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

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Long Key Bight, Long Key, FL.
Next low tide : 11:29 am (0.2 ft)
Next high tide : in 1h 58m at 3:33 am (1.8 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 7:00 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8723879
Common Questions About Tides

Long Key Bight, Long Key, FL Tides - May 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:441.89:411.42:220.23:10-0.16:477:53Full Moon1Thu
2Fri9:171.910:211.32:590.23:50-0.26:467:53Full Moon2Fri
3Sat9:491.910:591.33:340.24:29-0.26:457:54Full Moon3Sat
4Sun10:221.911:361.24:080.25:08-0.26:457:54Full Moon4Sun
5Mon10:551.84:420.25:48-0.16:447:55Waning Gibbous5Mon
6Tue12:141.111:31 AM1.75:160.36:30-0.16:437:55Waning Gibbous6Tue
7Wed12:551.112:091.75:510.37:150.06:437:56Waning Gibbous7Wed
8Thu1:401.112:521.66:330.48:050.06:427:56Waning Gibbous8Thu
9Fri2:321.11:411.57:300.48:590.16:417:57Third Quarter9Fri
10Sat3:311.12:421.48:470.49:530.16:417:57Third Quarter10Sat
11Sun4:301.23:571.310:070.410:440.16:407:58Third Quarter11Sun
12Mon5:211.35:141.311:160.311:320.26:407:58Third Quarter12Mon
13Tue6:041.46:231.312:140.26:397:59Waning Crescent13Tue
14Wed6:441.67:241.312:170.21:060.16:398:00Waning Crescent14Wed
15Thu7:231.78:201.412:590.21:54-0.16:388:00Waning Crescent15Thu
16Fri8:031.99:131.41:410.22:41-0.26:388:01New Moon16Fri
17Sat8:452.010:041.32:220.23:27-0.36:378:01New Moon17Sat
18Sun9:282.110:541.33:030.24:15-0.36:378:02New Moon18Sun
19Mon10:142.111:451.33:460.25:04-0.46:378:02New Moon19Mon
20Tue11:032.14:320.25:56-0.36:368:03Waxing Crescent20Tue
21Wed12:361.211:55 AM2.05:220.26:50-0.26:368:03Waxing Crescent21Wed
22Thu1:301.212:511.96:200.27:48-0.26:358:04Waxing Crescent22Thu
23Fri2:271.21:541.77:300.38:48-0.16:358:04First Quarter23Fri
24Sat3:281.33:081.58:510.39:460.06:358:05First Quarter24Sat
25Sun4:291.44:301.410:120.310:420.16:358:05First Quarter25Sun
26Mon5:251.55:501.311:270.211:330.26:348:06Waxing Gibbous26Mon
27Tue6:141.66:591.312:320.16:348:06Waxing Gibbous27Tue
28Wed6:571.77:571.212:210.21:270.06:348:07Waxing Gibbous28Wed
29Thu7:361.88:461.21:050.22:15-0.16:348:07Waxing Gibbous29Thu
30Fri8:121.89:291.21:460.22:56-0.16:338:07Full Moon30Fri
31Sat8:461.910:081.12:250.23:35-0.16:338:08Full Moon31Sat
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 7:31 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 transitional phase. Tonight's moon is 65% 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 shifting between spring and neap.

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 (65% illuminated). This places Long Key Bight, Long Key, FL in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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