24.5578’ N, 81.7788’ W

Key West, FL

84°
H -°
L 81°
S
7mph
High tide
8:25 pm

Tides Today & Tomorrow in Key West, FL

TIDE TIMES for Monday, September 21, 2026
The tide is currently rising in Key West, FL.
Next low tide (tomorrow) : 12:42 am (1.1 ft)
Next high tide : in 59m at 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 - Apr 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:500.72:251.57:240.59:56-0.16:196:43Third Quarter1Sat
2Sun5:400.73:501.48:490.611:130.06:186:43Third Quarter2Sun
3Mon6:470.85:221.410:250.66:176:43Third Quarter3Mon
4Tue7:270.96:361.412:180.011:47 AM0.56:166:44Waning Crescent4Tue
5Wed7:571.17:321.51:050.112:510.46:156:44Waning Crescent5Wed
6Thu8:211.28:181.51:410.11:410.36:146:45Waning Crescent6Thu
7Fri8:431.38:571.52:120.22:230.16:136:45Waning Crescent7Fri
8Sat9:051.59:341.52:400.23:010.06:126:46New Moon8Sat
9Sun9:281.610:101.43:060.23:36-0.16:116:46New Moon9Sun
10Mon9:521.610:461.33:310.34:10-0.26:106:46New Moon10Mon
11Tue10:181.711:241.23:550.34:44-0.26:096:47New Moon11Tue
12Wed10:461.74:170.45:21-0.36:086:47Waxing Crescent12Wed
13Thu12:041.111:15 AM1.74:400.46:02-0.36:076:48Waxing Crescent13Thu
14Fri12:480.911:47 AM1.65:030.56:50-0.26:066:48Waxing Crescent14Fri
15Sat1:410.812:261.65:310.57:48-0.26:056:48Waxing Crescent15Sat
16Sun2:500.81:151.66:070.68:57-0.16:046:49First Quarter16Sun
17Mon4:190.82:251.57:100.710:080.06:036:49First Quarter17Mon
18Tue5:330.83:581.58:590.711:120.06:026:50First Quarter18Tue
19Wed6:191.05:281.610:380.66:016:50Waxing Gibbous19Wed
20Thu6:551.26:431.612:060.011:55 AM0.46:016:51Waxing Gibbous20Thu
21Fri7:291.47:461.712:510.112:580.16:006:51Waxing Gibbous21Fri
22Sat8:021.68:441.71:310.11:54-0.15:596:52Waxing Gibbous22Sat
23Sun8:371.89:391.62:090.22:46-0.45:586:52Full Moon23Sun
24Mon9:142.010:311.42:460.23:36-0.65:576:53Full Moon24Mon
25Tue9:532.111:231.33:220.34:26-0.65:566:53Full Moon25Tue
26Wed10:342.13:590.35:18-0.65:556:53Waning Gibbous26Wed
27Thu12:151.111:19 AM2.04:360.46:13-0.55:556:54Waning Gibbous27Thu
28Fri1:090.912:071.95:170.47:12-0.35:546:54Waning Gibbous28Fri
29Sat2:110.81:001.86:050.58:18-0.25:536:55Third Quarter29Sat
30Sun4:270.83:031.68:120.610:250.06:527:55Third Quarter30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8724580)

Common Questions About Key West, FL Tides

Collapse All
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