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

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Captiva Island (outside), FL.
Next low tide : 11:08 am (0.7 ft)
Next high tide : in 48m at 3:44 am (2.4 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 7:02 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8725383
Common Questions About Tides

Captiva Island (outside), FL Tides - Nov 1925

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:522.36:090.16:061.36:375:46Full Moon1Sun
2Mon1:462.26:510.16:431.46:385:46Waning Gibbous2Mon
3Tue12:002.62:382.17:350.17:201.56:395:45Waning Gibbous3Tue
4Wed12:292.53:302.08:180.27:561.66:395:44Waning Gibbous4Wed
5Thu1:052.44:351.99:020.38:331.76:405:44Waning Gibbous5Thu
6Fri1:482.35:531.89:540.59:231.76:415:43Third Quarter6Fri
7Sat2:372.26:511.911:010.611:231.76:415:43Third Quarter7Sat
8Sun3:362.07:351.912:090.76:425:42Third Quarter8Sun
9Mon5:201.98:112.012:401.51:020.76:435:41Third Quarter9Mon
10Tue7:102.08:422.11:331.31:480.86:445:41Waning Crescent10Tue
11Wed8:272.09:072.22:211.12:330.86:445:40Waning Crescent11Wed
12Thu9:312.19:272.33:080.83:160.96:455:40Waning Crescent12Thu
13Fri10:192.29:462.43:500.53:551.06:465:39Waning Crescent13Fri
14Sat11:002.210:092.54:300.24:301.06:465:39New Moon14Sat
15Sun11:432.210:352.65:090.05:031.16:475:39New Moon15Sun
16Mon12:312.15:50-0.25:351.26:485:38New Moon16Mon
17Tue1:292.16:34-0.36:091.36:495:38New Moon17Tue
18Wed2:282.07:23-0.46:481.46:495:38Waxing Crescent18Wed
19Thu12:222.73:261.98:14-0.37:381.56:505:37Waxing Crescent19Thu
20Fri1:122.64:321.99:07-0.28:381.56:515:37Waxing Crescent20Fri
21Sat2:112.45:421.910:060.010:031.56:525:37First Quarter21Sat
22Sun3:172.26:371.911:170.211:501.36:525:36First Quarter22Sun
23Mon4:542.07:212.012:220.46:535:36First Quarter23Mon
24Tue6:551.98:012.11:031.01:170.56:545:36First Quarter24Tue
25Wed8:231.98:402.32:040.72:070.76:555:36Waxing Gibbous25Wed
26Thu9:372.09:162.43:010.42:570.86:555:36Waxing Gibbous26Thu
27Fri10:322.09:482.43:510.13:431.06:565:36Waxing Gibbous27Fri
28Sat11:192.010:152.54:34-0.14:241.06:575:36Full Moon28Sat
29Sun12:032.05:14-0.25:021.16:585:36Full Moon29Sun
30Mon12:501.95:53-0.35:371.26:585:36Full Moon30Mon
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 7:26 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 36% 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 (36% 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