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

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in Vaca Key, Florida Bay, FL.
Next low tide : in 6h 47m at 8:30 pm (0.0 ft)
Next high tide (tomorrow) : 10:18 am (1.3 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 6:56 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8723970
Common Questions About Tides

Vaca Key, Florida Bay, FL Tides - Nov 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:341.011:111.12:490.82:270.86:315:44Waning Crescent1Sun
2Mon11:541.111:311.24:040.73:160.96:325:43Waning Crescent2Mon
3Tue12:561.14:390.63:550.96:325:43Waning Crescent3Tue
4Wed1:511.15:030.54:281.06:335:42Waning Crescent4Wed
5Thu2:421.15:300.45:001.06:335:42New Moon5Thu
6Fri3:311.16:010.35:321.06:345:41New Moon6Fri
7Sat12:101.36:370.26:355:41New Moon7Sat
8Sun12:551.47:160.26:355:40New Moon8Sun
9Mon1:431.47:580.16:365:40Waxing Crescent9Mon
10Tue2:301.48:440.16:375:39Waxing Crescent10Tue
11Wed3:181.49:330.16:375:39Waxing Crescent11Wed
12Thu4:061.410:240.26:385:38First Quarter12Thu
13Fri4:571.311:160.36:395:38First Quarter13Fri
14Sat5:551.29:381.012:110.56:395:37First Quarter14Sat
15Sun7:051.18:301.012:180.91:050.66:405:37First Quarter15Sun
16Mon8:461.08:441.11:360.71:570.86:415:37Waxing Gibbous16Mon
17Tue11:581.19:101.22:490.62:450.96:425:36Waxing Gibbous17Tue
18Wed1:071.13:510.43:300.96:425:36Waxing Gibbous18Wed
19Thu2:071.14:440.34:111.06:435:36Full Moon19Thu
20Fri10:551.55:320.26:445:36Full Moon20Fri
21Sat11:561.56:180.16:445:35Full Moon21Sat
22Sun7:030.16:455:35Waning Gibbous22Sun
23Mon1:031.57:490.16:465:35Waning Gibbous23Mon
24Tue2:041.48:350.16:465:35Waning Gibbous24Tue
25Wed2:591.36:500.89:210.28:580.86:475:35Waning Gibbous25Wed
26Thu3:511.27:290.810:090.210:060.76:485:35Third Quarter26Thu
27Fri4:431.18:050.910:570.311:220.76:495:35Third Quarter27Fri
28Sat5:371.07:020.911:450.46:495:35Third Quarter28Sat
29Sun6:370.97:281.012:490.612:350.56:505:35Third Quarter29Sun
30Mon10:330.88:061.02:300.51:250.66:515:35Waning Crescent30Mon
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 3:24 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 spring phase. Tonight's moon is 13% 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 Crescent (13% 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