Tides Today & Tomorrow in Key West, FL

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Key West, FL.
Next low tide : 8:24 am (0.4 ft)
Next high tide : in 12m at 3:10 am (1.3 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 - Sep 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:341.88:161.21:070.47:087:45Waning Crescent1Wed
2Thu6:421.98:541.22:010.47:087:44Waning Crescent2Thu
3Fri7:412.09:251.312:511.02:440.37:097:43Waning Crescent3Fri
4Sat8:332.19:551.51:450.93:200.37:097:42Waning Crescent4Sat
5Sun9:212.210:251.62:330.83:530.37:097:41New Moon5Sun
6Mon10:072.310:561.73:190.74:250.37:107:40New Moon6Mon
7Tue10:532.311:271.94:040.64:560.47:107:39New Moon7Tue
8Wed11:392.24:500.45:280.57:107:38New Moon8Wed
9Thu12:002.012:272.15:380.36:010.67:117:37Waxing Crescent9Thu
10Fri12:352.11:171.96:300.36:360.77:117:36Waxing Crescent10Fri
11Sat1:122.22:121.77:280.37:130.87:127:35Waxing Crescent11Sat
12Sun1:542.23:181.48:340.37:550.97:127:34First Quarter12Sun
13Mon2:452.24:441.39:470.38:481.07:127:33First Quarter13Mon
14Tue3:512.26:261.211:070.310:001.07:137:31First Quarter14Tue
15Wed5:112.27:431.312:240.37:137:30Waxing Gibbous15Wed
16Thu6:332.28:341.41:320.47:137:29Waxing Gibbous16Thu
17Fri7:442.39:131.512:390.92:250.47:147:28Waxing Gibbous17Fri
18Sat8:432.39:471.71:450.83:070.47:147:27Waxing Gibbous18Sat
19Sun9:352.310:181.82:420.73:420.57:147:26Full Moon19Sun
20Mon10:202.310:471.93:310.64:150.57:157:25Full Moon20Mon
21Tue11:022.211:152.14:170.54:460.67:157:24Full Moon21Tue
22Wed11:412.111:422.15:000.55:170.77:157:23Full Moon22Wed
23Thu12:192.05:420.55:470.87:167:22Waning Gibbous23Thu
24Fri12:102.112:571.86:240.56:160.97:167:21Waning Gibbous24Fri
25Sat12:402.11:361.77:090.56:431.07:167:20Waning Gibbous25Sat
26Sun1:122.12:221.57:590.57:091.07:177:19Waning Gibbous26Sun
27Mon1:492.03:191.48:570.67:351.17:177:18Third Quarter27Mon
28Tue2:342.04:431.310:050.68:121.27:187:17Third Quarter28Tue
29Wed3:321.96:341.311:180.79:391.27:187:16Third Quarter29Wed
30Thu4:491.97:351.412:250.67:187:15Third Quarter30Thu
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 5:47 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