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

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently rising in Rock Harbor, Key Largo, FL.
Next low tide : 5:35 pm (-0.6 ft)
Next high tide : in 20m at 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 - May 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:242.612:332.46:220.16:45-0.46:457:52Waxing Crescent1Thu
2Fri1:192.41:302.27:210.37:46-0.16:447:52Waxing Crescent2Fri
3Sat2:162.32:312.18:240.48:500.16:447:53First Quarter3Sat
4Sun3:152.13:362.09:300.59:560.36:437:53First Quarter4Sun
5Mon4:162.14:422.010:340.410:590.46:427:54First Quarter5Mon
6Tue5:142.05:452.011:310.411:550.46:427:54Waxing Gibbous6Tue
7Wed6:062.06:402.112:200.26:417:55Waxing Gibbous7Wed
8Thu6:522.07:272.112:450.41:040.16:407:55Waxing Gibbous8Thu
9Fri7:342.18:092.21:300.41:450.06:407:56Waxing Gibbous9Fri
10Sat8:132.18:482.32:110.42:220.06:397:56Full Moon10Sat
11Sun8:502.19:262.32:490.42:58-0.16:397:57Full Moon11Sun
12Mon9:272.110:032.33:260.43:33-0.16:387:57Full Moon12Mon
13Tue10:042.110:412.34:010.44:08-0.16:377:58Full Moon13Tue
14Wed10:422.111:212.34:360.44:44-0.16:377:58Full Moon14Wed
15Thu11:202.05:120.55:200.06:367:59Waning Gibbous15Thu
16Fri12:012.212:002.05:500.56:000.16:367:59Waning Gibbous16Fri
17Sat12:442.112:441.96:320.66:450.16:368:00Waning Gibbous17Sat
18Sun1:292.11:341.97:210.67:380.26:358:00Third Quarter18Sun
19Mon2:182.12:321.98:170.58:380.36:358:01Third Quarter19Mon
20Tue3:102.13:352.09:180.49:430.36:348:01Third Quarter20Tue
21Wed4:052.14:422.110:200.210:480.36:348:02Third Quarter21Wed
22Thu5:022.15:472.211:18-0.111:500.26:348:02Waning Crescent22Thu
23Fri5:592.26:482.412:14-0.36:338:03Waning Crescent23Fri
24Sat6:562.37:462.512:480.11:08-0.56:338:03Waning Crescent24Sat
25Sun7:512.48:412.71:420.02:01-0.76:338:04New Moon25Sun
26Mon8:462.49:342.72:350.02:54-0.86:328:04New Moon26Mon
27Tue9:392.510:252.73:27-0.13:46-0.86:328:05New Moon27Tue
28Wed10:312.411:172.64:19-0.14:39-0.76:328:05New Moon28Wed
29Thu11:242.45:120.05:33-0.56:328:06Waxing Crescent29Thu
30Fri12:082.512:182.36:070.16:28-0.36:318:06Waxing Crescent30Fri
31Sat12:592.41:122.27:030.27:25-0.16:318:07Waxing Crescent31Sat
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 2:32 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 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