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Next high tide at Charleston, SC: 17:19 GMT-4, 1.62 m

Heights relative to MLLW. 2026-04-26.

Tide curve — next 24 hours

-0.1 m0.9 m1.9 mHeight (MLLW)16:0020:0000:0004:0008:0012:00H 17:19L 23:20H 05:33L 11:47nowTime (America/New_York)

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.

7-day tide table

DayTypeTimeHeight
Sun 26 AprHigh17:191.62 m
Low23:200.09 m
Mon 27 AprHigh05:331.60 m
Low11:470.04 m
High18:111.70 m
Tue 28 AprLow00:150.06 m
High06:211.59 m
Low12:320.01 m
High18:571.78 m
Wed 29 AprLow01:050.03 m
High07:041.57 m
Low13:13-0.00 m
High19:381.82 m
Thu 30 AprLow01:520.02 m
High07:441.54 m
Low13:520.00 m
High20:171.84 m
Fri 01 MayLow02:350.02 m
High08:221.51 m
Low14:290.03 m
High20:541.83 m
Sat 02 MayLow03:160.04 m
High09:011.48 m
Low15:040.06 m
High21:301.80 m

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

Sun & moon today

Sunrise
06:37
Sunset
19:57
Moonrise
15:27
Moonset
03:52
Moon phase
Waxing gibbous (75% illuminated)

Current conditions

Conditions data not available for this station. Wind, swell and water temperature ride along with Open-Meteo Marine; gauge-only stations like the UK EA Flood network publish water level only.

Solunar 7-day rating

The angler tradition that rates each day for fish-bite likelihood using moon transits and rise/set. One to five stars. Not a scientific forecast.

  • Sun
    ★★★★★
  • Mon
    ★★★★★
  • Tue
    ★★★★★
  • Wed
    ★★★★★
  • Thu
    ★★★★★
  • Fri
    ★★★★★
  • Sat
    ★★★★★

Best windows Sun 26 Apr

Suggested time slots at Charleston, SC, derived from the tide, sun, moon, and conditions data on this page. Rough guidance, not a forecast.

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 about tides at 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.

DayTypeTimeHeight
Sun 26 AprHigh17:191.62 m
Low23:200.09 m
Mon 27 AprHigh05:331.60 m
Low11:470.04 m
High18:111.70 m
Tue 28 AprLow00:150.06 m
High06:211.59 m
Low12:320.01 m
High18:571.78 m
Wed 29 AprLow01:050.03 m
High07:041.57 m
Low13:13-0.00 m
High19:381.82 m
Thu 30 AprLow01:520.02 m
High07:441.54 m
Low13:520.00 m
High20:171.84 m
Fri 01 MayLow02:350.02 m
High08:221.51 m
Low14:290.03 m
High20:541.83 m
Sat 02 MayLow03:160.04 m
High09:011.48 m
Low15:040.06 m
High21:301.80 m
Sun 03 MayLow03:550.07 m
High09:391.44 m
Low15:380.11 m
Mon 04 May—
Tue 05 May—
Wed 06 May—
Thu 07 May—
Fri 08 May—
Sat 09 May—
Sun 10 May—
Mon 11 May—
Tue 12 May—
Wed 13 May—
Thu 14 May—
Fri 15 May—
Sat 16 May—
Sun 17 May—
Mon 18 May—
Tue 19 May—
Wed 20 May—
Thu 21 May—
Fri 22 May—
Sat 23 May—
Sun 24 May—
Mon 25 May—

Not for navigation. Generated 2026-04-26T16:21:12.530Z.

Read about how these predictions are made on the methodology page. Unfamiliar with terms like spring tide or datum? See the glossary.

Not for navigation. Page generated 2026-04-26T16:21:12.530Z. Predictions refresh daily.