South Carolina · United States

Charleston, SC tide times

Name: Charleston, SC tide data — high & low extrema, next 7 days
Creator: TideTurtle
License: https://www.noaa.gov/disclaimer

Tide is currently falling — next low in 2h 50m

1.57 m / 5.2ft

Next high · 08:00 GMT-4

Heights relative to MLLW · 2026-05-15Solunar 4/5

TIDE CURVE

Next 24 hours at Charleston, SC

Predictions: NOAA CO-OPS station 8665530 — heights relative to MLLW.

Harmonic prediction from the official tide authority. Very high accuracy under normal conditions; storm surge may shift actual water level. Not for navigation.

TODAY'S HIGHLIGHTS

Sun, moon and conditions on Fri 15 May

Sunrise

06:20

Sunset

20:11

Moon

New moon

3% illuminated

Marine-conditions data not available for this station. Wind, swell and water temperature ride along with Open-Meteo Marine; gauge-only stations (e.g. UK EA Flood) publish water level only.

7-DAY OUTLOOK

Highs and lows next 7 days

Today

Sat

1.6m / 5.2ft08:00

-0.1m / -0.3ft02:10

Coef. 100

Sun

1.6m / 5.1ft08:55

-0.1m / -0.4ft03:04

Coef. 101

Mon

1.5m / 5.1ft09:52

-0.1m / -0.4ft03:58

Coef. 98

Tue

1.5m / 5.0ft10:52

-0.1m / -0.4ft04:51

Coef. 93

Wed

1.5m / 4.9ft11:53

-0.1m / -0.2ft05:45

Coef. 69

Thu

1.9m / 6.1ft00:17

-0.0m / -0.0ft06:42

Coef. 82

All extrema (7 days)

Day	Type	Time	Height	Coef.
Sat 16 May	Low	02:10	-0.1m / -0.3ft	100
	High	08:00	1.6m / 5.2ft
	Low	14:07	-0.2m / -0.7ft
	High	20:27	2.1m / 6.7ft
Sun 17 May	Low	03:04	-0.1m / -0.4ft	101
	High	08:55	1.6m / 5.1ft
	Low	14:59	-0.2m / -0.8ft
	High	21:22	2.1m / 6.7ft
Mon 18 May	Low	03:58	-0.1m / -0.4ft	98
	High	09:52	1.5m / 5.1ft
	Low	15:53	-0.2m / -0.7ft
	High	22:19	2.0m / 6.6ft
Tue 19 May	Low	04:51	-0.1m / -0.4ft	93
	High	10:52	1.5m / 5.0ft
	Low	16:47	-0.2m / -0.5ft
	High	23:17	2.0m / 6.4ft
Wed 20 May	Low	05:45	-0.1m / -0.2ft	69
	High	11:53	1.5m / 4.9ft
	Low	17:44	-0.1m / -0.2ft
Thu 21 May	High	00:17	1.9m / 6.1ft	82
	Low	06:42	-0.0m / -0.0ft
	High	12:56	1.5m / 4.9ft
	Low	18:46	0.0m / 0.1ft

Predictions: NOAA CO-OPS station 8665530 — heights relative to MLLW. · Not for navigation.

SOLUNAR FORECAST

Today's solunar windows

The angler tradition for major/minor fishing windows: major ≈3-hour windows around moon transit and opposition; minor ≈2-hour windows around moonrise and moonset. Times are America/New York local. Folk tradition, not a scientific forecast.

Major

22:06-01:06

10:34-13:34

Minor

04:04-06:04

18:14-20:14

7-day window outlook

Fri
2 M / 2 m
Sat
2 M / 1 m
Sun
2 M / 2 m
Mon
2 M / 2 m
Tue
2 M / 2 m
Wed
2 M / 2 m
Thu
2 M / 2 m

SPRING AND NEAP CYCLE

Cycle dates near Charleston, SC

Next spring tide on Sat 16 May (range 2.3m / 7.5ft). Last neap on Fri 15 May. Next neap on Sat 23 May.

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.

EDITORIAL

About tides at Charleston, SC

Charleston Harbor opens to the Atlantic between Sullivan's Island and Morris Island, with the Cooper and Ashley rivers feeding the inner harbour. Mean tide range is about 1.7 metres — a textbook semidiurnal pattern, two highs and two lows of similar size each day. Spring tides push toward 2.0 metres, neaps drop near 1.4 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.

COMMON QUESTIONS

Tide questions about Charleston, SC

When is the next high tide at Charleston?

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.

What's the typical tide range at Charleston?

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.

When are the best low tides for shell-hunting on Folly Beach?

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.

Where do these tide predictions come from?

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.

Is this safe to use for navigation?

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.

30-day tide table — Charleston, SC

Heights relative to MLLW. Predictions: NOAA CO-OPS station 8665530 — heights relative to MLLW.

Day	Type	Time	Height
Fri 15 May	—
Sat 16 May	Low	02:10	-0.1m / -0.3ft
	High	08:00	1.6m / 5.2ft
	Low	14:07	-0.2m / -0.7ft
	High	20:27	2.1m / 6.7ft
Sun 17 May	Low	03:04	-0.1m / -0.4ft
	High	08:55	1.6m / 5.1ft
	Low	14:59	-0.2m / -0.8ft
	High	21:22	2.1m / 6.7ft
Mon 18 May	Low	03:58	-0.1m / -0.4ft
	High	09:52	1.5m / 5.1ft
	Low	15:53	-0.2m / -0.7ft
	High	22:19	2.0m / 6.6ft
Tue 19 May	Low	04:51	-0.1m / -0.4ft
	High	10:52	1.5m / 5.0ft
	Low	16:47	-0.2m / -0.5ft
	High	23:17	2.0m / 6.4ft
Wed 20 May	Low	05:45	-0.1m / -0.2ft
	High	11:53	1.5m / 4.9ft
	Low	17:44	-0.1m / -0.2ft
Thu 21 May	High	00:17	1.9m / 6.1ft
	Low	06:42	-0.0m / -0.0ft
	High	12:56	1.5m / 4.9ft
	Low	18:46	0.0m / 0.1ft
Fri 22 May	High	01:17	1.8m / 5.8ft
	Low	07:41	0.0m / 0.1ft
	High	13:59	1.5m / 5.0ft
	Low	19:51	0.1m / 0.3ft
Sat 23 May	High	02:15	1.7m / 5.5ft
	Low	08:38	0.0m / 0.2ft
	High	14:59	1.6m / 5.1ft
	Low	20:56	0.1m / 0.4ft
Sun 24 May	High	03:10	1.6m / 5.3ft
	Low	09:32	0.0m / 0.2ft
	High	15:57	1.6m / 5.2ft
	Low	21:58	0.2m / 0.5ft
Mon 25 May	High	04:03	1.5m / 5.1ft
	Low	10:23	0.0m / 0.1ft
	High	16:51	1.7m / 5.4ft
	Low	22:57	0.2m / 0.5ft
Tue 26 May	High	04:54	1.5m / 4.9ft
	Low	11:10	0.0m / 0.1ft
	High	17:42	1.7m / 5.6ft
	Low	23:51	0.1m / 0.4ft
Wed 27 May	High	05:43	1.5m / 4.8ft
	Low	11:55	0.0m / 0.1ft
	High	18:27	1.8m / 5.8ft
Thu 28 May	Low	00:41	0.1m / 0.4ft
	High	06:28	1.4m / 4.7ft
	Low	12:37	0.0m / 0.1ft
	High	19:09	1.8m / 5.9ft
Fri 29 May	Low	01:27	0.1m / 0.3ft
	High	07:11	1.4m / 4.6ft
	Low	13:17	0.0m / 0.2ft
	High	19:48	1.8m / 5.9ft
Sat 30 May	Low	02:10	0.1m / 0.3ft
	High	07:52	1.4m / 4.6ft
	Low	13:56	0.1m / 0.2ft
	High	20:27	1.8m / 5.9ft
Sun 31 May	Low	02:52	0.1m / 0.3ft
	High	08:33	1.4m / 4.5ft
	Low	14:33	0.1m / 0.3ft
	High	21:05	1.8m / 5.8ft
Mon 01 Jun	Low	03:31	0.1m / 0.3ft
	High	09:13	1.4m / 4.5ft
	Low	15:10	0.1m / 0.4ft
	High	21:42	1.7m / 5.7ft
Tue 02 Jun	Low	04:09	0.1m / 0.4ft
	High	09:53	1.3m / 4.4ft
	Low	15:47	0.1m / 0.4ft
	High	22:18	1.7m / 5.5ft
Wed 03 Jun	Low	04:45	0.2m / 0.5ft
	High	10:31	1.3m / 4.3ft
	Low	16:24	0.2m / 0.5ft
	High	22:54	1.6m / 5.4ft
Thu 04 Jun	Low	05:22	0.2m / 0.6ft
	High	11:10	1.3m / 4.3ft
	Low	17:04	0.2m / 0.6ft
	High	23:29	1.6m / 5.2ft
Fri 05 Jun	Low	06:00	0.2m / 0.6ft
	High	11:51	1.3m / 4.3ft
	Low	17:47	0.2m / 0.7ft
Sat 06 Jun	High	00:08	1.6m / 5.1ft
	Low	06:41	0.2m / 0.6ft
	High	12:36	1.3m / 4.4ft
	Low	18:38	0.3m / 0.8ft
Sun 07 Jun	High	00:52	1.5m / 5.0ft
	Low	07:27	0.2m / 0.5ft
	High	13:27	1.4m / 4.6ft
	Low	19:36	0.3m / 0.9ft
Mon 08 Jun	High	01:42	1.5m / 5.0ft
	Low	08:16	0.1m / 0.3ft
	High	14:21	1.5m / 4.9ft
	Low	20:40	0.3m / 0.8ft
Tue 09 Jun	High	02:35	1.5m / 4.9ft
	Low	09:07	0.0m / 0.1ft
	High	15:18	1.6m / 5.2ft
	Low	21:45	0.2m / 0.7ft
Wed 10 Jun	High	03:33	1.5m / 4.8ft
	Low	10:01	-0.0m / -0.1ft
	High	16:18	1.7m / 5.6ft
	Low	22:51	0.2m / 0.5ft
Thu 11 Jun	High	04:35	1.5m / 4.8ft
	Low	10:56	-0.1m / -0.3ft
	High	17:19	1.8m / 5.9ft
	Low	23:55	0.1m / 0.3ft
Fri 12 Jun	High	05:39	1.5m / 4.8ft
	Low	11:53	-0.2m / -0.5ft
	High	18:19	1.9m / 6.3ft
Sat 13 Jun	Low	00:55	0.0m / 0.0ft
	High	06:41	1.5m / 4.8ft
	Low	12:50	-0.2m / -0.7ft
	High	19:16	2.0m / 6.5ft

Not for navigation. Generated 2026-05-16T03:20:12.571Z.

Predictions: NOAA CO-OPS station 8665530 — heights relative to MLLW.

Methodology Glossary

Not for navigation. Page generated 2026-05-16T03:20:12.571Z. Predictions refresh daily.