Tides Today & Tomorrow in Key West, FL

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Key West, FL.
Next low tide : in 4h 09m at 8:24 am (0.4 ft)
Next high tide : 2:57 pm (1.6 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 6:38 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8724580
Common Questions About Tides

Key West, FL Tides - Aug 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:341.65:591.011:380.410:440.76:558:11Third Quarter1Sun
2Mon5:261.67:300.912:430.36:568:10Waning Crescent2Mon
3Tue6:211.78:380.91:410.26:568:09Waning Crescent3Tue
4Wed7:151.79:241.012:240.72:320.16:578:09Waning Crescent4Wed
5Thu8:051.810:011.01:140.73:140.06:578:08Waning Crescent5Thu
6Fri8:521.910:341.12:020.73:520.06:578:07Waning Crescent6Fri
7Sat9:372.011:071.22:460.74:26-0.16:588:07New Moon7Sat
8Sun10:212.111:391.33:300.65:000.06:588:06New Moon8Sun
9Mon11:052.14:130.55:330.06:598:05New Moon9Mon
10Tue12:121.411:49 AM2.14:580.56:060.16:598:05Waxing Crescent10Tue
11Wed12:451.512:352.05:470.46:410.27:008:04Waxing Crescent11Wed
12Thu1:191.61:231.86:400.47:170.37:008:03Waxing Crescent12Thu
13Fri1:551.72:161.67:400.37:550.57:018:02Waxing Crescent13Fri
14Sat2:351.83:181.48:470.38:370.67:018:01First Quarter14Sat
15Sun3:211.94:391.210:010.29:240.77:018:01First Quarter15Sun
16Mon4:171.96:171.111:170.210:210.77:028:00First Quarter16Mon
17Tue5:252.07:451.112:320.17:027:59Waxing Gibbous17Tue
18Wed6:362.18:491.11:410.07:037:58Waxing Gibbous18Wed
19Thu7:432.29:371.212:350.72:390.07:037:57Waxing Gibbous19Thu
20Fri8:442.210:181.31:400.73:280.07:037:56Waxing Gibbous20Fri
21Sat9:392.310:531.42:390.64:100.07:047:56Full Moon21Sat
22Sun10:282.311:271.53:330.54:480.17:047:55Full Moon22Sun
23Mon11:142.211:591.64:230.55:240.27:057:54Full Moon23Mon
24Tue11:582.15:120.45:590.37:057:53Waning Gibbous24Tue
25Wed12:291.712:392.06:000.46:320.57:057:52Waning Gibbous25Wed
26Thu1:001.81:191.86:500.57:060.67:067:51Waning Gibbous26Thu
27Fri1:311.82:011.67:420.57:390.77:067:50Waning Gibbous27Fri
28Sat2:041.82:481.48:390.58:130.87:067:49Third Quarter28Sat
29Sun2:421.83:481.29:430.58:490.97:077:48Third Quarter29Sun
30Mon3:281.85:161.110:520.59:341.07:077:47Third Quarter30Mon
31Tue4:261.87:081.112:030.57:087:46Third Quarter31Tue
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 11:40 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 transitional phase. Tonight's moon is 37% 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 shifting between spring and neap.

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 (37% illuminated). This places Key West, FL in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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