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 4h 47m at 10:02 pm (0.3 ft)
Next high tide (tomorrow) : 4:45 am (1.5 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 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:281.06:571.812:34-0.212:020.37:115:50Waxing Gibbous1Sun
2Mon8:251.07:491.91:32-0.412:560.27:115:50Waxing Gibbous2Mon
3Tue9:151.08:391.92:23-0.51:470.27:115:51Full Moon3Tue
4Wed9:591.19:261.93:09-0.52:370.17:125:52Full Moon4Wed
5Thu10:401.110:121.93:53-0.53:240.17:125:53Full Moon5Thu
6Fri11:181.110:551.84:34-0.54:110.17:125:53Waning Gibbous6Fri
7Sat11:551.111:371.65:15-0.44:590.17:125:54Waning Gibbous7Sat
8Sun12:321.25:56-0.25:490.17:125:55Waning Gibbous8Sun
9Mon12:191.51:091.26:38-0.16:440.27:125:55Waning Gibbous9Mon
10Tue1:021.31:481.27:200.07:460.27:125:56Third Quarter10Tue
11Wed1:491.12:311.28:040.18:530.27:125:57Third Quarter11Wed
12Thu2:460.93:211.28:510.210:020.27:125:58Third Quarter12Thu
13Fri4:030.84:161.29:410.311:090.17:125:58Third Quarter13Fri
14Sat5:340.75:131.310:330.47:125:59Waning Crescent14Sat
15Sun6:490.76:061.312:090.011:25 AM0.47:126:00Waning Crescent15Sun
16Mon7:430.76:551.41:00-0.112:140.37:126:00Waning Crescent16Mon
17Tue8:270.87:411.51:44-0.312:590.37:126:01Waning Crescent17Tue
18Wed9:060.88:251.62:23-0.41:420.27:126:02New Moon18Wed
19Thu9:420.99:091.73:00-0.42:230.17:126:03New Moon19Thu
20Fri10:191.09:531.73:35-0.53:050.17:126:03New Moon20Fri
21Sat10:551.110:381.74:12-0.53:490.07:126:04New Moon21Sat
22Sun11:321.111:231.64:49-0.54:36-0.17:126:05Waxing Crescent22Sun
23Mon12:101.25:28-0.45:27-0.17:116:06Waxing Crescent23Mon
24Tue12:111.512:501.36:08-0.36:25-0.17:116:06Waxing Crescent24Tue
25Wed1:031.31:341.36:52-0.17:30-0.17:116:07First Quarter25Wed
26Thu2:031.12:241.37:400.08:43-0.17:106:08First Quarter26Thu
27Fri3:170.93:241.48:330.110:00-0.27:106:09First Quarter27Fri
28Sat4:480.74:331.49:330.211:16-0.37:106:09First Quarter28Sat
29Sun6:150.75:421.510:380.27:096:10Waxing Gibbous29Sun
30Mon7:240.76:461.512:25-0.311:43 AM0.27:096:11Waxing Gibbous30Mon
31Tue8:170.87:431.61:24-0.412:440.17:096:11Waxing Gibbous31Tue
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 1:23 am — 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