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

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Shell Island, north end, Crystal River, FL.
Next low tide (tomorrow) : 12:57 am (0.6 ft)
Next high tide : in 2h 17m at 6:40 pm (2.4 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 7:00 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8727359
Common Questions About Tides

Shell Island, north end, Crystal River, FL Tides - Feb 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:182.56:312.912:380.412:340.87:196:09First Quarter1Fri
2Sat7:112.27:162.91:400.51:011.07:196:09First Quarter2Sat
3Sun8:061.98:052.92:560.51:221.37:186:10First Quarter3Sun
4Mon9:041.78:572.84:130.63:021.47:186:11First Quarter4Mon
5Tue10:121.69:552.85:220.54:351.57:176:12Waxing Gibbous5Tue
6Wed2:101.66:200.45:411.47:166:13Waxing Gibbous6Wed
7Thu1:431.77:100.36:331.27:166:13Waxing Gibbous7Thu
8Fri12:132.91:471.97:550.27:181.17:156:14Waxing Gibbous8Fri
9Sat1:063.12:092.08:360.28:010.97:146:15Full Moon9Sat
10Sun1:493.22:362.29:130.18:430.87:136:16Full Moon10Sun
11Mon2:283.33:062.49:470.19:240.77:136:17Full Moon11Mon
12Tue3:063.33:372.510:170.110:030.57:126:17Full Moon12Tue
13Wed3:453.24:102.710:440.210:390.47:116:18Waning Gibbous13Wed
14Thu4:263.14:452.811:080.411:150.37:106:19Waning Gibbous14Thu
15Fri5:092.95:222.911:290.611:540.37:106:20Waning Gibbous15Fri
16Sat5:572.66:022.911:470.87:096:20Waning Gibbous16Sat
17Sun6:512.36:493.012:420.312:021.07:086:21Third Quarter17Sun
18Mon7:512.17:423.01:550.412:181.27:076:22Third Quarter18Mon
19Tue8:561.88:413.03:330.412:401.47:066:23Third Quarter19Tue
20Wed10:121.79:463.14:570.23:411.57:056:23Waning Crescent20Wed
21Thu12:001.76:050.05:231.47:046:24Waning Crescent21Thu
22Fri1:081.97:00-0.16:281.17:036:25Waning Crescent22Fri
23Sat12:163.31:442.17:50-0.27:230.87:026:25Waning Crescent23Sat
24Sun1:173.42:152.38:35-0.28:170.57:016:26New Moon24Sun
25Mon2:083.52:472.69:16-0.29:090.37:006:27New Moon25Mon
26Tue2:543.43:202.89:530.09:580.16:596:27New Moon26Tue
27Wed3:383.23:543.010:270.210:430.06:586:28Waxing Crescent27Wed
28Thu4:223.04:293.110:580.411:270.06:576:29Waxing Crescent28Thu
29Fri5:062.75:073.111:240.66:566:29Waxing Crescent29Fri
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 9:48 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 27% 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 Waxing Crescent (27% 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