NOAA station 9450055, Alaska
Security Cove tide chart
Friday, October 30Alaska Daylight Time
Predicted from Sitka (NOAA’s page for this station, opens in a new tab)Rising, about -0.3 ft now
As of 11:32 PM AKDT
- Next
- High 9.3 ft at 5:32 AMtomorrow, in 6h 0m
- Then
- Low 4.7 ft at 10:35 AMtomorrow, in 11h 3m
High, passed
4:27 AM
9.7 ft
Low, passed
9:33 AM
4.2 ft
High, passed
3:36 PM
11.9 ft
Low, passed
10:39 PM
-0.7 ft
The week ahead
This week’s tides at Security Cove
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 12.6 ft | 4:27 AM 9.7 ft3:36 PM 11.9 ft | 9:33 AM 4.2 ft10:39 PM -0.7 ft | 12.6 ft | |
| Sat, Oct 31Range 10.9 ft | 5:32 AM 9.3 ft4:36 PM 11.0 ft | 10:35 AM 4.7 ft11:43 PM 0.1 ft | 10.9 ft | |
| Sun, Nov 1Range 9.4 ft | 5:46 AM 9.2 ft4:52 PM 10.1 ft | 10:58 AM 4.9 ft11:55 PM 0.7 ft | 9.4 ft | |
| Mon, Nov 2Range 4.9 ft | 6:59 AM 9.4 ft6:23 PM 9.4 ft | 12:38 PM 4.5 ft | 4.9 ft | |
| Tue, Nov 3Range 8.8 ft | 8:01 AM 9.9 ft7:51 PM 9.2 ft | 1:07 AM 1.1 ft2:04 PM 3.5 ft | 8.8 ft | |
| Wed, Nov 4Range 9.1 ft | 8:51 AM 10.5 ft9:06 PM 9.3 ft | 2:10 AM 1.4 ft3:07 PM 2.3 ft | 9.1 ft | |
| Thu, Nov 5Range 10.0 ft | 9:32 AM 11.1 ft10:07 PM 9.6 ft | 3:03 AM 1.7 ft3:57 PM 1.1 ft | 10.0 ft |
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Security Cove 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 12.6 ft | 4:27 AM 9.7 ft3:36 PM 11.9 ft | 9:33 AM 4.2 ft10:39 PM -0.7 ft | 12.6 ft |
| Sat, Oct 31Range 10.9 ft | 5:32 AM 9.3 ft4:36 PM 11.0 ft | 10:35 AM 4.7 ft11:43 PM 0.1 ft | 10.9 ft |
| Sun, Nov 1Range 9.4 ft | 5:46 AM 9.2 ft4:52 PM 10.1 ft | 10:58 AM 4.9 ft11:55 PM 0.7 ft | 9.4 ft |
| Mon, Nov 2Range 4.9 ft | 6:59 AM 9.4 ft6:23 PM 9.4 ft | 12:38 PM 4.5 ft | 4.9 ft |
| Tue, Nov 3Range 8.8 ft | 8:01 AM 9.9 ft7:51 PM 9.2 ft | 1:07 AM 1.1 ft2:04 PM 3.5 ft | 8.8 ft |
| Wed, Nov 4Range 9.1 ft | 8:51 AM 10.5 ft9:06 PM 9.3 ft | 2:10 AM 1.4 ft3:07 PM 2.3 ft | 9.1 ft |
| Thu, Nov 5Range 10.0 ft | 9:32 AM 11.1 ft10:07 PM 9.6 ft | 3:03 AM 1.7 ft3:57 PM 1.1 ft | 10.0 ft |
| Fri, Nov 6Range 11.4 ft | 10:08 AM 11.6 ft10:58 PM 9.9 ft | 3:48 AM 2.0 ft4:39 PM 0.2 ft | 11.4 ft |
| Sat, Nov 7Range 12.4 ft | 10:41 AM 11.9 ft11:43 PM 10.1 ft | 4:29 AM 2.5 ft5:18 PM -0.5 ft | 12.4 ft |
| Sun, Nov 8Range 12.9 ft | 11:13 AM 12.1 ft | 5:06 AM 2.9 ft5:53 PM -0.8 ft | 12.9 ft |
| Mon, Nov 9Range 13.0 ft | 12:24 AM 10.2 ft11:43 AM 12.1 ft | 5:42 AM 3.3 ft6:28 PM -0.9 ft | 13.0 ft |
| Tue, Nov 10Range 12.7 ft | 1:03 AM 10.1 ft12:14 PM 11.9 ft | 6:16 AM 3.8 ft7:02 PM -0.8 ft | 12.7 ft |
| Wed, Nov 11Range 12.2 ft | 1:41 AM 10.0 ft12:45 PM 11.7 ft | 6:50 AM 4.1 ft7:37 PM -0.5 ft | 12.2 ft |
| Thu, Nov 12Range 11.3 ft | 2:19 AM 9.7 ft1:18 PM 11.3 ft | 7:25 AM 4.5 ft8:14 PM 0.0 ft | 11.3 ft |
Show days 15 to 30Hide days 15 to 30 | |||
| Fri, Nov 13Range 10.3 ft | 3:01 AM 9.4 ft1:52 PM 10.8 ft | 8:01 AM 4.8 ft8:54 PM 0.5 ft | 10.3 ft |
| Sat, Nov 14Range 9.2 ft | 3:47 AM 9.0 ft2:31 PM 10.2 ft | 8:43 AM 5.1 ft9:37 PM 1.0 ft | 9.2 ft |
| Sun, Nov 15Range 8.0 ft | 4:40 AM 8.7 ft3:17 PM 9.5 ft | 9:34 AM 5.3 ft10:26 PM 1.5 ft | 8.0 ft |
| Mon, Nov 16Range 6.9 ft | 5:38 AM 8.7 ft4:18 PM 8.8 ft | 10:44 AM 5.3 ft11:21 PM 1.9 ft | 6.9 ft |
| Tue, Nov 17Range 3.9 ft | 6:34 AM 8.9 ft5:37 PM 8.3 ft | 12:12 PM 5.0 ft | 3.9 ft |
| Wed, Nov 18Range 7.1 ft | 7:23 AM 9.3 ft7:04 PM 8.1 ft | 12:20 AM 2.2 ft1:31 PM 4.2 ft | 7.1 ft |
| Thu, Nov 19Range 7.4 ft | 8:05 AM 9.9 ft8:21 PM 8.3 ft | 1:18 AM 2.5 ft2:29 PM 3.0 ft | 7.4 ft |
| Fri, Nov 20Range 8.9 ft | 8:43 AM 10.6 ft9:26 PM 8.8 ft | 2:10 AM 2.7 ft3:17 PM 1.7 ft | 8.9 ft |
| Sat, Nov 21Range 11.0 ft | 9:20 AM 11.4 ft10:22 PM 9.4 ft | 2:58 AM 2.9 ft4:01 PM 0.4 ft | 11.0 ft |
| Sun, Nov 22Range 12.9 ft | 9:57 AM 12.2 ft11:13 PM 10.0 ft | 3:43 AM 3.1 ft4:43 PM -0.7 ft | 12.9 ft |
| Mon, Nov 23Range 14.5 ft | 10:37 AM 12.9 ft | 4:28 AM 3.3 ft5:26 PM -1.6 ft | 14.5 ft |
| Tue, Nov 24Range 15.5 ft | 12:01 AM 10.4 ft11:19 AM 13.3 ft | 5:13 AM 3.5 ft6:11 PM -2.2 ft | 15.5 ft |
| Wed, Nov 25Range 15.9 ft | 12:49 AM 10.6 ft12:02 PM 13.5 ft | 5:59 AM 3.6 ft6:57 PM -2.4 ft | 15.9 ft |
| Thu, Nov 26Range 15.7 ft | 1:37 AM 10.7 ft12:49 PM 13.4 ft | 6:47 AM 3.8 ft7:45 PM -2.3 ft | 15.7 ft |
| Fri, Nov 27Range 14.7 ft | 2:28 AM 10.5 ft1:38 PM 12.9 ft | 7:38 AM 3.9 ft8:34 PM -1.8 ft | 14.7 ft |
| Sat, Nov 28Range 13.1 ft | 3:21 AM 10.4 ft2:31 PM 12.0 ft | 8:34 AM 4.1 ft9:26 PM -1.1 ft | 13.1 ft |
Conditions at Security Cove
Today's sunrise and sunset.
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About Security Cove tides
Security Cove is a NOAA subordinate station (9450055): NOAA predicts its times and heights from Sitka (9451600) 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, Security Cove has two highs and two lows on 26 days and three turns on 4 days, and the daily range runs from 3.9 to 15.9 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 Security Cove today?+
Today (Friday, October 30), high tide at Security Cove is at 4:27 AM (9.7 ft), 3:36 PM (11.9 ft). Heights are referenced to MLLW (Mean Lower Low Water).
What time is low tide in Security Cove today?+
Today, low tide at Security Cove is at 9:33 AM (4.2 ft), 10:39 PM (-0.7 ft).
What tidal datum do these Security Cove 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?+
Security Cove is a NOAA subordinate station (9450055). NOAA predicts its times and heights from Sitka (9451600) 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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