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 2m 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 - Dec 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:431.65:341.610:400.411:160.56:545:38Third Quarter1Sat
2Sun6:031.66:221.811:320.56:555:38Waning Crescent2Sun
3Mon7:111.57:051.912:210.312:190.56:555:38Waning Crescent3Mon
4Tue8:081.57:452.01:170.11:030.56:565:38Waning Crescent4Tue
5Wed8:581.48:232.12:060.01:440.56:575:38New Moon5Wed
6Thu9:421.49:002.12:50-0.12:230.56:575:38New Moon6Thu
7Fri10:221.39:362.03:31-0.23:010.56:585:38New Moon7Fri
8Sat11:001.310:132.04:10-0.23:380.56:595:39New Moon8Sat
9Sun11:361.210:501.94:50-0.24:150.56:595:39Waxing Crescent9Sun
10Mon12:131.25:30-0.14:530.67:005:39Waxing Crescent10Mon
11Tue12:511.26:120.05:330.67:015:39Waxing Crescent11Tue
12Wed12:081.71:331.26:560.16:220.77:015:40Waxing Crescent12Wed
13Thu12:521.62:191.27:430.27:240.77:025:40First Quarter13Thu
14Fri1:421.53:091.28:320.38:400.77:025:40First Quarter14Fri
15Sat2:421.44:011.39:210.49:550.67:035:41First Quarter15Sat
16Sun3:571.34:501.410:080.411:010.57:045:41First Quarter16Sun
17Mon5:161.25:361.510:540.511:590.37:045:41Waxing Gibbous17Mon
18Tue6:281.26:201.611:380.57:055:42Waxing Gibbous18Tue
19Wed7:291.27:021.812:500.112:220.57:055:42Waxing Gibbous19Wed
20Thu8:231.27:451.91:38-0.21:050.47:065:43Waxing Gibbous20Thu
21Fri9:141.28:302.02:24-0.31:480.47:065:43Full Moon21Fri
22Sat10:011.29:172.13:09-0.52:310.37:075:44Full Moon22Sat
23Sun10:481.210:062.13:55-0.63:170.37:075:44Full Moon23Sun
24Mon11:341.110:572.14:42-0.54:040.27:085:45Waning Gibbous24Mon
25Tue12:201.25:31-0.54:570.27:085:45Waning Gibbous25Tue
26Wed1:081.26:21-0.35:560.37:095:46Waning Gibbous26Wed
27Thu12:461.81:581.27:14-0.27:060.37:095:47Third Quarter27Thu
28Fri1:481.62:521.38:080.08:240.37:095:47Third Quarter28Fri
29Sat3:011.43:501.49:030.29:450.27:105:48Third Quarter29Sat
30Sun4:261.24:491.59:580.311:020.17:105:48Third Quarter30Sun
31Mon5:521.15:451.510:510.37:105:49Waning Crescent31Mon
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