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 1h 12m 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 - Jan 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:051.06:341.612:110.011:42 AM0.47:115:50Waning Crescent1Tue
2Wed8:041.07:191.71:09-0.212:310.47:115:50Waning Crescent2Wed
3Thu8:530.98:011.71:58-0.31:160.37:115:51Waning Crescent3Thu
4Fri9:350.98:411.72:41-0.31:590.37:115:52New Moon4Fri
5Sat10:110.99:191.73:20-0.42:400.37:125:52New Moon5Sat
6Sun10:430.99:561.73:56-0.43:180.27:125:53New Moon6Sun
7Mon11:150.910:331.74:32-0.43:560.27:125:54New Moon7Mon
8Tue11:461.011:111.65:08-0.34:330.37:125:54Waxing Crescent8Tue
9Wed12:191.05:44-0.25:130.37:125:55Waxing Crescent9Wed
10Thu12:531.06:20-0.15:560.37:125:56Waxing Crescent10Thu
11Fri12:291.41:291.16:570.06:480.37:125:57Waxing Crescent11Fri
12Sat1:131.32:091.17:350.17:510.37:135:57First Quarter12Sat
13Sun2:061.12:521.18:150.29:020.27:135:58First Quarter13Sun
14Mon3:131.03:411.28:590.310:140.17:135:59First Quarter14Mon
15Tue4:390.84:351.39:480.311:22-0.17:136:00First Quarter15Tue
16Wed6:060.85:311.410:410.37:126:00Waxing Gibbous16Wed
17Thu7:170.86:261.512:24-0.311:36 AM0.37:126:01Waxing Gibbous17Thu
18Fri8:150.87:211.71:19-0.512:310.37:126:02Waxing Gibbous18Fri
19Sat9:050.88:141.82:10-0.61:230.27:126:02Full Moon19Sat
20Sun9:500.99:071.92:58-0.72:150.17:126:03Full Moon20Sun
21Mon10:330.910:001.93:44-0.73:060.07:126:04Full Moon21Mon
22Tue11:141.010:521.94:29-0.73:58-0.17:126:05Full Moon22Tue
23Wed11:551.111:441.85:14-0.64:52-0.17:116:05Waning Gibbous23Wed
24Thu12:361.25:59-0.45:51-0.17:116:06Waning Gibbous24Thu
25Fri12:381.61:191.26:45-0.26:56-0.17:116:07Waning Gibbous25Fri
26Sat1:351.32:061.37:31-0.18:07-0.17:116:08Third Quarter26Sat
27Sun2:411.12:591.38:200.19:23-0.17:106:08Third Quarter27Sun
28Mon4:030.93:581.39:120.210:39-0.17:106:09Third Quarter28Mon
29Tue5:380.75:021.310:080.311:51-0.27:106:10Third Quarter29Tue
30Wed7:000.76:031.411:070.37:096:11Waning Crescent30Wed
31Thu8:000.76:581.412:55-0.312:050.37:096:11Waning Crescent31Thu
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