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

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently rising in Key Largo, South Sound, FL.
Next low tide : 4:31 pm (-0.2 ft)
Next high tide : in 5h 01m at 9:15 am (1.9 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:54 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - Oct 1957

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:311.74:151.711:070.411:420.67:137:08First Quarter1Tue
2Wed4:341.75:151.712:080.57:147:07First Quarter2Wed
3Thu5:351.76:091.712:400.61:040.57:147:06Waxing Gibbous3Thu
4Fri6:301.76:561.81:320.51:530.57:147:05Waxing Gibbous4Fri
5Sat7:181.87:371.82:170.52:380.47:157:04Waxing Gibbous5Sat
6Sun8:011.98:161.92:570.43:180.47:157:03Waxing Gibbous6Sun
7Mon8:401.98:531.93:350.33:550.47:167:02Full Moon7Mon
8Tue9:192.09:301.94:100.34:310.47:167:01Full Moon8Tue
9Wed9:572.010:061.94:440.35:060.47:177:00Full Moon9Wed
10Thu10:362.010:431.95:180.35:410.47:176:59Full Moon10Thu
11Fri11:152.011:211.95:520.36:160.57:186:58Waning Gibbous11Fri
12Sat11:561.96:290.36:550.57:186:57Waning Gibbous12Sat
13Sun12:011.812:401.97:100.37:380.57:186:56Waning Gibbous13Sun
14Mon12:451.81:291.97:570.38:300.67:196:55Waning Gibbous14Mon
15Tue1:371.72:231.88:530.49:300.67:196:55Third Quarter15Tue
16Wed2:371.73:231.89:580.410:380.57:206:54Third Quarter16Wed
17Thu3:441.84:261.911:070.411:450.57:206:53Third Quarter17Thu
18Fri4:531.95:271.912:150.47:216:52Waning Crescent18Fri
19Sat5:592.06:262.012:470.31:160.37:216:51Waning Crescent19Sat
20Sun7:002.17:202.11:440.22:130.27:226:50Waning Crescent20Sun
21Mon7:562.28:122.22:370.03:060.27:226:49New Moon21Mon
22Tue8:482.39:022.23:28-0.13:570.17:236:48New Moon22Tue
23Wed9:382.39:502.24:17-0.14:470.17:246:48New Moon23Wed
24Thu10:272.310:392.25:06-0.15:360.27:246:47New Moon24Thu
25Fri11:162.211:272.15:55-0.16:250.27:256:46Waxing Crescent25Fri
26Sat12:042.16:450.07:150.37:256:45Waxing Crescent26Sat
27Sun12:162.011:54 AM2.06:360.27:090.46:265:44Waxing Crescent27Sun
28Mon12:061.912:441.97:300.38:050.56:265:44First Quarter28Mon
29Tue12:591.81:371.88:280.49:060.66:275:43First Quarter29Tue
30Wed1:561.72:321.79:290.510:060.66:285:42First Quarter30Wed
31Thu2:561.63:271.710:300.611:030.66:285:42First Quarter31Thu
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 12:53 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 spring phase. Tonight's moon is 0% 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 near their weekly maximum.

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 New Moon (0% illuminated). This places Key Largo, South Sound, FL in a spring tide cycle, so tidal ranges are near their weekly maximum 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