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

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Long Key Bight, Long Key, FL.
Next low tide : in 5h 59m at 6:00 am (0.2 ft)
Next high tide : 12:21 pm (1.8 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:57 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8723879
Common Questions About Tides

Long Key Bight, Long Key, FL Tides - Feb 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:010.86:221.712:24-0.311:39 AM0.17:056:07Waxing Gibbous1Wed
2Thu7:470.97:191.81:15-0.312:390.07:056:08Waxing Gibbous2Thu
3Fri8:291.08:131.92:02-0.41:35-0.17:046:09Full Moon3Fri
4Sat9:091.29:051.92:45-0.42:28-0.27:046:10Full Moon4Sat
5Sun9:481.39:561.83:26-0.33:21-0.27:036:10Full Moon5Sun
6Mon10:271.410:451.64:07-0.34:14-0.27:036:11Waning Gibbous6Mon
7Tue11:071.511:351.44:48-0.25:10-0.27:026:12Waning Gibbous7Tue
8Wed11:491.55:29-0.16:10-0.27:026:12Waning Gibbous8Wed
9Thu12:271.112:341.56:120.07:15-0.17:016:13Third Quarter9Thu
10Fri1:270.91:251.47:000.18:26-0.17:016:14Third Quarter10Fri
11Sat2:450.72:261.37:540.19:40-0.17:006:14Third Quarter11Sat
12Sun4:260.63:381.38:580.210:52-0.16:596:15Third Quarter12Sun
13Mon5:490.64:481.310:070.211:56-0.16:596:16Waning Crescent13Mon
14Tue6:440.75:481.311:120.26:586:16Waning Crescent14Tue
15Wed7:220.86:371.412:45-0.112:090.16:576:17Waning Crescent15Wed
16Thu7:510.97:191.41:25-0.112:570.16:576:17Waning Crescent16Thu
17Fri8:181.07:581.51:58-0.21:390.06:566:18New Moon17Fri
18Sat8:431.18:351.52:29-0.22:170.06:556:19New Moon18Sat
19Sun9:101.29:111.52:58-0.12:530.06:546:19New Moon19Sun
20Mon9:381.29:481.43:25-0.13:28-0.16:546:20New Moon20Mon
21Tue10:071.310:251.33:52-0.14:04-0.16:536:20Waxing Crescent21Tue
22Wed10:371.411:041.24:19-0.14:44-0.16:526:21Waxing Crescent22Wed
23Thu11:091.411:471.14:480.05:28-0.16:516:21Waxing Crescent23Thu
24Fri11:431.45:190.06:20-0.16:506:22Waxing Crescent24Fri
25Sat12:360.912:231.45:540.17:23-0.16:496:23First Quarter25Sat
26Sun1:390.71:141.46:390.18:34-0.16:496:23First Quarter26Sun
27Mon3:060.62:241.47:400.29:49-0.16:486:24First Quarter27Mon
28Tue4:370.63:481.48:580.211:00-0.26:476:24First Quarter28Tue
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 9:10 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 Long Key Bight, Long Key, FL?

Long Key Bight, Long Key, FL is currently in a spring phase. Tonight's moon is 18% 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 maximum.

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 Waxing Crescent (18% illuminated). This places Long Key Bight, Long Key, FL in a spring tide cycle, so tidal ranges are near their weekly maximum 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