Tides Today & Tomorrow in Long Key Bight, Long Key, FL

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Long Key Bight, Long Key, FL.
Next low tide : 9:54 pm (0.6 ft)
Next high tide : in 5h 00m at 6:55 pm (1.0 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 7:00 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8723879
Common Questions About Tides

Long Key Bight, Long Key, FL Tides - Aug 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:142.18:471.212:330.32:15-0.16:518:07Waning Crescent1Sat
2Sun8:092.29:331.31:290.33:02-0.26:518:07New Moon2Sun
3Mon9:042.310:171.42:240.23:48-0.26:528:06New Moon3Mon
4Tue9:572.310:591.53:180.24:32-0.16:528:05New Moon4Tue
5Wed10:502.311:411.64:120.15:16-0.16:538:05Waxing Crescent5Wed
6Thu11:422.15:070.16:000.06:538:04Waxing Crescent6Thu
7Fri12:241.712:351.96:070.16:450.16:548:03Waxing Crescent7Fri
8Sat1:081.81:311.77:110.27:310.26:548:03First Quarter8Sat
9Sun1:561.92:351.58:200.28:210.36:558:02First Quarter9Sun
10Mon2:491.93:521.39:340.29:140.46:558:01First Quarter10Mon
11Tue3:491.95:211.210:470.210:120.46:558:00First Quarter11Tue
12Wed4:541.96:411.111:570.211:120.46:568:00Waxing Gibbous12Wed
13Thu5:561.97:401.212:580.16:567:59Waxing Gibbous13Thu
14Fri6:501.98:251.212:100.41:490.16:577:58Waxing Gibbous14Fri
15Sat7:382.09:011.31:040.42:300.16:577:57Waxing Gibbous15Sat
16Sun8:212.09:311.41:530.43:060.16:587:56Full Moon16Sun
17Mon8:592.110:001.52:360.43:390.16:587:55Full Moon17Mon
18Tue9:372.110:281.63:160.34:110.16:587:55Full Moon18Tue
19Wed10:132.010:571.63:530.34:410.26:597:54Full Moon19Wed
20Thu10:502.011:271.74:310.35:110.26:597:53Waning Gibbous20Thu
21Fri11:271.911:591.85:080.35:400.27:007:52Waning Gibbous21Fri
22Sat12:071.85:490.36:100.37:007:51Waning Gibbous22Sat
23Sun12:321.812:491.76:350.36:410.37:007:50Waning Gibbous23Sun
24Mon1:071.81:381.57:290.37:170.47:017:49Third Quarter24Mon
25Tue1:471.82:391.48:320.38:010.57:017:48Third Quarter25Tue
26Wed2:371.94:001.39:430.38:560.57:027:47Third Quarter26Wed
27Thu3:391.95:291.210:540.210:030.57:027:46Third Quarter27Thu
28Fri4:502.06:401.312:010.27:027:45Waning Crescent28Fri
29Sat5:592.27:351.41:000.17:037:44Waning Crescent29Sat
30Sun7:032.38:211.512:200.41:530.17:037:43Waning Crescent30Sun
31Mon8:012.49:041.71:210.42:390.17:047:42New Moon31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723879)

Common Questions About Long Key Bight, Long Key, FL Tides

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

Slack tide in Long Key Bight, Long Key, FL is approximately 8:24 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 Bight, Long Key, FL?

Long Key Bight, Long Key, FL is currently in a transitional phase. Tonight's moon is 65% 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 Bight, Long Key, 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 Bight, Long Key, FL?

Tide predictions for Long Key Bight, Long Key, 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 Bight, Long Key, FL?

Tide data for Long Key Bight, Long Key, FL is sourced from NOAA Station #8723879. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8723879.

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

Tonight the moon over Long Key Bight, Long Key, FL is First Quarter (65% illuminated). This places Long Key Bight, Long Key, 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