Port William, Shuyak Island Tide Chart
Alaska · NOAA Station 9457313 · 58.490°, -152.584°
Want live wind, waves, and radar right on your chart? See it in Pathr →
This Week’s Tides for Port William, Shuyak Island
High and low tide times and heights (ft, MLLW) for the week ahead.
| Low | 3:39 AM | 2.6 ft |
| High | 9:48 AM | 8.9 ft |
| Low | 3:09 PM | 4.7 ft |
| High | 9:43 PM | 12.0 ft |
| Low | 4:51 AM | 2.6 ft |
| High | 11:15 AM | 8.5 ft |
| Low | 4:18 PM | 5.8 ft |
| High | 10:45 PM | 11.7 ft |
| Low | 6:01 AM | 2.3 ft |
| High | 12:39 PM | 8.8 ft |
| Low | 5:37 PM | 6.2 ft |
| High | 11:50 PM | 11.9 ft |
| Low | 7:01 AM | 1.6 ft |
| High | 1:42 PM | 9.5 ft |
| Low | 6:45 PM | 6.0 ft |
| High | 12:48 AM | 12.3 ft |
| Low | 7:50 AM | 0.9 ft |
| High | 2:27 PM | 10.3 ft |
| Low | 7:39 PM | 5.5 ft |
| High | 1:38 AM | 12.9 ft |
| Low | 8:30 AM | 0.1 ft |
| High | 3:02 PM | 11.0 ft |
| Low | 8:23 PM | 4.8 ft |
| High | 2:21 AM | 13.4 ft |
| Low | 9:06 AM | -0.7 ft |
| High | 3:34 PM | 11.6 ft |
| Low | 9:02 PM | 4.1 ft |
Port William, Shuyak Island Tide Table — Next 30 Days
Every high and low tide for the next month at Port William, Shuyak Island, with heights in feet (MLLW), the daily tidal range, and sunrise & sunset.
| Day | Sunrise | Sunset | Tides (time · ft, MLLW) | Range | |||
|---|---|---|---|---|---|---|---|
| Wed, Jul 22Today | 5:40 AM | 10:52 PM | Low3:39 AM2.6 ft | High9:48 AM8.9 ft | Low3:09 PM4.7 ft | High9:43 PM12.0 ft | 9.4 ft |
| Thu, Jul 23 | 5:42 AM | 10:51 PM | Low4:51 AM2.6 ft | High11:15 AM8.5 ft | Low4:18 PM5.8 ft | High10:45 PM11.7 ft | 9.1 ft |
| Fri, Jul 24 | 5:44 AM | 10:49 PM | Low6:01 AM2.3 ft | High12:39 PM8.8 ft | Low5:37 PM6.2 ft | High11:50 PM11.9 ft | 9.6 ft |
| Sat, Jul 25 | 5:46 AM | 10:47 PM | Low7:01 AM1.6 ft | High1:42 PM9.5 ft | Low6:45 PM6.0 ft | — | 7.9 ft |
| Sun, Jul 26 | 5:48 AM | 10:44 PM | High12:48 AM12.3 ft | Low7:50 AM0.9 ft | High2:27 PM10.3 ft | Low7:39 PM5.5 ft | 11.4 ft |
| Mon, Jul 27 | 5:50 AM | 10:42 PM | High1:38 AM12.9 ft | Low8:30 AM0.1 ft | High3:02 PM11.0 ft | Low8:23 PM4.8 ft | 12.8 ft |
| Tue, Jul 28 | 5:52 AM | 10:40 PM | High2:21 AM13.4 ft | Low9:06 AM-0.7 ft | High3:34 PM11.6 ft | Low9:02 PM4.1 ft | 14.1 ft |
| Wed, Jul 29 | 5:54 AM | 10:38 PM | High2:58 AM13.9 ft | Low9:39 AM-1.2 ft | High4:04 PM12.2 ft | Low9:38 PM3.4 ft | 15.1 ft |
| Thu, Jul 30 | 5:56 AM | 10:36 PM | High3:33 AM14.2 ft | Low10:10 AM-1.5 ft | High4:32 PM12.7 ft | Low10:12 PM2.7 ft | 15.7 ft |
| Fri, Jul 31 | 5:59 AM | 10:34 PM | High4:07 AM14.2 ft | Low10:39 AM-1.6 ft | High4:59 PM13.1 ft | Low10:46 PM2.2 ft | 15.8 ft |
| Sat, Aug 1 | 6:01 AM | 10:31 PM | High4:41 AM14.0 ft | Low11:08 AM-1.3 ft | High5:27 PM13.4 ft | Low11:21 PM1.7 ft | 15.3 ft |
| Sun, Aug 2 | 6:03 AM | 10:29 PM | High5:17 AM13.6 ft | Low11:36 AM-0.6 ft | High5:55 PM13.7 ft | Low11:59 PM1.4 ft | 14.3 ft |
| Mon, Aug 3 | 6:05 AM | 10:27 PM | High5:56 AM12.9 ft | Low12:07 PM0.3 ft | High6:26 PM13.8 ft | — | 13.5 ft |
| Tue, Aug 4 | 6:07 AM | 10:24 PM | Low12:41 AM1.2 ft | High6:39 AM12.0 ft | Low12:40 PM1.4 ft | High7:01 PM13.8 ft | 12.6 ft |
| Wed, Aug 5 | 6:09 AM | 10:22 PM | Low1:30 AM1.3 ft | High7:32 AM10.9 ft | Low1:18 PM2.8 ft | High7:44 PM13.7 ft | 12.4 ft |
| Thu, Aug 6 | 6:12 AM | 10:20 PM | Low2:31 AM1.5 ft | High8:41 AM9.9 ft | Low2:07 PM4.1 ft | High8:39 PM13.4 ft | 11.9 ft |
| Fri, Aug 7 | 6:14 AM | 10:17 PM | Low3:50 AM1.5 ft | High10:16 AM9.2 ft | Low3:18 PM5.3 ft | High9:52 PM13.2 ft | 11.7 ft |
| Sat, Aug 8 | 6:16 AM | 10:15 PM | Low5:18 AM1.0 ft | High11:57 AM9.5 ft | Low4:58 PM5.8 ft | High11:16 PM13.4 ft | 12.4 ft |
| Sun, Aug 9 | 6:18 AM | 10:12 PM | Low6:35 AM0.0 ft | High1:15 PM10.5 ft | Low6:28 PM5.3 ft | — | 10.5 ft |
| Mon, Aug 10 | 6:20 AM | 10:10 PM | High12:35 AM14.1 ft | Low7:37 AM-1.2 ft | High2:11 PM11.7 ft | Low7:37 PM4.1 ft | 15.3 ft |
| Tue, Aug 11 | 6:23 AM | 10:07 PM | High1:40 AM15.0 ft | Low8:28 AM-2.2 ft | High2:56 PM12.9 ft | Low8:32 PM2.8 ft | 17.2 ft |
| Wed, Aug 12 | 6:25 AM | 10:05 PM | High2:35 AM15.8 ft | Low9:13 AM-2.9 ft | High3:37 PM13.9 ft | Low9:21 PM1.5 ft | 18.7 ft |
| Thu, Aug 13 | 6:27 AM | 10:02 PM | High3:24 AM16.1 ft | Low9:54 AM-3.0 ft | High4:14 PM14.6 ft | Low10:06 PM0.6 ft | 19.1 ft |
| Fri, Aug 14 | 6:29 AM | 9:59 PM | High4:09 AM15.9 ft | Low10:32 AM-2.6 ft | High4:50 PM14.9 ft | Low10:49 PM0.1 ft | 18.5 ft |
| Sat, Aug 15 | 6:31 AM | 9:57 PM | High4:52 AM15.2 ft | Low11:08 AM-1.7 ft | High5:24 PM15.0 ft | Low11:31 PM0.0 ft | 16.9 ft |
| Sun, Aug 16 | 6:34 AM | 9:54 PM | High5:33 AM14.2 ft | Low11:43 AM-0.4 ft | High5:57 PM14.7 ft | — | 15.1 ft |
| Mon, Aug 17 | 6:36 AM | 9:52 PM | Low12:12 AM0.3 ft | High6:15 AM12.9 ft | Low12:15 PM1.1 ft | High6:30 PM14.1 ft | 13.8 ft |
| Tue, Aug 18 | 6:38 AM | 9:49 PM | Low12:53 AM1.0 ft | High6:57 AM11.5 ft | Low12:46 PM2.7 ft | High7:03 PM13.4 ft | 12.4 ft |
| Wed, Aug 19 | 6:40 AM | 9:46 PM | Low1:39 AM1.9 ft | High7:46 AM10.1 ft | Low1:18 PM4.2 ft | High7:40 PM12.5 ft | 10.6 ft |
| Thu, Aug 20 | 6:43 AM | 9:44 PM | Low2:35 AM2.8 ft | High8:51 AM9.0 ft | Low1:55 PM5.6 ft | High8:29 PM11.7 ft | 8.9 ft |
About Port William, Shuyak Island tides
Tide predictions for Port William, Shuyak Island come from NOAA station 9457313 (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.
Port William, Shuyak 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 Port William, Shuyak Island today?+
Today (Wednesday, July 22), high tide at Port William, Shuyak Island is at 9:48 AM (8.9 ft), 9:43 PM (12.0 ft). Heights are referenced to MLLW (Mean Lower Low Water).
What time is low tide in Port William, Shuyak Island today?+
Today, low tide at Port William, Shuyak Island is at 3:39 AM (2.6 ft), 3:09 PM (4.7 ft).
What tidal datum do these Port William, Shuyak 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.
Port William, Shuyak Island tides, NOAA charts, live wind & waves, and smart routing — all on your phone with Pathr — free for your first two months on iOS.