25.0817’ N, 80.4467’ W

Rock Harbor, Key Largo, FL

88°
H 89°
L 82°
SSE
5mph
High tide
1:33 pm

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

TIDE TIMES for Wednesday, September 2, 2026
The tide is currently rising in Rock Harbor, Key Largo, FL.
Next low tide : 7:24 pm (0.8 ft)
Next high tide : in 23m at 1:33 pm (2.6 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 7:03 am
Moon phase : Third Quarter (68% illuminated)
Tide Station Location : Station #8723689
Common Questions About Tides

Rock Harbor, Key Largo, FL Tides - Mar 1970

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:301.82:271.78:240.58:58-0.26:446:23Third Quarter1Sun
2Mon3:421.93:441.89:380.510:10-0.26:436:24Third Quarter2Mon
3Tue4:531.95:011.910:490.311:18-0.46:426:24Waning Crescent3Tue
4Wed5:572.16:092.111:520.16:416:25Waning Crescent4Wed
5Thu6:532.37:092.312:19-0.512:49-0.26:406:25Waning Crescent5Thu
6Fri7:432.48:042.51:14-0.71:41-0.56:396:26New Moon6Fri
7Sat8:302.58:542.62:06-0.72:30-0.76:386:26New Moon7Sat
8Sun9:152.69:432.62:55-0.73:18-0.96:376:27New Moon8Sun
9Mon9:592.510:302.63:43-0.64:04-0.96:366:27Waxing Crescent9Mon
10Tue10:422.411:172.54:30-0.44:51-0.86:366:28Waxing Crescent10Tue
11Wed11:262.35:18-0.25:38-0.66:356:28Waxing Crescent11Wed
12Thu12:042.312:112.16:060.06:29-0.36:346:29Waxing Crescent12Thu
13Fri12:542.112:581.96:580.37:23-0.16:326:29First Quarter13Fri
14Sat1:481.91:511.87:560.58:240.16:316:30First Quarter14Sat
15Sun2:481.82:521.79:000.79:290.36:306:30First Quarter15Sun
16Mon3:551.74:001.610:060.710:320.36:296:31First Quarter16Mon
17Tue4:581.75:061.711:060.611:280.36:286:31Waxing Gibbous17Tue
18Wed5:521.86:021.811:580.56:276:31Waxing Gibbous18Wed
19Thu6:371.96:501.912:170.212:420.36:266:32Waxing Gibbous19Thu
20Fri7:162.07:332.01:000.11:210.26:256:32Waxing Gibbous20Fri
21Sat7:532.18:122.21:380.01:570.06:246:33Full Moon21Sat
22Sun8:282.28:512.22:150.02:30-0.16:236:33Full Moon22Sun
23Mon9:032.29:292.32:500.03:03-0.26:226:34Full Moon23Mon
24Tue9:382.210:072.33:240.03:36-0.36:216:34Full Moon24Tue
25Wed10:132.110:472.33:590.14:11-0.36:206:35Waning Gibbous25Wed
26Thu10:492.111:292.24:360.14:50-0.36:196:35Waning Gibbous26Thu
27Fri11:292.05:180.35:35-0.26:186:35Waning Gibbous27Fri
28Sat12:172.112:152.06:050.46:28-0.16:176:36Third Quarter28Sat
29Sun1:122.11:121.97:030.57:310.06:166:36Third Quarter29Sun
30Mon2:152.02:201.98:110.58:430.06:156:37Third Quarter30Mon
31Tue3:242.03:372.09:250.59:560.06:146:37Third Quarter31Tue
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 68% 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 Third Quarter (68% 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