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

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently falling in Rock Harbor, Key Largo, FL.
Next low tide : in 3h 45m at 5:13 am (-0.1 ft)
Next high tide : 11:29 am (2.4 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:31 am
Moon phase : Waxing Crescent (9% illuminated)
Tide Station Location : Station #8723689
Common Questions About Tides

Rock Harbor, Key Largo, FL Tides - Oct 2026

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:282.71:192.86:360.37:101.07:137:08Waning Gibbous1Thu
2Fri1:232.62:192.77:370.48:141.17:147:07Third Quarter2Fri
3Sat2:272.53:252.68:450.69:271.17:147:06Third Quarter3Sat
4Sun3:382.54:342.69:590.610:391.07:157:05Third Quarter4Sun
5Mon4:522.65:392.711:090.611:440.97:157:04Waning Crescent5Mon
6Tue6:012.76:362.812:110.67:167:03Waning Crescent6Tue
7Wed7:012.87:272.812:400.71:060.57:167:02Waning Crescent7Wed
8Thu7:542.98:132.91:300.51:560.57:167:01Waning Crescent8Thu
9Fri8:423.08:552.92:160.32:420.57:177:00New Moon9Fri
10Sat9:263.19:352.92:590.23:240.67:176:59New Moon10Sat
11Sun10:073.010:132.83:390.24:050.67:186:58New Moon11Sun
12Mon10:463.010:502.74:190.34:450.87:186:57Waxing Crescent12Mon
13Tue11:252.811:282.64:580.45:240.97:196:56Waxing Crescent13Tue
14Wed12:052.75:370.66:041.17:196:55Waxing Crescent14Wed
15Thu12:062.512:462.66:180.76:461.27:206:54Waxing Crescent15Thu
16Fri12:472.41:312.57:030.97:341.47:206:53First Quarter16Fri
17Sat1:332.32:222.47:541.18:321.57:216:53First Quarter17Sat
18Sun2:282.23:182.38:531.29:361.57:216:52First Quarter18Sun
19Mon3:302.24:162.39:571.210:381.47:226:51First Quarter19Mon
20Tue4:352.35:122.410:571.211:311.27:226:50First Quarter20Tue
21Wed5:362.46:032.511:511.17:236:49Waxing Gibbous21Wed
22Thu6:312.56:512.612:171.012:390.97:236:48Waxing Gibbous22Thu
23Fri7:222.77:352.71:000.71:240.87:246:47Waxing Gibbous23Fri
24Sat8:092.98:182.81:410.52:080.77:246:47Full Moon24Sat
25Sun8:553.09:022.82:220.22:510.67:256:46Full Moon25Sun
26Mon9:413.19:462.93:050.13:350.67:256:45Full Moon26Mon
27Tue10:293.110:332.93:500.04:210.67:266:44Full Moon27Tue
28Wed11:183.111:222.84:370.05:090.77:276:44Waning Gibbous28Wed
29Thu12:103.05:280.16:020.87:276:43Waning Gibbous29Thu
30Fri12:162.71:062.96:240.27:000.97:286:42Waning Gibbous30Fri
31Sat1:152.72:052.87:260.48:070.97:286:41Third Quarter31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723689)

Common Questions About Rock Harbor, Key Largo, FL Tides

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What time does the tide turn (slack tide) in Rock Harbor, Key Largo, FL today?

Slack tide in Rock Harbor, Key Largo, FL is approximately 8:21 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 Rock Harbor, Key Largo, FL?

Rock Harbor, Key Largo, FL is currently in a spring phase. Tonight's moon is 9% 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 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 Waxing Crescent (9% illuminated). This places Rock Harbor, Key Largo, 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