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 (tomorrow) : 11:00 am (0.3 ft)
Next high tide (tomorrow) : in 6h 07m at 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 - Jun 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:551.012:001.75:250.56:48-0.26:388:11Waning Gibbous1Fri
2Sat1:341.012:381.76:020.57:30-0.26:378:12Waning Gibbous2Sat
3Sun2:161.01:191.66:430.68:16-0.16:378:12Waning Gibbous3Sun
4Mon3:011.02:051.57:340.79:030.06:378:13Waning Gibbous4Mon
5Tue3:501.12:571.48:430.79:510.16:378:13Third Quarter5Tue
6Wed4:411.14:011.310:010.710:390.26:378:14Third Quarter6Wed
7Thu5:301.25:161.211:140.511:240.36:378:14Third Quarter7Thu
8Fri6:151.46:331.212:170.46:378:14Third Quarter8Fri
9Sat6:571.57:431.212:090.31:140.26:378:15Waning Crescent9Sat
10Sun7:381.78:451.212:530.32:05-0.16:378:15Waning Crescent10Sun
11Mon8:191.89:421.11:370.32:54-0.36:378:15Waning Crescent11Mon
12Tue9:031.910:361.12:210.33:43-0.56:378:16New Moon12Tue
13Wed9:492.011:271.13:050.34:31-0.66:378:16New Moon13Wed
14Thu10:382.13:500.35:20-0.66:378:16New Moon14Thu
15Fri12:171.111:28 AM2.14:370.36:10-0.66:388:17Waxing Crescent15Fri
16Sat1:061.112:212.15:280.37:02-0.56:388:17Waxing Crescent16Sat
17Sun1:561.11:171.96:250.37:56-0.36:388:17Waxing Crescent17Sun
18Mon2:471.22:161.87:320.48:51-0.16:388:18Waxing Crescent18Mon
19Tue3:411.23:211.68:480.49:450.06:388:18First Quarter19Tue
20Wed4:371.34:371.410:090.410:380.26:388:18First Quarter20Wed
21Thu5:321.56:001.211:260.311:280.36:398:18First Quarter21Thu
22Fri6:251.67:181.112:360.26:398:19Waxing Gibbous22Fri
23Sat7:121.78:241.112:170.41:380.06:398:19Waxing Gibbous23Sat
24Sun7:561.79:201.01:030.42:30-0.16:398:19Waxing Gibbous24Sun
25Mon8:361.810:071.01:480.43:15-0.26:408:19Waxing Gibbous25Mon
26Tue9:141.810:481.02:300.43:56-0.26:408:19Full Moon26Tue
27Wed9:511.811:251.03:110.44:34-0.36:408:19Full Moon27Wed
28Thu10:281.811:591.03:490.45:10-0.36:418:19Full Moon28Thu
29Fri11:051.84:270.45:47-0.36:418:19Full Moon29Fri
30Sat12:331.111:42 AM1.85:030.56:24-0.26:418:20Waning Gibbous30Sat
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 7:52 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