25.0817’ N, 80.4467’ W

Rock Harbor, Key Largo, FL

87°
H -°
L 81°
SW
5mph
Low tide
10:46 pm

Tides Today & Tomorrow in Rock Harbor, Key Largo, FL

TIDE TIMES for Saturday, September 5, 2026
The tide is currently falling in Rock Harbor, Key Largo, FL.
Next low tide : in 5h 51m at 10:46 pm (1.0 ft)
Next high tide (tomorrow) : 4:55 am (2.4 ft)
Sunset today : 7:36 pm
Sunrise tomorrow : 7:04 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #8723689
Common Questions About Tides

Rock Harbor, Key Largo, FL Tides - Jan 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:572.55:32-0.46:05-0.37:065:43Waxing Crescent1Tue
2Wed12:232.412:472.46:28-0.27:02-0.37:075:44First Quarter2Wed
3Thu1:212.31:382.27:270.08:00-0.27:075:44First Quarter3Thu
4Fri2:212.22:322.18:280.28:58-0.27:075:45First Quarter4Fri
5Sat3:232.13:292.09:290.49:56-0.17:075:46First Quarter5Sat
6Sun4:252.04:271.910:280.510:51-0.17:085:46Waxing Gibbous6Sun
7Mon5:252.05:241.911:230.511:43-0.17:085:47Waxing Gibbous7Mon
8Tue6:182.06:161.912:140.57:085:48Waxing Gibbous8Tue
9Wed7:062.07:031.912:31-0.11:000.47:085:48Waxing Gibbous9Wed
10Thu7:492.17:471.91:16-0.21:440.37:085:49Full Moon10Thu
11Fri8:282.18:281.91:57-0.22:240.37:085:50Full Moon11Fri
12Sat9:052.19:072.02:36-0.23:030.27:085:51Full Moon12Sat
13Sun9:412.19:462.03:13-0.23:400.27:085:51Full Moon13Sun
14Mon10:162.110:251.93:49-0.24:150.17:085:52Waning Gibbous14Mon
15Tue10:512.111:051.94:24-0.14:500.17:085:53Waning Gibbous15Tue
16Wed11:252.011:461.94:590.05:250.17:085:54Waning Gibbous16Wed
17Thu12:011.95:370.16:040.07:085:54Waning Gibbous17Thu
18Fri12:291.912:381.96:200.26:480.07:085:55Third Quarter18Fri
19Sat1:181.81:211.87:110.37:39-0.17:085:56Third Quarter19Sat
20Sun2:141.82:121.88:090.48:39-0.17:085:57Third Quarter20Sun
21Mon3:171.93:141.89:150.49:44-0.27:085:57Third Quarter21Mon
22Tue4:261.94:231.810:220.410:49-0.47:085:58Waning Crescent22Tue
23Wed5:332.05:331.911:260.211:51-0.67:075:59Waning Crescent23Wed
24Thu6:342.26:382.112:260.07:076:00Waning Crescent24Thu
25Fri7:302.37:372.312:50-0.81:22-0.27:076:00New Moon25Fri
26Sat8:222.58:332.41:45-0.92:15-0.47:076:01New Moon26Sat
27Sun9:102.59:262.52:38-1.03:07-0.67:066:02New Moon27Sun
28Mon9:572.610:172.53:29-0.93:58-0.77:066:03Waxing Crescent28Mon
29Tue10:432.511:082.44:20-0.84:48-0.77:066:03Waxing Crescent29Tue
30Wed11:282.411:592.35:11-0.65:38-0.77:056:04Waxing Crescent30Wed
31Thu12:142.26:02-0.36:30-0.67:056:05Waxing Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723689)

Common Questions About Rock Harbor, Key Largo, FL Tides

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Is this week a spring tide or neap tide in Rock Harbor, Key Largo, FL?

Rock Harbor, Key Largo, FL is currently in a transitional phase. Tonight's moon is 35% 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 Rock Harbor, Key Largo, 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 Rock Harbor, Key Largo, FL?

Tide predictions for Rock Harbor, Key Largo, 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 Rock Harbor, Key Largo, FL?

Tide data for Rock Harbor, Key Largo, FL is sourced from NOAA Station #8723689. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8723689.

What is the moon phase in Rock Harbor, Key Largo, FL tonight?

Tonight the moon over Rock Harbor, Key Largo, FL is Third Quarter (35% illuminated). This places Rock Harbor, Key Largo, 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