Tides Today & Tomorrow in Key West, FL

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Key West, FL.
Next low tide : 11:09 pm (0.5 ft)
Next high tide : in 4h 57m at 7:04 pm (0.9 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 6:45 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8724580
Common Questions About Tides

Key West, FL Tides - Apr 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:381.49:141.42:150.22:390.06:186:43New Moon1Wed
2Thu9:071.69:541.42:420.23:15-0.26:176:43New Moon2Thu
3Fri9:361.610:351.33:090.23:51-0.36:166:44New Moon3Fri
4Sat10:081.711:181.23:360.24:30-0.46:156:44New Moon4Sat
5Sun11:421.85:050.36:12-0.47:147:45Waxing Crescent5Sun
6Mon1:021.112:181.85:360.37:00-0.47:137:45Waxing Crescent6Mon
7Tue1:511.01:001.86:120.37:54-0.37:127:45Waxing Crescent7Tue
8Wed2:470.91:491.76:550.48:58-0.27:117:46Waxing Crescent8Wed
9Thu3:550.82:521.67:530.510:07-0.17:107:46First Quarter9Thu
10Fri5:120.84:151.69:170.511:150.07:097:47First Quarter10Fri
11Sat6:191.05:471.510:510.57:087:47First Quarter11Sat
12Sun7:111.17:081.512:160.012:140.37:077:48Waxing Gibbous12Sun
13Mon7:551.38:161.51:090.11:240.17:067:48Waxing Gibbous13Mon
14Tue8:341.59:151.51:550.22:23-0.17:057:48Waxing Gibbous14Tue
15Wed9:111.710:081.52:360.23:16-0.37:047:49Full Moon15Wed
16Thu9:491.910:561.43:150.24:04-0.47:037:49Full Moon16Thu
17Fri10:261.911:421.33:520.24:50-0.57:027:50Full Moon17Fri
18Sat11:041.94:290.35:35-0.57:017:50Full Moon18Sat
19Sun12:251.211:42 AM1.95:060.36:20-0.47:017:51Waning Gibbous19Sun
20Mon1:081.012:221.85:430.37:08-0.37:007:51Waning Gibbous20Mon
21Tue1:511.01:031.76:220.47:59-0.26:597:52Waning Gibbous21Tue
22Wed2:390.91:481.67:060.58:540.06:587:52Waning Gibbous22Wed
23Thu3:340.92:391.58:050.69:530.16:577:52Third Quarter23Thu
24Fri4:420.93:421.49:270.710:520.26:567:53Third Quarter24Fri
25Sat5:481.04:591.310:530.711:460.36:567:53Third Quarter25Sat
26Sun6:361.16:171.312:060.66:557:54Third Quarter26Sun
27Mon7:131.27:231.312:320.31:060.46:547:54Waning Crescent27Mon
28Tue7:451.48:191.31:130.41:550.36:537:55Waning Crescent28Tue
29Wed8:171.59:091.31:480.42:370.16:527:55Waning Crescent29Wed
30Thu8:491.79:551.22:200.43:16-0.16:527:56Waning Crescent30Thu
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 9:06 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 transitional phase. Tonight's moon is 30% 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 Waning Crescent (30% 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