Tides Today & Tomorrow in Key Largo, South Sound, FL

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide : in 6h 56m at 8:31 am (0.0 ft)
Next high tide : 1:53 pm (1.6 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 6:50 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Mar 1969

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:101.37:171.31:550.02:230.16:446:23Waxing Gibbous1Sat
2Sun7:501.48:011.42:37-0.13:010.06:436:24Full Moon2Sun
3Mon8:281.58:431.53:16-0.13:38-0.16:426:24Full Moon3Mon
4Tue9:051.59:241.63:54-0.14:13-0.16:416:25Full Moon4Tue
5Wed9:411.610:051.64:32-0.24:50-0.26:406:25Full Moon5Wed
6Thu10:181.510:471.65:11-0.15:28-0.36:396:26Waning Gibbous6Thu
7Fri10:561.511:321.65:52-0.16:09-0.36:386:26Waning Gibbous7Fri
8Sat11:371.56:360.06:56-0.26:376:27Waning Gibbous8Sat
9Sun12:221.512:241.47:260.17:50-0.26:366:27Third Quarter9Sun
10Mon1:171.51:191.48:230.28:52-0.16:356:28Third Quarter10Mon
11Tue2:221.42:261.39:310.210:04-0.16:346:28Third Quarter11Tue
12Wed3:341.43:421.310:440.211:17-0.16:336:29Third Quarter12Wed
13Thu4:451.44:571.411:560.26:326:29Waning Crescent13Thu
14Fri5:501.56:041.512:25-0.112:590.16:316:30Waning Crescent14Fri
15Sat6:451.67:031.61:25-0.21:55-0.16:306:30Waning Crescent15Sat
16Sun7:341.77:541.72:19-0.22:45-0.26:296:31New Moon16Sun
17Mon8:181.78:411.83:08-0.23:31-0.36:286:31New Moon17Mon
18Tue8:591.79:251.83:54-0.24:14-0.36:276:31New Moon18Tue
19Wed9:381.710:071.74:37-0.24:55-0.36:266:32New Moon19Wed
20Thu10:161.610:471.75:19-0.15:35-0.36:256:32Waxing Crescent20Thu
21Fri10:531.511:261.66:000.06:15-0.26:246:33Waxing Crescent21Fri
22Sat11:291.46:400.16:56-0.16:236:33Waxing Crescent22Sat
23Sun12:071.512:081.37:220.27:400.06:226:34Waxing Crescent23Sun
24Mon12:501.312:501.38:070.38:300.16:216:34First Quarter24Mon
25Tue1:401.31:401.29:010.49:280.26:206:35First Quarter25Tue
26Wed2:381.22:411.110:050.410:330.26:196:35First Quarter26Wed
27Thu3:431.23:501.211:120.411:350.26:186:35First Quarter27Thu
28Fri4:461.24:571.212:110.46:176:36Waxing Gibbous28Fri
29Sat5:411.35:561.312:310.21:010.36:166:36Waxing Gibbous29Sat
30Sun6:281.46:471.41:190.11:450.26:156:37Waxing Gibbous30Sun
31Mon7:111.57:331.62:040.12:240.06:146:37Waxing Gibbous31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723667)

Common Questions About Key Largo, South Sound, FL Tides

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What time does the tide turn (slack tide) in Key Largo, South Sound, FL today?

Slack tide in Key Largo, South Sound, FL is approximately 11:12 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 Key Largo, South Sound, FL?

Key Largo, South Sound, FL is currently in a transitional phase. Tonight's moon is 66% 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 Key Largo, South Sound, 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 Key Largo, South Sound, FL?

Tide predictions for Key Largo, South Sound, 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 Key Largo, South Sound, FL?

Tide data for Key Largo, South Sound, FL is sourced from NOAA Station #8723667. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8723667.

What is the moon phase in Key Largo, South Sound, FL tonight?

Tonight the moon over Key Largo, South Sound, FL is Third Quarter (66% illuminated). This places Key Largo, South Sound, 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