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

TIDE TIMES for Sunday, June 7, 2026
The tide is currently falling in Grassy Key, north side, Florida Bay, FL.
Next low tide (tomorrow) : in 6h 16m at 4:39 am (0.2 ft)
Next high tide (tomorrow) : 10:17 am (0.9 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:33 am
Moon phase : Third Quarter (58% illuminated)
Tide Station Location : Station #8723921
Common Questions About Tides

Grassy Key, north side, Florida Bay, FL Tides - Nov 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:151.611:401.03:131.15:350.57:316:43First Quarter1Tue
2Wed10:451.54:541.16:410.67:316:43First Quarter2Wed
3Thu12:351.112:111.56:261.07:350.67:326:42Waxing Gibbous3Thu
4Fri1:171.31:221.57:410.88:200.77:326:41Waxing Gibbous4Fri
5Sat1:541.42:221.58:430.68:590.87:336:41Waxing Gibbous5Sat
6Sun1:281.52:141.48:350.48:350.86:345:40Full Moon6Sun
7Mon2:001.63:011.49:210.39:090.86:345:40Full Moon7Mon
8Tue2:321.73:441.310:040.29:420.86:355:39Full Moon8Tue
9Wed3:031.74:241.210:450.110:140.86:365:39Full Moon9Wed
10Thu3:361.75:031.111:250.110:460.96:365:38Waning Gibbous10Thu
11Fri4:091.65:421.012:070.16:375:38Waning Gibbous11Fri
12Sat4:451.66:251.012:510.26:385:37Waning Gibbous12Sat
13Sun5:241.57:120.91:410.36:385:37Waning Gibbous13Sun
14Mon6:081.48:100.912:211.02:380.46:395:37Third Quarter14Mon
15Tue6:591.49:170.91:081.13:380.56:405:36Third Quarter15Tue
16Wed8:021.310:191.02:311.24:370.66:405:36Third Quarter16Wed
17Thu9:191.311:041.14:121.25:290.76:415:36Third Quarter17Thu
18Fri10:381.211:401.25:301.06:130.76:425:35Waning Crescent18Fri
19Sat11:481.26:310.86:510.76:425:35Waning Crescent19Sat
20Sun12:121.312:471.27:220.67:250.86:435:35Waning Crescent20Sun
21Mon12:451.41:421.28:090.37:590.86:445:35Waning Crescent21Mon
22Tue1:191.52:331.28:530.18:330.76:455:34New Moon22Tue
23Wed1:551.63:231.19:38-0.19:080.76:455:34New Moon23Wed
24Thu2:341.74:131.110:24-0.39:450.76:465:34New Moon24Thu
25Fri3:171.75:031.011:12-0.310:240.76:475:34Waxing Crescent25Fri
26Sat4:041.75:540.912:03-0.36:475:34Waxing Crescent26Sat
27Sun4:561.76:470.912:58-0.26:485:34Waxing Crescent27Sun
28Mon5:521.67:450.91:580.06:495:34Waxing Crescent28Mon
29Tue6:551.58:470.91:010.83:010.26:505:34First Quarter29Tue
30Wed8:091.49:491.02:240.84:020.36:505:34First Quarter30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723921)

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

Show All
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 7:28 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 Grassy Key, north side, Florida Bay, FL?

Grassy Key, north side, Florida Bay, FL is currently in a neap phase. Tonight's moon is 58% 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 near their weekly minimum.

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 Third Quarter (58% illuminated). This places Grassy Key, north side, Florida Bay, FL in a neap tide cycle, so tidal ranges are near their weekly minimum 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