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 1h 15m 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 - Sep 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:102.03:351.29:260.38:390.57:037:42First Quarter1Thu
2Fri3:091.95:151.210:360.39:470.67:047:41First Quarter2Fri
3Sat4:191.96:331.211:440.310:570.67:047:40First Quarter3Sat
4Sun5:281.97:181.312:410.37:057:39Waxing Gibbous4Sun
5Mon6:272.07:501.412:000.61:270.37:057:38Waxing Gibbous5Mon
6Tue7:172.18:171.612:550.52:040.37:057:37Waxing Gibbous6Tue
7Wed8:012.18:451.71:410.52:350.37:067:36Waxing Gibbous7Wed
8Thu8:422.19:131.82:220.43:040.37:067:35Full Moon8Thu
9Fri9:222.29:431.93:000.43:320.37:067:34Full Moon9Fri
10Sat10:022.110:142.03:380.33:590.37:077:33Full Moon10Sat
11Sun10:432.010:462.14:160.24:280.47:077:32Full Moon11Sun
12Mon11:251.911:202.24:570.24:580.47:077:31Waning Gibbous12Mon
13Tue12:101.85:430.25:300.47:087:30Waning Gibbous13Tue
14Wed1:001.66:340.26:070.57:087:29Waning Gibbous14Wed
15Thu12:402.21:581.57:340.26:510.57:097:28Third Quarter15Thu
16Fri1:322.23:131.48:440.37:490.67:097:26Third Quarter16Fri
17Sat2:382.24:391.49:590.39:060.67:097:25Third Quarter17Sat
18Sun3:592.25:521.411:110.310:300.67:107:24Third Quarter18Sun
19Mon5:222.26:471.612:140.37:107:23Waning Crescent19Mon
20Tue6:342.37:321.81:070.37:107:22Waning Crescent20Tue
21Wed7:352.48:122.012:530.41:520.37:117:21Waning Crescent21Wed
22Thu8:302.48:492.11:510.32:320.37:117:20New Moon22Thu
23Fri9:202.39:262.32:430.23:100.47:117:19New Moon23Fri
24Sat10:072.210:032.43:320.23:470.47:127:18New Moon24Sat
25Sun9:512.19:392.43:190.13:230.46:126:17Waxing Crescent25Sun
26Mon10:341.910:172.44:060.23:590.56:136:16Waxing Crescent26Mon
27Tue11:161.810:552.34:530.24:360.56:136:15Waxing Crescent27Tue
28Wed12:001.65:440.35:150.66:136:14Waxing Crescent28Wed
29Thu12:491.56:400.35:590.66:146:13First Quarter29Thu
30Fri12:232.11:531.47:420.46:570.76:146:12First Quarter30Fri
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 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