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

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently falling in Grassy Key, north side, Florida Bay, FL.
Next low tide : in 1h 26m at 8:02 pm (0.1 ft)
Next high tide (tomorrow) : 1:45 am (0.7 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 - Nov 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:121.610:281.02:101.14:360.57:316:43Third Quarter1Wed
2Thu9:341.511:291.13:391.15:410.67:316:42Third Quarter2Thu
3Fri11:041.55:181.16:390.77:326:42Third Quarter3Fri
4Sat12:181.212:271.56:430.97:280.87:336:41Waning Crescent4Sat
5Sun1:001.412:371.46:530.67:120.86:335:40Waning Crescent5Sun
6Mon12:391.51:371.47:530.47:520.86:345:40Waning Crescent6Mon
7Tue1:171.72:311.38:460.28:300.86:355:39New Moon7Tue
8Wed1:551.73:211.39:340.09:080.86:355:39New Moon8Wed
9Thu2:341.84:071.210:20-0.19:450.86:365:38New Moon9Thu
10Fri3:141.84:511.111:05-0.110:230.86:365:38Waxing Crescent10Fri
11Sat3:561.75:341.011:510.011:010.86:375:38Waxing Crescent11Sat
12Sun4:381.76:171.012:380.16:385:37Waxing Crescent12Sun
13Mon5:221.67:030.91:280.36:395:37Waxing Crescent13Mon
14Tue6:091.57:540.912:261.02:230.46:395:36First Quarter14Tue
15Wed7:001.48:521.01:261.03:200.66:405:36First Quarter15Wed
16Thu8:011.39:501.02:491.14:150.76:415:36First Quarter16Thu
17Fri9:131.210:371.14:171.15:060.86:415:35First Quarter17Fri
18Sat10:311.211:151.25:311.05:500.86:425:35First Quarter18Sat
19Sun11:421.111:481.36:320.86:290.96:435:35Waxing Gibbous19Sun
20Mon12:411.17:220.67:040.96:435:35Waxing Gibbous20Mon
21Tue12:221.41:331.18:060.47:360.96:445:34Waxing Gibbous21Tue
22Wed12:551.52:201.18:470.28:080.86:455:34Full Moon22Wed
23Thu1:311.53:061.09:260.08:410.86:465:34Full Moon23Thu
24Fri2:091.63:511.010:06-0.19:150.86:465:34Full Moon24Fri
25Sat2:491.64:360.910:48-0.29:520.76:475:34Full Moon25Sat
26Sun3:331.75:220.911:33-0.210:330.76:485:34Waning Gibbous26Sun
27Mon4:201.76:080.912:21-0.16:485:34Waning Gibbous27Mon
28Tue5:121.66:570.91:130.06:495:34Waning Gibbous28Tue
29Wed6:081.57:480.912:150.72:080.16:505:34Third Quarter29Wed
30Thu7:121.48:411.01:250.83:040.36:505:34Third Quarter30Thu
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 10:53 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