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

TIDE TIMES for Sunday, June 14, 2026
The tide is currently rising in Grassy Key, north side, Florida Bay, FL.
Next low tide : 11:07 pm (-0.7 ft)
Next high tide : in 4h 05m at 2:57 pm (1.6 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:34 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8723921
Common Questions About Tides

Grassy Key, north side, Florida Bay, FL Tides - Sep 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:541.46:201.512:230.312:410.37:047:42Waning Gibbous1Fri
2Sat6:331.57:111.31:010.41:350.37:057:41Waning Gibbous2Sat
3Sun7:161.58:071.21:410.52:350.37:057:40Waning Gibbous3Sun
4Mon8:051.59:131.12:260.73:420.37:067:39Third Quarter4Mon
5Tue9:031.510:341.03:180.84:560.47:067:38Third Quarter5Tue
6Wed10:131.54:200.86:120.47:067:37Third Quarter6Wed
7Thu12:011.011:31 AM1.55:320.97:220.47:077:36Waning Crescent7Thu
8Fri1:121.012:431.66:450.98:230.47:077:35Waning Crescent8Fri
9Sat2:061.11:461.67:520.89:140.47:077:34Waning Crescent9Sat
10Sun2:491.22:401.68:510.79:560.47:087:33Waning Crescent10Sun
11Mon3:271.33:281.69:440.610:330.47:087:32New Moon11Mon
12Tue4:011.34:111.610:310.511:080.57:087:30New Moon12Tue
13Wed4:331.44:511.511:140.511:420.57:097:29New Moon13Wed
14Thu5:041.55:281.511:560.57:097:28Waxing Crescent14Thu
15Fri5:351.56:051.412:150.612:380.57:097:27Waxing Crescent15Fri
16Sat6:071.56:421.312:480.71:200.57:107:26Waxing Crescent16Sat
17Sun6:401.57:211.21:200.82:050.67:107:25Waxing Crescent17Sun
18Mon7:161.58:061.11:530.92:560.67:117:24Waxing Crescent18Mon
19Tue7:581.49:011.02:271.03:540.77:117:23First Quarter19Tue
20Wed8:471.410:161.03:081.15:000.77:117:22First Quarter20Wed
21Thu9:491.411:421.04:071.16:070.77:127:21First Quarter21Thu
22Fri11:011.45:231.27:080.77:127:20First Quarter22Fri
23Sat12:481.112:111.46:361.18:000.77:127:19Waxing Gibbous23Sat
24Sun1:341.11:111.57:381.08:440.67:137:18Waxing Gibbous24Sun
25Mon2:121.22:061.68:310.99:230.67:137:17Waxing Gibbous25Mon
26Tue2:481.32:561.69:200.79:590.67:137:16Full Moon26Tue
27Wed3:241.53:451.710:060.510:360.67:147:14Full Moon27Wed
28Thu4:001.64:331.610:530.411:120.67:147:13Full Moon28Thu
29Fri4:381.75:221.611:400.211:490.67:157:12Full Moon29Fri
30Sat5:181.76:121.512:300.27:157:11Waning Gibbous30Sat
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 7:02 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 0% 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 New Moon (0% 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