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 : 10:48 pm (0.9 ft)
Next high tide : in 4h 59m at 4:23 pm (10.8 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 - Sep 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:0610.61:089.76:39-0.26:412.65:597:43Full Moon1Sat
2Sun12:4210.81:3510.07:10-0.37:142.16:017:40Full Moon2Sun
3Mon1:1610.82:0210.27:39-0.37:471.76:027:38Full Moon3Mon
4Tue1:5010.72:2710.38:07-0.18:191.46:047:35Full Moon4Tue
5Wed2:2410.52:5410.48:350.38:531.26:067:33Waning Gibbous5Wed
6Thu2:5810.13:2010.49:020.99:281.26:087:30Waning Gibbous6Thu
7Fri3:369.63:4910.49:311.610:071.26:107:28Waning Gibbous7Fri
8Sat4:199.04:2210.310:022.410:541.36:127:25Waning Gibbous8Sat
9Sun5:118.45:0210.110:383.211:521.56:137:23Third Quarter9Sun
10Mon6:207.85:5610.011:274.06:157:20Third Quarter10Mon
11Tue7:517.67:089.91:061.512:424.66:177:18Third Quarter11Tue
12Wed9:228.08:3110.12:291.12:204.76:197:15Waning Crescent12Wed
13Thu10:308.79:4710.73:410.43:444.16:217:13Waning Crescent13Thu
14Fri11:209.510:5111.44:40-0.44:473.16:237:10Waning Crescent14Fri
15Sat12:0210.45:30-1.15:411.96:247:07Waning Crescent15Sat
16Sun12:4211.26:15-1.56:300.96:267:05New Moon16Sun
17Mon12:3812.31:2011.86:58-1.57:170.06:287:02New Moon17Mon
18Tue1:2812.31:5712.27:39-1.28:03-0.66:307:00New Moon18Tue
19Wed2:1612.02:3512.38:19-0.58:49-0.96:326:57Waxing Crescent19Wed
20Thu3:0511.43:1312.18:590.49:36-0.76:346:55Waxing Crescent20Thu
21Fri3:5510.53:5311.79:391.510:25-0.26:366:52Waxing Crescent21Fri
22Sat4:519.64:3511.010:222.711:190.56:376:50First Quarter22Sat
23Sun5:558.85:2510.211:113.86:396:47First Quarter23Sun
24Mon7:158.26:289.512:241.212:184.76:416:44First Quarter24Mon
25Tue8:468.27:499.11:431.61:545.16:436:42First Quarter25Tue
26Wed10:038.59:119.13:031.73:254.86:456:39Waxing Gibbous26Wed
27Thu10:558.910:179.44:061.44:274.16:476:37Waxing Gibbous27Thu
28Fri11:319.411:079.84:541.15:113.46:496:34Waxing Gibbous28Fri
29Sat12:019.85:320.85:472.66:506:32Waxing Gibbous29Sat
30Sun12:2810.26:050.76:201.96:526:29Full Moon30Sun
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 7:35 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 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