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 5h 41m 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 - Nov 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:482.32:221.57:330.26:531.07:336:47Waxing Crescent1Fri
2Sat1:342.23:221.48:320.47:481.07:346:46First Quarter2Sat
3Sun1:272.13:371.48:360.58:031.16:355:46First Quarter3Sun
4Mon2:301.94:561.49:420.69:291.16:355:45First Quarter4Mon
5Tue3:481.85:521.510:420.710:461.16:365:45First Quarter5Tue
6Wed5:071.86:301.611:350.711:510.96:375:44Waxing Gibbous6Wed
7Thu6:131.86:591.712:190.76:375:43Waxing Gibbous7Thu
8Fri7:071.87:261.912:430.812:560.86:385:43Waxing Gibbous8Fri
9Sat7:521.87:542.01:260.71:290.86:385:42Waxing Gibbous9Sat
10Sun8:341.88:222.12:050.51:590.86:395:42Full Moon10Sun
11Mon9:151.88:532.12:400.42:270.86:405:42Full Moon11Mon
12Tue9:561.79:252.23:160.22:540.86:405:41Full Moon12Tue
13Wed10:381.69:582.23:520.13:230.86:415:41Full Moon13Wed
14Thu11:211.610:342.24:300.13:540.86:425:40Waning Gibbous14Thu
15Fri12:071.55:130.04:290.86:425:40Waning Gibbous15Fri
16Sat12:571.46:000.15:090.86:435:40Waning Gibbous16Sat
17Sun1:531.36:540.26:000.96:445:39Waning Gibbous17Sun
18Mon12:522.12:561.37:560.27:090.96:455:39Third Quarter18Mon
19Tue1:582.04:021.49:000.38:380.96:455:39Third Quarter19Tue
20Wed3:211.95:021.510:030.410:060.86:465:39Third Quarter20Wed
21Thu4:501.85:521.711:000.511:220.66:475:38Waning Crescent21Thu
22Fri6:091.86:361.911:510.56:475:38Waning Crescent22Fri
23Sat7:161.87:172.012:270.412:370.66:485:38Waning Crescent23Sat
24Sun8:151.77:572.21:240.11:200.66:495:38Waning Crescent24Sun
25Mon9:091.78:382.32:150.02:010.66:495:38New Moon25Mon
26Tue9:581.69:182.33:03-0.22:410.66:505:38New Moon26Tue
27Wed10:441.510:002.33:50-0.23:210.66:515:38New Moon27Wed
28Thu11:291.410:422.24:35-0.24:010.66:525:38Waxing Crescent28Thu
29Fri12:121.35:22-0.14:430.66:525:37Waxing Crescent29Fri
30Sat12:571.26:100.05:290.76:535:37Waxing Crescent30Sat
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