Old Harbor Tide Chart
Alaska · NOAA Station 9457527 · 57.203°, -153.304°
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This Week’s Tides for Old Harbor
High and low tide times and heights (ft, MLLW) for the week ahead.
| Low | 3:02 AM | 1.5 ft |
| High | 9:00 AM | 5.0 ft |
| Low | 2:11 PM | 3.1 ft |
| High | 8:46 PM | 7.4 ft |
| Low | 4:10 AM | 1.2 ft |
| High | 10:36 AM | 4.9 ft |
| Low | 3:20 PM | 3.6 ft |
| High | 9:43 PM | 7.3 ft |
| Low | 5:13 AM | 0.9 ft |
| High | 12:04 PM | 5.2 ft |
| Low | 4:34 PM | 3.8 ft |
| High | 10:43 PM | 7.4 ft |
| Low | 6:08 AM | 0.4 ft |
| High | 12:59 PM | 5.6 ft |
| Low | 5:40 PM | 3.7 ft |
| High | 11:38 PM | 7.6 ft |
| Low | 6:54 AM | 0.0 ft |
| High | 1:37 PM | 6.0 ft |
| Low | 6:35 PM | 3.5 ft |
| High | 12:27 AM | 7.9 ft |
| Low | 7:34 AM | -0.4 ft |
| High | 2:09 PM | 6.4 ft |
| Low | 7:20 PM | 3.2 ft |
| High | 1:10 AM | 8.1 ft |
| Low | 8:09 AM | -0.7 ft |
| High | 2:38 PM | 6.7 ft |
| Low | 8:00 PM | 2.9 ft |
Old Harbor Tide Table — Next 30 Days
Every high and low tide for the next month at Old Harbor, with heights in feet (MLLW), the daily tidal range, and sunrise & sunset.
| Day | Sunrise | Sunset | Tides (time · ft, MLLW) | Range | |||
|---|---|---|---|---|---|---|---|
| Wed, Jul 22Today | 5:52 AM | 10:47 PM | Low3:02 AM1.5 ft | High9:00 AM5.0 ft | Low2:11 PM3.1 ft | High8:46 PM7.4 ft | 5.9 ft |
| Thu, Jul 23 | 5:54 AM | 10:45 PM | Low4:10 AM1.2 ft | High10:36 AM4.9 ft | Low3:20 PM3.6 ft | High9:43 PM7.3 ft | 6.1 ft |
| Fri, Jul 24 | 5:55 AM | 10:43 PM | Low5:13 AM0.9 ft | High12:04 PM5.2 ft | Low4:34 PM3.8 ft | High10:43 PM7.4 ft | 6.5 ft |
| Sat, Jul 25 | 5:57 AM | 10:41 PM | Low6:08 AM0.4 ft | High12:59 PM5.6 ft | Low5:40 PM3.7 ft | High11:38 PM7.6 ft | 7.2 ft |
| Sun, Jul 26 | 5:59 AM | 10:39 PM | Low6:54 AM0.0 ft | High1:37 PM6.0 ft | Low6:35 PM3.5 ft | — | 6.0 ft |
| Mon, Jul 27 | 6:01 AM | 10:37 PM | High12:27 AM7.9 ft | Low7:34 AM-0.4 ft | High2:09 PM6.4 ft | Low7:20 PM3.2 ft | 8.3 ft |
| Tue, Jul 28 | 6:03 AM | 10:35 PM | High1:10 AM8.1 ft | Low8:09 AM-0.7 ft | High2:38 PM6.7 ft | Low8:00 PM2.9 ft | 8.8 ft |
| Wed, Jul 29 | 6:05 AM | 10:33 PM | High1:49 AM8.3 ft | Low8:41 AM-0.8 ft | High3:06 PM7.0 ft | Low8:37 PM2.6 ft | 9.1 ft |
| Thu, Jul 30 | 6:07 AM | 10:31 PM | High2:26 AM8.3 ft | Low9:11 AM-0.8 ft | High3:34 PM7.3 ft | Low9:12 PM2.3 ft | 9.1 ft |
| Fri, Jul 31 | 6:09 AM | 10:29 PM | High3:02 AM8.2 ft | Low9:39 AM-0.6 ft | High4:02 PM7.6 ft | Low9:47 PM2.0 ft | 8.8 ft |
| Sat, Aug 1 | 6:11 AM | 10:27 PM | High3:39 AM7.9 ft | Low10:06 AM-0.3 ft | High4:31 PM7.8 ft | Low10:24 PM1.7 ft | 8.2 ft |
| Sun, Aug 2 | 6:13 AM | 10:25 PM | High4:17 AM7.6 ft | Low10:34 AM0.1 ft | High5:00 PM7.9 ft | Low11:04 PM1.4 ft | 7.8 ft |
| Mon, Aug 3 | 6:15 AM | 10:23 PM | High5:00 AM7.1 ft | Low11:04 AM0.7 ft | High5:31 PM8.1 ft | Low11:50 PM1.2 ft | 7.4 ft |
| Tue, Aug 4 | 6:17 AM | 10:20 PM | High5:49 AM6.5 ft | Low11:38 AM1.3 ft | High6:08 PM8.2 ft | — | 6.9 ft |
| Wed, Aug 5 | 6:19 AM | 10:18 PM | Low12:44 AM1.0 ft | High6:48 AM5.9 ft | Low12:18 PM2.1 ft | High6:53 PM8.2 ft | 7.2 ft |
| Thu, Aug 6 | 6:21 AM | 10:16 PM | Low1:51 AM0.8 ft | High8:04 AM5.4 ft | Low1:10 PM2.8 ft | High7:50 PM8.1 ft | 7.3 ft |
| Fri, Aug 7 | 6:23 AM | 10:14 PM | Low3:11 AM0.5 ft | High9:35 AM5.2 ft | Low2:26 PM3.4 ft | High9:02 PM8.2 ft | 7.7 ft |
| Sat, Aug 8 | 6:25 AM | 10:11 PM | Low4:30 AM0.0 ft | High11:08 AM5.5 ft | Low3:58 PM3.5 ft | High10:18 PM8.4 ft | 8.4 ft |
| Sun, Aug 9 | 6:27 AM | 10:09 PM | Low5:40 AM-0.6 ft | High12:21 PM6.1 ft | Low5:22 PM3.3 ft | High11:29 PM8.7 ft | 9.3 ft |
| Mon, Aug 10 | 6:29 AM | 10:07 PM | Low6:39 AM-1.2 ft | High1:14 PM6.8 ft | Low6:31 PM2.7 ft | — | 8.0 ft |
| Tue, Aug 11 | 6:31 AM | 10:04 PM | High12:32 AM9.1 ft | Low7:29 AM-1.6 ft | High1:57 PM7.5 ft | Low7:29 PM2.0 ft | 10.7 ft |
| Wed, Aug 12 | 6:33 AM | 10:02 PM | High1:27 AM9.4 ft | Low8:14 AM-1.8 ft | High2:36 PM8.0 ft | Low8:20 PM1.3 ft | 11.2 ft |
| Thu, Aug 13 | 6:35 AM | 9:59 PM | High2:17 AM9.4 ft | Low8:55 AM-1.6 ft | High3:13 PM8.4 ft | Low9:07 PM0.9 ft | 11.0 ft |
| Fri, Aug 14 | 6:38 AM | 9:57 PM | High3:04 AM9.1 ft | Low9:33 AM-1.1 ft | High3:49 PM8.6 ft | Low9:52 PM0.6 ft | 10.2 ft |
| Sat, Aug 15 | 6:40 AM | 9:55 PM | High3:50 AM8.5 ft | Low10:08 AM-0.5 ft | High4:24 PM8.6 ft | Low10:36 PM0.5 ft | 9.1 ft |
| Sun, Aug 16 | 6:42 AM | 9:52 PM | High4:34 AM7.8 ft | Low10:42 AM0.4 ft | High4:59 PM8.5 ft | Low11:20 PM0.7 ft | 8.1 ft |
| Mon, Aug 17 | 6:44 AM | 9:50 PM | High5:19 AM7.0 ft | Low11:14 AM1.2 ft | High5:33 PM8.2 ft | — | 7.0 ft |
| Tue, Aug 18 | 6:46 AM | 9:47 PM | Low12:05 AM0.9 ft | High6:07 AM6.2 ft | Low11:45 AM2.1 ft | High6:10 PM7.8 ft | 6.9 ft |
| Wed, Aug 19 | 6:48 AM | 9:44 PM | Low12:57 AM1.3 ft | High7:02 AM5.4 ft | Low12:20 PM2.9 ft | High6:52 PM7.4 ft | 6.1 ft |
| Thu, Aug 20 | 6:50 AM | 9:42 PM | Low2:02 AM1.6 ft | High8:14 AM4.9 ft | Low1:05 PM3.6 ft | High7:45 PM7.0 ft | 5.4 ft |
About Old Harbor tides
Tide predictions for Old Harbor come from NOAA station 9457527 (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.
Old 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 Old Harbor today?+
Today (Wednesday, July 22), high tide at Old Harbor is at 9:00 AM (5.0 ft), 8:46 PM (7.4 ft). Heights are referenced to MLLW (Mean Lower Low Water).
What time is low tide in Old Harbor today?+
Today, low tide at Old Harbor is at 3:02 AM (1.5 ft), 2:11 PM (3.1 ft).
What tidal datum do these Old 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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