25.0817’ N, 80.4467’ W

Rock Harbor, Key Largo, FL

77°
H 83°
L 73°
NNE
14mph
Low tide
10:57 am

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

TIDE TIMES for Tuesday, October 20, 2026
The tide is currently falling in Rock Harbor, Key Largo, FL.
Next low tide : in 5h 03m at 10:57 am (1.2 ft)
Next high tide : 5:12 pm (2.4 ft)
Sunset today : 6:50 pm
Sunrise tomorrow : 7:22 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #8723689
Common Questions About Tides

Rock Harbor, Key Largo, FL Tides - Mar 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:062.26:232.212:03-0.26:436:24Waxing Gibbous1Sat
2Sun7:022.47:202.412:29-0.612:58-0.46:426:24Waxing Gibbous2Sun
3Mon7:522.58:112.51:22-0.71:49-0.56:416:25Full Moon3Mon
4Tue8:382.58:592.52:12-0.72:37-0.66:406:25Full Moon4Tue
5Wed9:222.59:452.53:00-0.73:22-0.76:396:26Full Moon5Wed
6Thu10:042.410:282.43:45-0.64:07-0.66:386:26Waning Gibbous6Thu
7Fri10:442.311:112.34:29-0.44:50-0.56:376:27Waning Gibbous7Fri
8Sat11:232.211:532.25:13-0.25:34-0.36:376:27Waning Gibbous8Sat
9Sun1:032.16:570.07:18-0.27:367:28Waning Gibbous9Sun
10Mon1:362.01:451.97:430.28:060.07:357:28Third Quarter10Mon
11Tue2:221.92:301.88:340.48:590.27:347:29Third Quarter11Tue
12Wed3:141.83:231.79:300.69:570.37:337:29Third Quarter12Wed
13Thu4:121.74:231.710:300.610:560.37:327:30Third Quarter13Thu
14Fri5:131.75:271.711:290.611:520.37:317:30Waning Crescent14Fri
15Sat6:121.86:271.812:230.57:297:30Waning Crescent15Sat
16Sun7:051.97:201.912:430.21:100.37:287:31Waning Crescent16Sun
17Mon7:522.18:092.11:290.01:530.17:277:31Waning Crescent17Mon
18Tue8:352.28:542.22:12-0.12:34-0.17:267:32New Moon18Tue
19Wed9:162.39:382.32:53-0.23:13-0.37:257:32New Moon19Wed
20Thu9:572.410:212.43:34-0.33:52-0.47:247:33New Moon20Thu
21Fri10:382.411:052.54:15-0.34:33-0.57:237:33New Moon21Fri
22Sat11:192.411:512.54:57-0.35:16-0.67:227:34Waxing Crescent22Sat
23Sun12:032.35:42-0.26:03-0.57:217:34Waxing Crescent23Sun
24Mon12:392.412:512.36:31-0.16:54-0.57:207:34Waxing Crescent24Mon
25Tue1:312.41:432.27:260.07:52-0.37:197:35First Quarter25Tue
26Wed2:292.32:432.18:270.28:57-0.27:187:35First Quarter26Wed
27Thu3:322.23:502.19:350.210:06-0.17:177:36First Quarter27Thu
28Fri4:392.25:012.110:440.211:14-0.17:167:36First Quarter28Fri
29Sat5:462.26:092.211:490.17:157:37Waxing Gibbous29Sat
30Sun6:472.37:112.312:17-0.212:48-0.17:147:37Waxing Gibbous30Sun
31Mon7:412.48:062.41:14-0.31:41-0.27:137:38Waxing 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 transitional phase. Tonight's moon is 69% 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 First Quarter (69% 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