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

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in Vaca Key, Florida Bay, FL.
Next low tide : in 5h 00m at 3:48 pm (0.0 ft)
Next high tide (tomorrow) : 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 - Mar 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:050.33:570.68:560.09:56-0.46:466:26Waning Gibbous1Thu
2Fri5:240.14:350.69:380.010:49-0.56:456:27Third Quarter2Fri
3Sat8:020.05:170.610:210.011:44-0.56:446:27Third Quarter3Sat
4Sun6:030.56:436:28Third Quarter4Sun
5Mon6:530.512:41-0.56:436:28Third Quarter5Mon
6Tue7:480.41:41-0.46:426:29Waning Crescent6Tue
7Wed8:470.42:42-0.36:416:29Waning Crescent7Wed
8Thu1:010.23:37-0.33:190.16:406:30Waning Crescent8Thu
9Fri1:340.34:19-0.24:110.16:396:30Waning Crescent9Fri
10Sat2:010.34:56-0.14:560.16:386:31New Moon10Sat
11Sun1:100.52:190.45:310.05:390.06:376:31New Moon11Sun
12Mon2:030.52:030.46:070.06:22-0.16:366:32New Moon12Mon
13Tue2:480.52:040.56:440.17:07-0.26:356:32New Moon13Tue
14Wed3:300.52:330.67:220.17:55-0.36:346:33Waxing Crescent14Wed
15Thu4:120.43:070.68:010.18:44-0.46:336:33Waxing Crescent15Thu
16Fri4:580.33:440.78:400.19:36-0.56:326:33Waxing Crescent16Fri
17Sat6:200.24:220.79:180.110:30-0.56:316:34Waxing Crescent17Sat
18Sun5:040.711:26-0.56:306:34First Quarter18Sun
19Mon5:500.76:296:35First Quarter19Mon
20Tue6:430.712:26-0.46:286:35First Quarter20Tue
21Wed7:450.61:29-0.36:276:36Waxing Gibbous21Wed
22Thu12:130.32:31-0.22:160.26:266:36Waxing Gibbous22Thu
23Fri12:460.43:29-0.13:280.16:246:36Waxing Gibbous23Fri
24Sat12:060.61:170.44:180.04:300.16:236:37Waxing Gibbous24Sat
25Sun1:180.61:440.55:000.15:250.06:226:37Full Moon25Sun
26Mon2:160.62:010.55:400.26:15-0.16:216:38Full Moon26Mon
27Tue3:080.51:480.66:200.27:03-0.26:206:38Full Moon27Tue
28Wed3:560.52:060.76:590.27:50-0.36:196:39Waning Gibbous28Wed
29Thu4:440.42:410.77:400.18:37-0.46:186:39Waning Gibbous29Thu
30Fri5:320.33:200.78:210.19:24-0.46:176:39Waning Gibbous30Fri
31Sat6:280.24:010.79:040.110:13-0.56:166:40Waning Gibbous31Sat
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 12:33 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 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