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

TIDE TIMES for Saturday, June 6, 2026
The tide is currently falling in Grassy Key, north side, Florida Bay, FL.
Next low tide : in 1h 34m at 3:13 am (0.0 ft)
Next high tide : 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 - Apr 2026

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:011.13:581.210:380.211:05-0.27:157:40Full Moon1Wed
2Thu4:421.14:251.211:080.211:45-0.37:137:40Full Moon2Thu
3Fri5:201.04:531.311:370.27:127:40Full Moon3Fri
4Sat5:570.95:221.312:25-0.312:050.37:117:41Waning Gibbous4Sat
5Sun6:330.85:531.21:04-0.312:310.47:107:41Waning Gibbous5Sun
6Mon7:120.76:261.21:46-0.312:560.47:097:42Waning Gibbous6Mon
7Tue7:550.67:041.12:32-0.21:170.57:097:42Waning Gibbous7Tue
8Wed8:500.57:481.13:25-0.11:380.67:087:43Third Quarter8Wed
9Thu10:110.58:451.04:290.02:090.77:077:43Third Quarter9Thu
10Fri11:550.510:021.05:380.13:490.77:067:43Third Quarter10Fri
11Sat12:480.66:420.15:570.77:057:44Third Quarter11Sat
12Sun1:180.77:340.27:170.67:047:44Waning Crescent12Sun
13Mon12:421.01:460.98:160.28:160.47:037:45Waning Crescent13Mon
14Tue1:441.12:151.08:520.29:070.27:027:45Waning Crescent14Tue
15Wed2:391.12:441.19:260.29:54-0.17:017:46Waning Crescent15Wed
16Thu3:301.13:161.39:580.310:39-0.47:007:46New Moon16Thu
17Fri4:211.13:511.410:310.311:26-0.66:597:47New Moon17Fri
18Sat5:111.04:281.511:050.36:587:47New Moon18Sat
19Sun6:020.95:101.512:14-0.711:40 AM0.36:577:47Waxing Crescent19Sun
20Mon6:540.85:561.51:05-0.712:170.46:567:48Waxing Crescent20Mon
21Tue7:500.76:471.42:01-0.612:590.46:557:48Waxing Crescent21Tue
22Wed8:540.67:471.33:04-0.41:500.56:557:49First Quarter22Wed
23Thu10:090.69:001.24:13-0.23:030.66:547:49First Quarter23Thu
24Fri11:240.710:291.15:24-0.14:390.66:537:50First Quarter24Fri
25Sat12:230.86:290.16:140.56:527:50First Quarter25Sat
26Sun1:070.97:230.27:330.46:517:51Waxing Gibbous26Sun
27Mon1:131.11:441.18:080.38:360.26:517:51Waxing Gibbous27Mon
28Tue2:141.02:171.28:460.49:280.06:507:52Waxing Gibbous28Tue
29Wed3:061.02:471.39:210.410:12-0.16:497:52Waxing Gibbous29Wed
30Thu3:511.03:161.39:540.410:52-0.26:487:53Full Moon30Thu
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 6:03 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