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

TIDE TIMES for Sunday, June 7, 2026
The tide is currently rising in Grassy Key, north side, Florida Bay, FL.
Next low tide (tomorrow) : 4:39 am (0.2 ft)
Next high tide : in 1h 43m at 8:58 pm (1.0 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:33 am
Moon phase : Third Quarter (58% illuminated)
Tide Station Location : Station #8723921
Common Questions About Tides

Grassy Key, north side, Florida Bay, FL Tides - Feb 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:080.48:07-0.36:510.47:056:08Waxing Gibbous1Wed
2Thu12:391.02:450.58:55-0.47:470.37:056:09Waxing Gibbous2Thu
3Fri1:281.03:140.59:33-0.48:350.27:046:10Full Moon3Fri
4Sat2:111.13:390.510:07-0.49:170.27:046:10Full Moon4Sat
5Sun2:511.14:040.610:38-0.49:560.17:036:11Full Moon5Sun
6Mon3:281.14:290.711:07-0.410:330.17:036:12Full Moon6Mon
7Tue4:051.14:560.811:35-0.311:100.17:026:12Full Moon7Tue
8Wed4:411.15:230.812:02-0.27:026:13Waning Gibbous8Wed
9Thu5:191.05:510.912:29-0.17:016:14Waning Gibbous9Thu
10Fri5:590.96:190.912:320.012:550.07:016:14Waning Gibbous10Fri
11Sat6:420.86:500.91:21-0.11:230.17:006:15Waning Gibbous11Sat
12Sun7:350.67:260.92:18-0.11:530.26:596:16Third Quarter12Sun
13Mon8:480.58:131.03:25-0.22:300.36:596:16Third Quarter13Mon
14Tue10:390.49:191.04:41-0.33:200.46:586:17Third Quarter14Tue
15Wed12:240.45:59-0.44:330.46:576:18Waning Crescent15Wed
16Thu1:280.47:12-0.55:560.46:566:18Waning Crescent16Thu
17Fri2:120.58:14-0.67:110.36:566:19Waning Crescent17Fri
18Sat1:061.32:500.69:06-0.68:160.16:556:19Waning Crescent18Sat
19Sun2:071.33:240.79:51-0.69:14-0.16:546:20New Moon19Sun
20Mon3:021.43:580.810:31-0.510:08-0.26:536:21New Moon20Mon
21Tue3:551.44:320.911:09-0.411:02-0.36:536:21New Moon21Tue
22Wed4:441.35:051.011:45-0.311:55-0.46:526:22Waxing Crescent22Wed
23Thu5:331.15:401.112:20-0.16:516:22Waxing Crescent23Thu
24Fri6:220.96:161.112:50-0.412:560.06:506:23Waxing Crescent24Fri
25Sat7:130.76:541.11:49-0.31:310.26:496:23First Quarter25Sat
26Sun8:140.57:381.02:53-0.32:090.36:486:24First Quarter26Sun
27Mon9:420.48:331.04:03-0.22:540.46:476:24First Quarter27Mon
28Tue11:530.49:470.95:19-0.23:580.46:476:25First Quarter28Tue
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 12:48 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 neap phase. Tonight's moon is 58% 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 minimum.

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 (58% illuminated). This places Grassy Key, north side, Florida Bay, FL in a neap tide cycle, so tidal ranges are near their weekly minimum 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