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

TIDE TIMES for Saturday, June 6, 2026
The tide is currently rising in Grassy Key, north side, Florida Bay, FL.
Next low tide : 2:28 pm (0.7 ft)
Next high tide : in 4h 44m at 8:53 am (0.8 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:33 am
Moon phase : Third Quarter (67% illuminated)
Tide Station Location : Station #8723921
Common Questions About Tides

Grassy Key, north side, Florida Bay, FL Tides - Oct 2026

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:351.88:211.012:560.92:390.27:157:10Waning Gibbous1Thu
2Fri7:261.79:380.91:341.03:500.37:167:09Third Quarter2Fri
3Sat8:321.711:130.92:241.15:090.57:167:08Third Quarter3Sat
4Sun9:571.63:421.26:280.57:177:07Third Quarter4Sun
5Mon12:291.011:30 AM1.65:221.27:330.67:177:06Waning Crescent5Mon
6Tue1:181.112:491.66:521.18:240.77:177:05Waning Crescent6Tue
7Wed1:561.31:541.78:040.99:050.77:187:04Waning Crescent7Wed
8Thu2:301.42:491.69:040.79:400.87:187:03Waning Crescent8Thu
9Fri3:021.53:381.69:550.510:130.87:197:02New Moon9Fri
10Sat3:331.64:221.510:410.410:450.97:197:01New Moon10Sat
11Sun4:031.75:031.411:240.311:160.97:207:00New Moon11Sun
12Mon4:341.75:421.312:060.37:206:59Waxing Crescent12Mon
13Tue5:051.76:211.212:470.37:206:58Waxing Crescent13Tue
14Wed5:391.77:001.112:151.01:310.47:216:57Waxing Crescent14Wed
15Thu6:151.67:441.012:431.02:190.47:216:57Waxing Crescent15Thu
16Fri6:551.68:381.01:101.13:140.67:226:56First Quarter16Fri
17Sat7:431.59:540.91:371.24:200.77:226:55First Quarter17Sat
18Sun8:411.411:291.02:181.35:290.77:236:54First Quarter18Sun
19Mon9:561.44:091.36:310.87:236:53First Quarter19Mon
20Tue12:251.111:16 AM1.45:551.37:210.87:246:52First Quarter20Tue
21Wed12:571.212:271.47:071.28:010.87:246:51Waxing Gibbous21Wed
22Thu1:251.31:261.58:031.08:350.97:256:50Waxing Gibbous22Thu
23Fri1:531.42:191.58:510.89:060.97:256:50Waxing Gibbous23Fri
24Sat2:221.53:081.59:350.59:370.97:266:49Full Moon24Sat
25Sun2:531.63:571.410:180.310:080.97:276:48Full Moon25Sun
26Mon3:261.74:451.411:020.110:400.97:276:47Full Moon26Mon
27Tue4:031.85:341.311:480.011:150.97:286:47Full Moon27Tue
28Wed4:441.86:251.112:37-0.17:286:46Waning Gibbous28Wed
29Thu5:291.97:191.01:310.07:296:45Waning Gibbous29Thu
30Fri6:211.88:181.012:310.92:310.17:296:44Waning Gibbous30Fri
31Sat7:191.79:261.01:201.03:390.37:306:44Third Quarter31Sat
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 11:40 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 transitional phase. Tonight's moon is 67% 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 Third Quarter (67% 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