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

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Vaca Key, Florida Bay, FL.
Next low tide (tomorrow) : 8:30 pm (0.0 ft)
Next high tide (tomorrow) : in 14h 23m at 9:18 am (1.2 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 6:55 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8723970
Common Questions About Tides

Vaca Key, Florida Bay, FL Tides - Sep 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:071.03:401.17:570.68:250.67:057:42Full Moon1Tue
2Wed3:371.04:171.18:410.59:000.77:067:41Waning Gibbous2Wed
3Thu3:581.14:561.09:260.49:360.77:067:40Waning Gibbous3Thu
4Fri4:311.25:380.910:130.310:110.77:067:39Waning Gibbous4Fri
5Sat5:061.26:270.811:020.210:440.77:077:38Waning Gibbous5Sat
6Sun5:441.211:540.17:077:37Third Quarter6Sun
7Mon6:241.212:500.17:077:36Third Quarter7Mon
8Tue7:071.21:510.17:087:35Third Quarter8Tue
9Wed7:571.22:570.27:087:34Third Quarter9Wed
10Thu8:531.34:040.37:097:33Waning Crescent10Thu
11Fri9:571.35:030.47:097:32Waning Crescent11Fri
12Sat11:101.45:520.57:097:31Waning Crescent12Sat
13Sun3:051.012:401.45:210.96:320.67:107:30New Moon13Sun
14Mon3:241.02:261.46:180.87:090.87:107:29New Moon14Mon
15Tue3:331.13:421.47:120.67:450.97:107:28New Moon15Tue
16Wed3:191.24:461.38:060.58:210.97:117:27Waxing Crescent16Wed
17Thu3:281.35:481.29:010.48:570.97:117:26Waxing Crescent17Thu
18Fri3:571.46:591.09:560.39:330.97:117:24Waxing Crescent18Fri
19Sat4:351.410:530.27:127:23First Quarter19Sat
20Sun5:181.511:520.27:127:22First Quarter20Sun
21Mon6:051.412:530.27:127:21First Quarter21Mon
22Tue6:571.41:580.37:137:20First Quarter22Tue
23Wed7:551.33:090.47:137:19Waxing Gibbous23Wed
24Thu9:001.24:220.57:147:18Waxing Gibbous24Thu
25Fri1:201.010:16 AM1.23:470.95:130.67:147:17Waxing Gibbous25Fri
26Sat1:531.01:001.24:590.85:460.77:147:16Waxing Gibbous26Sat
27Sun2:231.12:041.25:490.86:150.87:157:15Full Moon27Sun
28Mon2:461.12:581.36:280.86:440.97:157:14Full Moon28Mon
29Tue2:481.23:451.37:050.77:150.97:157:13Full Moon29Tue
30Wed2:051.24:291.27:420.67:470.97:167:12Full Moon30Wed
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 2:54 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 transitional phase. Tonight's moon is 22% 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 Crescent (22% 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