Fort Johnson tide chart
South Carolina · near Charleston (3 mi) · NOAA station 8665726 · times in local time (EDT)
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Tides today, Sunday, October 11
- Low 2:43 AM 0.3 ft
- High 9:01 AM 6.4 ft
- Low 3:18 PM 0.5 ft
- High 9:07 PM 5.6 ft
Were today's predicted times right where you were?
Sunrise 7:21 AM · Sunset 6:53 PM · New moon (0%)
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Weather and conditions at Fort Johnson
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Marine forecast: Charleston Harbor
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- Water temperature —
- Nearest weather buoy Capers Nearshore, SC (CAP2) (16 mi): waves, wind and water temperature
Marine radio: weather channels and VHF
NOAA Weather Radio
- 162.550 MHz WX1 KHB29, Charleston, SC (17 mi)
- 162.475 MHz WX3 WXM93, Cross, SC (44 mi)
To get alerts on a weather alert radio, program county code 045019 (Charleston).
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 | L 2:43 AM 0.3 ftH 9:01 AM 6.4 ftL 3:18 PM 0.5 ftH 9:07 PM 5.6 ft | 7:21 AM / 6:53 PM | New moon (0%) |
| Mon Oct 12 | L 3:21 AM 0.5 ftH 9:41 AM 6.3 ftL 4:02 PM 0.7 ftH 9:46 PM 5.4 ft | 7:22 AM / 6:51 PM | New moon (2%) |
| Tue Oct 13 | L 3:58 AM 0.7 ftH 10:21 AM 6.1 ftL 4:44 PM 0.9 ftH 10:26 PM 5.2 ft | 7:23 AM / 6:50 PM | Waxing crescent (6%) |
| Wed Oct 14 | L 4:34 AM 0.9 ftH 11:01 AM 5.9 ftL 5:25 PM 1.2 ftH 11:07 PM 5.0 ft | 7:23 AM / 6:49 PM | Waxing crescent (12%) |
| Thu Oct 15 | L 5:11 AM 1.1 ftH 11:43 AM 5.7 ftL 6:08 PM 1.4 ftH 11:51 PM 4.8 ft | 7:24 AM / 6:48 PM | Waxing crescent (19%) |
| Fri Oct 16 | L 5:50 AM 1.3 ftH 12:29 PM 5.5 ftL 6:55 PM 1.7 ft | 7:25 AM / 6:47 PM | Waxing crescent (28%) |
| Sat Oct 17 | H 12:39 AM 4.7 ftL 6:36 AM 1.5 ftH 1:20 PM 5.3 ftL 7:46 PM 1.8 ft | 7:26 AM / 6:45 PM | First quarter (38%) |
Tidal currents near Fort Johnson
From NOAA's current predictions for South Chan., 0.4 mi. NW of Ft. Johnson, 0.6 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 WNW (282°) and the ebb toward the ESE (104°). The strongest current this week is 2.8 knots.
| Day | Slack water and peak currents |
|---|---|
| Sun Oct 11 | Ebb 1:01 AM 2.5 knSlack 4:29 AMFlood 6:47 AM 0.7 knSlack 9:55 AMEbb 1:31 PM 2.8 knSlack 5:01 PMFlood 6:58 PM 0.7 knSlack 9:55 PM |
| Mon Oct 12 | Ebb 1:40 AM 2.3 knSlack 5:07 AMFlood 7:24 AM 0.7 knSlack 10:35 AMEbb 2:13 PM 2.7 knSlack 5:43 PMFlood 7:39 PM 0.6 knSlack 10:28 PM |
| Tue Oct 13 | Ebb 2:17 AM 2.1 knSlack 5:44 AMFlood 8:03 AM 0.7 knSlack 11:13 AMEbb 2:55 PM 2.5 knSlack 6:26 PMFlood 8:21 PM 0.6 knSlack 11:01 PM |
| Wed Oct 14 | Ebb 2:51 AM 1.9 knSlack 6:21 AMFlood 8:45 AM 0.6 knSlack 11:52 AMEbb 3:37 PM 2.2 knSlack 7:10 PMFlood 9:06 PM 0.5 knSlack 11:35 PM |
| Thu Oct 15 | Ebb 3:25 AM 1.7 knSlack 7:00 AMFlood 9:29 AM 0.6 knSlack 12:33 PMEbb 4:22 PM 2.0 knSlack 7:57 PMFlood 9:53 PM 0.5 kn |
| Fri Oct 16 | Slack 12:12 AMEbb 4:01 AM 1.5 knSlack 7:43 AMFlood 10:17 AM 0.5 knSlack 1:18 PMEbb 5:10 PM 1.8 knSlack 8:50 PMFlood 10:43 PM 0.4 kn |
| Sat Oct 17 | Slack 12:57 AMEbb 4:43 AM 1.3 knSlack 8:34 AMFlood 11:09 AM 0.5 knSlack 2:08 PMEbb 6:02 PM 1.6 knSlack 9:46 PMFlood 11:36 PM 0.4 kn |
Current predictions can differ a lot over short distances: check the station location on NOAA before planning a passage.
Best fishing times at Fort Johnson
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 | Very good | 12:32 AM–2:32 AM, 12:55 PM–2:55 PM | 7:56 AM–8:56 AM, 6:47 PM–7:47 PM |
| Mon Oct 12 | Very good | 1:18 AM–3:18 AM, 1:41 PM–3:41 PM | 8:57 AM–9:57 AM, 7:20 PM–8:20 PM |
| Tue Oct 13 | Very good | 2:05 AM–4:05 AM, 2:29 PM–4:29 PM | 9:57 AM–10:57 AM, 7:58 PM–8:58 PM |
| Wed Oct 14 | Good | 2:54 AM–4:54 AM, 3:19 PM–5:19 PM | 10:55 AM–11:55 AM, 8:41 PM–9:41 PM |
| Thu Oct 15 | Very good | 3:44 AM–5:44 AM, 4:10 PM–6:10 PM | 11:50 AM–12:50 PM, 9:29 PM–10:29 PM |
| Fri Oct 16 | Good | 4:35 AM–6:35 AM, 5:01 PM–7:01 PM | 12:40 PM–1:40 PM, 10:23 PM–11:23 PM |
| Sat Oct 17 | Good | 5:26 AM–7:26 AM, 5:50 PM–7:50 PM | 1:24 PM–2:24 PM, 11:20 PM–12:20 AM |
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.
- 0.5 ft at 3:18 PM on Sunday, October 11
- 0.6 ft at 1:09 PM on Saturday, October 24
- 0.7 ft at 4:02 PM on Monday, October 12
- 0.9 ft at 12:17 PM on Friday, October 23
- 0.9 ft at 4:44 PM on Tuesday, October 13
- 1.1 ft at 11:24 AM on Thursday, October 22
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 | L 2:43 AM 0.3 ftH 9:01 AM 6.4 ftL 3:18 PM 0.5 ftH 9:07 PM 5.6 ft | 7:21 AM / 6:53 PM |
| Mon Oct 12 | L 3:21 AM 0.5 ftH 9:41 AM 6.3 ftL 4:02 PM 0.7 ftH 9:46 PM 5.4 ft | 7:22 AM / 6:51 PM |
| Tue Oct 13 | L 3:58 AM 0.7 ftH 10:21 AM 6.1 ftL 4:44 PM 0.9 ftH 10:26 PM 5.2 ft | 7:23 AM / 6:50 PM |
| Wed Oct 14 | L 4:34 AM 0.9 ftH 11:01 AM 5.9 ftL 5:25 PM 1.2 ftH 11:07 PM 5.0 ft | 7:23 AM / 6:49 PM |
| Thu Oct 15 | L 5:11 AM 1.1 ftH 11:43 AM 5.7 ftL 6:08 PM 1.4 ftH 11:51 PM 4.8 ft | 7:24 AM / 6:48 PM |
| Fri Oct 16 | L 5:50 AM 1.3 ftH 12:29 PM 5.5 ftL 6:55 PM 1.7 ft | 7:25 AM / 6:47 PM |
| Sat Oct 17 | H 12:39 AM 4.7 ftL 6:36 AM 1.5 ftH 1:20 PM 5.3 ftL 7:46 PM 1.8 ft | 7:26 AM / 6:45 PM |
| Sun Oct 18 | H 1:32 AM 4.6 ftL 7:30 AM 1.6 ftH 2:14 PM 5.3 ftL 8:39 PM 1.8 ft | 7:26 AM / 6:44 PM |
| Mon Oct 19 | H 2:27 AM 4.6 ftL 8:29 AM 1.6 ftH 3:07 PM 5.3 ftL 9:31 PM 1.7 ft | 7:27 AM / 6:43 PM |
| Tue Oct 20 | H 3:22 AM 4.7 ftL 9:29 AM 1.5 ftH 4:00 PM 5.3 ftL 10:20 PM 1.5 ft | 7:28 AM / 6:42 PM |
| Wed Oct 21 | H 4:17 AM 5.0 ftL 10:28 AM 1.4 ftH 4:51 PM 5.4 ftL 11:07 PM 1.2 ft | 7:29 AM / 6:41 PM |
| Thu Oct 22 | H 5:10 AM 5.3 ftL 11:24 AM 1.1 ftH 5:40 PM 5.5 ftL 11:52 PM 0.9 ft | 7:29 AM / 6:40 PM |
| Fri Oct 23 | H 5:59 AM 5.6 ftL 12:17 PM 0.9 ftH 6:25 PM 5.6 ft | 7:30 AM / 6:39 PM |
| Sat Oct 24 | L 12:36 AM 0.5 ftH 6:45 AM 6.0 ftL 1:09 PM 0.6 ftH 7:08 PM 5.7 ft | 7:31 AM / 6:38 PM |
| Sun Oct 25 | L 1:20 AM 0.2 ftH 7:29 AM 6.3 ftL 1:59 PM 0.5 ftH 7:51 PM 5.7 ft | 7:32 AM / 6:37 PM |
| Mon Oct 26 | L 2:05 AM 0.0 ftH 8:13 AM 6.6 ftL 2:49 PM 0.3 ftH 8:36 PM 5.6 ft | 7:33 AM / 6:36 PM |
| Tue Oct 27 | L 2:51 AM -0.1 ftH 9:01 AM 6.7 ftL 3:39 PM 0.3 ftH 9:25 PM 5.5 ft | 7:34 AM / 6:34 PM |
| Wed Oct 28 | L 3:39 AM -0.1 ftH 9:52 AM 6.7 ftL 4:31 PM 0.4 ftH 10:18 PM 5.3 ft | 7:34 AM / 6:34 PM |
| Thu Oct 29 | L 4:29 AM 0.0 ftH 10:47 AM 6.5 ftL 5:24 PM 0.6 ftH 11:16 PM 5.2 ft | 7:35 AM / 6:33 PM |
| Fri Oct 30 | L 5:23 AM 0.2 ftH 11:48 AM 6.3 ftL 6:22 PM 0.8 ft | 7:36 AM / 6:32 PM |
| Sat Oct 31 | H 12:20 AM 5.0 ftL 6:22 AM 0.4 ftH 12:53 PM 6.1 ftL 7:24 PM 0.9 ft | 7:37 AM / 6:31 PM |
| Sun Nov 1 | H 1:28 AM 5.0 ftL 6:28 AM 0.6 ftH 12:59 PM 6.0 ftL 7:28 PM 0.9 ft | 6:38 AM / 5:30 PM |
| Mon Nov 2 | H 1:36 AM 5.1 ftL 7:37 AM 0.7 ftH 2:03 PM 5.8 ftL 8:29 PM 0.8 ft | 6:39 AM / 5:29 PM |
| Tue Nov 3 | H 2:40 AM 5.3 ftL 8:43 AM 0.7 ftH 3:03 PM 5.7 ftL 9:25 PM 0.7 ft | 6:40 AM / 5:28 PM |
| Wed Nov 4 | H 3:41 AM 5.5 ftL 9:46 AM 0.6 ftH 3:59 PM 5.6 ftL 10:17 PM 0.5 ft | 6:40 AM / 5:27 PM |
| Thu Nov 5 | H 4:38 AM 5.8 ftL 10:44 AM 0.5 ftH 4:50 PM 5.6 ftL 11:05 PM 0.4 ft | 6:41 AM / 5:26 PM |
| Fri Nov 6 | H 5:28 AM 6.0 ftL 11:38 AM 0.4 ftH 5:36 PM 5.5 ftL 11:50 PM 0.3 ft | 6:42 AM / 5:26 PM |
| Sat Nov 7 | H 6:13 AM 6.2 ftL 12:27 PM 0.4 ftH 6:18 PM 5.4 ft | 6:43 AM / 5:25 PM |
| Sun Nov 8 | L 12:32 AM 0.3 ftH 6:54 AM 6.2 ftL 1:13 PM 0.4 ftH 6:59 PM 5.3 ft | 6:44 AM / 5:24 PM |
| Mon Nov 9 | L 1:11 AM 0.3 ftH 7:34 AM 6.2 ftL 1:56 PM 0.5 ftH 7:38 PM 5.2 ft | 6:45 AM / 5:23 PM |
| Tue Nov 10 | L 1:50 AM 0.4 ftH 8:13 AM 6.1 ftL 2:38 PM 0.6 ftH 8:18 PM 5.0 ft | 6:46 AM / 5:23 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 Fort Johnson
Beaches
- Grice Beach 0.2 mi
- Sunrise Park Beach 1.1 mi
- Cummings Point 1.8 mi
Marinas
- Carolina Yacht Club 2.2 mi
- Charleston Branch Pilots Association 2.3 mi
- Charleston Harbor Marina 2.5 mi
- Charleston Maritime Center 3.0 mi
Fishing piers and docks
- Public Pier 2.3 mi
- Waterfront Park Pier 2.4 mi
- Fishing spot 2.7 mi
- Gadsden's Wharf 3.0 mi
Distances from the tide station. Places from © OpenStreetMap contributors; links open in Google Maps.
About the tides at Fort Johnson
Fort Johnson 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 4.8 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 6.7 ft, and again around Sunday, October 11 (6.0 ft). Those spring tides follow the new and full moon by a day or two. The calmest day is Monday, October 19, with only 3.6 ft between the day's highest and lowest water.
The lowest tide of the month is -0.1 ft at 3:39 AM on Wednesday, October 28. There are 3 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 6.7 ft at 9:01 AM 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: 8665726
- Type: subordinate (adjusted from a reference station)
- Location: 32.7517, -79.8983
Reference station: Charleston (Customhouse Wharf).