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

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently falling in Key Largo, South Sound, FL.
Next low tide : in 2h 50m at 4:31 pm (-0.2 ft)
Next high tide : 9:49 pm (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 - Dec 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:051.98:051.82:43-0.13:070.26:505:31New Moon1Sat
2Sun8:471.98:471.73:25-0.13:550.26:505:31New Moon2Sun
3Mon9:291.89:291.74:070.04:370.26:515:31New Moon3Mon
4Tue10:051.810:111.74:490.05:130.36:525:31Waxing Crescent4Tue
5Wed10:411.710:531.65:310.15:550.36:525:32Waxing Crescent5Wed
6Thu11:231.711:351.56:070.26:370.36:535:32Waxing Crescent6Thu
7Fri11:591.66:490.27:250.46:545:32Waxing Crescent7Fri
8Sat12:171.512:411.57:310.38:070.46:555:32First Quarter8Sat
9Sun1:051.41:291.58:190.49:010.46:555:32First Quarter9Sun
10Mon1:591.42:111.59:130.49:490.36:565:33First Quarter10Mon
11Tue2:531.43:051.410:130.410:430.36:565:33First Quarter11Tue
12Wed3:531.43:591.411:130.411:370.26:575:33Waxing Gibbous12Wed
13Thu4:531.54:591.512:070.46:585:33Waxing Gibbous13Thu
14Fri5:471.65:531.512:250.112:550.36:585:34Waxing Gibbous14Fri
15Sat6:411.76:471.61:190.01:490.26:595:34Waxing Gibbous15Sat
16Sun7:351.87:351.72:07-0.22:370.17:005:35Full Moon16Sun
17Mon8:231.98:291.82:55-0.23:250.07:005:35Full Moon17Mon
18Tue9:111.99:231.83:43-0.34:130.07:015:35Full Moon18Tue
19Wed9:591.910:111.84:37-0.35:07-0.17:015:36Waning Gibbous19Wed
20Thu10:471.911:051.85:25-0.36:01-0.17:025:36Waning Gibbous20Thu
21Fri11:411.96:19-0.26:55-0.17:025:37Waning Gibbous21Fri
22Sat12:051.812:291.87:19-0.17:49-0.17:035:37Waning Gibbous22Sat
23Sun12:591.71:231.78:190.08:49-0.17:035:38Third Quarter23Sun
24Mon2:051.62:231.69:190.19:55-0.17:045:38Third Quarter24Mon
25Tue3:051.63:231.510:250.110:55-0.17:045:39Third Quarter25Tue
26Wed4:111.64:231.511:250.211:55-0.17:055:39Waning Crescent26Wed
27Thu5:111.65:171.512:250.27:055:40Waning Crescent27Thu
28Fri6:111.66:171.512:49-0.11:190.27:055:41Waning Crescent28Fri
29Sat6:591.67:051.51:37-0.12:070.17:065:41Waning Crescent29Sat
30Sun7:471.67:471.52:25-0.12:490.17:065:42New Moon30Sun
31Mon8:291.68:291.53:07-0.23:370.17:065:43New Moon31Mon
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 7:10 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