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

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Grassy Key, north side, Florida Bay, FL.
Next low tide : 11:09 am (0.5 ft)
Next high tide : in 2h 05m at 5:54 am (0.7 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:38 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8723921
Common Questions About Tides

Grassy Key, north side, Florida Bay, FL Tides - Jun 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:470.84:001.310:330.411:43-0.36:348:09Full Moon1Sun
2Mon5:230.84:341.311:090.46:348:09Full Moon2Mon
3Tue5:590.85:101.312:20-0.311:44 AM0.46:348:10Waning Gibbous3Tue
4Wed6:360.85:471.312:58-0.312:190.56:348:10Waning Gibbous4Wed
5Thu7:140.86:261.21:37-0.212:570.56:338:10Waning Gibbous5Thu
6Fri7:550.87:071.12:17-0.11:400.66:338:11Waning Gibbous6Fri
7Sat8:380.87:531.12:590.02:350.66:338:11Third Quarter7Sat
8Sun9:240.98:471.03:440.13:440.66:338:12Third Quarter8Sun
9Mon10:130.99:540.94:300.24:580.66:338:12Third Quarter9Mon
10Tue11:021.011:120.85:170.26:090.46:338:12Third Quarter10Tue
11Wed11:501.16:050.37:120.26:338:13Waning Crescent11Wed
12Thu12:300.812:371.26:540.38:100.06:348:13Waning Crescent12Thu
13Fri1:400.81:231.37:430.39:04-0.26:348:13Waning Crescent13Fri
14Sat2:420.82:101.48:310.39:55-0.46:348:14Waning Crescent14Sat
15Sun3:380.82:591.59:190.310:45-0.66:348:14New Moon15Sun
16Mon4:300.83:491.510:080.311:34-0.66:348:14New Moon16Mon
17Tue5:200.84:401.610:570.26:348:15New Moon17Tue
18Wed6:090.95:321.512:23-0.611:48 AM0.26:348:15Waxing Crescent18Wed
19Thu6:570.96:261.41:13-0.512:430.36:358:15Waxing Crescent19Thu
20Fri7:450.97:211.32:04-0.41:440.36:358:15Waxing Crescent20Fri
21Sat8:351.08:201.22:55-0.22:530.46:358:16First Quarter21Sat
22Sun9:281.09:261.03:480.04:090.46:358:16First Quarter22Sun
23Mon10:241.110:430.94:400.15:260.36:358:16First Quarter23Mon
24Tue11:191.15:320.36:390.26:368:16First Quarter24Tue
25Wed12:050.812:121.26:220.37:440.16:368:16Waxing Gibbous25Wed
26Thu1:190.71:001.27:120.48:410.06:368:16Waxing Gibbous26Thu
27Fri2:200.71:431.37:590.49:30-0.16:378:17Waxing Gibbous27Fri
28Sat3:110.72:231.38:450.410:12-0.16:378:17Waxing Gibbous28Sat
29Sun3:530.73:011.39:270.410:50-0.26:378:17Full Moon29Sun
30Mon4:300.73:381.310:070.411:26-0.26:388:17Full Moon30Mon
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 8:31 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 97% 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 Full Moon (97% 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