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

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in Vaca Key, Florida Bay, FL.
Next low tide : 9:30 pm (0.3 ft)
Next high tide : in 4h 49m at 4:00 pm (1.0 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 6:52 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8723970
Common Questions About Tides

Vaca Key, Florida Bay, FL Tides - Apr 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:440.26:000.611:100.17:147:41Third Quarter1Fri
2Sat10:000.26:460.612:15-0.412:010.17:137:41Third Quarter2Sat
3Sun7:380.51:09-0.37:127:41Third Quarter3Sun
4Mon11:590.38:340.42:04-0.32:100.27:117:42Third Quarter4Mon
5Tue12:430.33:02-0.23:220.27:107:42Waning Crescent5Tue
6Wed1:200.43:57-0.14:240.27:097:43Waning Crescent6Wed
7Thu1:520.44:450.05:110.17:087:43Waning Crescent7Thu
8Fri1:500.52:140.55:270.15:520.17:087:44Waning Crescent8Fri
9Sat2:440.51:370.56:050.26:320.07:077:44New Moon9Sat
10Sun3:320.61:510.66:430.27:14-0.17:067:44New Moon10Sun
11Mon4:170.62:260.77:220.37:58-0.27:057:45New Moon11Mon
12Tue5:020.53:050.78:010.38:44-0.37:047:45New Moon12Tue
13Wed5:480.53:450.88:410.39:32-0.47:037:46Waxing Crescent13Wed
14Thu6:390.44:260.89:230.310:22-0.47:027:46Waxing Crescent14Thu
15Fri7:440.45:080.810:070.311:14-0.47:017:47Waxing Crescent15Fri
16Sat5:530.87:007:47First Quarter16Sat
17Sun6:420.812:08-0.36:597:47First Quarter17Sun
18Mon7:380.71:05-0.26:587:48First Quarter18Mon
19Tue11:490.48:440.62:04-0.12:130.36:577:48Waxing Gibbous19Tue
20Wed12:290.53:030.03:280.26:567:49Waxing Gibbous20Wed
21Thu12:120.51:060.63:590.14:360.16:567:49Waxing Gibbous21Thu
22Fri1:290.61:380.64:490.25:340.16:557:50Waxing Gibbous22Fri
23Sat2:300.62:010.75:350.36:230.06:547:50Full Moon23Sat
24Sun3:230.61:370.76:170.37:08-0.16:537:51Full Moon24Sun
25Mon4:130.61:570.86:580.37:52-0.26:527:51Full Moon25Mon
26Tue5:000.62:360.87:400.38:35-0.36:527:52Full Moon26Tue
27Wed5:460.53:180.88:220.39:19-0.36:517:52Waning Gibbous27Wed
28Thu6:310.44:010.89:050.310:04-0.36:507:53Waning Gibbous28Thu
29Fri7:180.44:450.89:510.310:51-0.36:497:53Waning Gibbous29Fri
30Sat8:120.45:300.710:390.311:38-0.36:497:54Waning Gibbous30Sat
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 6:45 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 Vaca Key, Florida Bay, FL?

Vaca Key, Florida Bay, FL is currently in a spring phase. Tonight's moon is 91% 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 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 (91% illuminated). This places Vaca Key, Florida Bay, 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