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

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Shell Island, north end, Crystal River, FL.
Next low tide : in 5h 35m at 1:47 pm (0.2 ft)
Next high tide : 7:28 pm (2.2 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 7:01 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8727359
Common Questions About Tides

Shell Island, north end, Crystal River, FL Tides - May 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:392.71:552.98:170.38:46-0.26:488:06Waxing Gibbous1Tue
2Wed2:342.82:373.28:590.39:36-0.46:488:07Full Moon2Wed
3Thu3:222.83:173.49:420.410:27-0.66:478:07Full Moon3Thu
4Fri4:082.73:583.510:250.511:15-0.66:468:08Full Moon4Fri
5Sat4:532.64:403.511:070.66:458:09Waning Gibbous5Sat
6Sun5:392.45:243.312:01-0.511:47 AM0.76:458:09Waning Gibbous6Sun
7Mon6:252.26:113.212:47-0.412:260.86:448:10Waning Gibbous7Mon
8Tue7:152.17:022.91:36-0.11:100.96:438:11Third Quarter8Tue
9Wed8:092.07:582.72:340.12:101.16:428:11Third Quarter9Wed
10Thu9:041.98:582.53:420.43:451.16:428:12Third Quarter10Thu
11Fri9:572.09:592.34:490.55:061.06:418:12Third Quarter11Fri
12Sat10:502.011:032.25:470.56:090.86:408:13Waning Crescent12Sat
13Sun11:442.26:360.67:010.66:408:14Waning Crescent13Sun
14Mon12:132.212:372.37:190.67:460.46:398:14Waning Crescent14Mon
15Tue1:182.21:232.57:570.68:280.26:398:15Waning Crescent15Tue
16Wed2:072.32:022.78:330.79:080.06:388:16New Moon16Wed
17Thu2:472.42:382.99:080.79:48-0.16:378:16New Moon17Thu
18Fri3:242.53:143.19:430.710:28-0.26:378:17New Moon18Fri
19Sat4:022.53:503.110:180.811:07-0.26:368:17New Moon19Sat
20Sun4:422.44:293.210:510.811:45-0.26:368:18Waxing Crescent20Sun
21Mon5:242.45:103.211:230.86:368:19Waxing Crescent21Mon
22Tue6:092.35:553.112:24-0.211:55 AM0.96:358:19Waxing Crescent22Tue
23Wed6:592.26:453.01:05-0.112:301.06:358:20Waxing Crescent23Wed
24Thu7:532.27:422.81:530.01:161.06:348:20First Quarter24Thu
25Fri8:492.28:442.72:560.22:451.16:348:21First Quarter25Fri
26Sat9:432.39:482.54:080.34:330.96:348:21First Quarter26Sat
27Sun10:372.410:552.45:120.45:470.66:338:22First Quarter27Sun
28Mon11:322.66:080.56:480.36:338:23Waxing Gibbous28Mon
29Tue12:082.412:282.86:570.57:420.06:338:23Waxing Gibbous29Tue
30Wed1:212.41:213.07:430.68:32-0.36:328:24Waxing Gibbous30Wed
31Thu2:202.42:083.38:260.69:23-0.56:328:24Full Moon31Thu
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 4:37 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 36% 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 (36% 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