24.5578’ N, 81.7788’ W

Key West, FL

80°
H -°
L 79°
SSE
11mph
Low tide
12:42 am

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 (tomorrow) : in 2h 54m at 12:42 am (1.1 ft)
Next high tide (tomorrow) : 7:21 am (2.1 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 - Jan 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:361.81:481.27:08-0.16:530.37:115:50Waning Gibbous1Sun
2Mon1:361.62:331.37:550.08:120.27:115:50Third Quarter2Mon
3Tue2:461.33:231.48:430.29:330.17:115:51Third Quarter3Tue
4Wed4:121.14:171.59:320.310:510.07:125:51Third Quarter4Wed
5Thu5:450.95:141.610:230.47:125:52Waning Crescent5Thu
6Fri7:060.96:101.712:02-0.211:16 AM0.47:125:53Waning Crescent6Fri
7Sat8:120.87:041.81:06-0.412:090.47:125:54Waning Crescent7Sat
8Sun9:040.87:551.82:01-0.51:010.37:125:54Waning Crescent8Sun
9Mon9:480.88:441.82:49-0.51:510.37:125:55New Moon9Mon
10Tue10:270.89:301.83:32-0.52:390.27:135:56New Moon10Tue
11Wed11:010.810:131.84:12-0.53:240.27:135:56New Moon11Wed
12Thu11:330.910:541.74:50-0.44:090.27:135:57Waxing Crescent12Thu
13Fri12:041.05:28-0.34:540.27:135:58Waxing Crescent13Fri
14Sat12:341.06:04-0.25:420.27:135:59Waxing Crescent14Sat
15Sun12:131.51:051.16:41-0.16:350.37:135:59Waxing Crescent15Sun
16Mon12:551.31:381.17:160.17:350.37:136:00Waxing Crescent16Mon
17Tue1:411.12:141.27:510.28:410.27:136:01First Quarter17Tue
18Wed2:370.92:561.28:260.39:500.17:126:02First Quarter18Wed
19Thu3:530.73:441.29:040.410:580.07:126:02First Quarter19Thu
20Fri5:310.64:381.39:480.47:126:03First Quarter20Fri
21Sat6:590.65:361.312:02-0.110:40 AM0.47:126:04Waxing Gibbous21Sat
22Sun8:010.66:331.512:58-0.311:36 AM0.47:126:05Waxing Gibbous22Sun
23Mon8:470.67:271.61:48-0.512:310.47:126:05Waxing Gibbous23Mon
24Tue9:260.78:191.72:32-0.61:240.37:116:06Full Moon24Tue
25Wed10:020.89:091.83:14-0.62:140.27:116:07Full Moon25Wed
26Thu10:380.99:591.93:54-0.73:030.17:116:07Full Moon26Thu
27Fri11:131.010:491.94:33-0.63:540.07:116:08Full Moon27Fri
28Sat11:481.111:401.75:12-0.54:48-0.17:106:09Waning Gibbous28Sat
29Sun12:251.25:51-0.35:45-0.17:106:10Waning Gibbous29Sun
30Mon12:321.51:031.36:31-0.26:49-0.27:106:10Waning Gibbous30Mon
31Tue1:291.31:441.47:110.08:00-0.27:096:11Third Quarter31Tue
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