Boca de Quadra Tide Chart
Alaska · NOAA Station 9450305 · 55.117°, -130.798°
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This Week’s Tides for Boca de Quadra
High and low tide times and heights (ft, MLLW) for the week ahead.
| Low | 12:37 AM | 2.3 ft |
| High | 6:40 AM | 11.0 ft |
| Low | 12:28 PM | 3.3 ft |
| High | 6:54 PM | 13.5 ft |
| Low | 1:44 AM | 2.6 ft |
| High | 7:54 AM | 10.0 ft |
| Low | 1:23 PM | 4.8 ft |
| High | 7:48 PM | 13.0 ft |
| Low | 2:57 AM | 2.6 ft |
| High | 9:21 AM | 9.6 ft |
| Low | 2:32 PM | 5.8 ft |
| High | 8:52 PM | 12.7 ft |
| Low | 4:08 AM | 2.3 ft |
| High | 10:41 AM | 10.0 ft |
| Low | 3:48 PM | 6.1 ft |
| High | 9:56 PM | 12.9 ft |
| Low | 5:06 AM | 1.6 ft |
| High | 11:41 AM | 10.7 ft |
| Low | 4:52 PM | 5.8 ft |
| High | 10:54 PM | 13.3 ft |
| Low | 5:53 AM | 0.8 ft |
| High | 12:26 PM | 11.5 ft |
| Low | 5:44 PM | 5.2 ft |
| High | 11:43 PM | 14.0 ft |
| Low | 6:33 AM | 0.1 ft |
| High | 1:02 PM | 12.2 ft |
| Low | 6:26 PM | 4.5 ft |
Boca de Quadra Tide Table — Next 30 Days
Every high and low tide for the next month at Boca de Quadra, with heights in feet (MLLW), the daily tidal range, and sunrise & sunset.
| Day | Sunrise | Sunset | Tides (time · ft, MLLW) | Range | |||
|---|---|---|---|---|---|---|---|
| Tue, Jul 21Today | 4:33 AM | 9:06 PM | Low12:37 AM2.3 ft | High6:40 AM11.0 ft | Low12:28 PM3.3 ft | High6:54 PM13.5 ft | 11.2 ft |
| Wed, Jul 22 | 4:34 AM | 9:04 PM | Low1:44 AM2.6 ft | High7:54 AM10.0 ft | Low1:23 PM4.8 ft | High7:48 PM13.0 ft | 10.4 ft |
| Thu, Jul 23 | 4:36 AM | 9:03 PM | Low2:57 AM2.6 ft | High9:21 AM9.6 ft | Low2:32 PM5.8 ft | High8:52 PM12.7 ft | 10.1 ft |
| Fri, Jul 24 | 4:38 AM | 9:01 PM | Low4:08 AM2.3 ft | High10:41 AM10.0 ft | Low3:48 PM6.1 ft | High9:56 PM12.9 ft | 10.6 ft |
| Sat, Jul 25 | 4:39 AM | 8:59 PM | Low5:06 AM1.6 ft | High11:41 AM10.7 ft | Low4:52 PM5.8 ft | High10:54 PM13.3 ft | 11.7 ft |
| Sun, Jul 26 | 4:41 AM | 8:58 PM | Low5:53 AM0.8 ft | High12:26 PM11.5 ft | Low5:44 PM5.2 ft | High11:43 PM14.0 ft | 13.2 ft |
| Mon, Jul 27 | 4:43 AM | 8:56 PM | Low6:33 AM0.1 ft | High1:02 PM12.2 ft | Low6:26 PM4.5 ft | — | 12.1 ft |
| Tue, Jul 28 | 4:44 AM | 8:54 PM | High12:25 AM14.6 ft | Low7:08 AM-0.6 ft | High1:35 PM12.9 ft | Low7:04 PM3.8 ft | 15.2 ft |
| Wed, Jul 29 | 4:46 AM | 8:52 PM | High1:03 AM15.1 ft | Low7:40 AM-1.2 ft | High2:06 PM13.4 ft | Low7:40 PM3.1 ft | 16.3 ft |
| Thu, Jul 30 | 4:48 AM | 8:50 PM | High1:39 AM15.5 ft | Low8:10 AM-1.5 ft | High2:36 PM13.9 ft | Low8:14 PM2.5 ft | 17.0 ft |
| Fri, Jul 31 | 4:50 AM | 8:49 PM | High2:14 AM15.5 ft | Low8:39 AM-1.6 ft | High3:05 PM14.3 ft | Low8:49 PM2.0 ft | 17.1 ft |
| Sat, Aug 1 | 4:51 AM | 8:47 PM | High2:49 AM15.3 ft | Low9:09 AM-1.3 ft | High3:34 PM14.6 ft | Low9:26 PM1.6 ft | 16.6 ft |
| Sun, Aug 2 | 4:53 AM | 8:45 PM | High3:26 AM14.8 ft | Low9:39 AM-0.7 ft | High4:04 PM14.8 ft | Low10:05 PM1.4 ft | 15.5 ft |
| Mon, Aug 3 | 4:55 AM | 8:43 PM | High4:05 AM14.0 ft | Low10:11 AM0.2 ft | High4:36 PM14.8 ft | Low10:50 PM1.4 ft | 14.6 ft |
| Tue, Aug 4 | 4:57 AM | 8:41 PM | High4:50 AM12.9 ft | Low10:47 AM1.5 ft | High5:13 PM14.7 ft | Low11:42 PM1.6 ft | 13.2 ft |
| Wed, Aug 5 | 4:59 AM | 8:39 PM | High5:44 AM11.8 ft | Low11:30 AM2.9 ft | High5:59 PM14.4 ft | — | 11.5 ft |
| Thu, Aug 6 | 5:00 AM | 8:37 PM | Low12:46 AM1.7 ft | High6:54 AM10.7 ft | Low12:24 PM4.2 ft | High6:57 PM14.2 ft | 12.5 ft |
| Fri, Aug 7 | 5:02 AM | 8:35 PM | Low2:03 AM1.6 ft | High8:23 AM10.2 ft | Low1:39 PM5.3 ft | High8:12 PM14.1 ft | 12.5 ft |
| Sat, Aug 8 | 5:04 AM | 8:32 PM | Low3:26 AM1.0 ft | High9:57 AM10.7 ft | Low3:10 PM5.6 ft | High9:33 PM14.5 ft | 13.5 ft |
| Sun, Aug 9 | 5:06 AM | 8:30 PM | Low4:38 AM-0.2 ft | High11:10 AM11.8 ft | Low4:32 PM4.9 ft | High10:46 PM15.4 ft | 15.6 ft |
| Mon, Aug 10 | 5:08 AM | 8:28 PM | Low5:37 AM-1.4 ft | High12:06 PM13.1 ft | Low5:37 PM3.7 ft | High11:47 PM16.4 ft | 17.8 ft |
| Tue, Aug 11 | 5:10 AM | 8:26 PM | Low6:27 AM-2.5 ft | High12:53 PM14.3 ft | Low6:31 PM2.3 ft | — | 16.8 ft |
| Wed, Aug 12 | 5:12 AM | 8:24 PM | High12:40 AM17.1 ft | Low7:11 AM-3.2 ft | High1:34 PM15.3 ft | Low7:19 PM1.1 ft | 20.3 ft |
| Thu, Aug 13 | 5:13 AM | 8:22 PM | High1:28 AM17.5 ft | Low7:52 AM-3.4 ft | High2:13 PM16.0 ft | Low8:04 PM0.3 ft | 20.9 ft |
| Fri, Aug 14 | 5:15 AM | 8:19 PM | High2:13 AM17.2 ft | Low8:30 AM-3.0 ft | High2:50 PM16.4 ft | Low8:47 PM-0.2 ft | 20.2 ft |
| Sat, Aug 15 | 5:17 AM | 8:17 PM | High2:56 AM16.5 ft | Low9:07 AM-2.0 ft | High3:25 PM16.3 ft | Low9:30 PM-0.2 ft | 18.5 ft |
| Sun, Aug 16 | 5:19 AM | 8:15 PM | High3:38 AM15.4 ft | Low9:43 AM-0.7 ft | High4:00 PM15.9 ft | Low10:12 PM0.3 ft | 16.6 ft |
| Mon, Aug 17 | 5:21 AM | 8:12 PM | High4:20 AM14.0 ft | Low10:18 AM1.0 ft | High4:34 PM15.2 ft | Low10:57 PM1.0 ft | 14.2 ft |
| Tue, Aug 18 | 5:23 AM | 8:10 PM | High5:05 AM12.5 ft | Low10:54 AM2.7 ft | High5:10 PM14.3 ft | Low11:46 PM2.0 ft | 12.3 ft |
| Wed, Aug 19 | 5:25 AM | 8:08 PM | High5:58 AM11.0 ft | Low11:34 AM4.4 ft | High5:52 PM13.3 ft | — | 8.9 ft |
About Boca de Quadra tides
Tide predictions for Boca de Quadra come from NOAA station 9450305 (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.
Boca de Quadra 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 Boca de Quadra today?+
Today (Tuesday, July 21), high tide at Boca de Quadra is at 6:40 AM (11.0 ft), 6:54 PM (13.5 ft). Heights are referenced to MLLW (Mean Lower Low Water).
What time is low tide in Boca de Quadra today?+
Today, low tide at Boca de Quadra is at 12:37 AM (2.3 ft), 12:28 PM (3.3 ft).
What tidal datum do these Boca de Quadra 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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