NOAA station 9450296, Alaska
Custom House Cove, Mary Island tide chart
Saturday, October 31Alaska Daylight Time
NOAA harmonic station (NOAA’s page for this station, opens in a new tab)Rising, about 11.1 ft now
As of 3:47 AM AKDT
- Next
- High 12.7 ft at 5:15 AMin 1h 28m
- Then
- Low 5.3 ft at 10:42 AMin 6h 55m
- Next
High
5:15 AM
12.7 ft
Low
10:42 AM
5.3 ft
High
4:47 PM
15.1 ft
Low
11:47 PM
0.5 ft
The week ahead
This week’s tides at Custom House Cove, Mary Island
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 |
|---|---|---|---|---|
| Sat, Oct 31Range 14.6 ft | 5:15 AM 12.7 ft4:47 PM 15.1 ft | 10:42 AM 5.3 ft11:47 PM 0.5 ft | 14.6 ft | |
| Sun, Nov 1Range 8.0 ft | 5:29 AM 12.3 ft5:02 PM 13.8 ft | 11:00 AM 5.8 ft | 8.0 ft | |
| Mon, Nov 2Range 11.7 ft | 6:50 AM 12.5 ft6:35 PM 13.0 ft | 12:00 AM 1.3 ft12:34 PM 5.6 ft | 11.7 ft | |
| Tue, Nov 3Range 11.7 ft | 8:00 AM 13.4 ft8:03 PM 13.0 ft | 1:14 AM 1.7 ft2:00 PM 4.4 ft | 11.7 ft | |
| Wed, Nov 4Range 12.8 ft | 8:56 AM 14.5 ft9:13 PM 13.5 ft | 2:22 AM 1.7 ft3:09 PM 2.8 ft | 12.8 ft | |
| Thu, Nov 5Range 14.4 ft | 9:43 AM 15.6 ft10:11 PM 14.0 ft | 3:19 AM 1.7 ft4:04 PM 1.2 ft | 14.4 ft | |
| Fri, Nov 6Range 16.6 ft | 10:24 AM 16.5 ft11:00 PM 14.5 ft | 4:07 AM 1.7 ft4:49 PM -0.1 ft | 16.6 ft |
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Custom House Cove, Mary Island tide table for the next 30 days
Every high and low for the next month, with the daily tidal range.
| Day | Highs | Lows | Range |
|---|---|---|---|
| Sat, Oct 31Range 14.6 ft | 5:15 AM 12.7 ft4:47 PM 15.1 ft | 10:42 AM 5.3 ft11:47 PM 0.5 ft | 14.6 ft |
| Sun, Nov 1Range 8.0 ft | 5:29 AM 12.3 ft5:02 PM 13.8 ft | 11:00 AM 5.8 ft | 8.0 ft |
| Mon, Nov 2Range 11.7 ft | 6:50 AM 12.5 ft6:35 PM 13.0 ft | 12:00 AM 1.3 ft12:34 PM 5.6 ft | 11.7 ft |
| Tue, Nov 3Range 11.7 ft | 8:00 AM 13.4 ft8:03 PM 13.0 ft | 1:14 AM 1.7 ft2:00 PM 4.4 ft | 11.7 ft |
| Wed, Nov 4Range 12.8 ft | 8:56 AM 14.5 ft9:13 PM 13.5 ft | 2:22 AM 1.7 ft3:09 PM 2.8 ft | 12.8 ft |
| Thu, Nov 5Range 14.4 ft | 9:43 AM 15.6 ft10:11 PM 14.0 ft | 3:19 AM 1.7 ft4:04 PM 1.2 ft | 14.4 ft |
| Fri, Nov 6Range 16.6 ft | 10:24 AM 16.5 ft11:00 PM 14.5 ft | 4:07 AM 1.7 ft4:49 PM -0.1 ft | 16.6 ft |
| Sat, Nov 7Range 18.0 ft | 11:01 AM 17.0 ft11:44 PM 14.7 ft | 4:50 AM 2.0 ft5:29 PM -1.0 ft | 18.0 ft |
| Sun, Nov 8Range 18.5 ft | 11:35 AM 17.2 ft | 5:28 AM 2.4 ft6:06 PM -1.3 ft | 18.5 ft |
| Mon, Nov 9Range 18.4 ft | 12:25 AM 14.6 ft12:08 PM 17.1 ft | 6:03 AM 2.9 ft6:41 PM -1.3 ft | 18.4 ft |
| Tue, Nov 10Range 17.6 ft | 1:02 AM 14.4 ft12:39 PM 16.7 ft | 6:36 AM 3.6 ft7:14 PM -0.9 ft | 17.6 ft |
| Wed, Nov 11Range 16.6 ft | 1:39 AM 13.9 ft1:10 PM 16.2 ft | 7:07 AM 4.3 ft7:48 PM -0.4 ft | 16.6 ft |
| Thu, Nov 12Range 15.3 ft | 2:15 AM 13.4 ft1:41 PM 15.6 ft | 7:39 AM 4.9 ft8:23 PM 0.3 ft | 15.3 ft |
| Fri, Nov 13Range 13.8 ft | 2:52 AM 12.7 ft2:14 PM 14.8 ft | 8:14 AM 5.5 ft9:02 PM 1.0 ft | 13.8 ft |
Show days 15 to 30Hide days 15 to 30 | |||
| Sat, Nov 14Range 12.3 ft | 3:33 AM 12.1 ft2:52 PM 14.0 ft | 8:54 AM 6.1 ft9:45 PM 1.7 ft | 12.3 ft |
| Sun, Nov 15Range 10.7 ft | 4:22 AM 11.7 ft3:38 PM 13.0 ft | 9:45 AM 6.6 ft10:36 PM 2.3 ft | 10.7 ft |
| Mon, Nov 16Range 9.3 ft | 5:22 AM 11.5 ft4:38 PM 12.1 ft | 10:53 AM 6.7 ft11:34 PM 2.8 ft | 9.3 ft |
| Tue, Nov 17Range 5.4 ft | 6:28 AM 11.8 ft5:59 PM 11.5 ft | 12:13 PM 6.4 ft | 5.4 ft |
| Wed, Nov 18Range 9.5 ft | 7:27 AM 12.6 ft7:23 PM 11.5 ft | 12:36 AM 3.1 ft1:29 PM 5.4 ft | 9.5 ft |
| Thu, Nov 19Range 10.4 ft | 8:17 AM 13.6 ft8:34 PM 12.1 ft | 1:36 AM 3.2 ft2:33 PM 3.9 ft | 10.4 ft |
| Fri, Nov 20Range 12.6 ft | 9:00 AM 14.8 ft9:34 PM 12.9 ft | 2:32 AM 3.1 ft3:26 PM 2.2 ft | 12.6 ft |
| Sat, Nov 21Range 15.4 ft | 9:40 AM 15.9 ft10:26 PM 13.8 ft | 3:22 AM 3.1 ft4:12 PM 0.5 ft | 15.4 ft |
| Sun, Nov 22Range 18.0 ft | 10:19 AM 17.0 ft11:14 PM 14.5 ft | 4:08 AM 3.0 ft4:56 PM -1.0 ft | 18.0 ft |
| Mon, Nov 23Range 20.1 ft | 10:59 AM 17.9 ft | 4:52 AM 3.0 ft5:38 PM -2.2 ft | 20.1 ft |
| Tue, Nov 24Range 21.4 ft | 12:00 AM 14.9 ft11:40 AM 18.5 ft | 5:34 AM 3.1 ft6:21 PM -2.9 ft | 21.4 ft |
| Wed, Nov 25Range 21.8 ft | 12:46 AM 15.1 ft12:22 PM 18.7 ft | 6:17 AM 3.3 ft7:06 PM -3.1 ft | 21.8 ft |
| Thu, Nov 26Range 21.3 ft | 1:33 AM 15.0 ft1:06 PM 18.5 ft | 7:01 AM 3.6 ft7:52 PM -2.8 ft | 21.3 ft |
| Fri, Nov 27Range 19.9 ft | 2:21 AM 14.7 ft1:54 PM 17.8 ft | 7:48 AM 4.0 ft8:41 PM -2.1 ft | 19.9 ft |
| Sat, Nov 28Range 17.8 ft | 3:12 AM 14.2 ft2:45 PM 16.7 ft | 8:42 AM 4.4 ft9:33 PM -1.1 ft | 17.8 ft |
| Sun, Nov 29Range 15.2 ft | 4:07 AM 13.9 ft3:43 PM 15.3 ft | 9:44 AM 4.8 ft10:29 PM 0.1 ft | 15.2 ft |
Conditions at Custom House Cove, Mary Island
From the National Weather Service forecast for this spot and the nearest water temperature reading, with today's sunrise and sunset.
Any date, past or future
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About Custom House Cove, Mary Island tides
Custom House Cove, Mary Island is a NOAA harmonic tide station (9450296): its predictions come from the tidal constituents NOAA derived from water levels measured at this spot. 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, Custom House Cove, Mary Island has two highs and two lows on 26 days and three turns on 4 days, and the daily range runs from 5.4 to 21.8 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.
The latest water temperature near Custom House Cove, Mary Island is about 48°F, from NOAA station 9450460, 23 mi away, at 3:00 AM AKDT. Water temperature shapes where fish hold and feed, and tells you what to wear in the water, so check it alongside the tide before you head out.
Frequently asked
What time is high tide in Custom House Cove, Mary Island today?+
Today (Saturday, October 31), high tide at Custom House Cove, Mary Island is at 5:15 AM (12.7 ft), 4:47 PM (15.1 ft). Heights are referenced to MLLW (Mean Lower Low Water).
What time is low tide in Custom House Cove, Mary Island today?+
Today, low tide at Custom House Cove, Mary Island is at 10:42 AM (5.3 ft), 11:47 PM (0.5 ft).
What tidal datum do these Custom House Cove, Mary 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?+
Custom House Cove, Mary Island is a NOAA harmonic station (9450296), so these are NOAA's harmonic predictions for this spot, which are very accurate for the astronomical tide. Real water levels can still differ with wind, air pressure and river flow, so check conditions before you get underway.
What is the water temperature at Custom House Cove, Mary Island?+
The latest water temperature near Custom House Cove, Mary Island is about 48°F, from NOAA station 9450460, 23 mi away, at 3:00 AM AKDT. Water temperature drives fish behavior and tells you what to wear in the water, so it's worth checking alongside the tide.
Pathr nautical charts
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