Tides Today & Tomorrow in Key West, FL

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Key West, FL.
Next low tide : 10:02 pm (0.3 ft)
Next high tide : in 5h 40m at 4:05 pm (1.3 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 6:39 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8724580
Common Questions About Tides

Key West, FL Tides - May 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:421.49:051.42:090.32:400.26:517:56Waning Crescent1Wed
2Thu9:101.59:491.42:420.33:180.16:517:57Waning Crescent2Thu
3Fri9:391.710:321.43:110.33:54-0.16:507:57New Moon3Fri
4Sat10:101.711:151.33:400.34:31-0.26:497:58New Moon4Sat
5Sun10:421.84:100.45:09-0.36:497:58New Moon5Sun
6Mon12:001.311:17 AM1.94:400.45:50-0.46:487:58New Moon6Mon
7Tue12:461.211:54 AM1.95:140.46:36-0.46:477:59Waxing Crescent7Tue
8Wed1:351.112:351.85:510.57:28-0.46:477:59Waxing Crescent8Wed
9Thu2:291.01:231.86:360.58:26-0.36:468:00Waxing Crescent9Thu
10Fri3:301.02:201.77:330.69:30-0.26:468:00First Quarter10Fri
11Sat4:381.03:331.68:500.610:34-0.16:458:01First Quarter11Sat
12Sun5:431.15:001.510:200.611:350.06:448:01First Quarter12Sun
13Mon6:381.26:271.511:440.46:448:02First Quarter13Mon
14Tue7:241.47:421.512:300.112:560.36:438:03Waxing Gibbous14Tue
15Wed8:061.68:461.51:190.21:570.06:438:03Waxing Gibbous15Wed
16Thu8:451.89:421.42:030.22:52-0.26:428:04Waxing Gibbous16Thu
17Fri9:231.910:341.32:440.33:41-0.36:428:04Full Moon17Fri
18Sat10:012.011:221.33:240.34:27-0.46:428:05Full Moon18Sat
19Sun10:392.04:030.35:12-0.56:418:05Full Moon19Sun
20Mon12:071.211:18 AM2.04:410.45:57-0.46:418:06Full Moon20Mon
21Tue12:511.111:57 AM1.95:200.46:43-0.46:408:06Waning Gibbous21Tue
22Wed1:351.012:371.86:000.57:31-0.26:408:07Waning Gibbous22Wed
23Thu2:201.01:201.76:450.58:22-0.16:408:07Waning Gibbous23Thu
24Fri3:101.02:061.57:400.69:150.06:398:08Third Quarter24Fri
25Sat4:061.03:001.48:530.710:090.16:398:08Third Quarter25Sat
26Sun5:041.14:051.310:150.711:010.26:398:08Third Quarter26Sun
27Mon5:551.25:201.211:290.611:490.36:398:09Third Quarter27Mon
28Tue6:371.36:351.212:320.56:388:09Third Quarter28Tue
29Wed7:131.47:391.212:310.31:250.36:388:10Waning Crescent29Wed
30Thu7:471.58:351.21:100.42:100.26:388:10Waning Crescent30Thu
31Fri8:211.69:271.21:460.42:520.06:388:11Waning Crescent31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8724580)

Common Questions About Key West, FL Tides

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What time does the tide turn (slack tide) in Key West, FL today?

Slack tide in Key West, FL is approximately 7:03 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 Key West, FL?

Key West, FL is currently in a neap phase. Tonight's moon is 48% 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 minimum.

What datum are Key West, 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 Key West, FL?

Tide predictions for Key West, 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 Key West, FL?

Tide data for Key West, FL is sourced from NOAA Station #8724580. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8724580.

What is the moon phase in Key West, FL tonight?

Tonight the moon over Key West, FL is First Quarter (48% illuminated). This places Key West, FL in a neap tide cycle, so tidal ranges are near their weekly minimum 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