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 3h 05m 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 - Mar 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:551.410:151.73:19-0.43:24-0.46:486:29New Moon1Tue
2Wed10:341.511:051.63:58-0.34:15-0.56:476:30New Moon2Wed
3Thu11:141.611:551.44:38-0.25:08-0.56:476:30Waxing Crescent3Thu
4Fri11:551.65:18-0.16:03-0.56:466:31Waxing Crescent4Fri
5Sat12:461.212:391.66:000.07:03-0.46:456:31Waxing Crescent5Sat
6Sun1:431.01:281.56:460.18:09-0.36:446:32First Quarter6Sun
7Mon2:490.82:271.47:400.29:21-0.26:436:32First Quarter7Mon
8Tue4:150.73:401.48:460.310:36-0.16:426:33First Quarter8Tue
9Wed5:450.75:021.310:020.311:46-0.16:416:33First Quarter9Wed
10Thu6:520.86:161.311:170.36:406:34Waxing Gibbous10Thu
11Fri7:380.97:151.412:44-0.112:230.36:396:34Waxing Gibbous11Fri
12Sat8:131.08:021.41:29-0.11:170.26:386:34Waxing Gibbous12Sat
13Sun9:431.19:431.43:06-0.13:030.17:377:35Waxing Gibbous13Sun
14Mon10:101.210:201.43:39-0.13:430.07:367:35Full Moon14Mon
15Tue10:361.310:551.44:100.04:20-0.17:357:36Full Moon15Tue
16Wed11:031.411:291.44:390.04:55-0.17:347:36Full Moon16Wed
17Thu11:321.55:070.05:30-0.27:337:37Full Moon17Thu
18Fri12:051.312:011.55:330.16:06-0.27:327:37Waning Gibbous18Fri
19Sat12:411.212:321.55:590.16:44-0.27:317:38Waning Gibbous19Sat
20Sun1:201.11:051.56:260.27:27-0.27:307:38Waning Gibbous20Sun
21Mon2:041.01:411.46:570.38:18-0.17:297:38Waning Gibbous21Mon
22Tue2:560.92:251.47:340.49:19-0.17:287:39Third Quarter22Tue
23Wed4:030.83:221.48:270.410:27-0.17:277:39Third Quarter23Wed
24Thu5:270.84:391.49:430.511:36-0.17:267:40Third Quarter24Thu
25Fri6:420.96:041.411:110.57:257:40Third Quarter25Fri
26Sat7:371.07:191.512:39-0.112:280.37:247:40Waning Crescent26Sat
27Sun8:221.28:231.61:34-0.11:340.17:237:41Waning Crescent27Sun
28Mon9:021.39:211.72:21-0.12:32-0.17:227:41Waning Crescent28Mon
29Tue9:421.510:151.73:05-0.13:25-0.37:217:42New Moon29Tue
30Wed10:211.711:061.63:46-0.14:15-0.47:207:42New Moon30Wed
31Thu11:011.811:561.54:260.05:05-0.57:197:43New Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8724580)

Common Questions About Key West, FL Tides

Show All
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