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 22m at 12:57 am (0.6 ft)
Next high tide : 6:45 am (2.8 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 - Dec 2090

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:482.310:172.54:580.95:120.97:075:32Waxing Gibbous1Fri
2Sat10:552.211:102.65:500.75:550.97:075:32Waxing Gibbous2Sat
3Sun12:022.36:360.46:340.97:085:32Waxing Gibbous3Sun
4Mon12:002.812:552.47:180.27:100.97:095:32Waxing Gibbous4Mon
5Tue12:453.01:382.47:590.17:460.97:105:33Full Moon5Tue
6Wed1:253.22:182.58:41-0.18:220.97:105:33Full Moon6Wed
7Thu2:043.42:582.69:23-0.29:010.97:115:33Full Moon7Thu
8Fri2:443.53:392.610:05-0.29:410.97:125:33Full Moon8Fri
9Sat3:263.54:232.510:46-0.210:220.97:125:33Waning Gibbous9Sat
10Sun4:103.55:092.511:26-0.111:040.97:135:33Waning Gibbous10Sun
11Mon4:593.35:592.512:090.07:145:34Waning Gibbous11Mon
12Tue5:523.16:532.512:580.27:145:34Third Quarter12Tue
13Wed6:522.97:472.612:551.01:570.47:155:34Third Quarter13Wed
14Thu7:562.78:402.72:301.03:050.67:165:35Third Quarter14Thu
15Fri9:022.59:332.83:560.84:080.87:165:35Third Quarter15Fri
16Sat10:112.310:282.95:050.55:040.97:175:35Waning Crescent16Sat
17Sun11:292.211:263.16:030.25:550.97:175:36Waning Crescent17Sun
18Mon12:422.26:550.06:410.97:185:36Waning Crescent18Mon
19Tue12:203.31:332.37:44-0.27:250.97:195:37New Moon19Tue
20Wed1:083.42:142.48:32-0.38:100.97:195:37New Moon20Wed
21Thu1:523.52:522.49:18-0.38:550.97:205:38New Moon21Thu
22Fri2:333.63:292.410:02-0.39:400.97:205:38New Moon22Fri
23Sat3:143.54:072.410:42-0.210:230.97:215:39Waxing Crescent23Sat
24Sun3:563.44:472.411:200.011:030.97:215:39Waxing Crescent24Sun
25Mon4:403.25:292.411:570.211:430.97:215:40Waxing Crescent25Mon
26Tue5:263.06:142.412:350.47:225:40Waxing Crescent26Tue
27Wed6:162.87:022.412:291.01:190.67:225:41First Quarter27Wed
28Thu7:112.67:512.51:351.02:140.87:225:42First Quarter28Thu
29Fri8:082.48:392.53:011.03:171.07:235:42First Quarter29Fri
30Sat9:062.29:282.64:150.94:161.17:235:43First Quarter30Sat
31Sun10:082.110:232.75:160.75:091.17:235:43Waxing Gibbous31Sun
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 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