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 (tomorrow) : 3:56 am (0.1 ft)
Next high tide : in 50m at 7:59 pm (1.1 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 - Dec 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:281.54:090.910:25-0.19:320.76:515:34New Moon1Sun
2Mon3:051.54:500.911:03-0.210:030.76:525:34New Moon2Mon
3Tue3:441.55:320.811:43-0.210:380.76:535:34Waxing Crescent3Tue
4Wed4:261.56:160.812:27-0.16:535:34Waxing Crescent4Wed
5Thu5:121.57:020.81:150.06:545:34Waxing Crescent5Thu
6Fri6:031.47:510.912:100.82:060.16:555:34Waxing Crescent6Fri
7Sat7:021.38:410.91:160.82:590.26:555:35First Quarter7Sat
8Sun8:131.29:311.02:410.73:510.46:565:35First Quarter8Sun
9Mon9:371.110:191.14:100.64:420.56:575:35First Quarter9Mon
10Tue11:041.011:071.35:300.45:310.66:575:35Waxing Gibbous10Tue
11Wed12:221.06:400.16:190.66:585:36Waxing Gibbous11Wed
12Thu1:290.97:41-0.17:050.66:595:36Waxing Gibbous12Thu
13Fri12:401.52:270.98:37-0.47:510.66:595:36Full Moon13Fri
14Sat1:271.63:190.89:29-0.58:370.57:005:37Full Moon14Sat
15Sun2:161.64:060.810:17-0.59:220.47:005:37Full Moon15Sun
16Mon3:041.64:490.711:04-0.510:080.47:015:37Full Moon16Mon
17Tue3:531.65:300.711:50-0.410:550.47:025:38Waning Gibbous17Tue
18Wed4:401.56:100.812:36-0.37:025:38Waning Gibbous18Wed
19Thu5:271.46:500.81:23-0.17:035:39Waning Gibbous19Thu
20Fri6:141.37:310.812:400.52:090.17:035:39Waning Gibbous20Fri
21Sat7:041.18:140.91:450.62:550.27:045:40Third Quarter21Sat
22Sun7:591.08:590.92:590.63:410.47:045:40Third Quarter22Sun
23Mon9:080.89:451.04:150.54:250.57:055:41Third Quarter23Mon
24Tue10:320.710:301.05:260.45:090.67:055:41Third Quarter24Tue
25Wed11:570.711:151.16:290.35:510.67:055:42Waning Crescent25Wed
26Thu1:050.77:250.16:330.67:065:42Waning Crescent26Thu
27Fri1:580.68:13-0.17:130.67:065:43Waning Crescent27Fri
28Sat12:421.22:420.68:55-0.27:520.57:075:44Waning Crescent28Sat
29Sun1:251.23:220.69:35-0.48:300.57:075:44New Moon29Sun
30Mon2:081.33:590.610:13-0.59:090.47:075:45New Moon30Mon
31Tue2:521.34:360.710:52-0.59:500.47:085:46New Moon31Tue
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 11:57 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 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