Tides Today & Tomorrow in Security Cove, AK

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Security Cove, AK.

Next low tide : in 5h 26m at 10:29 am (1.3 ft)
Next high tide : 5:02 pm (10.6 ft)
Sunset today : 8:47 pm
Sunrise tomorrow : 5:07 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9450055
Common Questions About Tides

Security Cove, AK Tides - Aug 2026

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Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Sat	2:27	10.6	3:26	10.1	8:55	-0.9	9:10	1.8	5:02	8:53		1	Sat
2	Sun	3:06	10.1	3:55	10.3	9:25	-0.4	9:51	1.5	5:04	8:51		2	Sun
3	Mon	3:48	9.5	4:26	10.5	9:55	0.4	10:38	1.3	5:05	8:49		3	Mon
4	Tue	4:38	8.8	5:02	10.6	10:29	1.3	11:32	1.2	5:07	8:47		4	Tue
5	Wed	5:38	8.0	5:45	10.7	11:07	2.4			5:09	8:45		5	Wed
6	Thu	6:55	7.4	6:40	10.6	12:38	1.0	11:57 AM	3.4	5:11	8:43		6	Thu
7	Fri	8:33	7.2	7:48	10.7	1:57	0.8	1:09	4.2	5:13	8:41		7	Fri
8	Sat	10:09	7.6	9:04	10.9	3:17	0.2	2:42	4.5	5:14	8:39		8	Sat
9	Sun	11:18	8.3	10:16	11.3	4:26	-0.6	4:07	4.2	5:16	8:36		9	Sun
10	Mon			12:09	9.1	5:23	-1.4	5:14	3.5	5:18	8:34		10	Mon
11	Tue			12:51	9.8	6:13	-2.0	6:10	2.6	5:20	8:32		11	Tue
12	Wed	12:15	12.1	1:30	10.4	6:57	-2.3	7:01	1.8	5:22	8:30		12	Wed
13	Thu	1:05	12.2	2:06	10.8	7:38	-2.2	7:48	1.1	5:24	8:28		13	Thu
14	Fri	1:52	11.9	2:41	11.1	8:16	-1.8	8:33	0.7	5:25	8:26		14	Fri
15	Sat	2:37	11.3	3:16	11.2	8:52	-1.0	9:18	0.5	5:27	8:23		15	Sat
16	Sun	3:23	10.5	3:49	11.0	9:26	0.0	10:02	0.6	5:29	8:21		16	Sun
17	Mon	4:09	9.5	4:23	10.8	9:59	1.1	10:48	0.9	5:31	8:19		17	Mon
18	Tue	4:59	8.6	4:59	10.3	10:33	2.3	11:40	1.3	5:33	8:17		18	Tue
19	Wed	5:59	7.7	5:39	9.8	11:09	3.5			5:35	8:14		19	Wed
20	Thu	7:17	7.1	6:30	9.4	12:43	1.7	11:54 AM	4.4	5:37	8:12		20	Thu
21	Fri	9:03	7.0	7:40	9.1	2:03	1.9	1:10	5.1	5:38	8:10		21	Fri
22	Sat	10:36	7.4	9:00	9.1	3:24	1.7	2:56	5.2	5:40	8:07		22	Sat
23	Sun	11:27	7.9	10:08	9.5	4:27	1.3	4:12	4.9	5:42	8:05		23	Sun
24	Mon			12:01	8.4	5:14	0.7	5:04	4.2	5:44	8:02		24	Mon
25	Tue			12:30	8.9	5:51	0.1	5:45	3.5	5:46	8:00		25	Tue
26	Wed			12:56	9.4	6:24	-0.4	6:22	2.8	5:48	7:58		26	Wed
27	Thu	12:22	10.8	1:21	9.9	6:54	-0.7	6:57	2.1	5:49	7:55		27	Thu
28	Fri	12:59	10.9	1:47	10.4	7:23	-0.7	7:33	1.4	5:51	7:53		28	Fri
29	Sat	1:36	10.9	2:13	10.8	7:52	-0.5	8:09	0.8	5:53	7:50		29	Sat
30	Sun	2:14	10.7	2:40	11.1	8:21	-0.1	8:47	0.3	5:55	7:48		30	Sun
31	Mon	2:54	10.3	3:09	11.4	8:51	0.6	9:27	0.1	5:57	7:45		31	Mon
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (9450055)

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When is the lowest tide this week in Security Cove, AK?

The lowest tide this week in Security Cove, AK is -1.4 ft on Monday, Aug 10 at 5:23 am.

When is the highest tide this week in Security Cove, AK?

The highest tide this week in Security Cove, AK is 11.8 ft on Monday, Aug 10 at 11:19 pm — worth noting for launching your boat and being alert for possible high tide flooding.

What time does the tide turn (slack tide) in Security Cove, AK today?

Slack tide in Security Cove, AK is approximately 1:45 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Security Cove, AK?

Security Cove, AK is currently in a transitional phase. Tonight's moon is 64% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Security Cove, AK tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Security Cove, AK?

Tide predictions for Security Cove, AK come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Security Cove, AK?

Tide data for Security Cove, AK is sourced from NOAA Station #9450055. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9450055.

What time is high tide in Security Cove, AK today?

High tides in Security Cove, AK today: 4:38 am (8.8 ft), 5:02 pm (10.6 ft). The 5:02 pm high of 10.6 ft is notably higher than the other — known as diurnal inequality, common on coasts influenced by lunar declination.

What time is low tide in Security Cove, AK today?

Low tides in Security Cove, AK today: 10:29 am (1.3 ft), 11:32 pm (1.2 ft).

What is the tidal range in Security Cove, AK today?

Today's tidal range in Security Cove, AK is 9.5 ft — the difference between the day's highest and lowest water level. This month's average daily range is about 10.5 ft, so today's swing is below-average.

What is the moon phase in Security Cove, AK tonight?

Tonight the moon over Security Cove, AK is Third Quarter (64% illuminated). This places Security Cove, AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

What type of tides does Security Cove, AK have — semi-diurnal, diurnal, or mixed?

Security Cove, AK has semi-diurnal tides — two high tides and two low tides roughly every 24 hours and 50 minutes, with similar heights.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA

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