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

TIDE TIMES for Saturday, August 15, 2026
The tide is currently falling in Long Key Bight, Long Key, FL.
Next low tide : in 1h 07m at 5:06 am (0.2 ft)
Next high tide : 11:36 am (2.0 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 6:57 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8723879
Common Questions About Tides

Long Key Bight, Long Key, FL Tides - Sep 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:522.49:321.92:150.33:130.17:047:42New Moon1Sun
2Mon9:432.410:112.03:070.23:520.27:047:41New Moon2Mon
3Tue10:342.310:522.13:580.14:310.27:047:40New Moon3Tue
4Wed11:242.211:342.24:500.15:110.37:057:39Waxing Crescent4Wed
5Thu12:162.05:450.15:530.37:057:38Waxing Crescent5Thu
6Fri12:182.31:111.76:440.16:380.47:057:37Waxing Crescent6Fri
7Sat1:072.32:131.57:500.27:290.57:067:35First Quarter7Sat
8Sun2:032.23:291.49:010.28:300.57:067:34First Quarter8Sun
9Mon3:102.14:581.410:160.39:400.67:077:33First Quarter9Mon
10Tue4:262.16:151.411:280.310:540.67:077:32Waxing Gibbous10Tue
11Wed5:402.17:101.512:310.37:077:31Waxing Gibbous11Wed
12Thu6:432.17:521.612:020.51:210.37:087:30Waxing Gibbous12Thu
13Fri7:362.28:271.71:010.52:020.37:087:29Waxing Gibbous13Fri
14Sat8:212.28:571.81:520.42:370.37:087:28Full Moon14Sat
15Sun9:002.29:241.92:360.43:090.37:097:27Full Moon15Sun
16Mon9:362.19:512.03:160.43:400.47:097:26Full Moon16Mon
17Tue10:112.110:192.13:530.34:100.47:097:25Full Moon17Tue
18Wed10:472.010:492.14:300.34:380.47:107:24Full Moon18Wed
19Thu11:231.911:202.15:060.35:060.57:107:23Waning Gibbous19Thu
20Fri12:011.85:450.35:330.57:117:22Waning Gibbous20Fri
21Sat12:431.76:270.36:020.57:117:21Waning Gibbous21Sat
22Sun12:302.11:311.67:160.46:360.67:117:19Waning Gibbous22Sun
23Mon1:112.12:311.58:150.47:210.67:127:18Third Quarter23Mon
24Tue2:032.13:481.49:220.48:260.77:127:17Third Quarter24Tue
25Wed3:112.05:061.510:310.49:470.77:127:16Third Quarter25Wed
26Thu4:292.16:071.611:340.411:050.67:137:15Waning Crescent26Thu
27Fri5:442.26:551.712:280.47:137:14Waning Crescent27Fri
28Sat6:492.37:371.912:130.51:150.37:147:13Waning Crescent28Sat
29Sun6:472.47:162.11:120.412:590.36:146:12Waning Crescent29Sun
30Mon7:412.47:562.31:060.31:390.36:146:11New Moon30Mon
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 8:21 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 11% 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 (11% 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