:141.22:040.47:145:34First Quarter11Tue
12Wed7:502.88:472.41:571.23:120.67:145:34First Quarter12Wed
13Thu8:562.69:382.63:431.04:130.77:155:34First Quarter13Thu
14Fri10:052.510:302.84:550.75:060.87:165:35Waxing Gibbous14Fri
15Sat11:212.411:253.15:540.35:530.97:165:35Waxing Gibbous15Sat
16Sun12:352.46:470.06:370.97:175:35Waxing Gibbous16Sun
17Mon12:183.31:322.47:38-0.37:201.07:175:36Full Moon17Mon
18Tue1:063.62:192.48:29-0.58:031.07:185:36Full Moon18Tue
19Wed1:513.73:022.49:19-0.58:491.07:195:36Full Moon19Wed
20Thu2:353.83:442.410:08-0.59:371.07:195:37Full Moon20Thu
21Fri3:193.74:262.310:53-0.410:231.07:205:37Waning Gibbous21Fri
22Sat4:043.65:092.211:36-0.211:071.07:205:38Waning Gibbous22Sat
23Sun4:523.45:542.212:190.07:215:38Waning Gibbous23Sun
24Mon5:423.16:432.21:060.37:215:39Third Quarter24Mon
25Tue6:362.87:322.312:501.12:000.67:215:40Third Quarter25Tue
26Wed7:352.68:202.32:111.12:590.87:225:40Third Quarter26Wed
27Thu8:342.39:062.43:351.03:570.97:225:41Third Quarter27Thu
28Fri9:342.29:542.54:420.84:491.07:235:41Waning Crescent28Fri
29Sat10:412.110:452.75:380.65:351.17:235:42Waning Crescent29Sat
30Sun11:572.111:382.86:270.46:171.17:235:43Waning Crescent30Sun
31Mon12:552.27:110.36:551.17:245:43Waning Crescent31Mon
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 7:51 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 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