Tides Today & Tomorrow in Long Key, western end, FL

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Long Key, western end, FL.
Next low tide : in 2h 05m at 8:53 am (0.1 ft)
Next high tide : 2:57 pm (0.9 ft)
Sunset today : 7:54 pm
Sunrise tomorrow : 6:59 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8723899
Common Questions About Tides

Long Key, western end, FL Tides - Jul 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:151.610:150.71:250.13:21-0.16:388:17Full Moon1Wed
2Thu9:031.610:540.72:140.14:04-0.16:388:17Full Moon2Thu
3Fri9:481.611:290.83:010.14:44-0.16:388:17Full Moon3Fri
4Sat10:311.63:480.15:23-0.16:398:17Waning Gibbous4Sat
5Sun12:020.811:13 AM1.54:350.26:020.06:398:16Waning Gibbous5Sun
6Mon12:340.911:53 AM1.45:250.26:400.06:408:16Waning Gibbous6Mon
7Tue1:061.012:351.36:190.27:160.16:408:16Waning Gibbous7Tue
8Wed1:391.11:191.27:200.27:520.16:408:16Third Quarter8Wed
9Thu2:141.12:101.08:250.28:260.16:418:16Third Quarter9Thu
10Fri2:511.23:120.99:330.18:590.26:418:16Third Quarter10Fri
11Sat3:331.24:330.810:380.19:340.26:428:16Third Quarter11Sat
12Sun4:191.36:030.711:400.110:150.26:428:16Waning Crescent12Sun
13Mon5:091.37:210.712:380.06:438:15Waning Crescent13Mon
14Tue6:011.48:210.71:300.06:438:15Waning Crescent14Tue
15Wed6:541.59:080.72:18-0.16:438:15Waning Crescent15Wed
16Thu7:471.69:500.812:500.23:02-0.16:448:15New Moon16Thu
17Fri8:391.710:290.81:440.23:45-0.16:448:14New Moon17Fri
18Sat9:321.811:060.92:370.14:27-0.16:458:14New Moon18Sat
19Sun10:241.811:431.03:310.15:08-0.16:458:14New Moon19Sun
20Mon11:171.74:270.15:480.06:468:13Waxing Crescent20Mon
21Tue12:211.112:101.65:270.16:290.06:468:13Waxing Crescent21Tue
22Wed12:591.31:061.46:320.17:090.16:478:13Waxing Crescent22Wed
23Thu1:401.42:081.27:440.17:510.16:478:12First Quarter23Thu
24Fri2:251.43:231.08:590.18:340.26:488:12First Quarter24Fri
25Sat3:171.54:550.810:160.09:220.26:488:11First Quarter25Sat
26Sun4:161.56:300.711:310.010:160.26:498:11Waxing Gibbous26Sun
27Mon5:191.67:440.712:420.06:498:10Waxing Gibbous27Mon
28Tue6:221.68:390.71:420.06:498:10Waxing Gibbous28Tue
29Wed7:191.69:210.812:170.22:310.06:508:09Waxing Gibbous29Wed
30Thu8:111.69:550.81:150.23:120.06:508:09Full Moon30Thu
31Fri8:571.710:260.92:080.23:470.06:518:08Full Moon31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723899)

Common Questions About Long Key, western end, FL Tides

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What time does the tide turn (slack tide) in Long Key, western end, FL today?

Slack tide in Long Key, western end, FL is approximately 11:55 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, western end, FL?

Long Key, western end, FL is currently in a neap phase. Tonight's moon is 46% 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, western end, 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, western end, FL?

Tide predictions for Long Key, western end, 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, western end, FL?

Tide data for Long Key, western end, FL is sourced from NOAA Station #8723899. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8723899.

What is the moon phase in Long Key, western end, FL tonight?

Tonight the moon over Long Key, western end, FL is First Quarter (46% illuminated). This places Long Key, western end, 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