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 5h 35m at 8:57 pm (0.2 ft)
Next high tide (tomorrow) : 1:57 am (1.5 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 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:171.510:401.55:16-0.15:35-0.26:446:23Waxing Crescent1Fri
2Sat10:501.511:171.55:54-0.16:11-0.26:436:24Waxing Crescent2Sat
3Sun11:231.411:541.46:310.06:47-0.16:426:24Waxing Crescent3Sun
4Mon11:571.37:090.17:250.06:416:25Waxing Crescent4Mon
5Tue12:341.312:351.27:480.28:070.16:406:25First Quarter5Tue
6Wed1:201.21:181.28:340.38:570.16:396:26First Quarter6Wed
7Thu2:131.22:101.19:300.49:570.26:386:26First Quarter7Thu
8Fri3:161.23:151.110:360.411:030.16:376:27First Quarter8Fri
9Sat4:241.24:261.111:420.46:366:27Waxing Gibbous9Sat
10Sun5:271.35:331.212:050.112:410.36:356:28Waxing Gibbous10Sun
11Mon6:211.46:301.41:000.01:310.26:346:28Waxing Gibbous11Mon
12Tue7:091.57:221.51:50-0.12:170.06:336:29Waxing Gibbous12Tue
13Wed7:521.68:111.62:37-0.23:01-0.16:326:29Full Moon13Wed
14Thu8:351.78:581.73:22-0.23:44-0.36:316:30Full Moon14Thu
15Fri9:161.79:441.84:07-0.24:27-0.46:306:30Full Moon15Fri
16Sat9:591.710:321.84:53-0.25:12-0.46:296:31Waning Gibbous16Sat
17Sun10:431.711:211.85:40-0.25:59-0.46:286:31Waning Gibbous17Sun
18Mon11:291.66:29-0.16:50-0.36:276:32Waning Gibbous18Mon
19Tue12:131.712:201.57:220.07:46-0.36:266:32Waning Gibbous19Tue
20Wed1:111.61:181.58:210.18:50-0.16:256:32Third Quarter20Wed
21Thu2:151.52:241.49:290.210:00-0.16:246:33Third Quarter21Thu
22Fri3:251.43:381.310:410.211:120.06:236:33Third Quarter22Fri
23Sat4:361.44:511.411:510.26:226:34Waning Crescent23Sat
24Sun5:401.55:561.412:180.012:520.16:216:34Waning Crescent24Sun
25Mon6:341.56:511.51:170.01:450.16:206:35Waning Crescent25Mon
26Tue7:191.67:391.62:07-0.12:310.06:186:35Waning Crescent26Tue
27Wed7:591.68:211.62:52-0.13:12-0.16:176:36New Moon27Wed
28Thu8:361.68:591.73:34-0.13:50-0.16:166:36New Moon28Thu
29Fri9:101.69:351.74:120.04:26-0.16:156:36New Moon29Fri
30Sat9:431.510:111.64:480.05:01-0.16:146:37New Moon30Sat
31Sun10:151.510:461.65:230.15:35-0.16:136:37Waxing Crescent31Sun
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 11:27 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 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