Tides Today & Tomorrow in Key West, FL

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Key West, FL.
Next low tide : in 17m at 9:44 am (0.4 ft)
Next high tide : 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 - Jun 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:561.810:161.22:200.43:32-0.26:388:11New Moon1Sat
2Sun9:331.911:031.12:550.44:12-0.46:378:12New Moon2Sun
3Mon10:121.911:511.13:310.44:54-0.56:378:12New Moon3Mon
4Tue10:542.04:090.45:39-0.56:378:13New Moon4Tue
5Wed12:381.111:39 AM2.04:500.46:26-0.56:378:13Waxing Crescent5Wed
6Thu1:271.012:281.95:360.47:18-0.46:378:13Waxing Crescent6Thu
7Fri2:171.01:211.96:290.58:12-0.36:378:14Waxing Crescent7Fri
8Sat3:101.12:211.77:350.59:09-0.26:378:14First Quarter8Sat
9Sun4:061.23:301.68:550.510:050.06:378:15First Quarter9Sun
10Mon5:021.34:511.410:190.410:590.16:378:15First Quarter10Mon
11Tue5:561.46:161.311:380.311:500.26:378:15First Quarter11Tue
12Wed6:451.67:331.212:480.16:378:16Waxing Gibbous12Wed
13Thu7:311.78:391.212:390.31:50-0.16:378:16Waxing Gibbous13Thu
14Fri8:141.89:371.11:250.42:44-0.26:378:16Waxing Gibbous14Fri
15Sat8:561.910:281.12:090.43:32-0.36:388:17Full Moon15Sat
16Sun9:371.911:141.02:520.44:17-0.46:388:17Full Moon16Sun
17Mon10:181.911:561.03:340.44:59-0.46:388:17Full Moon17Mon
18Tue10:581.94:150.45:41-0.46:388:18Full Moon18Tue
19Wed12:351.011:37 AM1.84:560.46:23-0.36:388:18Waning Gibbous19Wed
20Thu1:131.012:171.85:390.57:05-0.26:388:18Waning Gibbous20Thu
21Fri1:511.012:581.76:240.57:49-0.16:398:18Waning Gibbous21Fri
22Sat2:311.11:411.67:160.68:330.06:398:18Waning Gibbous22Sat
23Sun3:121.12:281.48:190.69:180.16:398:19Third Quarter23Sun
24Mon3:561.23:221.39:300.610:020.26:398:19Third Quarter24Mon
25Tue4:411.34:281.210:410.610:440.36:408:19Third Quarter25Tue
26Wed5:271.45:441.111:460.411:260.46:408:19Third Quarter26Wed
27Thu6:111.57:001.012:440.36:408:19Waning Crescent27Thu
28Fri6:531.68:081.012:070.41:370.16:408:19Waning Crescent28Fri
29Sat7:361.79:061.012:490.52:24-0.16:418:19Waning Crescent29Sat
30Sun8:191.810:001.01:320.53:10-0.36:418:20Waning Crescent30Sun
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 12:54 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