Morse Cove, Duke Island Tide Chart
Alaska · NOAA Station 9450172 · 54.920°, -131.255°
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This Week’s Tides for Morse Cove, Duke Island
High and low tide times and heights (ft, MLLW) for the week ahead.
| Low | 1:57 AM | 2.6 ft |
| High | 7:57 AM | 9.8 ft |
| Low | 1:36 PM | 4.7 ft |
| High | 7:51 PM | 12.7 ft |
| Low | 3:10 AM | 2.6 ft |
| High | 9:24 AM | 9.4 ft |
| Low | 2:45 PM | 5.6 ft |
| High | 8:55 PM | 12.5 ft |
| Low | 4:21 AM | 2.2 ft |
| High | 10:44 AM | 9.8 ft |
| Low | 4:01 PM | 6.0 ft |
| High | 9:59 PM | 12.6 ft |
| Low | 5:19 AM | 1.6 ft |
| High | 11:44 AM | 10.5 ft |
| Low | 5:05 PM | 5.7 ft |
| High | 10:57 PM | 13.1 ft |
| Low | 6:06 AM | 0.8 ft |
| High | 12:29 PM | 11.2 ft |
| Low | 5:57 PM | 5.1 ft |
| High | 11:46 PM | 13.7 ft |
| Low | 6:46 AM | 0.1 ft |
| High | 1:05 PM | 12.0 ft |
| Low | 6:39 PM | 4.4 ft |
| High | 12:28 AM | 14.3 ft |
| Low | 7:21 AM | -0.6 ft |
| High | 1:38 PM | 12.6 ft |
| Low | 7:17 PM | 3.7 ft |
Morse Cove, Duke Island Tide Table — Next 30 Days
Every high and low tide for the next month at Morse Cove, Duke Island, with heights in feet (MLLW), the daily tidal range, and sunrise & sunset.
| Day | Sunrise | Sunset | Tides (time · ft, MLLW) | Range | |||
|---|---|---|---|---|---|---|---|
| Wed, Jul 22Today | 4:37 AM | 9:05 PM | Low1:57 AM2.6 ft | High7:57 AM9.8 ft | Low1:36 PM4.7 ft | High7:51 PM12.7 ft | 10.1 ft |
| Thu, Jul 23 | 4:39 AM | 9:03 PM | Low3:10 AM2.6 ft | High9:24 AM9.4 ft | Low2:45 PM5.6 ft | High8:55 PM12.5 ft | 9.9 ft |
| Fri, Jul 24 | 4:40 AM | 9:02 PM | Low4:21 AM2.2 ft | High10:44 AM9.8 ft | Low4:01 PM6.0 ft | High9:59 PM12.6 ft | 10.4 ft |
| Sat, Jul 25 | 4:42 AM | 9:00 PM | Low5:19 AM1.6 ft | High11:44 AM10.5 ft | Low5:05 PM5.7 ft | High10:57 PM13.1 ft | 11.5 ft |
| Sun, Jul 26 | 4:44 AM | 8:58 PM | Low6:06 AM0.8 ft | High12:29 PM11.2 ft | Low5:57 PM5.1 ft | High11:46 PM13.7 ft | 12.9 ft |
| Mon, Jul 27 | 4:45 AM | 8:57 PM | Low6:46 AM0.1 ft | High1:05 PM12.0 ft | Low6:39 PM4.4 ft | — | 11.9 ft |
| Tue, Jul 28 | 4:47 AM | 8:55 PM | High12:28 AM14.3 ft | Low7:21 AM-0.6 ft | High1:38 PM12.6 ft | Low7:17 PM3.7 ft | 14.9 ft |
| Wed, Jul 29 | 4:49 AM | 8:53 PM | High1:06 AM14.8 ft | Low7:53 AM-1.2 ft | High2:09 PM13.2 ft | Low7:53 PM3.0 ft | 16.0 ft |
| Thu, Jul 30 | 4:51 AM | 8:51 PM | High1:42 AM15.1 ft | Low8:23 AM-1.5 ft | High2:39 PM13.6 ft | Low8:27 PM2.4 ft | 16.6 ft |
| Fri, Jul 31 | 4:52 AM | 8:49 PM | High2:17 AM15.2 ft | Low8:52 AM-1.6 ft | High3:08 PM14.0 ft | Low9:02 PM1.9 ft | 16.8 ft |
| Sat, Aug 1 | 4:54 AM | 8:48 PM | High2:52 AM15.0 ft | Low9:22 AM-1.3 ft | High3:37 PM14.3 ft | Low9:39 PM1.6 ft | 16.3 ft |
| Sun, Aug 2 | 4:56 AM | 8:46 PM | High3:29 AM14.5 ft | Low9:52 AM-0.7 ft | High4:07 PM14.5 ft | Low10:18 PM1.4 ft | 15.2 ft |
| Mon, Aug 3 | 4:58 AM | 8:44 PM | High4:08 AM13.7 ft | Low10:24 AM0.2 ft | High4:39 PM14.5 ft | Low11:03 PM1.4 ft | 14.3 ft |
| Tue, Aug 4 | 4:59 AM | 8:42 PM | High4:53 AM12.7 ft | Low11:00 AM1.4 ft | High5:16 PM14.4 ft | Low11:55 PM1.5 ft | 13.0 ft |
| Wed, Aug 5 | 5:01 AM | 8:40 PM | High5:47 AM11.5 ft | Low11:43 AM2.8 ft | High6:02 PM14.1 ft | — | 11.3 ft |
| Thu, Aug 6 | 5:03 AM | 8:38 PM | Low12:59 AM1.7 ft | High6:57 AM10.5 ft | Low12:37 PM4.2 ft | High7:00 PM13.9 ft | 12.2 ft |
| Fri, Aug 7 | 5:05 AM | 8:36 PM | Low2:16 AM1.6 ft | High8:26 AM10.0 ft | Low1:52 PM5.2 ft | High8:15 PM13.8 ft | 12.2 ft |
| Sat, Aug 8 | 5:07 AM | 8:33 PM | Low3:39 AM0.9 ft | High10:00 AM10.5 ft | Low3:23 PM5.5 ft | High9:36 PM14.2 ft | 13.3 ft |
| Sun, Aug 9 | 5:09 AM | 8:31 PM | Low4:51 AM-0.2 ft | High11:13 AM11.5 ft | Low4:45 PM4.8 ft | High10:49 PM15.1 ft | 15.3 ft |
| Mon, Aug 10 | 5:10 AM | 8:29 PM | Low5:50 AM-1.4 ft | High12:09 PM12.8 ft | Low5:50 PM3.6 ft | High11:50 PM16.1 ft | 17.5 ft |
| Tue, Aug 11 | 5:12 AM | 8:27 PM | Low6:40 AM-2.5 ft | High12:56 PM14.0 ft | Low6:44 PM2.3 ft | — | 16.5 ft |
| Wed, Aug 12 | 5:14 AM | 8:25 PM | High12:43 AM16.8 ft | Low7:24 AM-3.1 ft | High1:37 PM15.0 ft | Low7:32 PM1.1 ft | 19.9 ft |
| Thu, Aug 13 | 5:16 AM | 8:23 PM | High1:31 AM17.1 ft | Low8:05 AM-3.3 ft | High2:16 PM15.7 ft | Low8:17 PM0.2 ft | 20.4 ft |
| Fri, Aug 14 | 5:18 AM | 8:20 PM | High2:16 AM16.9 ft | Low8:43 AM-2.9 ft | High2:53 PM16.0 ft | Low9:00 PM-0.2 ft | 19.8 ft |
| Sat, Aug 15 | 5:20 AM | 8:18 PM | High2:59 AM16.2 ft | Low9:20 AM-2.0 ft | High3:28 PM16.0 ft | Low9:43 PM-0.2 ft | 18.2 ft |
| Sun, Aug 16 | 5:22 AM | 8:16 PM | High3:41 AM15.1 ft | Low9:56 AM-0.7 ft | High4:03 PM15.6 ft | Low10:25 PM0.3 ft | 16.3 ft |
| Mon, Aug 17 | 5:23 AM | 8:14 PM | High4:23 AM13.7 ft | Low10:31 AM0.9 ft | High4:37 PM14.9 ft | Low11:10 PM1.0 ft | 14.0 ft |
| Tue, Aug 18 | 5:25 AM | 8:11 PM | High5:08 AM12.2 ft | Low11:07 AM2.6 ft | High5:13 PM14.0 ft | Low11:59 PM1.9 ft | 12.1 ft |
| Wed, Aug 19 | 5:27 AM | 8:09 PM | High6:01 AM10.8 ft | Low11:47 AM4.3 ft | High5:55 PM13.1 ft | — | 8.8 ft |
| Thu, Aug 20 | 5:29 AM | 8:07 PM | Low1:00 AM2.8 ft | High7:10 AM9.7 ft | Low12:39 PM5.7 ft | High6:49 PM12.2 ft | 9.4 ft |
About Morse Cove, Duke Island tides
Tide predictions for Morse Cove, Duke Island come from NOAA station 9450172 (Alaska), computed from long-term harmonic analysis of observed water levels. Heights are shown in feet relative to MLLW (Mean Lower Low Water) — the same datum used on US nautical charts — so they line up directly with charted depths.
Morse Cove, Duke Island typically sees a mixed semidiurnal tide, with two highs and two lows of differing heights each day. Use the curve above to time a harbor entrance, a beach walk, fishing a moving tide, or clearing a shallow bar — and remember that wind and pressure can push the real water level above or below prediction. The daily tidal range in the 30-day table shows how much water moves each day: bigger ranges around the new and full moon mean stronger currents.
Frequently asked
What time is high tide in Morse Cove, Duke Island today?+
Today (Wednesday, July 22), high tide at Morse Cove, Duke Island is at 7:57 AM (9.8 ft), 7:51 PM (12.7 ft). Heights are referenced to MLLW (Mean Lower Low Water).
What time is low tide in Morse Cove, Duke Island today?+
Today, low tide at Morse Cove, Duke Island is at 1:57 AM (2.6 ft), 1:36 PM (4.7 ft).
What tidal datum do these Morse Cove, Duke Island tide heights use?+
All heights are given in feet relative to MLLW (Mean Lower Low Water), the standard NOAA chart datum for US tidal waters. A tide of 0.0 ft equals the chart datum; negative tides fall below it.
How accurate are these tide predictions?+
These are NOAA harmonic predictions — highly accurate for the astronomical tide. Real water levels can still differ with wind, barometric pressure, and storms, so always check current conditions before getting underway.
Never mistime a tide again.
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