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

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Vaca Key, Florida Bay, FL.
Next low tide : 9:36 pm (0.1 ft)
Next high tide : in 9h 47m at 10:18 am (1.3 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:56 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8723970
Common Questions About Tides

Vaca Key, Florida Bay, FL Tides - Dec 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:351.36:040.06:525:35Full Moon1Mon
2Tue6:430.06:525:35Full Moon2Tue
3Wed12:321.37:230.06:535:35Waning Gibbous3Wed
4Thu1:311.38:050.06:545:35Waning Gibbous4Thu
5Fri2:251.26:180.88:470.08:250.76:545:35Waning Gibbous5Fri
6Sat3:161.16:500.89:310.19:230.76:555:35Waning Gibbous6Sat
7Sun4:061.16:590.810:160.210:280.66:565:35Third Quarter7Sun
8Mon4:571.06:180.811:000.211:370.66:565:36Third Quarter8Mon
9Tue5:510.86:500.911:450.36:575:36Third Quarter9Tue
10Wed6:510.77:280.912:490.512:300.56:585:36Third Quarter10Wed
11Thu11:000.68:071.01:560.41:160.66:585:36Waning Crescent11Thu
12Fri8:451.02:530.26:595:37Waning Crescent12Fri
13Sat9:211.03:400.17:005:37Waning Crescent13Sat
14Sun9:541.14:230.07:005:37Waning Crescent14Sun
15Mon8:271.15:05-0.17:015:38New Moon15Mon
16Tue9:031.25:48-0.27:015:38New Moon16Tue
17Wed9:471.26:32-0.27:025:39New Moon17Wed
18Thu7:18-0.27:035:39New Moon18Thu
19Fri1:381.28:06-0.17:035:39Waxing Crescent19Fri
20Sat2:411.28:530.07:045:40Waxing Crescent20Sat
21Sun3:391.16:340.79:400.19:250.57:045:40Waxing Crescent21Sun
22Mon4:361.06:080.710:260.210:380.47:055:41First Quarter22Mon
23Tue5:360.86:170.811:110.311:560.37:055:41First Quarter23Tue
24Wed6:520.66:460.911:560.47:065:42First Quarter24Wed
25Thu10:230.57:240.91:160.212:410.47:065:43Waxing Gibbous25Thu
26Fri8:051.02:370.07:065:43Waxing Gibbous26Fri
27Sat8:501.03:48-0.17:075:44Waxing Gibbous27Sat
28Sun9:351.04:37-0.27:075:44Waxing Gibbous28Sun
29Mon10:241.05:15-0.27:085:45Full Moon29Mon
30Tue11:171.05:50-0.27:085:45Full Moon30Tue
31Wed6:25-0.27:085:46Full Moon31Wed
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 6% 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 (6% 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