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

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Vaca Key, Florida Bay, FL.
Next low tide (tomorrow) : 3:49 pm (0.0 ft)
Next high tide (tomorrow) : in 13h 54m at 8:10 am (1.0 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:47 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8723970
Common Questions About Tides

Vaca Key, Florida Bay, FL Tides - Dec 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:181.04:120.33:540.76:515:35Waxing Gibbous1Sat
2Sun2:121.05:000.24:360.86:525:35Full Moon2Sun
3Mon3:060.95:420.25:180.86:535:35Full Moon3Mon
4Tue3:480.96:240.16:060.76:535:35Full Moon4Tue
5Wed12:421.34:360.97:120.16:540.76:545:35Waning Gibbous5Wed
6Thu1:361.25:180.87:540.07:420.76:555:35Waning Gibbous6Thu
7Fri2:241.26:000.88:360.08:300.66:555:35Waning Gibbous7Fri
8Sat3:181.16:360.89:240.09:240.66:565:35Waning Gibbous8Sat
9Sun4:061.07:060.810:120.110:240.56:575:36Third Quarter9Sun
10Mon4:540.96:120.810:540.111:300.56:575:36Third Quarter10Mon
11Tue5:420.86:480.811:420.26:585:36Third Quarter11Tue
12Wed6:360.77:300.812:420.412:360.36:595:36Third Quarter12Wed
13Thu10:300.68:180.91:540.41:240.46:595:37Waning Crescent13Thu
14Fri11:480.69:000.92:540.32:120.57:005:37Waning Crescent14Fri
15Sat12:540.73:360.23:000.67:005:37Waning Crescent15Sat
16Sun10:241.04:180.17:015:38Waning Crescent16Sun
17Mon11:061.04:540.07:025:38New Moon17Mon
18Tue5:360.07:025:39New Moon18Tue
19Wed12:001.16:18-0.17:035:39New Moon19Wed
20Thu12:481.17:00-0.17:035:40New Moon20Thu
21Fri1:481.15:180.77:48-0.17:240.67:045:40Waxing Crescent21Fri
22Sat2:361.15:540.78:36-0.18:180.67:045:41Waxing Crescent22Sat
23Sun3:301.06:180.79:24-0.19:120.57:055:41Waxing Crescent23Sun
24Mon4:180.96:000.710:120.010:180.47:055:42First Quarter24Mon
25Tue5:120.86:180.711:000.111:240.37:065:42First Quarter25Tue
26Wed6:120.76:540.811:480.27:065:43First Quarter26Wed
27Thu9:300.57:300.812:360.212:420.37:075:43First Quarter27Thu
28Fri11:060.58:120.91:480.11:300.47:075:44Waxing Gibbous28Fri
29Sat12:120.53:000.12:240.47:075:44Waxing Gibbous29Sat
30Sun1:120.64:000.03:180.47:085:45Waxing Gibbous30Sun
31Mon2:000.64:48-0.14:060.57:085:46Full Moon31Mon
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 11:59 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 62% 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 First Quarter (62% 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