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

TIDE TIMES for Sunday, June 7, 2026
The tide is currently falling in Grassy Key, north side, Florida Bay, FL.
Next low tide : in 27m at 3:56 am (0.1 ft)
Next high tide : 9:35 am (0.8 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 - Apr 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:180.58:361.14:14-0.22:210.67:147:40Third Quarter1Mon
2Tue12:040.55:30-0.13:420.67:137:40Third Quarter2Tue
3Wed1:050.66:44-0.15:410.67:127:41Third Quarter3Wed
4Thu1:420.77:47-0.17:130.57:117:41Waning Crescent4Thu
5Fri12:591.22:150.88:37-0.18:240.37:107:41Waning Crescent5Fri
6Sat2:061.32:471.09:200.09:230.07:097:42Waning Crescent6Sat
7Sun3:051.33:201.29:580.010:17-0.37:087:42New Moon7Sun
8Mon4:001.23:541.310:340.111:08-0.57:077:43New Moon8Mon
9Tue4:521.24:291.411:090.211:58-0.67:067:43New Moon9Tue
10Wed5:421.05:071.511:440.27:057:44Waxing Crescent10Wed
11Thu6:320.95:461.412:48-0.612:190.37:047:44Waxing Crescent11Thu
12Fri7:230.76:291.41:41-0.612:550.47:037:45Waxing Crescent12Fri
13Sat8:180.67:161.32:37-0.41:340.57:027:45Waxing Crescent13Sat
14Sun9:270.58:101.23:40-0.32:220.57:017:45First Quarter14Sun
15Mon11:020.59:191.14:50-0.13:350.67:007:46First Quarter15Mon
16Tue12:290.66:020.05:140.76:597:46First Quarter16Tue
17Wed1:160.77:060.16:440.66:597:47First Quarter17Wed
18Thu12:151.01:460.87:580.27:540.56:587:47Waxing Gibbous18Thu
19Fri1:211.02:100.98:390.38:490.46:577:48Waxing Gibbous19Fri
20Sat2:131.02:331.09:120.39:330.26:567:48Waxing Gibbous20Sat
21Sun2:561.02:561.19:410.310:110.16:557:49Waxing Gibbous21Sun
22Mon3:371.03:201.210:080.410:47-0.16:547:49Full Moon22Mon
23Tue4:151.03:471.210:330.411:21-0.26:537:50Full Moon23Tue
24Wed4:540.94:151.310:570.411:56-0.36:537:50Full Moon24Wed
25Thu5:340.94:461.311:210.46:527:50Full Moon25Thu
26Fri6:160.85:181.312:33-0.411:46 AM0.56:517:51Waning Gibbous26Fri
27Sat7:020.75:541.31:14-0.412:140.56:507:51Waning Gibbous27Sat
28Sun7:530.66:351.32:01-0.412:460.66:497:52Waning Gibbous28Sun
29Mon8:540.67:261.32:56-0.31:270.66:497:52Waning Gibbous29Mon
30Tue10:060.68:311.23:59-0.22:300.76:487:53Third Quarter30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723921)

Common Questions About Grassy Key, north side, Florida Bay, FL Tides

Show All
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 6:45 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