Mon Sep 14 at Isle of Palms: high tide at 10:38 AM (5.9 ft) and 10:41 PM (5.2 ft); low tide at 4:09 AM (0.4 ft) and 4:45 PM (0.7 ft) — measured for NOAA's in-town Isle of Palms station #8665494.
| Day | Time | Tide | Height |
|---|---|---|---|
| Mon Sep 14 | 4:09 AM | Low | 0.4 ft (0.11 m) |
| 10:38 AM | High | 5.9 ft (1.78 m) | |
| 4:45 PM | Low | 0.7 ft (0.20 m) | |
| 10:41 PM | High | 5.2 ft (1.59 m) | |
| Tue Sep 15 | 4:47 AM | Low | 0.6 ft (0.18 m) |
| 11:21 AM | High | 5.7 ft (1.73 m) | |
| 5:31 PM | Low | 1.0 ft (0.29 m) | |
| 11:24 PM | High | 4.9 ft (1.51 m) | |
| Wed Sep 16 | 5:25 AM | Low | 0.8 ft (0.26 m) |
| 12:06 PM | High | 5.5 ft (1.67 m) | |
| 6:19 PM | Low | 1.2 ft (0.37 m) | |
| Thu Sep 17 | 12:09 AM | High | 4.7 ft (1.44 m) |
| 6:07 AM | Low | 1.1 ft (0.33 m) | |
| 12:54 PM | High | 5.3 ft (1.62 m) | |
| 7:11 PM | Low | 1.4 ft (0.44 m) | |
| Fri Sep 18 | 12:58 AM | High | 4.6 ft (1.39 m) |
| 6:55 AM | Low | 1.2 ft (0.38 m) | |
| 1:46 PM | High | 5.2 ft (1.59 m) | |
| 8:06 PM | Low | 1.6 ft (0.48 m) | |
| Sat Sep 19 | 1:51 AM | High | 4.5 ft (1.36 m) |
| 7:50 AM | Low | 1.3 ft (0.41 m) | |
| 2:40 PM | High | 5.2 ft (1.58 m) | |
| 9:01 PM | Low | 1.6 ft (0.48 m) | |
| Sun Sep 20 | 2:46 AM | High | 4.5 ft (1.36 m) |
| 8:47 AM | Low | 1.3 ft (0.41 m) | |
| 3:35 PM | High | 5.2 ft (1.59 m) | |
| 9:53 PM | Low | 1.5 ft (0.46 m) | |
| Mon Sep 21 | 3:43 AM | High | 4.6 ft (1.39 m) |
| 9:44 AM | Low | 1.2 ft (0.38 m) | |
| 4:29 PM | High | 5.3 ft (1.63 m) | |
| 10:43 PM | Low | 1.4 ft (0.41 m) | |
| Tue Sep 22 | 4:38 AM | High | 4.7 ft (1.44 m) |
| 10:39 AM | Low | 1.1 ft (0.34 m) | |
| 5:19 PM | High | 5.5 ft (1.67 m) | |
| 11:28 PM | Low | 1.1 ft (0.35 m) |
Isle of Palms is semidiurnal — paired highs (5.9 and 5.2 ft today) and paired lows of similar size. An average swing here this week moves 3.9 ft of water. A 5.5 ft swing — Isle of Palms's biggest this table — runs from the 4:09 AM low on Mon Sep 14 into the next high. Isle of Palms tops out at 5.9 ft (Mon Sep 14 10:38 AM) and bottoms at 0.4 ft (Mon Sep 14 4:09 AM).
Isle of Palms mid-swing times below mark predicted peak flow on its 3.9 ft average cycle (why moving water matters):
Sea surface temperature 14 km away at Charleston Offshore SC is currently 24.3 °C (75.8 °F), 0.0 °C below the seasonal normal, from satellite and ocean-model data refreshed daily.
Isle of Palms numbers: NOAA CO-OPS #8665494 (Isle of Palms Pier), 0.5 km off Isle of Palms center; this open-water pick beat 29 closer-in candidates. Onshore wind or a storm can push real water at Isle of Palms above the 5.9 ft predicted peak; offshore wind can hold it under. All Isle of Palms times station-local, refreshed 2026-09-14.
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