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 10h 09m 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 - Oct 1918

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:372.611:162.44:121.34:480.97:207:16Waning Crescent1Tue
2Wed11:222.611:372.54:561.05:231.07:217:15Waning Crescent2Wed
3Thu12:002.65:340.95:541.17:217:14New Moon3Thu
4Fri12:352.56:090.76:241.27:227:12New Moon4Fri
5Sat12:062.61:112.56:440.66:521.37:227:11New Moon5Sat
6Sun12:212.61:512.47:200.57:201.47:237:10New Moon6Sun
7Mon12:402.62:362.27:580.57:431.57:237:09Waxing Crescent7Mon
8Tue1:042.63:232.18:380.58:011.67:247:08Waxing Crescent8Tue
9Wed1:342.64:142.09:210.58:181.77:247:07Waxing Crescent9Wed
10Thu2:112.65:341.910:070.68:441.87:257:06Waxing Crescent10Thu
11Fri2:582.67:221.911:070.79:231.87:257:05First Quarter11Fri
12Sat3:522.58:161.912:280.77:267:04First Quarter12Sat
13Sun5:022.48:532.01:340.77:267:03First Quarter13Sun
14Mon6:462.49:232.21:381.72:260.77:277:02First Quarter14Mon
15Tue8:222.49:492.32:381.43:160.87:277:01Waxing Gibbous15Tue
16Wed9:482.510:162.53:351.14:040.97:287:00Waxing Gibbous16Wed
17Thu10:572.610:442.74:290.74:481.07:286:59Waxing Gibbous17Thu
18Fri11:512.611:132.95:190.35:291.17:296:58Full Moon18Fri
19Sat12:432.66:060.06:071.27:296:57Full Moon19Sat
20Sun1:392.56:54-0.26:451.47:306:56Full Moon20Sun
21Mon12:203.12:422.37:45-0.37:241.57:316:56Waning Gibbous21Mon
22Tue12:583.13:432.28:38-0.28:081.67:316:55Waning Gibbous22Tue
23Wed1:422.94:442.09:31-0.18:571.77:326:54Waning Gibbous23Wed
24Thu2:342.85:572.010:270.29:521.77:326:53Waning Gibbous24Thu
25Fri3:312.67:112.011:310.411:141.77:336:52Third Quarter25Fri
26Sat4:372.48:042.012:430.67:336:51Third Quarter26Sat
27Sun5:382.27:472.112:581.612:440.86:345:50Third Quarter27Sun
28Mon7:122.28:232.21:071.41:330.96:355:50Waning Crescent28Mon
29Tue8:252.28:562.32:021.22:181.06:355:49Waning Crescent29Tue
30Wed9:282.29:232.32:520.93:011.16:365:48Waning Crescent30Wed
31Thu10:162.39:462.43:360.73:411.26:375:47Waning Crescent31Thu
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