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

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide : in 3h 16m at 11:23 am (0.1 ft)
Next high tide : 4:31 pm (1.4 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:44 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Jan 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:041.57:031.41:38-0.12:090.27:065:43Waxing Gibbous1Fri
2Sat7:491.67:481.42:25-0.12:540.27:075:43Full Moon2Sat
3Sun8:311.58:311.43:09-0.13:370.27:075:44Full Moon3Sun
4Mon9:101.59:111.43:51-0.14:180.17:075:45Full Moon4Mon
5Tue9:471.59:501.44:31-0.14:580.17:075:45Full Moon5Tue
6Wed10:231.510:301.45:09-0.15:360.17:085:46Waning Gibbous6Wed
7Thu10:591.511:101.35:460.06:140.17:085:47Waning Gibbous7Thu
8Fri11:341.411:511.36:230.16:510.17:085:48Waning Gibbous8Fri
9Sat12:101.47:010.17:300.17:085:48Waning Gibbous9Sat
10Sun12:351.312:481.37:420.28:120.17:085:49Third Quarter10Sun
11Mon1:221.31:291.38:300.28:590.17:085:50Third Quarter11Mon
12Tue2:151.32:161.29:250.39:540.07:085:51Third Quarter12Tue
13Wed3:141.33:111.210:260.310:520.07:085:51Third Quarter13Wed
14Thu4:181.34:141.211:290.311:52-0.17:085:52Waning Crescent14Thu
15Fri5:221.45:191.312:290.27:085:53Waning Crescent15Fri
16Sat6:221.56:211.412:51-0.21:260.17:085:53Waning Crescent16Sat
17Sun7:181.67:201.51:47-0.32:210.07:085:54New Moon17Sun
18Mon8:101.78:151.62:41-0.43:13-0.17:085:55New Moon18Mon
19Tue8:591.89:091.73:34-0.54:05-0.27:085:56New Moon19Tue
20Wed9:471.810:021.74:26-0.54:56-0.37:085:57New Moon20Wed
21Thu10:341.810:551.75:17-0.45:47-0.37:085:57Waxing Crescent21Thu
22Fri11:211.711:481.76:09-0.46:39-0.37:075:58Waxing Crescent22Fri
23Sat12:091.77:03-0.27:32-0.37:075:59Waxing Crescent23Sat
24Sun12:431.612:581.57:58-0.18:28-0.37:076:00First Quarter24Sun
25Mon1:401.51:501.48:570.09:26-0.27:076:00First Quarter25Mon
26Tue2:411.42:471.39:590.110:27-0.17:066:01First Quarter26Tue
27Wed3:451.33:491.211:010.211:28-0.17:066:02First Quarter27Wed
28Thu4:511.34:521.212:030.27:066:02Waxing Gibbous28Thu
29Fri5:521.35:521.212:26-0.11:000.27:056:03Waxing Gibbous29Fri
30Sat6:461.36:451.21:20-0.11:510.27:056:04Waxing Gibbous30Sat
31Sun7:311.47:311.32:09-0.12:380.17:046:05Waxing Gibbous31Sun
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 1:57 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 62% 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 First Quarter (62% 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