Tides Today & Tomorrow in Security Cove, AK

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Security Cove, AK.
Next low tide (tomorrow) : 12:43 am (1.7 ft)
Next high tide : in 24m at 5:39 pm (9.8 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 5:35 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9450055
Common Questions About Tides

Security Cove, AK Tides - Apr 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:539.911:2010.44:471.84:590.75:216:28Waxing Gibbous1Mon
2Tue11:3210.311:4910.95:231.05:320.65:186:30Full Moon2Tue
3Wed12:1110.55:590.36:050.75:166:32Full Moon3Wed
4Thu12:1911.412:5010.66:34-0.46:390.95:136:34Full Moon4Thu
5Fri12:5011.71:3010.57:12-0.87:141.25:116:36Waning Gibbous5Fri
6Sat1:2411.92:1310.37:52-1.07:511.75:086:38Waning Gibbous6Sat
7Sun3:0011.84:009.89:35-0.99:322.36:067:40Waning Gibbous7Sun
8Mon3:4111.54:549.310:23-0.710:192.96:037:42Waning Gibbous8Mon
9Tue4:2911.05:588.911:18-0.211:183.56:017:44Third Quarter9Tue
10Wed5:2810.37:128.712:240.35:587:46Third Quarter10Wed
11Thu6:439.78:298.912:363.81:390.65:567:48Third Quarter11Thu
12Fri8:089.49:369.42:093.62:530.65:537:50Waning Crescent12Fri
13Sat9:309.510:3110.13:302.73:570.55:517:52Waning Crescent13Sat
14Sun10:399.911:1710.84:341.74:500.35:497:53Waning Crescent14Sun
15Mon11:3710.311:5811.45:270.65:370.35:467:55Waning Crescent15Mon
16Tue12:2710.56:13-0.36:200.55:447:57New Moon16Tue
17Wed12:3611.81:1310.66:55-0.97:000.85:417:59New Moon17Wed
18Thu1:1211.91:5610.57:35-1.37:381.25:398:01New Moon18Thu
19Fri1:4611.92:3810.38:14-1.38:151.75:378:03Waxing Crescent19Fri
20Sat2:2111.63:199.98:52-1.18:512.35:348:05Waxing Crescent20Sat
21Sun2:5511.14:019.49:30-0.79:282.95:328:07Waxing Crescent21Sun
22Mon3:3110.64:468.910:10-0.110:083.55:308:09Waxing Crescent22Mon
23Tue4:099.95:378.410:540.510:554.05:278:11First Quarter23Tue
24Wed4:549.26:378.111:441.111:574.35:258:13First Quarter24Wed
25Thu5:528.57:448.012:441.65:238:15First Quarter25Thu
26Fri7:058.08:478.31:204.31:511.95:218:17First Quarter26Fri
27Sat8:267.99:398.72:443.92:541.95:188:18First Quarter27Sat
28Sun9:388.110:219.33:473.13:471.85:168:20Waxing Gibbous28Sun
29Mon10:368.610:589.94:352.14:331.65:148:22Waxing Gibbous29Mon
30Tue11:269.111:3210.65:161.15:141.55:128:24Waxing Gibbous30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9450055)

Common Questions About Security Cove, AK Tides

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

Slack tide in Security Cove, AK is approximately 9:11 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 neap phase. Tonight's moon is 47% 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 near their weekly minimum.

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 is the moon phase in Security Cove, AK tonight?

Tonight the moon over Security Cove, AK is First Quarter (47% illuminated). This places Security Cove, AK in a neap tide cycle, so tidal ranges are near their weekly minimum this week.

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