Tides Today & Tomorrow in Security Cove, AK

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Security Cove, AK.
Next low tide : 9:59 am (1.1 ft)
Next high tide : in 32m at 4:09 am (9.5 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:31 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9450055
Common Questions About Tides

Security Cove, AK Tides - May 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:3611.35:159.010:29-1.010:243.95:118:25Waning Gibbous1Wed
2Thu4:2210.36:218.511:23-0.211:254.55:098:27Third Quarter2Thu
3Fri5:189.47:348.312:250.65:078:29Third Quarter3Fri
4Sat6:298.58:458.312:474.71:361.25:048:31Third Quarter4Sat
5Sun7:548.09:428.62:244.42:451.45:028:33Third Quarter5Sun
6Mon9:158.010:259.13:383.73:411.55:008:35Waning Crescent6Mon
7Tue10:208.210:589.54:302.84:261.54:588:36Waning Crescent7Tue
8Wed11:128.511:2810.05:111.95:041.64:568:38Waning Crescent8Wed
9Thu11:568.811:5510.45:461.05:381.74:558:40Waning Crescent9Thu
10Fri12:359.16:190.26:111.94:538:42New Moon10Fri
11Sat12:2210.81:139.36:52-0.46:432.24:518:44New Moon11Sat
12Sun12:5011.11:519.47:24-0.97:152.54:498:46New Moon12Sun
13Mon1:1911.32:299.47:58-1.27:482.94:478:47New Moon13Mon
14Tue1:4911.33:099.38:35-1.38:223.24:458:49Waxing Crescent14Tue
15Wed2:2211.23:539.09:14-1.39:003.64:448:51Waxing Crescent15Wed
16Thu2:5911.04:438.79:57-1.19:454.04:428:53Waxing Crescent16Thu
17Fri3:4310.55:408.510:46-0.810:404.24:408:54Waxing Crescent17Fri
18Sat4:369.96:448.511:42-0.411:544.34:398:56First Quarter18Sat
19Sun5:459.37:488.812:450.04:378:58First Quarter19Sun
20Mon7:088.88:469.41:243.81:520.34:358:59First Quarter20Mon
21Tue8:348.69:3710.12:482.92:550.54:349:01Waxing Gibbous21Tue
22Wed9:528.810:2310.93:541.53:510.74:339:03Waxing Gibbous22Wed
23Thu11:009.211:0611.64:500.14:431.04:319:04Waxing Gibbous23Thu
24Fri11:599.611:4712.15:40-1.15:311.34:309:06Full Moon24Fri
25Sat12:529.96:26-2.06:171.74:289:07Full Moon25Sat
26Sun12:2812.41:4210.07:11-2.67:032.24:279:09Full Moon26Sun
27Mon1:0812.52:3110.07:55-2.77:472.64:269:10Full Moon27Mon
28Tue1:4912.23:189.88:39-2.58:323.14:259:12Waning Gibbous28Tue
29Wed2:3011.64:079.59:23-2.09:193.54:249:13Waning Gibbous29Wed
30Thu3:1310.94:589.110:08-1.310:083.84:239:14Waning Gibbous30Thu
31Fri3:5910.15:518.810:55-0.511:054.14:219:16Waning Gibbous31Fri
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 7:04 am — 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 28% 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 is the moon phase in Security Cove, AK tonight?

Tonight the moon over Security Cove, AK is Waxing Crescent (28% illuminated). This places Security Cove, AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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