Tides Today & Tomorrow in Key West, FL

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Key West, FL.
Next low tide : in 2h 12m at 12:15 pm (0.0 ft)
Next high tide : 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 - Aug 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:271.612:372.05:470.16:300.16:558:11Waxing Crescent1Sat
2Sun1:071.81:301.86:470.17:100.26:568:10Waxing Crescent2Sun
3Mon1:491.82:251.57:510.17:520.46:568:09Waxing Crescent3Mon
4Tue2:351.93:281.29:000.28:370.56:578:09First Quarter4Tue
5Wed3:261.94:471.010:140.29:270.66:578:08First Quarter5Wed
6Thu4:251.96:240.911:290.210:250.66:578:07First Quarter6Thu
7Fri5:331.87:490.912:430.26:588:07Waxing Gibbous7Fri
8Sat6:411.98:471.01:480.26:588:06Waxing Gibbous8Sat
9Sun7:411.99:291.112:340.72:380.26:598:05Waxing Gibbous9Sun
10Mon8:321.910:011.21:340.73:170.26:598:05Waxing Gibbous10Mon
11Tue9:162.010:281.32:270.63:500.27:008:04Full Moon11Tue
12Wed9:552.010:541.43:130.64:210.27:008:03Full Moon12Wed
13Thu10:322.011:191.53:540.54:500.27:008:02Full Moon13Thu
14Fri11:091.911:461.64:330.55:170.37:018:01Full Moon14Fri
15Sat11:451.95:110.55:440.37:018:01Waning Gibbous15Sat
16Sun12:141.712:221.85:500.46:100.47:028:00Waning Gibbous16Sun
17Mon12:431.71:011.66:310.46:360.57:027:59Waning Gibbous17Mon
18Tue1:141.81:431.57:160.47:030.67:037:58Waning Gibbous18Tue
19Wed1:471.82:311.38:090.47:330.67:037:57Third Quarter19Wed
20Thu2:261.83:321.19:130.48:100.77:037:56Third Quarter20Thu
21Fri3:141.94:591.010:250.39:000.87:047:55Third Quarter21Fri
22Sat4:171.96:361.011:400.310:120.87:047:55Third Quarter22Sat
23Sun5:332.07:461.112:490.27:057:54Waning Crescent23Sun
24Mon6:482.18:351.21:470.27:057:53Waning Crescent24Mon
25Tue7:552.29:161.412:490.72:370.17:057:52Waning Crescent25Tue
26Wed8:562.39:541.61:550.63:200.17:067:51New Moon26Wed
27Thu9:522.410:321.82:540.44:000.27:067:50New Moon27Thu
28Fri10:452.311:091.93:500.34:380.37:067:49New Moon28Fri
29Sat11:362.211:482.14:440.25:150.47:077:48New Moon29Sat
30Sun12:262.05:370.15:530.57:077:47Waxing Crescent30Sun
31Mon12:272.21:171.86:320.16:310.67:087:46Waxing Crescent31Mon
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 3:39 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