Tides Today & Tomorrow in Vaca Key, Florida Bay, FL

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Vaca Key, Florida Bay, FL.
Next low tide : in 1h 42m at 10:48 pm (0.4 ft)
Next high tide (tomorrow) : 5:48 am (1.0 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:53 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8723970
Common Questions About Tides

Vaca Key, Florida Bay, FL Tides - Oct 1966

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:411.24:411.28:110.58:200.97:167:11Full Moon1Sat
2Sun3:131.35:141.18:530.48:550.97:167:10Waning Gibbous2Sun
3Mon3:491.35:511.19:370.39:310.97:177:09Waning Gibbous3Mon
4Tue4:261.37:271.010:250.210:050.97:177:08Waning Gibbous4Tue
5Wed5:041.311:150.27:177:07Waning Gibbous5Wed
6Thu5:431.412:100.27:187:06Third Quarter6Thu
7Fri6:261.41:090.27:187:05Third Quarter7Fri
8Sat7:171.42:130.37:197:04Third Quarter8Sat
9Sun8:201.43:190.57:197:03Waning Crescent9Sun
10Mon9:331.44:200.67:207:02Waning Crescent10Mon
11Tue1:471.111:00 AM1.44:071.05:110.77:207:01Waning Crescent11Tue
12Wed2:111.11:411.45:100.95:540.97:207:01New Moon12Wed
13Thu2:281.22:561.46:060.76:321.07:217:00New Moon13Thu
14Fri2:201.33:571.46:580.67:081.07:216:59New Moon14Fri
15Sat2:061.44:551.37:490.57:451.17:226:58New Moon15Sat
16Sun2:351.55:521.28:400.38:221.07:226:57Waxing Crescent16Sun
17Mon3:151.56:521.19:310.39:011.07:236:56Waxing Crescent17Mon
18Tue3:591.510:230.27:236:55Waxing Crescent18Tue
19Wed4:451.511:160.27:246:54First Quarter19Wed
20Thu5:331.412:110.27:246:53First Quarter20Thu
21Fri6:241.31:080.37:256:52First Quarter21Fri
22Sat7:201.311:541.02:090.47:256:52First Quarter22Sat
23Sun8:221.22:090.93:120.57:266:51Waxing Gibbous23Sun
24Mon12:311.19:36 AM1.13:540.94:100.77:266:50Waxing Gibbous24Mon
25Tue1:041.112:471.15:110.84:550.87:276:49Waxing Gibbous25Tue
26Wed1:321.21:521.25:430.85:300.97:276:48Waxing Gibbous26Wed
27Thu1:461.22:471.26:090.76:020.97:286:48Full Moon27Thu
28Fri12:381.23:371.26:390.66:331.07:296:47Full Moon28Fri
29Sat1:061.34:251.27:130.57:061.07:296:46Full Moon29Sat
30Sun1:431.34:131.26:500.46:401.06:305:46Full Moon30Sun
31Mon1:231.45:021.17:310.37:141.06:305:45Waning Gibbous31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723970)

Common Questions About Vaca Key, Florida Bay, FL Tides

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What time does the tide turn (slack tide) in Vaca Key, Florida Bay, FL today?

Slack tide in Vaca Key, Florida Bay, FL is approximately 2:18 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 Vaca Key, Florida Bay, FL?

Vaca Key, Florida Bay, FL is currently in a transitional phase. Tonight's moon is 75% 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 Vaca Key, Florida Bay, 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 Vaca Key, Florida Bay, FL?

Tide predictions for Vaca Key, Florida Bay, 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 Vaca Key, Florida Bay, FL?

Tide data for Vaca Key, Florida Bay, FL is sourced from NOAA Station #8723970. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8723970.

What is the moon phase in Vaca Key, Florida Bay, FL tonight?

Tonight the moon over Vaca Key, Florida Bay, FL is Waning Gibbous (75% illuminated). This places Vaca Key, Florida Bay, 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