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

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Vaca Key, Florida Bay, FL.
Next low tide (tomorrow) : 9:36 pm (0.1 ft)
Next high tide (tomorrow) : in 12h 42m at 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 - Mar 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:080.53:020.46:390.06:560.06:466:26Full Moon1Sun
2Mon2:400.42:420.57:130.07:39-0.26:466:27Full Moon2Mon
3Tue3:130.43:010.57:480.08:24-0.36:456:27Waning Gibbous3Tue
4Wed3:500.33:310.68:230.09:10-0.46:446:28Waning Gibbous4Wed
5Thu4:300.34:060.68:580.09:59-0.56:436:28Waning Gibbous5Thu
6Fri5:160.24:420.69:290.010:50-0.66:426:29Waning Gibbous6Fri
7Sat5:200.611:45-0.66:416:29Third Quarter7Sat
8Sun6:020.66:406:30Third Quarter8Sun
9Mon6:490.612:44-0.66:396:30Third Quarter9Mon
10Tue7:450.61:48-0.56:386:31Waning Crescent10Tue
11Wed8:530.72:53-0.46:376:31Waning Crescent11Wed
12Thu10:150.73:52-0.36:366:32Waning Crescent12Thu
13Fri1:550.34:42-0.14:160.26:356:32Waning Crescent13Fri
14Sat12:250.72:140.45:240.05:160.16:346:32New Moon14Sat
15Sun1:560.72:210.46:020.16:12-0.16:336:33New Moon15Sun
16Mon2:590.62:040.56:390.27:07-0.26:326:33New Moon16Mon
17Tue3:560.62:190.77:170.28:01-0.36:316:34Waxing Crescent17Tue
18Wed4:530.42:520.77:550.28:55-0.46:306:34Waxing Crescent18Wed
19Thu5:540.33:310.88:340.19:50-0.56:296:35Waxing Crescent19Thu
20Fri7:060.24:140.89:140.110:45-0.56:286:35First Quarter20Fri
21Sat4:590.711:42-0.56:276:36First Quarter21Sat
22Sun5:480.66:266:36First Quarter22Sun
23Mon6:410.612:42-0.46:256:36First Quarter23Mon
24Tue7:410.51:47-0.36:246:37Waxing Gibbous24Tue
25Wed12:080.32:58-0.22:420.26:236:37Waxing Gibbous25Wed
26Thu12:430.33:58-0.13:560.16:226:38Waxing Gibbous26Thu
27Fri12:040.41:140.44:330.04:470.16:216:38Waxing Gibbous27Fri
28Sat1:080.51:380.55:020.15:250.06:206:38Full Moon28Sat
29Sun2:000.51:460.55:310.26:010.06:196:39Full Moon29Sun
30Mon2:470.51:170.56:020.26:38-0.16:186:39Full Moon30Mon
31Tue3:300.51:390.66:350.27:18-0.36:176:40Full Moon31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723970)

Common Questions About Vaca Key, Florida Bay, FL Tides

Show All
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 3:57 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 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