Tides Today & Tomorrow in Grassy Key, north side, Florida Bay, FL

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Grassy Key, north side, Florida Bay, FL.
Next low tide : 8:02 pm (0.1 ft)
Next high tide : in 3h 36m at 12:00 pm (1.2 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:36 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #8723921
Common Questions About Tides

Grassy Key, north side, Florida Bay, FL Tides - Apr 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:340.76:480.16:210.57:147:40First Quarter1Sun
2Mon1:180.87:420.17:330.47:137:40Waxing Gibbous2Mon
3Tue1:091.11:560.98:270.18:320.27:127:41Waxing Gibbous3Tue
4Wed2:101.12:321.09:080.19:25-0.17:117:41Waxing Gibbous4Wed
5Thu3:051.13:091.29:460.110:14-0.37:107:41Full Moon5Thu
6Fri3:571.13:471.310:240.111:03-0.57:097:42Full Moon6Fri
7Sat4:471.14:271.411:010.111:52-0.67:087:42Full Moon7Sat
8Sun5:381.05:091.411:400.27:077:43Waning Gibbous8Sun
9Mon6:280.95:551.512:43-0.612:200.27:067:43Waning Gibbous9Mon
10Tue7:200.86:441.41:36-0.61:040.37:057:44Waning Gibbous10Tue
11Wed8:170.77:381.32:34-0.41:540.47:047:44Waning Gibbous11Wed
12Thu9:230.78:421.23:37-0.32:570.47:037:44Third Quarter12Thu
13Fri10:390.79:591.14:45-0.14:180.57:027:45Third Quarter13Fri
14Sat11:520.711:251.05:520.05:460.57:017:45Third Quarter14Sat
15Sun12:490.86:530.27:060.47:007:46Waning Crescent15Sun
16Mon12:441.01:330.97:460.28:120.37:007:46Waning Crescent16Mon
17Tue1:471.02:091.08:300.39:060.16:597:47Waning Crescent17Tue
18Wed2:401.02:401.19:090.39:520.06:587:47Waning Crescent18Wed
19Thu3:241.03:101.29:440.310:31-0.16:577:48New Moon19Thu
20Fri4:030.93:381.210:170.311:08-0.26:567:48New Moon20Fri
21Sat4:400.94:071.310:480.311:44-0.26:557:49New Moon21Sat
22Sun5:150.94:381.311:180.46:547:49New Moon22Sun
23Mon5:510.85:101.312:20-0.311:47 AM0.46:537:49Waxing Crescent23Mon
24Tue6:290.85:451.212:56-0.312:150.46:537:50Waxing Crescent24Tue
25Wed7:090.86:211.21:35-0.212:450.56:527:50Waxing Crescent25Wed
26Thu7:540.77:011.22:18-0.11:190.66:517:51Waxing Crescent26Thu
27Fri8:440.77:481.13:06-0.12:050.66:507:51First Quarter27Fri
28Sat9:420.78:461.14:000.03:120.76:497:52First Quarter28Sat
29Sun10:420.810:011.04:560.14:380.76:497:52First Quarter29Sun
30Mon11:370.911:251.05:520.26:010.56:487:53First Quarter30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723921)

Common Questions About Grassy Key, north side, Florida Bay, FL Tides

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What time does the tide turn (slack tide) in Grassy Key, north side, Florida Bay, FL today?

Slack tide in Grassy Key, north side, Florida Bay, FL is approximately 4:01 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 Grassy Key, north side, Florida Bay, FL?

Grassy Key, north side, Florida Bay, FL is currently in a transitional phase. Tonight's moon is 76% 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 Grassy Key, north side, 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 Grassy Key, north side, Florida Bay, FL?

Tide predictions for Grassy Key, north side, 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 Grassy Key, north side, Florida Bay, FL?

Tide data for Grassy Key, north side, Florida Bay, FL is sourced from NOAA Station #8723921. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8723921.

What is the moon phase in Grassy Key, north side, Florida Bay, FL tonight?

Tonight the moon over Grassy Key, north side, Florida Bay, FL is Waxing Gibbous (76% illuminated). This places Grassy Key, north side, 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