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

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Long Key Bight, Long Key, FL.
Next low tide : in 7h 03m at 10:15 am (0.2 ft)
Next high tide : 4:46 pm (1.0 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 6:59 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #8723879
Common Questions About Tides

Long Key Bight, Long Key, FL Tides - Sep 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:412.49:041.512:510.52:380.17:037:42Waning Crescent1Sun
2Mon8:382.59:391.61:530.43:200.17:047:41New Moon2Mon
3Tue9:312.510:131.82:490.33:570.27:047:40New Moon3Tue
4Wed10:202.410:462.03:420.24:330.27:057:39New Moon4Wed
5Thu11:062.311:192.14:330.25:070.37:057:38Waxing Crescent5Thu
6Fri11:512.111:532.15:240.25:410.47:057:37Waxing Crescent6Fri
7Sat12:361.86:160.26:150.57:067:36Waxing Crescent7Sat
8Sun12:272.11:231.67:110.36:500.57:067:35Waxing Crescent8Sun
9Mon1:052.12:181.48:120.37:270.67:067:34First Quarter9Mon
10Tue1:482.03:391.29:200.38:110.67:077:33First Quarter10Tue
11Wed2:422.05:541.210:330.39:160.77:077:32First Quarter11Wed
12Thu3:511.97:141.211:450.310:370.77:087:31First Quarter12Thu
13Fri5:071.97:471.312:470.37:087:29Waxing Gibbous13Fri
14Sat6:132.08:101.41:350.37:087:28Waxing Gibbous14Sat
15Sun7:072.18:321.612:460.62:120.37:097:27Waxing Gibbous15Sun
16Mon7:542.28:561.71:330.62:430.37:097:26Waxing Gibbous16Mon
17Tue8:372.39:211.82:150.53:110.37:097:25Full Moon17Tue
18Wed9:192.39:482.02:550.43:380.37:107:24Full Moon18Wed
19Thu10:012.310:162.13:340.44:040.47:107:23Full Moon19Thu
20Fri10:432.210:452.24:140.34:320.47:107:22Full Moon20Fri
21Sat11:282.111:172.34:580.25:000.57:117:21Waning Gibbous21Sat
22Sun12:151.95:450.25:310.57:117:20Waning Gibbous22Sun
23Mon1:081.66:390.26:040.67:127:19Waning Gibbous23Mon
24Tue12:312.32:131.47:420.26:430.67:127:18Third Quarter24Tue
25Wed1:212.33:411.38:550.27:340.77:127:17Third Quarter25Wed
26Thu2:272.35:221.310:160.28:520.77:137:16Third Quarter26Thu
27Fri3:552.36:321.411:330.310:260.77:137:14Third Quarter27Fri
28Sat5:242.37:191.512:390.37:137:13Waning Crescent28Sat
29Sun5:392.46:561.712:300.36:146:12Waning Crescent29Sun
30Mon6:412.57:301.91:110.36:146:11Waning Crescent30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723879)

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

Show All
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 1:30 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 55% 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 (55% 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