Grassy Key, North Side, Florida Bay, FL Tide Chart & Tide Times

NOAA tide station 8723921 · Florida · updated Oct 24, 2026

Sat, Oct 24: High tide 2:22 AM (1.5 ft) and 3:08 PM (1.5 ft); low tide 9:35 AM (0.5 ft) and 9:37 PM (0.9 ft).

Tide todayHigh 2:22 AM · High 3:08 PMLow 9:35 AM · Low 9:37 PM

Today's range1.0 ft0.5 → 1.5 ft (MLLW)

WindLoading…

Sun7:26 AM – 6:48 PMFirst light 7:02 AM · Last light 7:12 PM

Wind: observed at NOAA CO-OPS station 8723970 (Vaca Key, Florida Bay), 11 mi away; forecast from the NOAA National Weather Service (api.weather.gov).

Grassy Key, North Side, Florida Bay tides — next 3 days

Shaded = night · heights in feet above MLLW · local time

YesterdayFri, Oct 23

High 1:53 AM 1.4 ft
Low 8:51 AM 0.8 ft
High 2:19 PM 1.5 ft
Low 9:06 PM 0.9 ft

First light 7:02 AMSunrise 7:26 AMSunset 6:49 PMLast light 7:13 PM

TodaySat, Oct 24

High 2:22 AM 1.5 ft
Low 9:35 AM 0.5 ft
High 3:08 PM 1.5 ft
Low 9:37 PM 0.9 ft

First light 7:02 AMSunrise 7:26 AMSunset 6:48 PMLast light 7:12 PM

TomorrowSun, Oct 25

High 2:53 AM 1.6 ft
Low 10:18 AM 0.3 ft
High 3:57 PM 1.4 ft
Low 10:08 PM 0.9 ft

First light 7:03 AMSunrise 7:27 AMSunset 6:48 PMLast light 7:11 PM

MondayMon, Oct 26

High 3:26 AM 1.7 ft
Low 11:02 AM 0.1 ft
High 4:45 PM 1.4 ft
Low 10:40 PM 0.9 ft

First light 7:03 AMSunrise 7:27 AMSunset 6:47 PMLast light 7:11 PM

TuesdayTue, Oct 27

High 4:03 AM 1.8 ft
Low 11:48 AM -0.0 ft
High 5:34 PM 1.3 ft
Low 11:15 PM 0.9 ft

First light 7:04 AMSunrise 7:28 AMSunset 6:46 PMLast light 7:10 PM

Grassy Key, North Side, Florida Bay tide table — next 8 days

Fri, Oct 23	High 1:53 AM 1.40 ft	Low 8:51 AM 0.77 ft	High 2:19 PM 1.49 ft	Low 9:06 PM 0.88 ft
Sat, Oct 24	High 2:22 AM 1.52 ft	Low 9:35 AM 0.52 ft	High 3:08 PM 1.47 ft	Low 9:37 PM 0.88 ft
Sun, Oct 25	High 2:53 AM 1.64 ft	Low 10:18 AM 0.28 ft	High 3:57 PM 1.43 ft	Low 10:08 PM 0.88 ft
Mon, Oct 26	High 3:26 AM 1.74 ft	Low 11:02 AM 0.09 ft	High 4:45 PM 1.35 ft	Low 10:40 PM 0.88 ft
Tue, Oct 27	High 4:03 AM 1.81 ft	Low 11:48 AM -0.03 ft	High 5:34 PM 1.25 ft	Low 11:15 PM 0.88 ft
Wed, Oct 28	High 4:44 AM 1.85 ft	Low 12:37 PM -0.06 ft	High 6:25 PM 1.14 ft	Low 11:51 PM 0.89 ft
Thu, Oct 29	High 5:29 AM 1.85 ft	Low 1:31 PM 0.00 ft	High 7:19 PM 1.05 ft
Fri, Oct 30	Low 12:31 AM 0.92 ft	High 6:21 AM 1.81 ft	Low 2:31 PM 0.14 ft	High 8:18 PM 0.98 ft
Sat, Oct 31	Low 1:20 AM 0.98 ft	High 7:19 AM 1.74 ft	Low 3:39 PM 0.30 ft	High 9:26 PM 0.96 ft

Times are local (standard/daylight). Heights in feet above MLLW.

Nearby tide stations

Toms Harbor Channel, Hwy. 1 Bridge, FL 1.1 mi
Grassy Key, South Side, Hawk Channel, FL 1.6 mi
Duck Key, Hawk Channel, FL 1.7 mi
Toms Harbor Cut, FL 2.2 mi
Conch Key, Eastern End, FL 3.8 mi
Fat Deer Key, Florida Bay, FL 5.5 mi
Long Key, Western End, FL 6.1 mi
Key Colony Beach, FL 6.1 mi

About this station

NOAA station ID: 8723921
Type: Subordinate station (offsets from NOAA station 8724580)
Coordinates: 24.7717, -80.9400
Datum: MLLW (feet)
Time zone: America/New_York

FAQ

When is high tide today at Grassy Key, North Side, Florida Bay, FL?

On Sat, Oct 24, predicted high tide at Grassy Key, North Side, Florida Bay, FL is at 2:22 AM, 3:08 PM local time.

When is low tide today at Grassy Key, North Side, Florida Bay, FL?

On Sat, Oct 24, predicted low tide at Grassy Key, North Side, Florida Bay, FL is at 9:35 AM, 9:37 PM local time.

Where does this tide data come from?

Predictions come from NOAA's Center for Operational Oceanographic Products and Services (CO-OPS), station 8723921. Heights are in feet relative to Mean Lower Low Water (MLLW).