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

TIDE TIMES for Sunday, August 23, 2026
The tide is currently rising in Long Key, western end, FL.
Next low tide (tomorrow) : 12:03 am (0.3 ft)
Next high tide : in 6h 18m at 8:16 pm (0.9 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 7:01 am
Moon phase : Waxing Gibbous (81% illuminated)
Tide Station Location : Station #8723899
Common Questions About Tides

Long Key, western end, FL Tides - Feb 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:270.73:301.18:520.010:160.08:067:07First Quarter1Tue
2Wed4:580.64:351.19:480.111:31-0.18:057:08First Quarter2Wed
3Thu6:270.65:411.110:480.18:057:09Waxing Gibbous3Thu
4Fri7:340.66:401.112:39-0.111:48 AM0.18:047:10Waxing Gibbous4Fri
5Sat8:240.67:311.21:35-0.112:450.18:047:10Waxing Gibbous5Sat
6Sun9:030.68:151.22:20-0.11:350.18:037:11Waxing Gibbous6Sun
7Mon9:350.78:561.22:58-0.12:200.08:037:12Full Moon7Mon
8Tue10:040.79:331.23:32-0.13:010.08:027:12Full Moon8Tue
9Wed10:310.810:091.24:04-0.13:390.08:017:13Full Moon9Wed
10Thu10:580.810:441.24:36-0.14:160.08:017:14Full Moon10Thu
11Fri11:270.911:201.25:06-0.14:520.08:007:14Waning Gibbous11Fri
12Sat11:570.911:571.15:36-0.15:310.08:007:15Waning Gibbous12Sat
13Sun12:281.06:050.06:140.07:597:16Waning Gibbous13Sun
14Mon12:371.01:001.06:340.07:030.07:587:16Waning Gibbous14Mon
15Tue1:210.81:361.07:050.08:020.07:587:17Third Quarter15Tue
16Wed2:160.72:191.07:420.19:100.07:577:17Third Quarter16Wed
17Thu3:340.63:141.08:290.110:23-0.17:567:18Third Quarter17Thu
18Fri5:140.54:231.19:320.111:35-0.17:557:19Third Quarter18Fri
19Sat6:390.55:361.210:440.17:557:19Waning Crescent19Sat
20Sun7:380.66:441.312:39-0.111:54 AM0.17:547:20Waning Crescent20Sun
21Mon8:250.77:441.41:35-0.212:570.07:537:20Waning Crescent21Mon
22Tue9:060.88:401.52:24-0.21:550.07:527:21New Moon22Tue
23Wed9:450.99:341.53:09-0.22:48-0.17:517:22New Moon23Wed
24Thu10:231.010:261.53:51-0.23:40-0.17:517:22New Moon24Thu
25Fri11:001.111:161.44:32-0.14:33-0.17:507:23Waxing Crescent25Fri
26Sat11:381.25:12-0.15:27-0.17:497:23Waxing Crescent26Sat
27Sun12:071.212:171.25:52-0.16:24-0.17:487:24Waxing Crescent27Sun
28Mon12:591.112:591.26:340.07:26-0.17:477:24Waxing Crescent28Mon
29Tue1:560.81:451.27:180.08:34-0.17:467:25First Quarter29Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723899)

Common Questions About Long Key, western end, FL Tides

Show All
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 10:09 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, western end, FL?

Long Key, western end, FL is currently in a spring phase. Tonight's moon is 81% 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, 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 Waxing Gibbous (81% illuminated). This places Long Key, western end, 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