Main Key, Barnes Sound tide chart
Florida · near North Key Largo (5 mi) · NOAA station 8723571 · times in local time (EDT)
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Tides today, Sunday, October 11
- High 2:17 AM 0.6 ft
- Low 9:19 AM 0.1 ft
- High 2:49 PM 0.6 ft
- Low 9:45 PM 0.2 ft
Were today's predicted times right where you were?
Sunrise 7:18 AM · Sunset 6:59 PM · New moon (0%)
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Weather and conditions at Main Key, Barnes Sound
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Marine forecast: Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound
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Marine radio: weather channels and VHF
NOAA Weather Radio
- 162.425 MHz WX4 WNG663, Princeton, FL (21 mi)
- 162.450 MHz WX5 WWG60, Tea Table Key, FL (29 mi)
To get alerts on a weather alert radio, program county code 012086 (Miami-Dade).
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.
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Tide times this week
| Day | High and low tides | Sunrise / sunset | Moon |
|---|---|---|---|
| Sun Oct 11 | H 2:17 AM 0.6 ftL 9:19 AM 0.1 ftH 2:49 PM 0.6 ftL 9:45 PM 0.2 ft | 7:18 AM / 6:59 PM | New moon (0%) |
| Mon Oct 12 | H 2:55 AM 0.6 ftL 9:59 AM 0.1 ftH 3:28 PM 0.6 ftL 10:25 PM 0.2 ft | 7:19 AM / 6:58 PM | New moon (2%) |
| Tue Oct 13 | H 3:32 AM 0.6 ftL 10:38 AM 0.1 ftH 4:07 PM 0.6 ftL 11:04 PM 0.3 ft | 7:19 AM / 6:57 PM | Waxing crescent (6%) |
| Wed Oct 14 | H 4:10 AM 0.5 ftL 11:17 AM 0.2 ftH 4:47 PM 0.6 ftL 11:44 PM 0.3 ft | 7:20 AM / 6:56 PM | Waxing crescent (12%) |
| Thu Oct 15 | H 4:48 AM 0.5 ftL 11:58 AM 0.2 ftH 5:28 PM 0.5 ft | 7:20 AM / 6:55 PM | Waxing crescent (19%) |
| Fri Oct 16 | L 12:26 AM 0.4 ftH 5:29 AM 0.5 ftL 12:43 PM 0.3 ftH 6:13 PM 0.5 ft | 7:21 AM / 6:54 PM | Waxing crescent (28%) |
| Sat Oct 17 | L 1:14 AM 0.4 ftH 6:15 AM 0.5 ftL 1:34 PM 0.3 ftH 7:04 PM 0.5 ft | 7:21 AM / 6:54 PM | First quarter (38%) |
Best fishing times at Main Key, Barnes Sound
Solunar periods for this spot: major periods (about two hours) are centred on the moon passing overhead or underfoot, and minor periods (about an hour) on moonrise and moonset. Days near the new and full moon rate higher, and so does a period that lines up with sunrise, sunset or a turn of the tide.
| Day | Rating | Major periods | Minor periods |
|---|---|---|---|
| Sun Oct 11 | Excellent | 12:34 AM–2:34 AM, 12:57 PM–2:57 PM | 7:47 AM–8:47 AM, 7:02 PM–8:02 PM |
| Mon Oct 12 | Excellent | 1:20 AM–3:20 AM, 1:43 PM–3:43 PM | 8:43 AM–9:43 AM, 7:39 PM–8:39 PM |
| Tue Oct 13 | Very good | 2:07 AM–4:07 AM, 2:31 PM–4:31 PM | 9:40 AM–10:40 AM, 8:20 PM–9:20 PM |
| Wed Oct 14 | Good | 2:56 AM–4:56 AM, 3:21 PM–5:21 PM | 10:36 AM–11:36 AM, 9:05 PM–10:05 PM |
| Thu Oct 15 | Very good | 3:47 AM–5:47 AM, 4:12 PM–6:12 PM | 11:30 AM–12:30 PM, 9:54 PM–10:54 PM |
| Fri Oct 16 | Good | 4:37 AM–6:37 AM, 5:03 PM–7:03 PM | 12:20 PM–1:20 PM, 10:47 PM–11:47 PM |
| Sat Oct 17 | Good | 5:28 AM–7:28 AM, 5:52 PM–7:52 PM | 1:06 PM–2:06 PM |
Solunar times are a rule of thumb many anglers use, not a guarantee. Moving water around a tide change usually matters as much.
Best daylight low tides in the next two weeks
The lowest water that falls between sunrise and sunset, for tide pooling and beachcombing.
- 0.1 ft at 9:19 AM on Sunday, October 11
- 0.1 ft at 9:59 AM on Monday, October 12
- 0.1 ft at 10:38 AM on Tuesday, October 13
- 0.2 ft at 11:17 AM on Wednesday, October 14
- 0.2 ft at 11:58 AM on Thursday, October 15
- 0.3 ft at 12:43 PM on Friday, October 16
Tide table: October 11 to November 10, 2026
Full 2026 tide table Full 2027 tide table
| Day | High and low tides | Sunrise / sunset |
|---|---|---|
| Sun Oct 11 | H 2:17 AM 0.6 ftL 9:19 AM 0.1 ftH 2:49 PM 0.6 ftL 9:45 PM 0.2 ft | 7:18 AM / 6:59 PM |
| Mon Oct 12 | H 2:55 AM 0.6 ftL 9:59 AM 0.1 ftH 3:28 PM 0.6 ftL 10:25 PM 0.2 ft | 7:19 AM / 6:58 PM |
| Tue Oct 13 | H 3:32 AM 0.6 ftL 10:38 AM 0.1 ftH 4:07 PM 0.6 ftL 11:04 PM 0.3 ft | 7:19 AM / 6:57 PM |
| Wed Oct 14 | H 4:10 AM 0.5 ftL 11:17 AM 0.2 ftH 4:47 PM 0.6 ftL 11:44 PM 0.3 ft | 7:20 AM / 6:56 PM |
| Thu Oct 15 | H 4:48 AM 0.5 ftL 11:58 AM 0.2 ftH 5:28 PM 0.5 ft | 7:20 AM / 6:55 PM |
| Fri Oct 16 | L 12:26 AM 0.4 ftH 5:29 AM 0.5 ftL 12:43 PM 0.3 ftH 6:13 PM 0.5 ft | 7:21 AM / 6:54 PM |
| Sat Oct 17 | L 1:14 AM 0.4 ftH 6:15 AM 0.5 ftL 1:34 PM 0.3 ftH 7:04 PM 0.5 ft | 7:21 AM / 6:54 PM |
| Sun Oct 18 | L 2:12 AM 0.4 ftH 7:10 AM 0.5 ftL 2:33 PM 0.3 ftH 8:00 PM 0.5 ft | 7:22 AM / 6:53 PM |
| Mon Oct 19 | L 3:16 AM 0.4 ftH 8:12 AM 0.5 ftL 3:37 PM 0.4 ftH 8:58 PM 0.5 ft | 7:22 AM / 6:52 PM |
| Tue Oct 20 | L 4:18 AM 0.4 ftH 9:17 AM 0.5 ftL 4:37 PM 0.3 ftH 9:54 PM 0.5 ft | 7:23 AM / 6:51 PM |
| Wed Oct 21 | L 5:11 AM 0.4 ftH 10:18 AM 0.5 ftL 5:31 PM 0.3 ftH 10:45 PM 0.5 ft | 7:23 AM / 6:50 PM |
| Thu Oct 22 | L 5:57 AM 0.3 ftH 11:13 AM 0.5 ftL 6:19 PM 0.3 ftH 11:33 PM 0.5 ft | 7:24 AM / 6:49 PM |
| Fri Oct 23 | L 6:40 AM 0.2 ftH 12:04 PM 0.6 ftL 7:04 PM 0.2 ft | 7:25 AM / 6:48 PM |
| Sat Oct 24 | H 12:17 AM 0.5 ftL 7:21 AM 0.1 ftH 12:51 PM 0.6 ftL 7:48 PM 0.2 ft | 7:25 AM / 6:48 PM |
| Sun Oct 25 | H 1:00 AM 0.6 ftL 8:02 AM 0.1 ftH 1:37 PM 0.6 ftL 8:31 PM 0.2 ft | 7:26 AM / 6:47 PM |
| Mon Oct 26 | H 1:44 AM 0.6 ftL 8:45 AM 0.0 ftH 2:23 PM 0.6 ftL 9:15 PM 0.2 ft | 7:26 AM / 6:46 PM |
| Tue Oct 27 | H 2:28 AM 0.6 ftL 9:30 AM 0.0 ftH 3:11 PM 0.6 ftL 10:01 PM 0.2 ft | 7:27 AM / 6:45 PM |
| Wed Oct 28 | H 3:15 AM 0.6 ftL 10:17 AM 0.0 ftH 4:00 PM 0.6 ftL 10:49 PM 0.2 ft | 7:27 AM / 6:44 PM |
| Thu Oct 29 | H 4:04 AM 0.6 ftL 11:08 AM 0.0 ftH 4:52 PM 0.6 ftL 11:42 PM 0.2 ft | 7:28 AM / 6:44 PM |
| Fri Oct 30 | H 4:58 AM 0.6 ftL 12:04 PM 0.1 ftH 5:48 PM 0.6 ft | 7:29 AM / 6:43 PM |
| Sat Oct 31 | L 12:40 AM 0.3 ftH 5:57 AM 0.5 ftL 1:06 PM 0.1 ftH 6:47 PM 0.6 ft | 7:29 AM / 6:42 PM |
| Sun Nov 1 | L 1:47 AM 0.3 ftH 6:03 AM 0.5 ftL 1:15 PM 0.2 ftH 6:50 PM 0.5 ft | 6:30 AM / 5:42 PM |
| Mon Nov 2 | L 1:57 AM 0.3 ftH 7:12 AM 0.5 ftL 2:26 PM 0.2 ftH 7:54 PM 0.5 ft | 6:30 AM / 5:41 PM |
| Tue Nov 3 | L 3:05 AM 0.2 ftH 8:23 AM 0.5 ftL 3:33 PM 0.2 ftH 8:55 PM 0.5 ft | 6:31 AM / 5:40 PM |
| Wed Nov 4 | L 4:06 AM 0.2 ftH 9:28 AM 0.5 ftL 4:34 PM 0.2 ftH 9:51 PM 0.5 ft | 6:32 AM / 5:40 PM |
| Thu Nov 5 | L 5:00 AM 0.1 ftH 10:27 AM 0.6 ftL 5:27 PM 0.2 ftH 10:41 PM 0.5 ft | 6:32 AM / 5:39 PM |
| Fri Nov 6 | L 5:48 AM 0.1 ftH 11:18 AM 0.6 ftL 6:16 PM 0.2 ftH 11:27 PM 0.6 ft | 6:33 AM / 5:39 PM |
| Sat Nov 7 | L 6:32 AM 0.1 ftH 12:04 PM 0.6 ftL 7:00 PM 0.2 ft | 6:34 AM / 5:38 PM |
| Sun Nov 8 | H 12:09 AM 0.5 ftL 7:13 AM 0.1 ftH 12:46 PM 0.6 ftL 7:41 PM 0.2 ft | 6:34 AM / 5:38 PM |
| Mon Nov 9 | H 12:49 AM 0.5 ftL 7:53 AM 0.1 ftH 1:25 PM 0.6 ftL 8:20 PM 0.2 ft | 6:35 AM / 5:37 PM |
| Tue Nov 10 | H 1:27 AM 0.5 ftL 8:32 AM 0.1 ftH 2:03 PM 0.6 ftL 8:59 PM 0.2 ft | 6:36 AM / 5:37 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 Main Key, Barnes Sound
Boat ramps
- Boat ramp 4.2 mi
Fishing piers and docks
- Gilbert's Resort 4.0 mi
Distances from the tide station. Places from © OpenStreetMap contributors; links open in Google Maps.
About the tides at Main Key, Barnes Sound
Main Key, Barnes Sound gets two high tides and two low tides almost every day, and the two highs are close in height. Over the next month the water typically rises or falls about 0.3 ft between a high and the next low.
The biggest swings in this window come around Tuesday, October 27, when the day's range reaches 0.6 ft, and again around Sunday, October 11 (0.5 ft). Those spring tides follow the new and full moon by a day or two. The calmest day is Monday, October 19, with only 0.1 ft between the day's highest and lowest water.
The lowest tide of the month is 0.0 ft at 9:30 AM on Tuesday, October 27. 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 0.6 ft at 3:11 PM on Tuesday, October 27. 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
- NOAA station ID: 8723571
- Type: subordinate (adjusted from a reference station)
- Location: 25.2400, -80.4000
Reference station: Government Cut, Miami Harbor Entrance.