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 3h 16m at 6:15 pm (0.3 ft)
Next high tide (tomorrow) : 12:29 am (1.9 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 - Oct 1937

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:292.36:572.012:380.46:156:10Waning Crescent1Fri
2Sat7:212.27:312.212:450.41:140.46:156:09New Moon2Sat
3Sun8:062.28:032.31:330.31:490.56:156:08New Moon3Sun
4Mon8:472.18:342.32:160.32:210.56:166:07New Moon4Mon
5Tue9:252.09:042.42:570.22:530.56:166:06New Moon5Tue
6Wed10:011.99:362.33:370.23:250.56:176:05Waxing Crescent6Wed
7Thu10:371.810:102.34:170.23:550.66:176:04Waxing Crescent7Thu
8Fri11:151.710:462.34:590.34:250.66:186:03Waxing Crescent8Fri
9Sat11:571.611:262.25:440.34:550.66:186:02Waxing Crescent9Sat
10Sun12:471.56:370.45:290.76:186:01First Quarter10Sun
11Mon12:132.11:511.47:380.46:220.76:196:00First Quarter11Mon
12Tue1:102.03:071.58:420.57:500.86:195:59First Quarter12Tue
13Wed2:212.04:131.69:440.59:200.76:205:58First Quarter13Wed
14Thu3:382.05:001.710:360.510:300.76:205:57Waxing Gibbous14Thu
15Fri4:492.15:371.911:200.511:280.66:215:56Waxing Gibbous15Fri
16Sat5:492.16:122.011:590.56:215:56Waxing Gibbous16Sat
17Sun6:432.16:472.212:180.412:350.56:225:55Waxing Gibbous17Sun
18Mon7:342.17:232.41:050.31:100.56:225:54Full Moon18Mon
19Tue8:242.18:012.51:510.11:460.56:235:53Full Moon19Tue
20Wed9:132.08:422.62:380.02:230.56:235:52Full Moon20Wed
21Thu10:021.99:272.63:260.03:010.56:245:51Waning Gibbous21Thu
22Fri10:531.710:152.64:160.03:430.56:245:50Waning Gibbous22Fri
23Sat11:461.611:082.55:110.14:290.56:255:49Waning Gibbous23Sat
24Sun12:441.56:110.15:240.66:255:49Waning Gibbous24Sun
25Mon12:082.41:491.57:160.26:350.66:265:48Third Quarter25Mon
26Tue1:182.33:001.68:250.38:020.66:265:47Third Quarter26Tue
27Wed2:412.14:061.79:290.49:290.66:275:46Third Quarter27Wed
28Thu4:062.14:591.910:260.510:440.56:285:46Waning Crescent28Thu
29Fri5:202.05:432.011:150.511:470.46:285:45Waning Crescent29Fri
30Sat6:212.06:202.211:580.56:295:44Waning Crescent30Sat
31Sun7:121.96:552.212:400.312:360.56:295:44Waning Crescent31Sun
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 9:22 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 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