Big Bay, Shuyak Island Tide Chart
Alaska · NOAA Station 9457321 · 58.555°, -152.613°
Want live wind, waves, and radar right on your chart? See it in Pathr →
This Week’s Tides for Big Bay, Shuyak Island
High and low tide times and heights (ft, MLLW) for the week ahead.
| Low | 2:34 AM | 2.0 ft |
| High | 8:40 AM | 10.4 ft |
| Low | 2:29 PM | 3.3 ft |
| High | 8:48 PM | 12.3 ft |
| Low | 3:38 AM | 2.6 ft |
| High | 9:54 AM | 9.4 ft |
| Low | 3:24 PM | 4.7 ft |
| High | 9:40 PM | 11.6 ft |
| Low | 4:55 AM | 2.8 ft |
| High | 11:25 AM | 9.1 ft |
| Low | 4:34 PM | 5.7 ft |
| High | 10:42 PM | 11.3 ft |
| Low | 6:13 AM | 2.5 ft |
| High | 12:49 PM | 9.5 ft |
| Low | 5:54 PM | 6.0 ft |
| High | 11:50 PM | 11.3 ft |
| Low | 7:14 AM | 1.8 ft |
| High | 1:49 PM | 10.3 ft |
| Low | 7:01 PM | 5.7 ft |
| High | 12:51 AM | 11.7 ft |
| Low | 8:00 AM | 1.1 ft |
| High | 2:31 PM | 11.1 ft |
| Low | 7:51 PM | 5.0 ft |
| High | 1:41 AM | 12.4 ft |
| Low | 8:37 AM | 0.2 ft |
| High | 3:07 PM | 11.8 ft |
| Low | 8:33 PM | 4.1 ft |
Big Bay, Shuyak Island Tide Table — Next 30 Days
Every high and low tide for the next month at Big Bay, Shuyak Island, with heights in feet (MLLW), the daily tidal range, and sunrise & sunset.
| Day | Sunrise | Sunset | Tides (time · ft, MLLW) | Range | |||
|---|---|---|---|---|---|---|---|
| Tue, Jul 21Today | 5:38 AM | 10:55 PM | Low2:34 AM2.0 ft | High8:40 AM10.4 ft | Low2:29 PM3.3 ft | High8:48 PM12.3 ft | 10.3 ft |
| Wed, Jul 22 | 5:40 AM | 10:53 PM | Low3:38 AM2.6 ft | High9:54 AM9.4 ft | Low3:24 PM4.7 ft | High9:40 PM11.6 ft | 9.0 ft |
| Thu, Jul 23 | 5:42 AM | 10:51 PM | Low4:55 AM2.8 ft | High11:25 AM9.1 ft | Low4:34 PM5.7 ft | High10:42 PM11.3 ft | 8.5 ft |
| Fri, Jul 24 | 5:44 AM | 10:49 PM | Low6:13 AM2.5 ft | High12:49 PM9.5 ft | Low5:54 PM6.0 ft | High11:50 PM11.3 ft | 8.8 ft |
| Sat, Jul 25 | 5:46 AM | 10:47 PM | Low7:14 AM1.8 ft | High1:49 PM10.3 ft | Low7:01 PM5.7 ft | — | 8.5 ft |
| Sun, Jul 26 | 5:48 AM | 10:45 PM | High12:51 AM11.7 ft | Low8:00 AM1.1 ft | High2:31 PM11.1 ft | Low7:51 PM5.0 ft | 10.6 ft |
| Mon, Jul 27 | 5:50 AM | 10:43 PM | High1:41 AM12.4 ft | Low8:37 AM0.2 ft | High3:07 PM11.8 ft | Low8:33 PM4.1 ft | 12.2 ft |
| Tue, Jul 28 | 5:52 AM | 10:41 PM | High2:24 AM13.1 ft | Low9:10 AM-0.6 ft | High3:38 PM12.5 ft | Low9:10 PM3.3 ft | 13.7 ft |
| Wed, Jul 29 | 5:54 AM | 10:39 PM | High3:03 AM13.7 ft | Low9:41 AM-1.2 ft | High4:08 PM13.1 ft | Low9:46 PM2.5 ft | 14.9 ft |
| Thu, Jul 30 | 5:56 AM | 10:36 PM | High3:40 AM14.2 ft | Low10:12 AM-1.6 ft | High4:37 PM13.6 ft | Low10:21 PM1.8 ft | 15.8 ft |
| Fri, Jul 31 | 5:58 AM | 10:34 PM | High4:15 AM14.4 ft | Low10:42 AM-1.7 ft | High5:06 PM13.9 ft | Low10:56 PM1.3 ft | 16.1 ft |
| Sat, Aug 1 | 6:00 AM | 10:32 PM | High4:51 AM14.2 ft | Low11:13 AM-1.4 ft | High5:34 PM14.1 ft | Low11:32 PM1.1 ft | 15.6 ft |
| Sun, Aug 2 | 6:03 AM | 10:30 PM | High5:28 AM13.8 ft | Low11:45 AM-0.8 ft | High6:03 PM14.1 ft | — | 14.9 ft |
| Mon, Aug 3 | 6:05 AM | 10:27 PM | Low12:10 AM1.0 ft | High6:07 AM13.0 ft | Low12:18 PM0.2 ft | High6:34 PM14.0 ft | 13.8 ft |
| Tue, Aug 4 | 6:07 AM | 10:25 PM | Low12:52 AM1.1 ft | High6:52 AM12.1 ft | Low12:55 PM1.5 ft | High7:09 PM13.7 ft | 12.6 ft |
| Wed, Aug 5 | 6:09 AM | 10:22 PM | Low1:41 AM1.4 ft | High7:46 AM11.0 ft | Low1:38 PM2.9 ft | High7:52 PM13.3 ft | 11.9 ft |
| Thu, Aug 6 | 6:11 AM | 10:20 PM | Low2:41 AM1.7 ft | High8:57 AM10.0 ft | Low2:35 PM4.3 ft | High8:49 PM12.9 ft | 11.2 ft |
| Fri, Aug 7 | 6:14 AM | 10:18 PM | Low3:57 AM1.8 ft | High10:31 AM9.6 ft | Low3:52 PM5.3 ft | High10:03 PM12.7 ft | 10.9 ft |
| Sat, Aug 8 | 6:16 AM | 10:15 PM | Low5:24 AM1.3 ft | High12:08 PM10.2 ft | Low5:24 PM5.4 ft | High11:27 PM13.0 ft | 11.7 ft |
| Sun, Aug 9 | 6:18 AM | 10:13 PM | Low6:41 AM0.2 ft | High1:19 PM11.4 ft | Low6:44 PM4.6 ft | — | 11.2 ft |
| Mon, Aug 10 | 6:20 AM | 10:10 PM | High12:43 AM13.8 ft | Low7:41 AM-1.1 ft | High2:13 PM12.7 ft | Low7:46 PM3.2 ft | 14.9 ft |
| Tue, Aug 11 | 6:22 AM | 10:08 PM | High1:46 AM14.9 ft | Low8:31 AM-2.3 ft | High2:58 PM13.9 ft | Low8:39 PM1.8 ft | 17.2 ft |
| Wed, Aug 12 | 6:25 AM | 10:05 PM | High2:40 AM15.8 ft | Low9:14 AM-3.1 ft | High3:39 PM14.9 ft | Low9:25 PM0.5 ft | 18.9 ft |
| Thu, Aug 13 | 6:27 AM | 10:02 PM | High3:29 AM16.2 ft | Low9:54 AM-3.4 ft | High4:16 PM15.6 ft | Low10:09 PM-0.4 ft | 19.6 ft |
| Fri, Aug 14 | 6:29 AM | 10:00 PM | High4:14 AM16.2 ft | Low10:33 AM-3.1 ft | High4:52 PM15.8 ft | Low10:51 PM-0.9 ft | 19.3 ft |
| Sat, Aug 15 | 6:31 AM | 9:57 PM | High4:56 AM15.7 ft | Low11:09 AM-2.2 ft | High5:26 PM15.7 ft | Low11:32 PM-0.8 ft | 17.9 ft |
| Sun, Aug 16 | 6:34 AM | 9:55 PM | High5:38 AM14.7 ft | Low11:45 AM-0.9 ft | High5:59 PM15.2 ft | — | 16.1 ft |
| Mon, Aug 17 | 6:36 AM | 9:52 PM | Low12:14 AM-0.2 ft | High6:20 AM13.4 ft | Low12:21 PM0.7 ft | High6:32 PM14.3 ft | 14.5 ft |
| Tue, Aug 18 | 6:38 AM | 9:49 PM | Low12:56 AM0.7 ft | High7:05 AM12.0 ft | Low12:58 PM2.5 ft | High7:05 PM13.3 ft | 12.6 ft |
| Wed, Aug 19 | 6:40 AM | 9:47 PM | Low1:43 AM1.8 ft | High7:57 AM10.5 ft | Low1:38 PM4.2 ft | High7:43 PM12.2 ft | 10.4 ft |
About Big Bay, Shuyak Island tides
Tide predictions for Big Bay, Shuyak Island come from NOAA station 9457321 (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.
Big Bay, 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 Big Bay, Shuyak Island today?+
Today (Tuesday, July 21), high tide at Big Bay, Shuyak Island is at 8:40 AM (10.4 ft), 8:48 PM (12.3 ft). Heights are referenced to MLLW (Mean Lower Low Water).
What time is low tide in Big Bay, Shuyak Island today?+
Today, low tide at Big Bay, Shuyak Island is at 2:34 AM (2.0 ft), 2:29 PM (3.3 ft).
What tidal datum do these Big Bay, 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.
Big Bay, 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.