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 1h 26m 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 - Jul 1920

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:501.811:59 AM2.56:251.37:29-0.16:398:25Full Moon1Thu
2Fri2:281.812:302.57:021.38:060.06:398:25Full Moon2Fri
3Sat3:011.91:052.47:431.28:410.16:398:25Waning Gibbous3Sat
4Sun3:281.91:452.38:261.29:140.26:408:25Waning Gibbous4Sun
5Mon3:491.92:332.29:111.29:430.46:408:25Waning Gibbous5Mon
6Tue4:072.03:252.09:591.110:110.66:418:25Waning Gibbous6Tue
7Wed4:312.04:231.811:001.010:420.86:418:25Third Quarter7Wed
8Thu5:042.15:441.612:230.86:418:25Third Quarter8Thu
9Fri5:492.27:551.61:340.56:428:25Third Quarter9Fri
10Sat6:432.49:401.612:391.22:330.26:428:25Third Quarter10Sat
11Sun7:402.510:541.71:451.33:330.06:438:24Waning Crescent11Sun
12Mon8:392.611:421.82:441.44:31-0.36:438:24Waning Crescent12Mon
13Tue9:432.83:501.45:24-0.46:448:24Waning Crescent13Tue
14Wed12:231.910:45 AM2.94:531.36:12-0.56:448:24New Moon14Wed
15Thu1:032.011:39 AM2.95:481.26:58-0.46:458:23New Moon15Thu
16Fri1:452.112:292.96:401.17:44-0.36:458:23New Moon16Fri
17Sat2:272.11:212.77:351.08:29-0.16:468:23Waxing Crescent17Sat
18Sun3:062.22:202.58:330.99:110.26:468:23Waxing Crescent18Sun
19Mon3:432.23:222.39:290.89:500.56:478:22Waxing Crescent19Mon
20Tue4:172.24:232.010:250.810:290.86:478:22Waxing Crescent20Tue
21Wed4:522.25:461.711:310.711:111.06:488:21First Quarter21Wed
22Thu5:332.27:261.612:470.76:488:21First Quarter22Thu
23Fri6:252.28:511.612:101.31:530.66:498:21First Quarter23Fri
24Sat7:202.210:221.61:141.42:490.56:498:20First Quarter24Sat
25Sun8:122.311:141.72:081.43:450.46:508:20Waxing Gibbous25Sun
26Mon9:062.311:461.83:001.44:350.36:508:19Waxing Gibbous26Mon
27Tue10:012.43:551.45:180.26:518:19Waxing Gibbous27Tue
28Wed12:151.910:45 AM2.54:461.45:540.16:518:18Waxing Gibbous28Wed
29Thu12:441.911:21 AM2.65:291.36:290.16:528:17Full Moon29Thu
30Fri1:132.011:52 AM2.66:071.27:030.26:528:17Full Moon30Fri
31Sat1:412.012:242.66:451.27:370.26:538:16Full Moon31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8725383)

Common Questions About Captiva Island (outside), FL Tides

Show All
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