Tides Today & Tomorrow in Key West, FL

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Key West, FL.
Next low tide : in 28m at 10:02 pm (0.3 ft)
Next high tide (tomorrow) : 4:45 am (1.5 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 6:39 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8724580
Common Questions About Tides

Key West, FL Tides - May 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:271.610:191.32:550.33:400.06:517:56Full Moon1Mon
2Tue9:561.710:551.33:280.34:16-0.16:507:57Full Moon2Tue
3Wed10:261.711:311.23:590.34:51-0.26:507:57Full Moon3Wed
4Thu10:581.84:290.45:26-0.26:497:58Full Moon4Thu
5Fri12:081.211:31 AM1.74:580.46:02-0.26:487:58Waning Gibbous5Fri
6Sat12:471.112:061.75:280.46:40-0.26:487:59Waning Gibbous6Sat
7Sun1:281.112:421.75:590.57:22-0.26:477:59Waning Gibbous7Sun
8Mon2:131.11:231.66:370.68:09-0.16:478:00Waning Gibbous8Mon
9Tue3:031.02:091.57:260.69:020.06:468:00Third Quarter9Tue
10Wed4:001.13:081.58:340.69:580.16:458:01Third Quarter10Wed
11Thu4:591.14:221.49:570.610:550.16:458:01Third Quarter11Thu
12Fri5:551.25:451.411:170.511:500.26:448:02Third Quarter12Fri
13Sat6:451.47:031.412:270.36:448:02Waning Crescent13Sat
14Sun7:301.68:111.412:410.21:290.16:438:03Waning Crescent14Sun
15Mon8:131.79:111.41:300.22:25-0.26:438:03Waning Crescent15Mon
16Tue8:571.910:081.42:160.23:17-0.46:428:04New Moon16Tue
17Wed9:412.011:011.33:010.24:07-0.56:428:04New Moon17Wed
18Thu10:272.111:521.33:450.24:57-0.66:418:05New Moon18Thu
19Fri11:152.14:300.25:47-0.66:418:05New Moon19Fri
20Sat12:421.212:032.15:170.36:39-0.56:418:06Waxing Crescent20Sat
21Sun1:321.212:541.96:070.37:33-0.36:408:06Waxing Crescent21Sun
22Mon2:241.11:471.87:050.48:28-0.26:408:07Waxing Crescent22Mon
23Tue3:191.12:441.68:120.59:250.06:408:07First Quarter23Tue
24Wed4:181.23:511.49:300.510:210.16:398:08First Quarter24Wed
25Thu5:181.35:081.310:480.511:150.26:398:08First Quarter25Thu
26Fri6:131.46:281.212:000.46:398:09First Quarter26Fri
27Sat6:591.57:361.112:050.31:030.36:398:09Waxing Gibbous27Sat
28Sun7:381.58:321.112:510.41:560.26:388:10Waxing Gibbous28Sun
29Mon8:131.69:191.11:330.42:410.06:388:10Waxing Gibbous29Mon
30Tue8:471.710:001.12:120.43:21-0.16:388:11Waxing Gibbous30Tue
31Wed9:201.710:391.12:480.43:58-0.26:388:11Full Moon31Wed
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 1:23 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 neap phase. Tonight's moon is 48% 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 near their weekly minimum.

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 (48% illuminated). This places Key West, FL in a neap tide cycle, so tidal ranges are near their weekly minimum 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