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 5h 49m 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 - May 1932

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:220.512:540.64:140.25:540.26:487:54Waning Crescent1Sun
2Mon1:310.61:150.64:580.36:190.16:487:54Waning Crescent2Mon
3Tue2:290.612:040.75:340.46:400.06:477:54Waning Crescent3Tue
4Wed3:220.612:300.86:070.47:06-0.16:467:55New Moon4Wed
5Thu4:110.61:070.86:390.57:37-0.26:467:55New Moon5Thu
6Fri4:580.61:490.87:110.58:12-0.36:457:56New Moon6Fri
7Sat2:330.98:51-0.46:447:56New Moon7Sat
8Sun3:170.99:33-0.46:447:57Waxing Crescent8Sun
9Mon4:010.910:19-0.46:437:57Waxing Crescent9Mon
10Tue4:440.911:07-0.46:427:58Waxing Crescent10Tue
11Wed5:290.911:58-0.36:427:58Waxing Crescent11Wed
12Thu6:180.86:417:59First Quarter12Thu
13Fri7:160.812:51-0.26:417:59First Quarter13Fri
14Sat11:290.58:250.71:460.01:530.46:408:00First Quarter14Sat
15Sun11:470.69:560.62:420.23:100.36:408:00Waxing Gibbous15Sun
16Mon10:450.63:330.34:180.26:398:01Waxing Gibbous16Mon
17Tue1:300.610:56 AM0.74:190.55:170.06:398:02Waxing Gibbous17Tue
18Wed2:400.711:17 AM0.95:000.66:10-0.26:388:02Full Moon18Wed
19Thu11:421.06:59-0.36:388:03Full Moon19Thu
20Fri12:311.17:47-0.46:388:03Full Moon20Fri
21Sat1:401.18:35-0.46:378:04Full Moon21Sat
22Sun2:431.19:24-0.46:378:04Waning Gibbous22Sun
23Mon3:411.110:13-0.36:378:05Waning Gibbous23Mon
24Tue4:341.011:02-0.26:368:05Waning Gibbous24Tue
25Wed5:260.911:53-0.16:368:05Third Quarter25Wed
26Thu9:260.46:200.811:330.46:368:06Third Quarter26Thu
27Fri10:040.57:200.612:430.01:010.46:358:06Third Quarter27Fri
28Sat10:380.610:450.51:350.12:560.36:358:07Third Quarter28Sat
29Sun11:030.62:280.25:130.26:358:07Waning Crescent29Sun
30Mon12:200.59:47 AM0.73:200.46:020.16:358:08Waning Crescent30Mon
31Tue1:280.610:23 AM0.84:070.46:170.06:358:08Waning Crescent31Tue
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