Copper Harbor Tide Chart
Alaska · NOAA Station 9450369 · 55.210°, -132.625°
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This Week’s Tides for Copper Harbor
High and low tide times and heights (ft, MLLW) for the week ahead.
| Low | 12:48 AM | 1.7 ft |
| High | 6:44 AM | 9.3 ft |
| Low | 12:18 PM | 2.6 ft |
| High | 6:54 PM | 11.7 ft |
| Low | 1:58 AM | 1.7 ft |
| High | 8:05 AM | 8.7 ft |
| Low | 1:08 PM | 3.7 ft |
| High | 7:43 PM | 11.5 ft |
| Low | 3:10 AM | 1.5 ft |
| High | 9:40 AM | 8.7 ft |
| Low | 2:15 PM | 4.5 ft |
| High | 8:40 PM | 11.4 ft |
| Low | 4:16 AM | 1.1 ft |
| High | 11:04 AM | 9.0 ft |
| Low | 3:33 PM | 4.9 ft |
| High | 9:41 PM | 11.4 ft |
| Low | 5:11 AM | 0.7 ft |
| High | 12:01 PM | 9.5 ft |
| Low | 4:41 PM | 4.8 ft |
| High | 10:38 PM | 11.7 ft |
| Low | 5:56 AM | 0.2 ft |
| High | 12:41 PM | 10.0 ft |
| Low | 5:34 PM | 4.5 ft |
| High | 11:27 PM | 12.0 ft |
| Low | 6:35 AM | -0.3 ft |
| High | 1:14 PM | 10.4 ft |
| Low | 6:18 PM | 4.1 ft |
Copper Harbor Tide Table — Next 30 Days
Every high and low tide for the next month at Copper Harbor, with heights in feet (MLLW), the daily tidal range, and sunrise & sunset.
| Day | Sunrise | Sunset | Tides (time · ft, MLLW) | Range | |||
|---|---|---|---|---|---|---|---|
| Tue, Jul 21Today | 4:39 AM | 9:13 PM | Low12:48 AM1.7 ft | High6:44 AM9.3 ft | Low12:18 PM2.6 ft | High6:54 PM11.7 ft | 10.0 ft |
| Wed, Jul 22 | 4:41 AM | 9:12 PM | Low1:58 AM1.7 ft | High8:05 AM8.7 ft | Low1:08 PM3.7 ft | High7:43 PM11.5 ft | 9.8 ft |
| Thu, Jul 23 | 4:43 AM | 9:10 PM | Low3:10 AM1.5 ft | High9:40 AM8.7 ft | Low2:15 PM4.5 ft | High8:40 PM11.4 ft | 9.9 ft |
| Fri, Jul 24 | 4:44 AM | 9:09 PM | Low4:16 AM1.1 ft | High11:04 AM9.0 ft | Low3:33 PM4.9 ft | High9:41 PM11.4 ft | 10.3 ft |
| Sat, Jul 25 | 4:46 AM | 9:07 PM | Low5:11 AM0.7 ft | High12:01 PM9.5 ft | Low4:41 PM4.8 ft | High10:38 PM11.7 ft | 11.0 ft |
| Sun, Jul 26 | 4:48 AM | 9:05 PM | Low5:56 AM0.2 ft | High12:41 PM10.0 ft | Low5:34 PM4.5 ft | High11:27 PM12.0 ft | 11.8 ft |
| Mon, Jul 27 | 4:49 AM | 9:04 PM | Low6:35 AM-0.3 ft | High1:14 PM10.4 ft | Low6:18 PM4.1 ft | — | 10.7 ft |
| Tue, Jul 28 | 4:51 AM | 9:02 PM | High12:10 AM12.4 ft | Low7:10 AM-0.7 ft | High1:44 PM10.7 ft | Low6:57 PM3.6 ft | 13.1 ft |
| Wed, Jul 29 | 4:53 AM | 9:00 PM | High12:48 AM12.6 ft | Low7:42 AM-1.0 ft | High2:12 PM11.0 ft | Low7:34 PM3.2 ft | 13.6 ft |
| Thu, Jul 30 | 4:55 AM | 8:58 PM | High1:25 AM12.7 ft | Low8:13 AM-1.2 ft | High2:40 PM11.3 ft | Low8:10 PM2.7 ft | 13.9 ft |
| Fri, Jul 31 | 4:56 AM | 8:56 PM | High2:01 AM12.6 ft | Low8:42 AM-1.1 ft | High3:08 PM11.6 ft | Low8:47 PM2.3 ft | 13.7 ft |
| Sat, Aug 1 | 4:58 AM | 8:54 PM | High2:37 AM12.4 ft | Low9:11 AM-0.8 ft | High3:36 PM11.9 ft | Low9:26 PM1.9 ft | 13.2 ft |
| Sun, Aug 2 | 5:00 AM | 8:52 PM | High3:16 AM11.9 ft | Low9:41 AM-0.3 ft | High4:05 PM12.1 ft | Low10:07 PM1.6 ft | 12.4 ft |
| Mon, Aug 3 | 5:02 AM | 8:50 PM | High3:58 AM11.3 ft | Low10:11 AM0.5 ft | High4:36 PM12.3 ft | Low10:54 PM1.4 ft | 11.8 ft |
| Tue, Aug 4 | 5:04 AM | 8:48 PM | High4:48 AM10.6 ft | Low10:45 AM1.4 ft | High5:12 PM12.4 ft | Low11:48 PM1.3 ft | 11.1 ft |
| Wed, Aug 5 | 5:05 AM | 8:46 PM | High5:48 AM9.8 ft | Low11:23 AM2.5 ft | High5:55 PM12.5 ft | — | 10.0 ft |
| Thu, Aug 6 | 5:07 AM | 8:44 PM | Low12:54 AM1.1 ft | High7:05 AM9.2 ft | Low12:13 PM3.5 ft | High6:50 PM12.5 ft | 11.4 ft |
| Fri, Aug 7 | 5:09 AM | 8:42 PM | Low2:13 AM0.8 ft | High8:43 AM9.0 ft | Low1:25 PM4.3 ft | High7:58 PM12.5 ft | 11.7 ft |
| Sat, Aug 8 | 5:11 AM | 8:40 PM | Low3:33 AM0.3 ft | High10:19 AM9.4 ft | Low2:58 PM4.6 ft | High9:14 PM12.7 ft | 12.4 ft |
| Sun, Aug 9 | 5:13 AM | 8:38 PM | Low4:42 AM-0.5 ft | High11:28 AM10.1 ft | Low4:23 PM4.3 ft | High10:26 PM13.1 ft | 13.6 ft |
| Mon, Aug 10 | 5:15 AM | 8:36 PM | Low5:39 AM-1.3 ft | High12:19 PM10.9 ft | Low5:30 PM3.6 ft | High11:29 PM13.6 ft | 14.9 ft |
| Tue, Aug 11 | 5:17 AM | 8:34 PM | Low6:29 AM-1.9 ft | High1:01 PM11.6 ft | Low6:26 PM2.7 ft | — | 13.5 ft |
| Wed, Aug 12 | 5:19 AM | 8:31 PM | High12:25 AM13.9 ft | Low7:13 AM-2.2 ft | High1:40 PM12.2 ft | Low7:17 PM1.9 ft | 16.1 ft |
| Thu, Aug 13 | 5:20 AM | 8:29 PM | High1:15 AM14.0 ft | Low7:54 AM-2.1 ft | High2:16 PM12.6 ft | Low8:04 PM1.2 ft | 16.1 ft |
| Fri, Aug 14 | 5:22 AM | 8:27 PM | High2:02 AM13.7 ft | Low8:32 AM-1.7 ft | High2:51 PM12.9 ft | Low8:49 PM0.8 ft | 15.4 ft |
| Sat, Aug 15 | 5:24 AM | 8:25 PM | High2:47 AM13.1 ft | Low9:08 AM-0.9 ft | High3:26 PM13.0 ft | Low9:34 PM0.6 ft | 14.0 ft |
| Sun, Aug 16 | 5:26 AM | 8:22 PM | High3:33 AM12.3 ft | Low9:42 AM0.1 ft | High3:59 PM12.9 ft | Low10:18 PM0.7 ft | 12.8 ft |
| Mon, Aug 17 | 5:28 AM | 8:20 PM | High4:19 AM11.3 ft | Low10:15 AM1.2 ft | High4:33 PM12.6 ft | Low11:04 PM1.0 ft | 11.6 ft |
| Tue, Aug 18 | 5:30 AM | 8:18 PM | High5:09 AM10.4 ft | Low10:49 AM2.4 ft | High5:09 PM12.1 ft | Low11:56 PM1.4 ft | 10.7 ft |
| Wed, Aug 19 | 5:32 AM | 8:15 PM | High6:09 AM9.5 ft | Low11:25 AM3.6 ft | High5:49 PM11.7 ft | — | 8.1 ft |
About Copper Harbor tides
Tide predictions for Copper Harbor come from NOAA station 9450369 (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.
Copper Harbor 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 Copper Harbor today?+
Today (Tuesday, July 21), high tide at Copper Harbor is at 6:44 AM (9.3 ft), 6:54 PM (11.7 ft). Heights are referenced to MLLW (Mean Lower Low Water).
What time is low tide in Copper Harbor today?+
Today, low tide at Copper Harbor is at 12:48 AM (1.7 ft), 12:18 PM (2.6 ft).
What tidal datum do these Copper Harbor 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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