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 28m 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 - Sep 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:122.35:190.36:010.37:087:46Waxing Crescent1Sun
2Mon12:352.01:042.16:150.26:410.57:087:44Waxing Crescent2Mon
3Tue1:162.11:581.87:140.37:230.67:087:43Waxing Crescent3Tue
4Wed1:592.12:581.68:180.38:090.77:097:42First Quarter4Wed
5Thu2:482.14:101.49:290.49:000.97:097:41First Quarter5Thu
6Fri3:452.05:431.310:430.410:010.97:107:40First Quarter6Fri
7Sat4:532.07:131.311:570.411:101.07:107:39First Quarter7Sat
8Sun6:072.08:161.31:060.47:107:38Waxing Gibbous8Sun
9Mon7:142.08:591.412:180.92:010.47:117:37Waxing Gibbous9Mon
10Tue8:092.19:321.51:200.92:450.47:117:36Waxing Gibbous10Tue
11Wed8:562.110:001.62:120.83:210.47:117:35Waxing Gibbous11Wed
12Thu9:372.110:251.72:580.83:530.57:127:34Full Moon12Thu
13Fri10:142.110:501.83:380.74:230.57:127:33Full Moon13Fri
14Sat10:502.111:161.94:160.74:510.57:127:32Full Moon14Sat
15Sun11:262.111:441.94:520.65:180.67:137:31Full Moon15Sun
16Mon12:032.05:280.65:440.77:137:30Waning Gibbous16Mon
17Tue12:132.012:421.96:050.56:100.77:137:29Waning Gibbous17Tue
18Wed12:432.01:231.86:460.56:380.87:147:28Waning Gibbous18Wed
19Thu1:152.02:101.67:340.57:080.97:147:27Waning Gibbous19Thu
20Fri1:512.03:081.58:310.57:451.07:147:26Third Quarter20Fri
21Sat2:352.04:261.39:390.58:351.17:157:25Third Quarter21Sat
22Sun3:342.05:581.310:530.59:481.17:157:23Third Quarter22Sun
23Mon4:512.17:121.412:050.57:167:22Third Quarter23Mon
24Tue6:142.28:051.51:080.47:167:21Waning Crescent24Tue
25Wed7:262.38:471.712:281.02:010.47:167:20Waning Crescent25Wed
26Thu8:292.49:251.81:340.82:470.47:177:19Waning Crescent26Thu
27Fri9:262.510:022.02:330.63:290.47:177:18New Moon27Fri
28Sat10:202.510:392.23:270.44:080.57:177:17New Moon28Sat
29Sun11:122.411:172.34:190.34:470.67:187:16New Moon29Sun
30Mon12:022.25:100.25:250.77:187:15Waxing Crescent30Mon
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