Shorebite

Grassy Key, north side, Florida Bay tide chart

Florida · near Duck Key (2 mi) · NOAA station 8723921 · times in local time (EDT)

Tides today, Sunday, October 11

12 AM6 AM12 PM6 PM4:03 AM · 1.7 ft11:24 AM · 0.3 ft5:03 PM · 1.4 ft11:16 PM · 0.9 ft1.7 ft
  • High 4:03 AM 1.7 ft
  • Low 11:24 AM 0.3 ft
  • High 5:03 PM 1.4 ft
  • Low 11:16 PM 0.9 ft

Sunrise 7:20 AM · Sunset 7:02 PM · New moon (0%)

Fishing forecast

Hour by hour at Grassy Key, north side, Florida Bay
98Excellent

Best times

1:00 AM–2:00 AM and 1:00 PM–3:00 PM

New moon (0% lit)

    Biting around here in October

    • Snook In seasonMoving tide at night around docks and passes (watch closed seasons)
    • Redfish In seasonShallow flats on a rising tide
    • Spotted seatrout In seasonGrass flats with moving water
    • Spanish mackerel In seasonClean moving water near inlets and piers
    • Pompano In seasonSurf troughs on the incoming tide

    General seasonal guide for Florida. Seasons, sizes and limits vary, so check your state rules before keeping fish.

    Weather and conditions at Grassy Key, north side, Florida Bay

    Loading the National Weather Service forecast… Open it on weather.gov.

    Marine forecast: Bayside and Gulfside from Craig Key to West End of Seven Mile Bridge

    Loading the latest National Weather Service forecast… Open it on weather.gov.

    • Water temperature —
    Marine radio: weather channels and VHF

    NOAA Weather Radio

    • 162.450 MHz WX5 WWG60, Tea Table Key, FL (19 mi)
    • 162.400 MHz WX2 WXJ95, Key West, FL (38 mi)

    To get alerts on a weather alert radio, program county code 012087 (Mainland Monroe).

    VHF marine channels

    • Ch 16 Distress, safety and calling
    • Ch 9 Boater-to-boater calling
    • Ch 22A Coast Guard safety broadcasts
    • Ch 13 Bridge-to-bridge (big ships, drawbridges)
    • Ch 68, 69, 71, 72, 78A Recreational chat

    Weather radio broadcasts are continuous; VHF channels are the US standard. Local harbors and bridges may use others, so check your chart.

    Live readings from NOAA and the National Weather Service, loaded when you open this page.

    How was it out there?

    Been to Grassy Key, north side, Florida Bay recently? Tap what you saw to help the next person. No account needed.

    Recent reports

    • No reports in the last 30 days yet. Be the first.

    Reports are from visitors and may be wrong. Inappropriate ones are removed.

    Tide times this week

    DayHigh and low tidesSunrise / sunsetMoon
    Sun Oct 11H 4:03 AM 1.7 ftL 11:24 AM 0.3 ftH 5:03 PM 1.4 ftL 11:16 PM 0.9 ft7:20 AM / 7:02 PMNew moon (0%)
    Mon Oct 12H 4:34 AM 1.7 ftL 12:06 PM 0.3 ftH 5:42 PM 1.3 ftL 11:46 PM 0.9 ft7:21 AM / 7:01 PMNew moon (2%)
    Tue Oct 13H 5:05 AM 1.7 ftL 12:47 PM 0.3 ftH 6:21 PM 1.2 ft7:21 AM / 7:00 PMWaxing crescent (6%)
    Wed Oct 14L 12:15 AM 1.0 ftH 5:39 AM 1.7 ftL 1:31 PM 0.3 ftH 7:00 PM 1.1 ft7:22 AM / 6:59 PMWaxing crescent (12%)
    Thu Oct 15L 12:43 AM 1.0 ftH 6:15 AM 1.6 ftL 2:19 PM 0.5 ftH 7:44 PM 1.0 ft7:22 AM / 6:58 PMWaxing crescent (19%)
    Fri Oct 16L 1:10 AM 1.1 ftH 6:55 AM 1.6 ftL 3:14 PM 0.6 ftH 8:38 PM 1.0 ft7:23 AM / 6:57 PMWaxing crescent (28%)
    Sat Oct 17L 1:37 AM 1.2 ftH 7:43 AM 1.5 ftL 4:20 PM 0.7 ftH 9:54 PM 0.9 ft7:23 AM / 6:56 PMFirst quarter (38%)

    Tidal currents near Grassy Key, north side, Florida Bay

    From NOAA's current predictions for Long Key Viaduct, 5.1 miles away. Slack is when the current turns and the water is calmest; flood runs in with the rising tide and ebb runs out with the falling tide. Times are the peak of each run, in knots. The flood runs toward the N (349°) and the ebb toward the S (170°). The strongest current this week is 1.5 knots.

    DaySlack water and peak currents
    Sun Oct 11Slack 12:59 AMEbb 3:50 AM 1.5 knSlack 7:05 AMFlood 10:20 AM 1.1 knSlack 1:46 PMEbb 4:20 PM 1.3 knSlack 7:18 PMFlood 10:00 PM 1.0 kn
    Mon Oct 12Slack 1:28 AMEbb 4:20 AM 1.5 knSlack 7:41 AMFlood 10:47 AM 1.1 knSlack 2:26 PMEbb 4:57 PM 1.2 knSlack 7:57 PMFlood 10:36 PM 1.0 kn
    Tue Oct 13Slack 2:00 AMEbb 4:53 AM 1.5 knSlack 8:19 AMFlood 11:17 AM 1.1 knSlack 3:07 PMEbb 5:36 PM 1.1 knSlack 8:42 PMFlood 11:18 PM 0.9 kn
    Wed Oct 14Slack 2:36 AMEbb 5:29 AM 1.4 knSlack 8:58 AMFlood 11:51 AM 1.0 knSlack 3:50 PMEbb 6:17 PM 1.0 knSlack 9:33 PM
    Thu Oct 15Flood 12:04 AM 0.8 knSlack 3:17 AMEbb 6:09 AM 1.3 knSlack 9:42 AMFlood 12:32 PM 0.9 knSlack 4:36 PMEbb 7:04 PM 0.9 knSlack 10:29 PM
    Fri Oct 16Flood 12:55 AM 0.7 knSlack 4:03 AMEbb 6:53 AM 1.2 knSlack 10:33 AMFlood 1:19 PM 0.8 knSlack 5:27 PMEbb 8:02 PM 0.8 knSlack 11:31 PM
    Sat Oct 17Flood 1:53 AM 0.6 knSlack 4:57 AMEbb 7:46 AM 1.0 knSlack 11:34 AMFlood 2:18 PM 0.7 knSlack 6:27 PMEbb 9:25 PM 0.7 kn

    Current predictions can differ a lot over short distances: check the station location on NOAA before planning a passage.

    Best fishing times at Grassy Key, north side, Florida Bay

    The bite score (0 to 100) adds up what anglers watch most: moving water (a tide running harder than usual here scores higher), solunar periods (major periods of about two hours centred on the moon overhead or underfoot, minor periods of about an hour on moonrise and moonset), dawn and dusk light, and how close it is to the new or full moon. Best times are the stretches of the day scoring near that day's top.

    DayBite scoreBest timesMajor periodsMinor periods
    Sun Oct 1198 · Excellent1:00 AM–2:00 AM, 1:00 PM–3:00 PM12:36 AM–2:36 AM, 12:59 PM–2:59 PM7:48 AM–8:48 AM, 7:05 PM–8:05 PM
    Mon Oct 1292 · Excellent2:00 PM–3:00 PM, 2:00 AM–3:00 AM1:22 AM–3:22 AM, 1:45 PM–3:45 PM8:45 AM–9:45 AM, 7:42 PM–8:42 PM
    Tue Oct 1377 · Excellent3:00 PM–4:00 PM2:09 AM–4:09 AM, 2:34 PM–4:34 PM9:41 AM–10:41 AM, 8:23 PM–9:23 PM
    Wed Oct 1460 · Good4:00 PM–5:00 PM, 3:00 AM–4:00 AM2:58 AM–4:58 AM, 3:23 PM–5:23 PM10:37 AM–11:37 AM, 9:08 PM–10:08 PM
    Thu Oct 1545 · Fair5:00 PM–6:00 PM, 4:00 AM–5:00 AM3:49 AM–5:49 AM, 4:14 PM–6:14 PM11:31 AM–12:31 PM, 9:58 PM–10:58 PM
    Fri Oct 1643 · Fair6:00 PM–7:00 PM4:40 AM–6:40 AM, 5:05 PM–7:05 PM12:21 PM–1:21 PM, 10:50 PM–11:50 PM
    Sat Oct 1744 · Fair6:00 PM–8:00 PM, 6:00 AM–7:00 AM5:30 AM–7:30 AM, 5:55 PM–7:55 PM1:07 PM–2:07 PM

    A planning aid, not a guarantee. Wind, water clarity, bait and pressure changes matter too; the forecast above adds live wind and pressure when you open the page.

    Best daylight low tides in the next two weeks

    The lowest water that falls between sunrise and sunset, for tide pooling and beachcombing.

    1. 0.3 ft at 12:06 PM on Monday, October 12
    2. 0.3 ft at 12:47 PM on Tuesday, October 13
    3. 0.3 ft at 11:24 AM on Sunday, October 11
    4. 0.3 ft at 1:31 PM on Wednesday, October 14
    5. 0.5 ft at 2:19 PM on Thursday, October 15
    6. 0.5 ft at 9:35 AM on Saturday, October 24

    Tide table: October 11 to November 10, 2026

    Full 2026 tide table Full 2027 tide table

    DayHigh and low tidesSunrise / sunset
    Sun Oct 11H 4:03 AM 1.7 ftL 11:24 AM 0.3 ftH 5:03 PM 1.4 ftL 11:16 PM 0.9 ft7:20 AM / 7:02 PM
    Mon Oct 12H 4:34 AM 1.7 ftL 12:06 PM 0.3 ftH 5:42 PM 1.3 ftL 11:46 PM 0.9 ft7:21 AM / 7:01 PM
    Tue Oct 13H 5:05 AM 1.7 ftL 12:47 PM 0.3 ftH 6:21 PM 1.2 ft7:21 AM / 7:00 PM
    Wed Oct 14L 12:15 AM 1.0 ftH 5:39 AM 1.7 ftL 1:31 PM 0.3 ftH 7:00 PM 1.1 ft7:22 AM / 6:59 PM
    Thu Oct 15L 12:43 AM 1.0 ftH 6:15 AM 1.6 ftL 2:19 PM 0.5 ftH 7:44 PM 1.0 ft7:22 AM / 6:58 PM
    Fri Oct 16L 1:10 AM 1.1 ftH 6:55 AM 1.6 ftL 3:14 PM 0.6 ftH 8:38 PM 1.0 ft7:23 AM / 6:57 PM
    Sat Oct 17L 1:37 AM 1.2 ftH 7:43 AM 1.5 ftL 4:20 PM 0.7 ftH 9:54 PM 0.9 ft7:23 AM / 6:56 PM
    Sun Oct 18L 2:18 AM 1.3 ftH 8:41 AM 1.4 ftL 5:29 PM 0.7 ftH 11:29 PM 1.0 ft7:24 AM / 6:55 PM
    Mon Oct 19L 4:09 AM 1.3 ftH 9:56 AM 1.4 ftL 6:31 PM 0.8 ft7:24 AM / 6:54 PM
    Tue Oct 20H 12:25 AM 1.1 ftL 5:55 AM 1.3 ftH 11:16 AM 1.4 ftL 7:21 PM 0.8 ft7:25 AM / 6:53 PM
    Wed Oct 21H 12:57 AM 1.2 ftL 7:07 AM 1.2 ftH 12:27 PM 1.4 ftL 8:01 PM 0.8 ft7:25 AM / 6:53 PM
    Thu Oct 22H 1:25 AM 1.3 ftL 8:03 AM 1.0 ftH 1:26 PM 1.5 ftL 8:35 PM 0.9 ft7:26 AM / 6:52 PM
    Fri Oct 23H 1:53 AM 1.4 ftL 8:51 AM 0.8 ftH 2:19 PM 1.5 ftL 9:06 PM 0.9 ft7:26 AM / 6:51 PM
    Sat Oct 24H 2:22 AM 1.5 ftL 9:35 AM 0.5 ftH 3:08 PM 1.5 ftL 9:37 PM 0.9 ft7:27 AM / 6:50 PM
    Sun Oct 25H 2:53 AM 1.6 ftL 10:18 AM 0.3 ftH 3:57 PM 1.4 ftL 10:08 PM 0.9 ft7:27 AM / 6:49 PM
    Mon Oct 26H 3:26 AM 1.7 ftL 11:02 AM 0.1 ftH 4:45 PM 1.4 ftL 10:40 PM 0.9 ft7:28 AM / 6:49 PM
    Tue Oct 27H 4:03 AM 1.8 ftL 11:48 AM 0.0 ftH 5:34 PM 1.2 ftL 11:15 PM 0.9 ft7:28 AM / 6:48 PM
    Wed Oct 28H 4:44 AM 1.9 ftL 12:37 PM -0.1 ftH 6:25 PM 1.1 ftL 11:51 PM 0.9 ft7:29 AM / 6:47 PM
    Thu Oct 29H 5:29 AM 1.9 ftL 1:31 PM 0.0 ftH 7:19 PM 1.1 ft7:30 AM / 6:46 PM
    Fri Oct 30L 12:31 AM 0.9 ftH 6:21 AM 1.8 ftL 2:31 PM 0.1 ftH 8:18 PM 1.0 ft7:30 AM / 6:46 PM
    Sat Oct 31L 1:20 AM 1.0 ftH 7:19 AM 1.7 ftL 3:39 PM 0.3 ftH 9:26 PM 1.0 ft7:31 AM / 6:45 PM
    Sun Nov 1L 1:25 AM 1.1 ftH 7:29 AM 1.6 ftL 3:50 PM 0.5 ftH 9:39 PM 1.0 ft6:31 AM / 5:44 PM
    Mon Nov 2L 2:57 AM 1.1 ftH 8:53 AM 1.5 ftL 4:56 PM 0.6 ftH 10:43 PM 1.1 ft6:32 AM / 5:44 PM
    Tue Nov 3L 4:35 AM 1.0 ftH 10:23 AM 1.5 ftL 5:53 PM 0.7 ftH 11:32 PM 1.2 ft6:33 AM / 5:43 PM
    Wed Nov 4L 5:58 AM 0.9 ftH 11:43 AM 1.4 ftL 6:40 PM 0.8 ft6:33 AM / 5:43 PM
    Thu Nov 5H 12:13 AM 1.4 ftL 7:06 AM 0.7 ftH 12:48 PM 1.4 ftL 7:21 PM 0.9 ft6:34 AM / 5:42 PM
    Fri Nov 6H 12:50 AM 1.5 ftL 8:02 AM 0.5 ftH 1:43 PM 1.4 ftL 7:58 PM 0.9 ft6:35 AM / 5:41 PM
    Sat Nov 7H 1:23 AM 1.6 ftL 8:50 AM 0.3 ftH 2:32 PM 1.3 ftL 8:33 PM 0.9 ft6:35 AM / 5:41 PM
    Sun Nov 8H 1:56 AM 1.6 ftL 9:32 AM 0.2 ftH 3:15 PM 1.2 ftL 9:07 PM 0.9 ft6:36 AM / 5:40 PM
    Mon Nov 9H 2:28 AM 1.7 ftL 10:12 AM 0.1 ftH 3:54 PM 1.1 ftL 9:39 PM 0.9 ft6:37 AM / 5:40 PM
    Tue Nov 10H 3:01 AM 1.7 ftL 10:50 AM 0.1 ftH 4:31 PM 1.1 ftL 10:11 PM 0.9 ft6:37 AM / 5:40 PM

    Heights are in feet above mean lower low water (MLLW), the zero line on most US nautical charts. A minus height means the water drops below that line.

    Around Grassy Key, north side, Florida Bay

    Beaches

    Boat ramps

    Marinas

    Distances from the tide station. Places from © OpenStreetMap contributors; links open in Google Maps.

    Fish in the waters around Grassy Key, north side, Florida Bay

    40 kinds of fish, sharks and rays have been recorded within 15 km (about 9 miles) of this spot, most often Bluehead, Slippery Dick, Bicolor Damselfish. The bar shows how many records each has.

    • Bluehead Thalassoma bifasciatumSalt water · 2909 records
    • Slippery Dick Halichoeres bivittatusSalt water · 2329 records
    • Bicolor Damselfish Stegastes partitusSalt water · 2145 records
    • Redband Parrotfish Sparisoma aurofrenatumSalt water · 2112 records
    • White Grunt Haemulon plumieriiSalt water · 1994 records
    • Striped Parrotfish Scarus iseriSalt water · 1981 records
    • Yellowhead Wrasse Halichoeres garnotiSalt water · 1647 records
    • Ocean Surgeon Acanthurus bahianusSalt water · 1541 records
    • Blue Tang Acanthurus coeruleusSalt water · 1512 records
    • Clown Wrasse Halichoeres maculipinnaSalt water · 1487 records
    • Yellowtail Snapper Ocyurus chrysurusSalt water · 1257 records
    • Hogfish Lachnolaimus maximusSalt water · 1046 records
    • Doctorfish Acanthurus chirurgusSalt water · 1023 records
    • Bluestriped Grunt Haemulon sciurusSalt water · 993 records
    • Stoplight Parrotfish Sparisoma virideSalt water · 814 records
    • Cocoa Damselfish Stegastes variabilisSalt water · 780 records
    • Grey Snapper Lutjanus griseusSalt water · 774 records
    • Tomtate Grunt Haemulon aurolineatumSalt water · 724 records
    • Gray Angelfish Pomacanthus arcuatusSalt water · 714 records
    • Bridled Goby Coryphopterus glaucofraenumSalt water · 677 records
    • Porkfish Anisotremus virginicusSalt water · 635 records
    • Bar Jack Caranx ruberSalt water · 600 records
    • French Grunt Haemulon flavolineatumSalt water · 587 records
    • Greenblotch Parrotfish Sparisoma atomariumSalt water · 483 records
    • Redtail Parrotfish Sparisoma chrysopterumSalt water · 480 records
    • Puddingwife Wrasse Halichoeres radiatusSalt water · 479 records
    • Spotfin Butterflyfish Chaetodon ocellatusSalt water · 408 records
    • Masked Goby Coryphopterus personatusSalt water · 381 records
    • Sergeant Major Abudefduf saxatilisSalt water · 374 records
    • Princess Parrotfish Scarus taeniopterusSalt water · 365 records
    • Redfin Parrotfish Sparisoma rubripinneSalt water · 360 records
    • Schoolmaster Snapper Lutjanus apodusSalt water · 357 records
    • Blue Chromis Chromis cyaneaSalt water · 335 records
    • Saucereye Porgy Calamus calamusSalt water · 317 records
    • Sharpnose Puffer Canthigaster rostrataSalt water · 314 records
    • Blackear Wrasse Halichoeres poeyiSalt water · 309 records
    • Spotted Goatfish Pseudupeneus maculatusSalt water · 300 records
    • Foureye Butterflyfish Chaetodon capistratusSalt water · 288 records
    • Graysby Cephalopholis cruentataSalt water · 285 records
    • Beaugregory Stegastes leucostictusSalt water · 269 records

    Records from GBIF datasets released under CC0 or CC BY 4.0 (museum collections, surveys and community sightings). It shows what has been found here, not a complete list. Check your state rules before keeping fish.

    About the tides at Grassy Key, north side, Florida Bay

    Grassy Key, north side, Florida Bay gets two high tides and two low tides most days, but one high is clearly higher than the other (and one low clearly lower), which is called a mixed tide. Over the next month the water typically rises or falls about 0.7 ft between a high and the next low.

    The biggest swings in this window come around Wednesday, October 28, when the day's range reaches 1.9 ft, and again around Tuesday, November 10 (1.6 ft). Here the biggest ranges depend on the moon's phase and on how far north or south of the equator it is, so they don't always line up with the new and full moon. The calmest day is Tuesday, October 20, with only 0.6 ft between the day's highest and lowest water.

    The lowest tide of the month is -0.1 ft at 12:37 PM on Wednesday, October 28. There are 2 minus tides (lows below the chart's zero line) in this window: the best times for tide pools, clamming and walking the flats.

    The highest predicted tide is 1.9 ft at 4:44 AM on Wednesday, October 28. Onshore wind or a storm can push the real water level above that.

    This is a subordinate station: NOAA calculates its times and heights by adjusting a nearby reference station, so expect them to be a few minutes or a few tenths of a foot off on any given day.

    Station details

    Reference station: Key West.

    Nearby tide stations

    Put these tides on your website

    Free for marinas, bait shops, clubs, rentals and anyone else. Paste this where you want the tide card to appear:

    How it works