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

TIDE TIMES for Saturday, August 22, 2026
The tide is currently rising in Vaca Key, Florida Bay, FL.
Next low tide (tomorrow) : 4:54 pm (0.1 ft)
Next high tide (tomorrow) : in 2h 51m at 1:42 am (0.7 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 7:01 am
Moon phase : Waxing Gibbous (73% illuminated)
Tide Station Location : Station #8723970
Common Questions About Tides

Vaca Key, Florida Bay, FL Tides - Feb 1932

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:320.71:54-0.47:076:09Waning Crescent1Mon
2Tue8:240.73:04-0.57:066:09Waning Crescent2Tue
3Wed9:210.77:21-0.47:066:10Waning Crescent3Wed
4Thu10:240.78:23-0.47:056:11Waning Crescent4Thu
5Fri11:370.79:12-0.37:056:11New Moon5Fri
6Sat3:300.36:15-0.35:380.27:046:12New Moon6Sat
7Sun12:550.63:560.36:51-0.26:320.27:046:13New Moon7Sun
8Mon1:580.64:150.47:29-0.27:260.17:036:13Waxing Crescent8Mon
9Tue2:480.64:010.48:07-0.18:190.07:026:14Waxing Crescent9Tue
10Wed3:320.53:530.58:45-0.19:12-0.17:026:15Waxing Crescent10Wed
11Thu4:140.44:170.59:23-0.110:04-0.27:016:15Waxing Crescent11Thu
12Fri4:590.34:510.610:000.010:57-0.47:016:16First Quarter12Fri
13Sat5:480.15:280.610:350.011:51-0.47:006:17First Quarter13Sat
14Sun6:080.56:596:17First Quarter14Sun
15Mon6:510.512:46-0.56:596:18First Quarter15Mon
16Tue7:370.51:45-0.56:586:19First Quarter16Tue
17Wed8:260.62:46-0.56:576:19Waxing Gibbous17Wed
18Thu9:180.63:44-0.56:566:20Waxing Gibbous18Thu
19Fri10:190.74:35-0.46:566:20Waxing Gibbous19Fri
20Sat11:330.75:20-0.36:556:21Full Moon20Sat
21Sun3:200.36:02-0.35:310.26:546:21Full Moon21Sun
22Mon12:540.73:350.46:41-0.16:260.16:536:22Full Moon22Mon
23Tue2:070.73:360.47:20-0.17:220.06:526:23Full Moon23Tue
24Wed3:090.63:300.57:580.08:19-0.26:526:23Waning Gibbous24Wed
25Thu4:060.53:460.68:350.19:17-0.36:516:24Waning Gibbous25Thu
26Fri5:060.34:140.79:110.110:16-0.56:506:24Waning Gibbous26Fri
27Sat7:120.24:490.79:440.111:17-0.56:496:25Third Quarter27Sat
28Sun5:300.76:486:25Third Quarter28Sun
29Mon6:170.712:21-0.56:476:26Third Quarter29Mon
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 9:18 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 73% 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 Waxing Gibbous (73% 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