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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Rock Harbor, Key Largo, FL.
Next low tide : in 40m at 8:27 pm (0.0 ft)
Next high tide (tomorrow) : 2:40 am (2.2 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:32 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8723689
Common Questions About Tides

Rock Harbor, Key Largo, FL Tides - May 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:272.65:13-0.25:33-0.66:457:52Waxing Crescent1Sun
2Mon12:042.712:162.46:04-0.16:24-0.46:447:52Waxing Crescent2Mon
3Tue12:532.51:072.36:560.17:18-0.16:447:53Waxing Crescent3Tue
4Wed1:432.31:592.17:520.38:140.16:437:53First Quarter4Wed
5Thu2:342.22:542.08:500.49:130.36:427:54First Quarter5Thu
6Fri3:282.13:531.99:490.410:130.46:427:54First Quarter6Fri
7Sat4:222.04:521.910:460.411:100.56:417:55First Quarter7Sat
8Sun5:162.05:502.011:380.46:407:55Waxing Gibbous8Sun
9Mon6:072.06:412.012:020.512:260.36:407:56Waxing Gibbous9Mon
10Tue6:542.07:282.112:500.41:090.26:397:56Waxing Gibbous10Tue
11Wed7:382.18:122.21:330.41:490.16:397:57Waxing Gibbous11Wed
12Thu8:202.18:542.32:140.32:280.06:387:57Full Moon12Thu
13Fri9:012.29:352.42:530.33:05-0.16:377:58Full Moon13Fri
14Sat9:412.210:152.43:300.23:41-0.26:377:58Full Moon14Sat
15Sun10:222.210:562.44:080.24:19-0.26:367:59Full Moon15Sun
16Mon11:032.211:382.44:460.24:58-0.26:367:59Waning Gibbous16Mon
17Tue11:452.25:270.25:40-0.26:368:00Waning Gibbous17Tue
18Wed12:222.412:312.16:110.26:27-0.16:358:00Waning Gibbous18Wed
19Thu1:082.31:212.17:000.27:190.06:358:01Waning Gibbous19Thu
20Fri1:572.32:172.17:560.28:190.06:348:01Third Quarter20Fri
21Sat2:502.23:192.18:570.19:240.16:348:02Third Quarter21Sat
22Sun3:482.24:252.210:000.010:300.16:348:03Third Quarter22Sun
23Mon4:492.25:312.311:03-0.211:330.16:338:03Waning Crescent23Mon
24Tue5:492.36:342.412:02-0.36:338:04Waning Crescent24Tue
25Wed6:492.47:332.512:330.012:58-0.56:338:04Waning Crescent25Wed
26Thu7:452.48:272.61:29-0.11:51-0.76:328:04Waning Crescent26Thu
27Fri8:382.59:192.72:22-0.22:43-0.76:328:05New Moon27Fri
28Sat9:292.510:082.73:13-0.23:33-0.76:328:05New Moon28Sat
29Sun10:192.510:562.64:03-0.24:22-0.76:328:06New Moon29Sun
30Mon11:072.411:422.54:53-0.15:11-0.56:318:06Waxing Crescent30Mon
31Tue11:542.35:420.06:00-0.36:318:07Waxing Crescent31Tue
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 11:33 pm — 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 transitional phase. Tonight's moon is 37% 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 (37% 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