Tides Today & Tomorrow in Captiva Island (outside), FL

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Captiva Island (outside), FL.
Next low tide : 2:39 pm (0.6 ft)
Next high tide : in 3h 08m at 5:50 am (2.3 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 7:03 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8725383
Common Questions About Tides

Captiva Island (outside), FL Tides - Sep 1920

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:442.52:312.48:310.78:331.17:087:48Waning Gibbous1Wed
2Thu2:162.63:272.29:180.69:001.37:087:47Waning Gibbous2Thu
3Fri2:532.64:292.010:110.69:271.57:097:46Waning Gibbous3Fri
4Sat3:362.76:211.911:190.610:001.67:097:45Third Quarter4Sat
5Sun4:262.78:061.912:440.57:107:44Third Quarter5Sun
6Mon5:342.69:201.91:550.47:107:43Third Quarter6Mon
7Tue7:072.610:162.11:301.72:560.47:107:42Waning Crescent7Tue
8Wed8:342.710:542.22:401.63:550.47:117:41Waning Crescent8Wed
9Thu9:552.811:272.43:451.44:470.47:117:40Waning Crescent9Thu
10Fri10:592.911:562.54:441.15:310.47:127:39Waning Crescent10Fri
11Sat11:502.95:350.96:110.67:127:38New Moon11Sat
12Sun12:232.612:362.86:210.76:490.77:127:36New Moon12Sun
13Mon12:502.61:242.77:060.67:260.97:137:35New Moon13Mon
14Tue1:162.72:162.57:520.58:031.17:137:34Waxing Crescent14Tue
15Wed1:432.73:092.38:380.58:381.37:147:33Waxing Crescent15Wed
16Thu2:132.64:012.29:240.69:111.57:147:32Waxing Crescent16Thu
17Fri2:462.65:022.010:110.79:401.67:157:31Waxing Crescent17Fri
18Sat3:222.56:341.911:070.810:051.77:157:30First Quarter18Sat
19Sun4:032.47:571.912:230.97:157:29First Quarter19Sun
20Mon4:582.39:031.91:330.97:167:27First Quarter20Mon
21Tue6:392.39:552.01:221.82:290.87:167:26First Quarter21Tue
22Wed8:112.310:292.12:211.73:200.87:177:25Waxing Gibbous22Wed
23Thu9:212.410:552.23:141.54:060.87:177:24Waxing Gibbous23Thu
24Fri10:192.511:172.34:051.34:470.87:187:23Waxing Gibbous24Fri
25Sat11:042.611:352.44:501.15:230.87:187:22Waxing Gibbous25Sat
26Sun11:422.711:512.55:290.95:560.97:187:21Full Moon26Sun
27Mon12:192.76:070.76:271.07:197:20Full Moon27Mon
28Tue12:082.612:592.66:460.56:581.17:197:18Full Moon28Tue
29Wed12:312.71:462.57:280.47:281.37:207:17Full Moon29Wed
30Thu12:592.82:422.38:140.38:001.47:207:16Waning Gibbous30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8725383)

Common Questions About Captiva Island (outside), FL Tides

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What time does the tide turn (slack tide) in Captiva Island (outside), FL today?

Slack tide in Captiva Island (outside), FL is approximately 10:14 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 Captiva Island (outside), FL?

Captiva Island (outside), 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 Captiva Island (outside), 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 Captiva Island (outside), FL?

Tide predictions for Captiva Island (outside), 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 Captiva Island (outside), FL?

Tide data for Captiva Island (outside), FL is sourced from NOAA Station #8725383. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8725383.

What is the moon phase in Captiva Island (outside), FL tonight?

Tonight the moon over Captiva Island (outside), FL is First Quarter (65% illuminated). This places Captiva Island (outside), 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