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

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently rising in Key Largo, South Sound, FL.
Next low tide (tomorrow) : 4:37 am (0.2 ft)
Next high tide : in 5h 17m at 9:28 pm (1.6 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 6:47 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8723667
Common Questions About Tides

Key Largo, South Sound, FL Tides - May 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:311.611:031.75:310.15:41-0.16:457:52Full Moon1Thu
2Fri11:091.511:431.76:070.16:17-0.16:447:52Waning Gibbous2Fri
3Sat11:481.56:440.16:56-0.16:437:53Waning Gibbous3Sat
4Sun12:251.612:301.57:250.27:390.06:437:53Waning Gibbous4Sun
5Mon1:101.61:171.48:120.28:300.06:427:54Waning Gibbous5Mon
6Tue2:001.52:111.49:070.29:290.06:417:54Third Quarter6Tue
7Wed2:551.53:141.410:090.210:340.16:417:55Third Quarter7Wed
8Thu3:541.54:211.511:140.111:420.16:407:55Third Quarter8Thu
9Fri4:571.65:301.612:180.06:407:56Waning Crescent9Fri
10Sat5:581.66:341.712:470.01:18-0.16:397:56Waning Crescent10Sat
11Sun6:561.77:331.81:480.02:14-0.26:387:57Waning Crescent11Sun
12Mon7:501.88:281.92:44-0.13:07-0.36:387:57Waning Crescent12Mon
13Tue8:421.89:202.03:37-0.13:58-0.46:377:58New Moon13Tue
14Wed9:331.810:102.04:28-0.24:48-0.46:377:58New Moon14Wed
15Thu10:221.810:591.95:19-0.15:37-0.46:367:59New Moon15Thu
16Fri11:101.811:471.96:08-0.16:27-0.36:367:59Waxing Crescent16Fri
17Sat11:581.76:590.07:17-0.26:358:00Waxing Crescent17Sat
18Sun12:351.812:471.67:500.08:09-0.16:358:00Waxing Crescent18Sun
19Mon1:241.61:381.58:440.19:040.06:348:01Waxing Crescent19Mon
20Tue2:131.52:311.49:400.210:010.16:348:01First Quarter20Tue
21Wed3:041.53:271.310:380.210:590.26:348:02First Quarter21Wed
22Thu3:561.44:251.311:340.211:560.26:338:02First Quarter22Thu
23Fri4:491.45:231.312:270.26:338:03First Quarter23Fri
24Sat5:411.46:171.412:500.31:160.26:338:03Waxing Gibbous24Sat
25Sun6:291.47:061.41:390.22:000.16:328:04Waxing Gibbous25Sun
26Mon7:151.47:521.52:240.22:410.06:328:04Waxing Gibbous26Mon
27Tue7:591.58:351.63:060.23:200.06:328:05Waxing Gibbous27Tue
28Wed8:421.59:181.63:470.13:58-0.16:328:05Full Moon28Wed
29Thu9:231.59:591.74:250.14:36-0.16:318:06Full Moon29Thu
30Fri10:051.510:411.75:040.15:14-0.16:318:06Full Moon30Fri
31Sat10:471.511:241.75:430.15:55-0.26:318:07Full Moon31Sat
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 1:02 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 spring phase. Tonight's moon is 99% 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 Full Moon (99% 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