Tides Today & Tomorrow in Security Cove, AK

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Security Cove, AK.
Next low tide : in 5h 19m at 10:02 pm (0.6 ft)
Next high tide (tomorrow) : 4:09 am (9.5 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waxing Crescent (20% illuminated)
Tide Station Location : Station #9450055
Common Questions About Tides

Security Cove, AK Tides - Jul 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:3711.13:159.18:32-1.68:213.64:189:31Waxing Crescent1Tue
2Wed2:1611.03:529.29:09-1.69:043.44:199:31Waxing Crescent2Wed
3Thu2:5710.74:319.39:47-1.59:513.34:209:30Waxing Crescent3Thu
4Fri3:4210.25:129.410:26-1.010:453.04:219:30Waxing Crescent4Fri
5Sat4:349.55:569.611:08-0.411:482.74:229:29First Quarter5Sat
6Sun5:368.76:429.911:540.44:239:28First Quarter6Sun
7Mon6:508.07:3210.312:592.112:461.34:249:28First Quarter7Mon
8Tue8:157.68:2510.82:131.31:462.24:259:27Waxing Gibbous8Tue
9Wed9:417.79:2011.23:230.32:522.94:269:26Waxing Gibbous9Wed
10Thu10:588.210:1611.74:25-0.73:583.24:279:25Waxing Gibbous10Thu
11Fri12:018.85:21-1.65:003.44:299:24Waxing Gibbous11Fri
12Sat12:549.36:12-2.25:583.34:309:23Full Moon12Sat
13Sun12:0312.31:419.77:00-2.66:513.04:319:22Full Moon13Sun
14Mon12:5312.32:269.97:46-2.77:412.84:329:21Full Moon14Mon
15Tue1:4112.13:0810.08:30-2.58:302.64:349:20Waning Gibbous15Tue
16Wed2:2711.63:4910.09:11-2.09:172.54:359:19Waning Gibbous16Wed
17Thu3:1310.84:299.89:51-1.310:062.54:379:17Waning Gibbous17Thu
18Fri3:599.95:099.710:28-0.510:562.54:389:16Waning Gibbous18Fri
19Sat4:479.05:499.511:060.511:522.54:409:15Third Quarter19Sat
20Sun5:418.06:309.411:441.64:419:13Third Quarter20Sun
21Mon6:477.37:139.312:542.412:272.64:439:12Third Quarter21Mon
22Tue8:076.88:019.42:032.21:193.44:449:10Third Quarter22Tue
23Wed9:366.88:539.53:101.72:234.14:469:09Waning Crescent23Wed
24Thu10:537.29:469.74:091.23:304.44:489:07Waning Crescent24Thu
25Fri11:487.710:3610.14:580.64:304.44:499:06Waning Crescent25Fri
26Sat12:308.25:42-0.15:214.24:519:04Waning Crescent26Sat
27Sun1:068.76:22-0.76:053.94:529:02New Moon27Sun
28Mon12:0511.01:409.16:59-1.26:473.54:549:01New Moon28Mon
29Tue12:4611.32:139.47:35-1.67:273.14:568:59New Moon29Tue
30Wed1:2611.42:469.78:11-1.88:082.64:588:57New Moon30Wed
31Thu2:0611.43:1910.08:46-1.88:512.24:598:55Waxing Crescent31Thu
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 1:05 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 spring phase. Tonight's moon is 20% 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 maximum.

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 (20% illuminated). This places Security Cove, AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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