NOAA station 9450305, Alaska
Boca de Quadra tide chart
Friday, October 30Alaska Daylight Time
Predicted from Ketchikan (NOAA’s page for this station, opens in a new tab)Falling, about -0.4 ft now
As of 10:16 PM AKDT
- Next
- Low -0.7 ft at 10:51 PMin 35m
- Then
- High 13.0 ft at 5:25 AMtomorrow, in 7h 9m
High, passed
4:23 AM
13.8 ft
Low, passed
9:51 AM
4.3 ft
High, passed
4:01 PM
16.2 ft
- Next
Low
10:51 PM
-0.7 ft
The week ahead
This week’s tides at Boca de Quadra
Every high and low for the next seven days, in feet above MLLW. The 30-day table below has the rest of the month.
| Day | Tide curve | Highs | Lows | Range |
|---|---|---|---|---|
| Fri, Oct 30Range 16.9 ft | 4:23 AM 13.8 ft4:01 PM 16.2 ft | 9:51 AM 4.3 ft10:51 PM -0.7 ft | 16.9 ft | |
| Sat, Oct 31Range 14.4 ft | 5:25 AM 13.0 ft5:01 PM 14.8 ft | 10:51 AM 5.2 ft11:57 PM 0.4 ft | 14.4 ft | |
| Sun, Nov 1Range 7.8 ft | 5:37 AM 12.5 ft5:18 PM 13.6 ft | 11:11 AM 5.8 ft | 7.8 ft | |
| Mon, Nov 2Range 11.5 ft | 6:55 AM 12.7 ft6:48 PM 12.8 ft | 12:11 AM 1.3 ft12:48 PM 5.5 ft | 11.5 ft | |
| Tue, Nov 3Range 11.8 ft | 8:05 AM 13.4 ft8:12 PM 12.9 ft | 1:25 AM 1.6 ft2:14 PM 4.3 ft | 11.8 ft | |
| Wed, Nov 4Range 12.7 ft | 9:00 AM 14.4 ft9:21 PM 13.3 ft | 2:30 AM 1.7 ft3:18 PM 2.7 ft | 12.7 ft | |
| Thu, Nov 5Range 14.1 ft | 9:46 AM 15.3 ft10:17 PM 13.8 ft | 3:24 AM 1.7 ft4:09 PM 1.2 ft | 14.1 ft |
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Boca de Quadra tide table for the next 30 days
Every high and low for the next month, with the daily tidal range.
| Day | Highs | Lows | Range |
|---|---|---|---|
| Fri, Oct 30Range 16.9 ft | 4:23 AM 13.8 ft4:01 PM 16.2 ft | 9:51 AM 4.3 ft10:51 PM -0.7 ft | 16.9 ft |
| Sat, Oct 31Range 14.4 ft | 5:25 AM 13.0 ft5:01 PM 14.8 ft | 10:51 AM 5.2 ft11:57 PM 0.4 ft | 14.4 ft |
| Sun, Nov 1Range 7.8 ft | 5:37 AM 12.5 ft5:18 PM 13.6 ft | 11:11 AM 5.8 ft | 7.8 ft |
| Mon, Nov 2Range 11.5 ft | 6:55 AM 12.7 ft6:48 PM 12.8 ft | 12:11 AM 1.3 ft12:48 PM 5.5 ft | 11.5 ft |
| Tue, Nov 3Range 11.8 ft | 8:05 AM 13.4 ft8:12 PM 12.9 ft | 1:25 AM 1.6 ft2:14 PM 4.3 ft | 11.8 ft |
| Wed, Nov 4Range 12.7 ft | 9:00 AM 14.4 ft9:21 PM 13.3 ft | 2:30 AM 1.7 ft3:18 PM 2.7 ft | 12.7 ft |
| Thu, Nov 5Range 14.1 ft | 9:46 AM 15.3 ft10:17 PM 13.8 ft | 3:24 AM 1.7 ft4:09 PM 1.2 ft | 14.1 ft |
| Fri, Nov 6Range 16.2 ft | 10:25 AM 16.1 ft11:05 PM 14.2 ft | 4:09 AM 1.8 ft4:52 PM -0.1 ft | 16.2 ft |
| Sat, Nov 7Range 17.5 ft | 11:00 AM 16.6 ft11:48 PM 14.4 ft | 4:50 AM 2.1 ft5:30 PM -0.9 ft | 17.5 ft |
| Sun, Nov 8Range 18.2 ft | 11:33 AM 16.8 ft | 5:27 AM 2.5 ft6:06 PM -1.4 ft | 18.2 ft |
| Mon, Nov 9Range 18.2 ft | 12:28 AM 14.5 ft12:05 PM 16.8 ft | 6:02 AM 3.0 ft6:40 PM -1.4 ft | 18.2 ft |
| Tue, Nov 10Range 17.7 ft | 1:05 AM 14.4 ft12:37 PM 16.5 ft | 6:37 AM 3.5 ft7:14 PM -1.2 ft | 17.7 ft |
| Wed, Nov 11Range 16.7 ft | 1:42 AM 14.0 ft1:09 PM 16.1 ft | 7:11 AM 4.1 ft7:49 PM -0.6 ft | 16.7 ft |
| Thu, Nov 12Range 15.3 ft | 2:19 AM 13.5 ft1:43 PM 15.4 ft | 7:45 AM 4.7 ft8:25 PM 0.1 ft | 15.3 ft |
Show days 15 to 30Hide days 15 to 30 | |||
| Fri, Nov 13Range 13.8 ft | 2:57 AM 12.9 ft2:18 PM 14.7 ft | 8:21 AM 5.3 ft9:04 PM 0.9 ft | 13.8 ft |
| Sat, Nov 14Range 12.0 ft | 3:40 AM 12.2 ft2:58 PM 13.8 ft | 9:02 AM 5.9 ft9:47 PM 1.8 ft | 12.0 ft |
| Sun, Nov 15Range 10.3 ft | 4:30 AM 11.7 ft3:46 PM 12.8 ft | 9:53 AM 6.5 ft10:38 PM 2.5 ft | 10.3 ft |
| Mon, Nov 16Range 8.8 ft | 5:28 AM 11.4 ft4:46 PM 11.9 ft | 11:00 AM 6.7 ft11:36 PM 3.1 ft | 8.8 ft |
| Tue, Nov 17Range 5.2 ft | 6:31 AM 11.6 ft6:02 PM 11.3 ft | 12:23 PM 6.4 ft | 5.2 ft |
| Wed, Nov 18Range 8.9 ft | 7:29 AM 12.3 ft7:21 PM 11.3 ft | 12:39 AM 3.4 ft1:39 PM 5.4 ft | 8.9 ft |
| Thu, Nov 19Range 9.8 ft | 8:18 AM 13.2 ft8:32 PM 11.8 ft | 1:39 AM 3.4 ft2:40 PM 3.9 ft | 9.8 ft |
| Fri, Nov 20Range 12.2 ft | 9:00 AM 14.4 ft9:32 PM 12.6 ft | 2:33 AM 3.3 ft3:30 PM 2.2 ft | 12.2 ft |
| Sat, Nov 21Range 15.2 ft | 9:40 AM 15.6 ft10:25 PM 13.5 ft | 3:21 AM 3.2 ft4:15 PM 0.4 ft | 15.2 ft |
| Sun, Nov 22Range 17.9 ft | 10:20 AM 16.7 ft11:14 PM 14.3 ft | 4:07 AM 3.0 ft4:58 PM -1.2 ft | 17.9 ft |
| Mon, Nov 23Range 20.2 ft | 11:01 AM 17.7 ft | 4:51 AM 2.9 ft5:41 PM -2.5 ft | 20.2 ft |
| Tue, Nov 24Range 21.6 ft | 12:02 AM 14.9 ft11:44 AM 18.3 ft | 5:35 AM 2.9 ft6:25 PM -3.3 ft | 21.6 ft |
| Wed, Nov 25Range 22.1 ft | 12:49 AM 15.2 ft12:28 PM 18.6 ft | 6:20 AM 2.9 ft7:10 PM -3.5 ft | 22.1 ft |
| Thu, Nov 26Range 21.7 ft | 1:37 AM 15.3 ft1:15 PM 18.4 ft | 7:06 AM 3.1 ft7:57 PM -3.3 ft | 21.7 ft |
| Fri, Nov 27Range 20.3 ft | 2:26 AM 15.1 ft2:04 PM 17.7 ft | 7:56 AM 3.5 ft8:47 PM -2.6 ft | 20.3 ft |
| Sat, Nov 28Range 18.1 ft | 3:18 AM 14.7 ft2:57 PM 16.6 ft | 8:50 AM 3.9 ft9:40 PM -1.5 ft | 18.1 ft |
Conditions at Boca de Quadra
From the National Weather Service forecast for this spot, with today's sunrise and sunset.
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About Boca de Quadra tides
Boca de Quadra is a NOAA subordinate station (9450305): NOAA predicts its times and heights from Ketchikan (9450460) with offsets for this spot, so treat them as a close guide rather than an exact prediction. Heights are in feet above MLLW (Mean Lower Low Water), the datum of US nautical charts, so they line up with charted depths.
In the next 30 days, Boca de Quadra has two highs and two lows on 26 days and three turns on 4 days, and the daily range runs from 5.2 to 22.1 ft. That is a mixed tide: two highs and two lows on most days, of clearly different heights.
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, air pressure and river flow can push the real water level above or below the prediction. The daily tidal range in the tables 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 (Friday, October 30), high tide at Boca de Quadra is at 4:23 AM (13.8 ft), 4:01 PM (16.2 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 9:51 AM (4.3 ft), 10:51 PM (-0.7 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?+
Boca de Quadra is a NOAA subordinate station (9450305). NOAA predicts its times and heights from Ketchikan (9450460) with offsets for this spot, so treat them as a close guide rather than an exact prediction. Real water levels can also differ with wind, air pressure and river flow.
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