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

TIDE TIMES for Monday, July 20, 2026
The tide is currently falling in Long Key Bight, Long Key, FL.
Next low tide : in 5h 21m at 8:23 pm (0.3 ft)
Next high tide (tomorrow) : 2:44 am (1.7 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:45 am
Moon phase : First Quarter (42% illuminated)
Tide Station Location : Station #8723879
Common Questions About Tides

Long Key Bight, Long Key, FL Tides - Sep 1981

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:312.011:501.95:100.35:390.37:047:42Waxing Crescent1Tue
2Wed12:101.95:560.36:130.47:047:41Waxing Crescent2Wed
3Thu12:221.912:501.76:440.36:470.47:047:40Waxing Crescent3Thu
4Fri12:571.91:351.57:380.47:230.57:057:39First Quarter4Fri
5Sat1:361.92:301.48:390.48:020.67:057:37First Quarter5Sat
6Sun2:231.93:481.39:460.48:520.67:067:36First Quarter6Sun
7Mon3:211.95:271.310:550.49:570.67:067:35First Quarter7Mon
8Tue4:291.96:401.311:580.311:050.67:067:34Waxing Gibbous8Tue
9Wed5:362.07:261.412:520.37:077:33Waxing Gibbous9Wed
10Thu6:352.18:021.512:060.61:370.37:077:32Waxing Gibbous10Thu
11Fri7:272.28:361.612:590.62:150.27:077:31Waxing Gibbous11Fri
12Sat8:162.39:101.81:470.52:510.27:087:30Full Moon12Sat
13Sun9:042.49:431.92:330.43:250.27:087:29Full Moon13Sun
14Mon9:512.410:182.13:190.34:000.37:087:28Full Moon14Mon
15Tue10:392.310:542.24:050.24:350.37:097:27Full Moon15Tue
16Wed11:282.211:322.34:540.25:120.47:097:26Waning Gibbous16Wed
17Thu12:192.05:470.25:500.47:107:25Waning Gibbous17Thu
18Fri12:132.31:151.86:450.26:320.57:107:24Waning Gibbous18Fri
19Sat12:592.32:201.67:510.27:210.67:107:23Third Quarter19Sat
20Sun1:542.33:411.59:040.28:210.67:117:22Third Quarter20Sun
21Mon3:022.25:111.410:210.39:350.67:117:20Third Quarter21Mon
22Tue4:232.26:241.511:350.310:530.67:117:19Waning Crescent22Tue
23Wed5:422.27:181.612:380.37:127:18Waning Crescent23Wed
24Thu6:492.37:591.712:050.61:300.37:127:17Waning Crescent24Thu
25Fri7:462.38:351.91:070.52:120.37:127:16Waning Crescent25Fri
26Sat8:352.39:072.02:000.42:480.37:137:15New Moon26Sat
27Sun9:182.39:372.12:470.43:220.47:137:14New Moon27Sun
28Mon9:582.210:062.23:300.33:540.47:147:13New Moon28Mon
29Tue10:352.110:342.24:100.34:260.47:147:12New Moon29Tue
30Wed11:112.011:042.24:500.34:560.57:147:11Waxing Crescent30Wed
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 11:33 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 neap phase. Tonight's moon is 42% 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 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 (42% illuminated). This places Long Key Bight, Long Key, 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