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

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Shell Island, north end, Crystal River, FL.
Next low tide : 5:27 pm (0.5 ft)
Next high tide : in 3h 36m at 9:10 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 - Dec 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:202.78:282.212:231.32:570.67:065:33First Quarter1Sun
2Mon8:232.69:192.32:571.33:590.67:075:33First Quarter2Mon
3Tue9:282.510:102.54:231.14:510.77:085:33First Quarter3Tue
4Wed10:372.511:022.75:230.75:370.77:085:33Waxing Gibbous4Wed
5Thu11:512.511:533.06:150.36:180.87:095:33Waxing Gibbous5Thu
6Fri12:552.57:040.06:570.97:105:33Waxing Gibbous6Fri
7Sat12:403.31:472.67:53-0.37:360.97:115:33Full Moon7Sat
8Sun1:243.62:342.68:44-0.58:181.07:115:33Full Moon8Sun
9Mon2:083.83:202.59:35-0.69:031.07:125:33Full Moon9Mon
10Tue2:533.94:062.410:26-0.69:501.07:135:33Waning Gibbous10Tue
11Wed3:393.84:532.311:14-0.510:381.07:135:34Waning Gibbous11Wed
12Thu4:293.65:432.212:02-0.37:145:34Waning Gibbous12Thu
13Fri5:213.46:352.112:530.07:155:34Third Quarter13Fri
14Sat6:183.17:302.212:221.11:520.37:155:34Third Quarter14Sat
15Sun7:202.88:212.21:441.22:540.67:165:35Third Quarter15Sun
16Mon8:242.59:092.43:171.13:530.77:175:35Third Quarter16Mon
17Tue9:272.39:562.54:310.94:450.97:175:36Waning Crescent17Tue
18Wed10:372.110:452.65:300.65:311.07:185:36Waning Crescent18Wed
19Thu11:562.111:352.86:200.46:121.07:185:36Waning Crescent19Thu
20Fri12:552.17:040.26:501.17:195:37Waning Crescent20Fri
21Sat12:213.01:352.27:460.17:271.17:195:37New Moon21Sat
22Sun1:033.12:092.38:280.08:031.17:205:38New Moon22Sun
23Mon1:423.22:432.39:090.08:401.17:205:38New Moon23Mon
24Tue2:203.33:192.39:50-0.19:181.17:215:39New Moon24Tue
25Wed2:593.43:572.310:290.09:541.17:215:39Waxing Crescent25Wed
26Thu3:393.44:382.311:060.010:281.17:225:40Waxing Crescent26Thu
27Fri4:223.35:222.311:420.111:021.17:225:41Waxing Crescent27Fri
28Sat5:083.26:092.312:190.27:235:41Waxing Crescent28Sat
29Sun5:583.06:582.31:000.47:235:42First Quarter29Sun
30Mon6:552.87:472.412:331.11:500.67:235:42First Quarter30Mon
31Tue7:562.68:332.62:081.12:510.87:235:43First Quarter31Tue
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 1:18 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