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

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Captiva Island (outside), FL.
Next low tide : in 7h 30m at 2:39 pm (0.6 ft)
Next high tide (tomorrow) : 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 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:132.510:102.32:091.63:080.56:216:15Waning Crescent1Mon
2Tue9:192.610:352.43:061.53:530.66:216:14Waning Crescent2Tue
3Wed10:092.710:572.43:541.34:300.76:226:13Waning Crescent3Wed
4Thu10:492.711:172.54:331.15:030.86:226:12New Moon4Thu
5Fri11:252.711:322.55:090.95:340.96:226:11New Moon5Fri
6Sat12:012.65:440.86:051.16:236:10New Moon6Sat
7Sun12:402.56:200.76:351.26:236:09New Moon7Sun
8Mon1:242.46:570.67:031.46:246:08Waxing Crescent8Mon
9Tue12:172.52:112.27:360.67:271.56:246:07Waxing Crescent9Tue
10Wed12:422.53:002.18:150.67:441.76:256:06Waxing Crescent10Wed
11Thu1:142.54:082.08:580.68:001.86:256:05Waxing Crescent11Thu
12Fri1:522.56:171.99:540.78:231.86:266:04First Quarter12Fri
13Sat2:392.411:180.76:266:03First Quarter13Sat
14Sun3:372.48:262.012:310.76:276:02First Quarter14Sun
15Mon5:092.39:012.112:361.91:280.66:276:01First Quarter15Mon
16Tue6:482.49:262.21:341.72:200.66:286:00Waxing Gibbous16Tue
17Wed8:122.59:492.42:291.43:090.66:295:59Waxing Gibbous17Wed
18Thu9:272.710:102.53:221.13:540.66:295:58Waxing Gibbous18Thu
19Fri10:252.710:322.74:100.74:350.86:305:57Full Moon19Fri
20Sat11:162.710:572.84:560.45:120.96:305:56Full Moon20Sat
21Sun12:102.65:420.15:501.16:315:55Full Moon21Sun
22Mon1:132.56:31-0.16:281.36:315:54Full Moon22Mon
23Tue2:202.37:24-0.27:091.56:325:53Waning Gibbous23Tue
24Wed12:362.93:262.28:18-0.17:521.66:335:52Waning Gibbous24Wed
25Thu1:222.84:452.09:130.08:391.76:335:52Waning Gibbous25Thu
26Fri2:132.76:132.010:180.29:471.86:345:51Third Quarter26Fri
27Sat3:102.57:192.011:350.411:421.86:345:50Third Quarter27Sat
28Sun4:372.38:112.112:430.56:355:49Third Quarter28Sun
29Mon6:442.28:522.21:001.61:390.66:365:48Third Quarter29Mon
30Tue8:042.29:242.21:591.42:280.76:365:48Waning Crescent30Tue
31Wed9:122.39:502.32:521.23:130.86:375:47Waning Crescent31Wed
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 11:00 pm — 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