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 2h 23m 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 - Aug 1920

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:052.112:592.57:241.18:100.46:538:16Full Moon1Sun
2Mon2:262.11:402.48:061.08:410.56:548:15Waning Gibbous2Mon
3Tue2:452.22:282.38:511.09:090.76:548:14Waning Gibbous3Tue
4Wed3:092.23:212.19:370.99:330.96:558:14Waning Gibbous4Wed
5Thu3:392.34:191.910:310.89:581.16:558:13Waning Gibbous5Thu
6Fri4:142.45:461.711:460.710:281.36:568:12Third Quarter6Fri
7Sat5:002.58:041.71:070.56:568:12Third Quarter7Sat
8Sun6:022.59:381.72:140.36:578:11Third Quarter8Sun
9Mon7:152.610:441.91:231.63:160.16:578:10Waning Crescent9Mon
10Tue8:272.711:252.02:351.54:160.06:588:09Waning Crescent10Tue
11Wed9:432.811:592.13:441.45:08-0.16:588:08Waning Crescent11Wed
12Thu10:502.94:471.35:55-0.16:598:08New Moon12Thu
13Fri12:322.211:43 AM3.05:411.16:370.06:598:07New Moon13Fri
14Sat1:052.312:322.96:310.97:190.27:008:06New Moon14Sat
15Sun1:392.41:232.77:220.87:590.47:008:05New Moon15Sun
16Mon2:132.42:192.58:140.78:390.77:018:04Waxing Crescent16Mon
17Tue2:462.43:162.39:050.79:150.97:018:03Waxing Crescent17Tue
18Wed3:172.44:122.19:550.79:491.17:028:02Waxing Crescent18Wed
19Thu3:472.45:231.910:490.710:211.47:028:01First Quarter19Thu
20Fri4:192.47:031.711:580.810:591.57:028:01First Quarter20Fri
21Sat5:012.38:271.71:130.77:038:00First Quarter21Sat
22Sun6:092.39:561.812:311.62:150.77:037:59First Quarter22Sun
23Mon7:332.310:481.91:431.63:110.67:047:58Waxing Gibbous23Mon
24Tue8:412.411:162.02:391.64:030.67:047:57Waxing Gibbous24Tue
25Wed9:442.511:412.03:341.54:480.57:057:56Waxing Gibbous25Wed
26Thu10:342.64:261.45:260.57:057:55Waxing Gibbous26Thu
27Fri12:052.111:13 AM2.75:101.36:000.57:067:54Full Moon27Fri
28Sat12:262.211:47 AM2.75:491.26:320.57:067:53Full Moon28Sat
29Sun12:452.312:212.76:261.07:040.67:077:52Full Moon29Sun
30Mon1:012.412:572.67:040.97:350.87:077:51Full Moon30Mon
31Tue1:202.41:402.57:460.88:050.97:077:50Waning Gibbous31Tue
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