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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Vaca Key, Florida Bay, FL.
Next low tide : in 37m at 3:06 pm (0.0 ft)
Next high tide (tomorrow) : 8:57 am (1.0 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:42 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8723970
Common Questions About Tides

Vaca Key, Florida Bay, FL Tides - Sep 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:371.03:221.16:580.67:260.67:057:43Full Moon1Wed
2Thu3:441.03:581.17:400.58:020.67:057:42Full Moon2Thu
3Fri3:091.04:201.08:220.58:380.67:067:41Waning Gibbous3Fri
4Sat3:361.14:451.09:060.49:160.67:067:40Waning Gibbous4Sat
5Sun4:121.25:190.99:510.39:540.67:067:39Waning Gibbous5Sun
6Mon4:511.26:000.810:380.210:320.77:077:37Waning Gibbous6Mon
7Tue5:311.29:070.711:280.211:100.77:077:36Third Quarter7Tue
8Wed6:141.212:220.27:087:35Third Quarter8Wed
9Thu7:001.21:190.27:087:34Third Quarter9Thu
10Fri7:511.22:210.37:087:33Third Quarter10Fri
11Sat8:471.23:230.47:097:32Waning Crescent11Sat
12Sun9:491.24:220.57:097:31Waning Crescent12Sun
13Mon1:571.010:58 AM1.34:070.95:120.67:097:30Waning Crescent13Mon
14Tue2:261.012:271.35:050.85:560.77:107:29New Moon14Tue
15Wed2:491.02:261.35:590.76:360.87:107:28New Moon15Wed
16Thu2:591.13:341.36:510.67:150.87:107:27New Moon16Thu
17Fri2:471.24:321.27:420.57:540.97:117:26New Moon17Fri
18Sat3:061.35:291.28:340.48:330.97:117:25Waxing Crescent18Sat
19Sun3:401.46:301.09:270.39:130.97:117:24Waxing Crescent19Sun
20Mon4:211.47:390.910:220.29:550.87:127:23Waxing Crescent20Mon
21Tue5:051.411:180.27:127:22First Quarter21Tue
22Wed5:521.412:160.37:137:20First Quarter22Wed
23Thu6:431.31:160.37:137:19First Quarter23Thu
24Fri7:391.311:570.92:200.47:137:18First Quarter24Fri
25Sat8:431.22:040.83:250.57:147:17Waxing Gibbous25Sat
26Sun12:381.010:06 AM1.13:290.84:230.67:147:16Waxing Gibbous26Sun
27Mon1:161.012:561.24:430.85:080.77:147:15Waxing Gibbous27Mon
28Tue1:501.11:561.25:340.75:450.87:157:14Waxing Gibbous28Tue
29Wed2:191.12:491.26:130.76:190.87:157:13Full Moon29Wed
30Thu2:281.23:371.26:480.66:520.97:167:12Full Moon30Thu
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 12:01 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 30% 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 (30% 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