Tides Today & Tomorrow in Long Key, western end, FL

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Long Key, western end, FL.
Next low tide : in 44m at 6:39 pm (0.2 ft)
Next high tide (tomorrow) : 1:03 am (1.6 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:58 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8723899
Common Questions About Tides

Long Key, western end, FL Tides - Mar 2096

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:270.61:361.26:530.19:02-0.16:446:26First Quarter1Thu
2Fri4:130.52:531.27:550.110:24-0.16:436:26First Quarter2Fri
3Sat5:450.54:201.29:140.111:39-0.16:426:27Waxing Gibbous3Sat
4Sun6:430.65:361.210:350.16:416:27Waxing Gibbous4Sun
5Mon7:240.66:381.312:37-0.111:45 AM0.16:406:28Waxing Gibbous5Mon
6Tue7:570.77:301.31:21-0.112:430.16:396:28Waxing Gibbous6Tue
7Wed8:270.98:141.31:57-0.11:330.06:386:29Full Moon7Wed
8Thu8:531.08:541.32:28-0.12:170.06:376:29Full Moon8Thu
9Fri9:191.09:311.22:580.02:580.06:366:30Full Moon9Fri
10Sat9:441.110:061.23:270.03:380.06:356:30Full Moon10Sat
11Sun11:091.211:421.14:560.05:17-0.17:347:30Waning Gibbous11Sun
12Mon11:361.25:220.05:57-0.17:337:31Waning Gibbous12Mon
13Tue12:180.912:041.25:470.16:41-0.17:327:31Waning Gibbous13Tue
14Wed12:580.812:361.16:090.17:300.07:317:32Waning Gibbous14Wed
15Thu1:460.71:121.16:300.18:290.07:307:32Third Quarter15Thu
16Fri2:520.51:571.16:520.29:390.07:297:33Third Quarter16Fri
17Sat4:410.53:011.07:270.210:540.07:287:33Third Quarter17Sat
18Sun6:320.54:261.19:100.27:277:34Third Quarter18Sun
19Mon7:160.65:461.212:010.010:57 AM0.27:267:34Waning Crescent19Mon
20Tue7:470.76:531.312:55-0.112:110.17:257:35Waning Crescent20Tue
21Wed8:160.87:501.41:39-0.11:110.17:247:35Waning Crescent21Wed
22Thu8:461.08:431.42:17-0.12:030.07:237:35Waning Crescent22Thu
23Fri9:171.19:341.52:53-0.12:520.07:227:36New Moon23Fri
24Sat9:491.310:251.43:270.03:41-0.17:217:36New Moon24Sat
25Sun10:231.411:151.34:020.04:30-0.27:207:37New Moon25Sun
26Mon10:581.54:360.05:22-0.27:197:37Waxing Crescent26Mon
27Tue12:061.111:37 AM1.55:120.16:18-0.27:187:38Waxing Crescent27Tue
28Wed1:010.912:201.55:490.17:20-0.17:177:38Waxing Crescent28Wed
29Thu2:040.71:101.46:310.18:30-0.17:167:38First Quarter29Thu
30Fri3:250.62:131.37:230.29:47-0.17:157:39First Quarter30Fri
31Sat5:070.63:371.28:400.211:050.07:147:39First Quarter31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723899)

Common Questions About Long Key, western end, FL Tides

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What time does the tide turn (slack tide) in Long Key, western end, FL today?

Slack tide in Long Key, western end, FL is approximately 9:51 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 Long Key, western end, FL?

Long Key, western end, FL is currently in a transitional phase. Tonight's moon is 27% 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 Long Key, western end, 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 Long Key, western end, FL?

Tide predictions for Long Key, western end, 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 Long Key, western end, FL?

Tide data for Long Key, western end, FL is sourced from NOAA Station #8723899. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8723899.

What is the moon phase in Long Key, western end, FL tonight?

Tonight the moon over Long Key, western end, FL is Waxing Crescent (27% illuminated). This places Long Key, western end, 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