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

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Shell Island, north end, Crystal River, FL.
Next low tide (tomorrow) : in 4h 55m at 12:57 am (0.6 ft)
Next high tide (tomorrow) : 6:45 am (2.8 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 - Sep 2090

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:282.89:251.82:291.04:160.37:097:52First Quarter1Fri
2Sat9:252.710:261.73:531.15:290.37:097:50First Quarter2Sat
3Sun10:242.611:391.75:141.16:310.37:107:49Waxing Gibbous3Sun
4Mon11:282.66:191.07:230.27:107:48Waxing Gibbous4Mon
5Tue1:091.812:382.67:120.98:080.27:117:47Waxing Gibbous5Tue
6Wed1:521.91:362.77:580.78:480.27:117:46Waxing Gibbous6Wed
7Thu2:222.12:212.88:400.69:260.17:127:45Full Moon7Thu
8Fri2:522.32:592.99:210.410:020.27:127:43Full Moon8Fri
9Sat3:222.53:363.010:010.310:360.27:137:42Full Moon9Sat
10Sun3:542.74:143.010:390.211:070.37:137:41Full Moon10Sun
11Mon4:282.84:522.911:160.211:360.47:147:40Waning Gibbous11Mon
12Tue5:042.85:332.711:510.17:147:39Waning Gibbous12Tue
13Wed5:412.86:162.612:020.512:250.27:157:37Waning Gibbous13Wed
14Thu6:222.87:042.412:240.71:030.37:157:36Waning Gibbous14Thu
15Fri7:082.87:592.212:440.81:530.47:167:35Third Quarter15Fri
16Sat8:002.78:592.01:071.03:160.57:167:34Third Quarter16Sat
17Sun8:592.710:011.91:421.14:470.47:177:33Third Quarter17Sun
18Mon10:002.711:071.94:201.25:580.37:177:31Third Quarter18Mon
19Tue11:062.85:481.16:550.17:187:30Waning Crescent19Tue
20Wed12:182.012:162.96:490.87:440.07:187:29Waning Crescent20Wed
21Thu1:202.31:233.07:420.68:29-0.17:197:28Waning Crescent21Thu
22Fri2:072.52:193.28:310.39:12-0.17:197:26New Moon22Fri
23Sat2:472.83:083.29:210.09:540.07:207:25New Moon23Sat
24Sun3:263.03:553.210:11-0.210:360.17:207:24New Moon24Sun
25Mon4:053.24:403.011:01-0.311:150.37:217:23Waxing Crescent25Mon
26Tue4:453.35:262.811:48-0.411:520.57:217:22Waxing Crescent26Tue
27Wed5:263.36:142.512:35-0.37:227:20Waxing Crescent27Wed
28Thu6:103.27:042.212:280.71:25-0.17:227:19First Quarter28Thu
29Fri6:593.07:592.01:040.92:260.27:237:18First Quarter29Fri
30Sat7:532.88:581.91:491.13:410.47:237:17First Quarter30Sat
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 3:51 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 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