
Charleston, SC tide forecast — heights relative to MLLW.
Tide times at Charleston, SC on Sunday, 26 July 2026: first low tide at 12:28am, first high tide at 06:09am, second low tide at 12:12pm, second high tide at 06:54pm. Sunrise 06:29am, sunset 08:23pm.
24-hour cosine-interpolated curve around the present moment. Heights relative to MLLW. Predictions: NOAA CO-OPS station 8665530.
Snapshot at build time — refreshes daily. Sea state from NOAA harmonic predictions.
Every predicted high and low for the next week, with the daily tidal coefficient (0–120; higher = bigger swing, > 95 means stronger currents).
The three closest curated TideTurtle locations to Charleston, SC, measured by great-circle distance.
Solunar tradition: major periods are the ≈3h windows around moon transit and opposition; minor are ≈2h around moonrise and moonset. Pair with the local tide stage and wind for the best read.
Next spring tide on Wed 29 Jul (range 1.7m / 5.4ft). Next neap on Mon 27 Jul.
Spring tides cluster around new and full moons (biggest swings). Neap tides land on quarter moons (smallest swings). See the spring tide and neap tide glossary entries for the why.
A short guide to the coastline at Charleston, SC — geography, sea state, and what the tide is actually doing under your feet.
Charleston Harbor opens to the Atlantic between Sullivan's Island and Morris Island, with the Cooper and Ashley rivers feeding the inner harbour. 7 metres — a textbook semidiurnal pattern, two highs and two lows of similar size each day. 4 metres.
The Battery, Shem Creek, and the marshes behind Folly Beach all swing through the full range, and the marsh creeks behind the barrier islands run hard on each ebb. For paddlers, anglers fishing the inlets, or families combing Folly's intertidal zone for shells, the timing and size of the low matters. Hurricane season — June through November — can stack water surge of 1–2 metres on top of predicted tides; that's when local emergency-management forecasts override harmonic predictions completely.
Predictions on this page come from NOAA CO-OPS station 8665530 in Charleston Harbor.
Quick answers to the most common questions about tide times, range, and water access at Charleston, SC.
The hero block shows the next high tide at Charleston Harbor in local Eastern time. The 7-day table covers all daily extremes. For tropical-storm and hurricane surge potential, the National Hurricane Center and the Charleston NWS office are the authoritative real-time sources.
Mean range is about 1.7 metres at Charleston Harbor — semidiurnal, with two highs and two lows of comparable size. Spring tides push to roughly 2.0 metres, neaps compress to about 1.4 metres. Wind setup from the southeast can lift water levels by 20–30 cm even in fair weather; tropical-storm surge can lift them several metres.
The lowest tides cluster around new and full moons. Folly's intertidal zone widens noticeably on the lowest predicted tides — under 0.3 m above MLLW makes the wash zone walkable for an hour or so either side. The 7-day table flags each day's predicted low. Pair with sunrise from the sun/moon block above for first-light combing.
NOAA CO-OPS station 8665530, Charleston Harbor. The station has a long historical record, and NOAA's harmonic predictions for it are very high accuracy under normal conditions — typically within a few minutes and a few centimetres of measured water level.
No. Use NOAA's authoritative tide and chart products plus US Coast Guard notices for piloting in Charleston Harbor and the Intracoastal Waterway. Hurricane and tropical-storm surge can completely override predicted levels — emergency-management forecasts take precedence in those events.
Heights relative to MLLW. Predictions: NOAA CO-OPS station 8665530 — heights relative to MLLW.
| Day | Type | Time | Height |
|---|---|---|---|
| Sun 26 Jul | Low | 00:28 | 0.3m / 0.8ft |
| High | 06:09 | 1.3m / 4.4ft | |
| Low | 12:12 | 0.2m / 0.5ft | |
| High | 18:54 | 1.7m / 5.6ft | |
| Mon 27 Jul | Low | 01:13 | 0.2m / 0.7ft |
| High | 06:57 | 1.4m / 4.5ft | |
| Low | 12:58 | 0.1m / 0.4ft | |
| High | 19:37 | 1.7m / 5.7ft | |
| Tue 28 Jul | Low | 01:56 | 0.2m / 0.6ft |
| High | 07:41 | 1.4m / 4.6ft | |
| Low | 13:41 | 0.1m / 0.4ft | |
| High | 20:17 | 1.8m / 5.7ft | |
| Wed 29 Jul | Low | 02:35 | 0.2m / 0.5ft |
| High | 08:23 | 1.4m / 4.7ft | |
| Low | 14:23 | 0.1m / 0.3ft | |
| High | 20:55 | 1.8m / 5.8ft | |
| Thu 30 Jul | Low | 03:12 | 0.1m / 0.4ft |
| High | 09:03 | 1.4m / 4.7ft | |
| Low | 15:04 | 0.1m / 0.3ft | |
| High | 21:31 | 1.7m / 5.7ft | |
| Fri 31 Jul | Low | 03:48 | 0.1m / 0.3ft |
| High | 09:41 | 1.5m / 4.8ft | |
| Low | 15:45 | 0.1m / 0.3ft | |
| High | 22:04 | 1.7m / 5.6ft | |
| Sat 01 Aug | Low | 04:23 | 0.1m / 0.3ft |
| High | 10:18 | 1.5m / 5.0ft | |
| Low | 16:27 | 0.1m / 0.4ft | |
| High | 22:37 | 1.7m / 5.5ft | |
| Sun 02 Aug | Low | 04:59 | 0.1m / 0.2ft |
| High | 10:57 | 1.6m / 5.1ft | |
| Low | 17:12 | 0.2m / 0.5ft | |
| High | 23:13 | 1.6m / 5.4ft | |
| Mon 03 Aug | Low | 05:38 | 0.0m / 0.1ft |
| High | 11:40 | 1.6m / 5.3ft | |
| Low | 18:01 | 0.2m / 0.7ft | |
| High | 23:54 | 1.6m / 5.2ft | |
| Tue 04 Aug | Low | 06:21 | 0.0m / 0.1ft |
| High | 12:29 | 1.7m / 5.5ft | |
| Low | 18:56 | 0.2m / 0.8ft | |
| Wed 05 Aug | High | 00:43 | 1.5m / 5.0ft |
| Low | 07:11 | 0.0m / 0.1ft | |
| High | 13:25 | 1.7m / 5.6ft | |
| Low | 20:00 | 0.3m / 0.9ft | |
| Thu 06 Aug | High | 01:40 | 1.5m / 4.8ft |
| Low | 08:07 | 0.0m / 0.1ft | |
| High | 14:27 | 1.8m / 5.8ft | |
| Low | 21:07 | 0.3m / 0.9ft | |
| Fri 07 Aug | High | 02:44 | 1.4m / 4.7ft |
| Low | 09:08 | 0.0m / 0.0ft | |
| High | 15:34 | 1.8m / 5.9ft | |
| Low | 22:15 | 0.3m / 0.8ft | |
| Sat 08 Aug | High | 03:54 | 1.4m / 4.7ft |
| Low | 10:12 | -0.0m / -0.0ft | |
| High | 16:44 | 1.8m / 6.1ft | |
| Low | 23:21 | 0.2m / 0.7ft | |
| Sun 09 Aug | High | 05:07 | 1.5m / 4.8ft |
| Low | 11:18 | -0.1m / -0.2ft | |
| High | 17:52 | 1.9m / 6.3ft | |
| Mon 10 Aug | Low | 00:23 | 0.1m / 0.4ft |
| High | 06:15 | 1.5m / 5.0ft | |
| Low | 12:21 | -0.1m / -0.3ft | |
| High | 18:54 | 2.0m / 6.5ft | |
| Tue 11 Aug | Low | 01:20 | 0.0m / 0.2ft |
| High | 07:17 | 1.6m / 5.2ft | |
| Low | 13:20 | -0.1m / -0.5ft | |
| High | 19:49 | 2.0m / 6.6ft | |
| Wed 12 Aug | Low | 02:13 | -0.0m / -0.1ft |
| High | 08:14 | 1.7m / 5.5ft | |
| Low | 14:17 | -0.2m / -0.5ft | |
| High | 20:41 | 2.0m / 6.6ft | |
| Thu 13 Aug | Low | 03:02 | -0.1m / -0.2ft |
| High | 09:08 | 1.7m / 5.7ft | |
| Low | 15:11 | -0.1m / -0.5ft | |
| High | 21:30 | 2.0m / 6.4ft | |
| Fri 14 Aug | Low | 03:49 | -0.1m / -0.2ft |
| High | 10:01 | 1.8m / 5.8ft | |
| Low | 16:02 | -0.1m / -0.3ft | |
| High | 22:16 | 1.9m / 6.2ft | |
| Sat 15 Aug | Low | 04:33 | -0.1m / -0.2ft |
| High | 10:51 | 1.8m / 5.8ft | |
| Low | 16:52 | 0.0m / 0.0ft | |
| High | 23:01 | 1.8m / 5.9ft | |
| Sun 16 Aug | Low | 05:15 | -0.0m / -0.0ft |
| High | 11:40 | 1.8m / 5.8ft | |
| Low | 17:41 | 0.1m / 0.4ft | |
| High | 23:44 | 1.7m / 5.5ft | |
| Mon 17 Aug | Low | 05:56 | 0.1m / 0.2ft |
| High | 12:28 | 1.7m / 5.7ft | |
| Low | 18:32 | 0.2m / 0.7ft | |
| Tue 18 Aug | High | 00:28 | 1.6m / 5.2ft |
| Low | 06:39 | 0.2m / 0.5ft | |
| High | 13:16 | 1.7m / 5.6ft | |
| Low | 19:26 | 0.3m / 1.0ft | |
| Wed 19 Aug | High | 01:14 | 1.5m / 4.9ft |
| Low | 07:24 | 0.2m / 0.8ft | |
| High | 14:05 | 1.7m / 5.5ft | |
| Low | 20:21 | 0.4m / 1.3ft | |
| Thu 20 Aug | High | 02:03 | 1.4m / 4.7ft |
| Low | 08:12 | 0.3m / 0.9ft | |
| High | 14:56 | 1.6m / 5.4ft | |
| Low | 21:16 | 0.4m / 1.4ft | |
| Fri 21 Aug | High | 02:54 | 1.4m / 4.5ft |
| Low | 09:03 | 0.3m / 1.0ft | |
| High | 15:48 | 1.6m / 5.4ft | |
| Low | 22:11 | 0.4m / 1.4ft | |
| Sat 22 Aug | High | 03:48 | 1.4m / 4.5ft |
| Low | 09:56 | 0.3m / 1.1ft | |
| High | 16:42 | 1.7m / 5.4ft | |
| Low | 23:03 | 0.4m / 1.4ft | |
| Sun 23 Aug | High | 04:43 | 1.4m / 4.5ft |
| Low | 10:49 | 0.3m / 1.0ft | |
| High | 17:35 | 1.7m / 5.5ft | |
| Low | 23:53 | 0.4m / 1.2ft | |
| Mon 24 Aug | High | 05:38 | 1.4m / 4.7ft |
| Low | 11:41 | 0.3m / 0.9ft | |
| High | 18:23 | 1.7m / 5.7ft |