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

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Grassy Key, north side, Florida Bay, FL.
Next low tide (tomorrow) : 1:23 am (-0.2 ft)
Next high tide : in 3h 05m at 5:32 pm (1.3 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:38 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #8723921
Common Questions About Tides

Grassy Key, north side, Florida Bay, FL Tides - Nov 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:191.42:401.49:170.79:250.87:306:43Waxing Gibbous1Mon
2Tue2:461.53:201.49:560.69:560.87:316:43Full Moon2Tue
3Wed3:131.53:581.410:330.510:260.87:326:42Full Moon3Wed
4Thu3:411.64:351.311:070.410:530.87:326:41Full Moon4Thu
5Fri4:111.65:131.311:410.311:210.87:336:41Full Moon5Fri
6Sat4:431.65:531.212:170.27:346:40Waning Gibbous6Sat
7Sun4:161.65:351.211:550.211:180.96:345:40Waning Gibbous7Sun
8Mon4:511.66:211.112:370.26:355:39Waning Gibbous8Mon
9Tue5:301.57:121.01:250.36:365:39Waning Gibbous9Tue
10Wed6:151.58:121.012:351.02:220.46:365:38Third Quarter10Wed
11Thu7:121.59:181.01:321.13:250.46:375:38Third Quarter11Thu
12Fri8:261.410:221.12:521.14:290.56:385:37Third Quarter12Fri
13Sat9:531.411:151.24:201.05:280.56:385:37Third Quarter13Sat
14Sun11:151.45:400.86:220.66:395:36Waning Crescent14Sun
15Mon12:011.312:261.46:470.67:110.66:405:36Waning Crescent15Mon
16Tue12:431.51:281.47:470.37:560.66:405:36Waning Crescent16Tue
17Wed1:251.62:241.48:410.18:390.66:415:35New Moon17Wed
18Thu2:061.73:171.39:31-0.19:200.66:425:35New Moon18Thu
19Fri2:491.84:071.210:20-0.210:020.66:425:35New Moon19Fri
20Sat3:321.84:561.211:09-0.210:440.66:435:35Waxing Crescent20Sat
21Sun4:171.75:441.111:58-0.211:280.76:445:34Waxing Crescent21Sun
22Mon5:031.76:321.012:500.06:445:34Waxing Crescent22Mon
23Tue5:511.67:251.012:160.71:440.16:455:34Waxing Crescent23Tue
24Wed6:421.48:231.01:120.82:410.36:465:34First Quarter24Wed
25Thu7:401.39:271.02:220.93:400.46:475:34First Quarter25Thu
26Fri8:491.210:281.03:430.94:380.56:475:34First Quarter26Fri
27Sat10:081.111:171.15:010.95:310.66:485:34First Quarter27Sat
28Sun11:241.111:561.26:100.76:190.66:495:34Waxing Gibbous28Sun
29Mon12:251.17:070.67:020.76:495:34Waxing Gibbous29Mon
30Tue12:301.31:161.17:550.47:400.76:505:34Waxing Gibbous30Tue
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 9:27 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 spring phase. Tonight's moon is 94% 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 maximum.

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 Waning Gibbous (94% illuminated). This places Grassy Key, north side, Florida Bay, FL in a spring tide cycle, so tidal ranges are near their weekly maximum 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