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

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Grassy Key, north side, Florida Bay, FL.
Next low tide : in 42m at 10:25 pm (-0.2 ft)
Next high tide (tomorrow) : 4:16 am (0.6 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:36 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8723921
Common Questions About Tides

Grassy Key, north side, Florida Bay, FL Tides - Jun 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:240.71:061.27:340.58:560.06:348:09Waxing Gibbous1Wed
2Thu2:210.71:471.28:140.59:38-0.16:348:09Waxing Gibbous2Thu
3Fri3:110.72:271.38:520.510:19-0.36:348:10Full Moon3Fri
4Sat3:580.83:091.49:320.410:59-0.46:348:10Full Moon4Sat
5Sun4:440.83:531.410:120.411:41-0.56:338:10Full Moon5Sun
6Mon5:280.84:381.510:550.46:338:11Full Moon6Mon
7Tue6:120.85:261.512:24-0.511:41 AM0.46:338:11Waning Gibbous7Tue
8Wed6:560.86:161.41:08-0.412:320.46:338:12Waning Gibbous8Wed
9Thu7:410.97:091.31:55-0.31:300.46:338:12Waning Gibbous9Thu
10Fri8:280.98:081.22:44-0.22:380.46:338:12Third Quarter10Fri
11Sat9:191.09:151.03:350.03:550.46:338:13Third Quarter11Sat
12Sun10:121.110:330.94:260.15:140.36:348:13Third Quarter12Sun
13Mon11:071.211:580.85:180.26:300.16:348:13Third Quarter13Mon
14Tue12:021.26:100.37:390.06:348:14Waning Crescent14Tue
15Wed1:150.812:551.37:020.48:40-0.26:348:14Waning Crescent15Wed
16Thu2:210.71:441.47:540.49:34-0.36:348:14Waning Crescent16Thu
17Fri3:170.72:321.48:440.410:22-0.36:348:15New Moon17Fri
18Sat4:060.73:171.49:320.411:05-0.46:348:15New Moon18Sat
19Sun4:490.74:001.410:180.311:46-0.46:358:15New Moon19Sun
20Mon5:280.84:411.411:030.36:358:15New Moon20Mon
21Tue6:040.85:211.312:26-0.311:48 AM0.46:358:16Waxing Crescent21Tue
22Wed6:400.86:011.31:05-0.212:330.46:358:16Waxing Crescent22Wed
23Thu7:150.96:401.21:44-0.11:210.56:358:16Waxing Crescent23Thu
24Fri7:500.97:221.12:230.02:140.56:368:16Waxing Crescent24Fri
25Sat8:280.98:071.03:030.13:140.56:368:16First Quarter25Sat
26Sun9:091.08:590.93:420.24:200.56:368:16First Quarter26Sun
27Mon9:531.010:040.74:220.35:270.46:378:16First Quarter27Mon
28Tue10:401.111:240.75:020.46:310.36:378:17First Quarter28Tue
29Wed11:301.15:450.57:300.26:378:17Waxing Gibbous29Wed
30Thu12:450.612:201.26:310.58:230.06:388:17Waxing Gibbous30Thu
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 1:20 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 spring phase. Tonight's moon is 95% 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 maximum.

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 Waxing Gibbous (95% illuminated). This places Grassy Key, north side, Florida Bay, FL in a spring tide cycle, so tidal ranges are near their weekly maximum 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