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 (tomorrow) : 3:39 pm (0.5 ft)
Next high tide (tomorrow) : in 13h 20m at 7:21 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 - Jan 1919

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:311.55:32-0.65:001.07:165:47New Moon1Wed
2Thu1:071.56:10-0.65:370.97:175:48New Moon2Thu
3Fri1:401.66:48-0.66:190.97:175:48New Moon3Fri
4Sat2:091.67:27-0.57:090.87:175:49Waxing Crescent4Sat
5Sun12:402.12:341.68:03-0.38:030.77:175:50Waxing Crescent5Sun
6Mon1:351.92:591.78:38-0.19:000.57:185:50Waxing Crescent6Mon
7Tue2:351.73:301.89:120.210:090.47:185:51Waxing Crescent7Tue
8Wed3:431.44:081.99:490.511:340.27:185:52First Quarter8Wed
9Thu5:431.24:592.010:420.77:185:53First Quarter9Thu
10Fri7:391.25:592.012:47-0.112:000.97:185:53First Quarter10Fri
11Sat9:171.27:012.11:51-0.31:051.07:185:54Waxing Gibbous11Sat
12Sun10:191.38:052.22:53-0.62:081.07:185:55Waxing Gibbous12Sun
13Mon11:021.49:122.33:51-0.73:141.07:185:56Waxing Gibbous13Mon
14Tue11:391.510:082.34:40-0.84:110.97:185:56Full Moon14Tue
15Wed12:161.55:24-0.85:000.87:185:57Full Moon15Wed
16Thu12:541.66:05-0.75:460.77:185:58Full Moon16Thu
17Fri1:301.66:45-0.66:340.67:185:59Full Moon17Fri
18Sat12:172.12:031.67:24-0.47:220.57:186:00Waning Gibbous18Sat
19Sun1:021.92:301.67:59-0.28:090.57:186:00Waning Gibbous19Sun
20Mon1:501.72:531.68:320.18:560.47:176:01Waning Gibbous20Mon
21Tue2:371.53:121.69:010.39:470.47:176:02Waning Gibbous21Tue
22Wed3:271.33:351.69:270.510:560.37:176:03Third Quarter22Wed
23Thu4:571.14:081.69:490.77:176:03Third Quarter23Thu
24Fri7:031.04:571.612:110.210:13 AM0.97:176:04Third Quarter24Fri
25Sat8:471.06:001.71:120.112:201.07:166:05Third Quarter25Sat
26Sun10:041.17:001.82:09-0.11:181.07:166:06Waning Crescent26Sun
27Mon10:351.28:001.93:04-0.22:151.07:166:07Waning Crescent27Mon
28Tue11:031.39:002.03:53-0.43:130.97:156:07Waning Crescent28Tue
29Wed11:301.49:502.14:34-0.54:030.97:156:08Waning Crescent29Wed
30Thu11:571.510:322.25:11-0.64:460.77:146:09New Moon30Thu
31Fri12:231.55:47-0.65:270.67:146:10New Moon31Fri
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 11:30 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