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 : 9:44 am (0.4 ft)
Next high tide : in 1h 09m at 3:57 am (1.4 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 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:082.01:441.27:000.16:220.86:545:38Waxing Crescent1Sun
2Mon12:551.82:371.27:550.27:310.86:545:38First Quarter2Mon
3Tue1:491.73:351.38:500.48:520.86:555:38First Quarter3Tue
4Wed2:531.54:311.39:440.510:090.86:565:38First Quarter4Wed
5Thu4:091.45:181.410:350.511:160.76:565:38First Quarter5Thu
6Fri5:251.45:571.511:200.66:575:38Waxing Gibbous6Fri
7Sat6:311.36:331.612:120.512:010.66:585:38Waxing Gibbous7Sat
8Sun7:261.37:081.81:000.312:380.66:585:38Waxing Gibbous8Sun
9Mon8:151.37:431.81:410.21:120.66:595:39Waxing Gibbous9Mon
10Tue9:001.38:191.92:200.01:450.67:005:39Full Moon10Tue
11Wed9:441.38:572.02:58-0.22:190.57:005:39Full Moon11Wed
12Thu10:271.29:372.03:37-0.32:540.57:015:40Full Moon12Thu
13Fri11:111.210:202.04:17-0.33:320.57:025:40Full Moon13Fri
14Sat11:561.211:052.05:01-0.34:140.57:025:40Waning Gibbous14Sat
15Sun12:421.25:48-0.35:020.57:035:41Waning Gibbous15Sun
16Mon1:301.26:38-0.26:000.57:035:41Waning Gibbous16Mon
17Tue12:501.82:221.27:320.07:110.57:045:41Third Quarter17Tue
18Wed1:531.73:171.38:280.18:340.57:055:42Third Quarter18Wed
19Thu3:111.54:141.49:240.29:570.47:055:42Third Quarter19Thu
20Fri4:381.45:091.510:180.311:130.27:065:43Third Quarter20Fri
21Sat6:021.36:001.711:110.47:065:43Waning Crescent21Sat
22Sun7:141.26:491.812:200.012:010.47:075:44Waning Crescent22Sun
23Mon8:141.27:351.91:18-0.212:490.47:075:44Waning Crescent23Mon
24Tue9:061.18:192.02:10-0.31:350.47:085:45New Moon24Tue
25Wed9:521.19:032.02:56-0.42:190.37:085:45New Moon25Wed
26Thu10:341.19:451.93:40-0.53:020.37:085:46New Moon26Thu
27Fri11:131.010:271.94:22-0.43:440.37:095:46New Moon27Fri
28Sat11:491.011:071.85:03-0.44:270.37:095:47Waxing Crescent28Sat
29Sun12:251.05:44-0.35:110.47:105:48Waxing Crescent29Sun
30Mon1:021.16:27-0.16:010.47:105:48Waxing Crescent30Mon
31Tue12:291.51:401.17:100.06:580.57:105:49Waxing Crescent31Tue
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 6:50 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