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

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in Grassy Key, north side, Florida Bay, FL.
Next low tide : 10:25 pm (-0.2 ft)
Next high tide : in 2h 50m at 2:10 pm (1.3 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:36 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8723921
Common Questions About Tides

Grassy Key, north side, Florida Bay, FL Tides - Dec 2049

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:441.38:491.12:090.63:090.36:515:34First Quarter1Wed
2Thu9:011.29:481.23:320.64:050.56:525:34First Quarter2Thu
3Fri10:271.110:441.34:540.54:590.66:535:34First Quarter3Fri
4Sat11:481.011:371.46:090.35:510.66:535:34Waxing Gibbous4Sat
5Sun12:561.07:140.16:420.66:545:34Waxing Gibbous5Sun
6Mon12:261.41:530.98:100.07:300.66:555:34Waxing Gibbous6Mon
7Tue1:111.52:420.98:58-0.18:150.66:555:35Full Moon7Tue
8Wed1:541.53:240.99:41-0.28:580.56:565:35Full Moon8Wed
9Thu2:351.54:020.910:21-0.29:400.56:575:35Full Moon9Thu
10Fri3:141.54:370.911:00-0.210:200.56:575:35Full Moon10Fri
11Sat3:521.45:110.911:38-0.111:010.56:585:36Waning Gibbous11Sat
12Sun4:311.45:450.912:16-0.16:595:36Waning Gibbous12Sun
13Mon5:091.36:200.912:550.06:595:36Waning Gibbous13Mon
14Tue5:491.26:570.912:260.61:340.27:005:37Waning Gibbous14Tue
15Wed6:311.17:361.01:180.62:140.37:005:37Third Quarter15Wed
16Thu7:201.08:201.02:190.62:550.47:015:37Third Quarter16Thu
17Fri8:190.99:071.03:290.63:380.57:015:38Third Quarter17Fri
18Sat9:350.89:571.14:400.54:220.57:025:38Third Quarter18Sat
19Sun11:010.710:491.15:460.35:090.67:035:39Waning Crescent19Sun
20Mon12:170.76:450.15:580.67:035:39Waning Crescent20Mon
21Tue1:190.77:39-0.16:480.57:045:40Waning Crescent21Tue
22Wed12:291.32:110.78:27-0.37:370.57:045:40Waning Crescent22Wed
23Thu1:191.42:580.79:13-0.48:260.47:055:41New Moon23Thu
24Fri2:091.53:420.89:58-0.59:150.37:055:41New Moon24Fri
25Sat2:591.54:240.810:42-0.510:040.27:055:42New Moon25Sat
26Sun3:501.55:060.911:26-0.510:560.27:065:42Waxing Crescent26Sun
27Mon4:421.55:470.912:11-0.47:065:43Waxing Crescent27Mon
28Tue5:351.46:301.012:56-0.27:075:44Waxing Crescent28Tue
29Wed6:301.27:161.012:540.11:42-0.17:075:44First Quarter29Wed
30Thu7:311.08:051.12:030.12:300.17:075:45First Quarter30Thu
31Fri8:430.99:011.13:200.13:210.27:085:45First Quarter31Fri
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 6:17 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 95% 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 Waxing Gibbous (95% 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