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 4h 47m 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 - May 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:241.06:440.27:120.36:477:53Waxing Gibbous1Tue
2Wed12:431.01:071.17:330.38:140.16:477:54Waxing Gibbous2Wed
3Thu1:511.01:481.28:180.39:09-0.26:467:54Waxing Gibbous3Thu
4Fri2:511.02:301.49:020.310:01-0.46:457:55Full Moon4Fri
5Sat3:471.03:141.59:450.310:52-0.66:457:55Full Moon5Sat
6Sun4:390.94:001.510:280.311:42-0.76:447:56Full Moon6Sun
7Mon5:310.94:481.611:110.36:437:56Full Moon7Mon
8Tue6:210.85:381.512:32-0.611:57 AM0.36:437:57Waning Gibbous8Tue
9Wed7:110.86:301.51:25-0.512:460.36:427:57Waning Gibbous9Wed
10Thu8:040.87:251.42:19-0.41:430.46:417:58Waning Gibbous10Thu
11Fri9:000.88:261.23:17-0.22:520.56:417:58Third Quarter11Fri
12Sat10:010.89:361.14:150.04:140.56:407:59Third Quarter12Sat
13Sun11:020.910:551.05:120.25:360.56:407:59Third Quarter13Sun
14Mon11:571.06:050.36:510.46:398:00Third Quarter14Mon
15Tue12:150.912:421.16:540.47:560.36:398:00Waning Crescent15Tue
16Wed1:240.91:211.17:390.48:500.16:388:01Waning Crescent16Wed
17Thu2:200.81:561.28:210.49:350.06:388:01Waning Crescent17Thu
18Fri3:070.82:291.39:000.510:15-0.16:388:02Waning Crescent18Fri
19Sat3:480.83:011.39:360.510:52-0.26:378:02New Moon19Sat
20Sun4:250.83:351.310:100.411:27-0.36:378:03New Moon20Sun
21Mon5:020.84:101.310:420.56:368:03New Moon21Mon
22Tue5:390.84:461.312:03-0.311:14 AM0.56:368:04New Moon22Tue
23Wed6:170.85:231.312:38-0.311:47 AM0.56:368:04Waxing Crescent23Wed
24Thu6:570.86:021.31:16-0.212:230.56:358:05Waxing Crescent24Thu
25Fri7:380.86:441.21:55-0.21:050.66:358:05Waxing Crescent25Fri
26Sat8:210.87:311.22:38-0.11:580.66:358:06Waxing Crescent26Sat
27Sun9:070.98:261.13:230.03:060.66:358:06First Quarter27Sun
28Mon9:550.99:341.04:120.14:240.56:348:07First Quarter28Mon
29Tue10:451.010:570.95:010.25:420.46:348:07First Quarter29Tue
30Wed11:341.15:510.36:530.26:348:08Waxing Gibbous30Wed
31Thu12:210.812:231.26:420.37:57-0.16:348:08Waxing Gibbous31Thu
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