25.0817’ N, 80.4467’ W

Rock Harbor, Key Largo, FL

84°
H 89°
L 83°
S
4mph
Low tide
7:50 am

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

TIDE TIMES for Thursday, September 3, 2026
The tide is currently falling in Rock Harbor, Key Largo, FL.
Next low tide : in 55m at 7:50 am (0.2 ft)
Next high tide : 2:31 pm (2.5 ft)
Sunset today : 7:38 pm
Sunrise tomorrow : 7:03 am
Moon phase : Third Quarter (58% illuminated)
Tide Station Location : Station #8723689
Common Questions About Tides

Rock Harbor, Key Largo, FL Tides - Jan 2078

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:022.311:132.14:34-0.35:050.17:065:44Waning Gibbous1Sat
2Sun11:432.211:582.05:21-0.15:520.27:075:44Waning Gibbous2Sun
3Mon12:242.16:080.16:400.27:075:45Waning Gibbous3Mon
4Tue12:451.91:051.96:560.37:290.37:075:46Third Quarter4Tue
5Wed1:341.81:481.87:480.58:200.37:075:46Third Quarter5Wed
6Thu2:271.82:341.88:420.69:100.37:085:47Third Quarter6Thu
7Fri3:221.83:251.79:370.610:010.27:085:48Third Quarter7Fri
8Sat4:191.84:191.710:310.610:500.17:085:48Waning Crescent8Sat
9Sun5:151.95:141.711:210.611:370.07:085:49Waning Crescent9Sun
10Mon6:081.96:071.812:090.57:085:50Waning Crescent10Mon
11Tue6:582.06:571.912:22-0.212:540.47:085:51Waning Crescent11Tue
12Wed7:452.27:452.01:07-0.31:380.27:085:51New Moon12Wed
13Thu8:302.28:322.11:51-0.42:210.17:085:52New Moon13Thu
14Fri9:142.39:192.12:35-0.63:050.07:085:53New Moon14Fri
15Sat9:582.410:062.23:19-0.63:49-0.17:085:54New Moon15Sat
16Sun10:412.410:562.24:06-0.64:36-0.27:085:54Waxing Crescent16Sun
17Mon11:262.311:472.24:54-0.55:25-0.37:085:55Waxing Crescent17Mon
18Tue12:122.25:45-0.46:17-0.47:085:56Waxing Crescent18Tue
19Wed12:422.21:012.26:41-0.27:13-0.47:085:57First Quarter19Wed
20Thu1:412.11:542.17:410.08:13-0.47:075:57First Quarter20Thu
21Fri2:442.12:532.08:460.19:16-0.47:075:58First Quarter21Fri
22Sat3:512.03:571.99:520.210:19-0.47:075:59Waxing Gibbous22Sat
23Sun4:582.15:031.910:550.211:20-0.57:076:00Waxing Gibbous23Sun
24Mon6:012.16:052.011:550.17:066:00Waxing Gibbous24Mon
25Tue6:582.27:022.012:17-0.512:500.17:066:01Waxing Gibbous25Tue
26Wed7:492.27:542.11:11-0.61:410.07:066:02Full Moon26Wed
27Thu8:352.28:412.12:00-0.62:29-0.17:056:03Full Moon27Thu
28Fri9:172.29:252.12:46-0.63:14-0.17:056:03Full Moon28Fri
29Sat9:562.210:072.13:30-0.53:56-0.27:056:04Full Moon29Sat
30Sun10:332.210:472.04:11-0.44:37-0.27:046:05Waning Gibbous30Sun
31Mon11:082.111:272.04:52-0.25:17-0.17:046:05Waning Gibbous31Mon
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 neap phase. Tonight's moon is 58% 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 minimum.

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 (58% illuminated). This places Rock Harbor, Key Largo, FL in a neap tide cycle, so tidal ranges are near their weekly minimum 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