24.5578’ N, 81.7788’ W

Key West, FL

83°
H 84°
L 81°
SSW
11mph
Low tide
1:32 pm

Tides Today & Tomorrow in Key West, FL

TIDE TIMES for Monday, September 21, 2026
The tide is currently falling in Key West, FL.
Next low tide : in 4h 51m at 1:32 pm (0.6 ft)
Next high tide : 8:25 pm (1.4 ft)
Sunset today : 7:24 pm
Sunrise tomorrow : 7:15 am
Moon phase : Waxing Gibbous (75% illuminated)
Tide Station Location : Station #8724580
Common Questions About Tides

Key West, FL Tides - May 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:250.912:191.75:330.57:23-0.26:517:56Waxing Crescent1Wed
2Thu2:120.912:571.66:000.68:14-0.16:507:57Waxing Crescent2Thu
3Fri3:070.81:421.66:330.69:110.06:507:57Waxing Crescent3Fri
4Sat4:130.82:371.57:260.710:120.16:497:58First Quarter4Sat
5Sun5:210.93:501.59:000.811:100.16:487:58First Quarter5Sun
6Mon6:121.05:161.410:440.76:487:59First Quarter6Mon
7Tue6:521.26:381.512:010.212:040.56:477:59Waxing Gibbous7Tue
8Wed7:271.47:491.512:460.21:090.36:468:00Waxing Gibbous8Wed
9Thu8:011.68:521.41:270.32:060.06:468:00Waxing Gibbous9Thu
10Fri8:361.89:501.42:060.32:58-0.36:458:01Waxing Gibbous10Fri
11Sat9:142.010:461.32:440.43:49-0.56:458:01Full Moon11Sat
12Sun9:562.111:401.23:220.44:39-0.76:448:02Full Moon12Sun
13Mon10:402.24:010.45:31-0.76:448:02Full Moon13Mon
14Tue12:321.111:29 AM2.24:420.46:24-0.66:438:03Waning Gibbous14Tue
15Wed1:261.012:212.15:250.47:22-0.56:438:03Waning Gibbous15Wed
16Thu2:210.91:172.06:160.58:23-0.36:428:04Waning Gibbous16Thu
17Fri3:210.92:181.87:190.59:26-0.16:428:04Third Quarter17Fri
18Sat4:260.93:291.68:440.610:260.06:418:05Third Quarter18Sat
19Sun5:291.14:501.510:170.611:200.26:418:05Third Quarter19Sun
20Mon6:211.26:131.311:410.56:418:06Third Quarter20Mon
21Tue7:031.47:261.312:070.312:510.46:408:06Waning Crescent21Tue
22Wed7:371.58:261.212:490.41:490.26:408:07Waning Crescent22Wed
23Thu8:081.69:161.21:270.52:370.06:408:07Waning Crescent23Thu
24Fri8:381.710:011.12:020.53:18-0.16:398:08Waning Crescent24Fri
25Sat9:071.810:411.02:360.53:56-0.26:398:08New Moon25Sat
26Sun9:381.811:191.03:080.54:32-0.36:398:09New Moon26Sun
27Mon10:111.811:571.03:380.55:08-0.36:388:09New Moon27Mon
28Tue10:471.84:070.55:45-0.36:388:10New Moon28Tue
29Wed12:370.911:24 AM1.84:360.56:24-0.36:388:10Waxing Crescent29Wed
30Thu1:180.912:031.85:080.67:07-0.26:388:10Waxing Crescent30Thu
31Fri2:010.912:441.75:450.67:52-0.26:388:11Waxing Crescent31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8724580)

Common Questions About Key West, FL Tides

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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 75% 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 Waxing Gibbous (75% 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