Tides Today & Tomorrow in Security Cove, AK

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Security Cove, AK.
Next low tide : in 41m at 9:59 am (1.1 ft)
Next high tide : 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 - Nov 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:1810.412:0311.95:562.26:32-0.56:554:14Full Moon1Thu
2Fri12:5610.412:3212.06:282.67:07-0.76:574:12Full Moon2Fri
3Sat1:3510.31:0312.07:013.07:45-0.86:594:10Waning Gibbous3Sat
4Sun2:1710.11:3811.97:373.68:26-0.67:014:08Waning Gibbous4Sun
5Mon3:049.72:1811.58:174.19:13-0.27:034:06Waning Gibbous5Mon
6Tue4:009.43:0610.99:064.610:090.27:054:04Third Quarter6Tue
7Wed5:079.14:0910.210:124.911:150.77:074:02Third Quarter7Wed
8Thu6:209.25:319.611:424.97:094:00Third Quarter8Thu
9Fri7:299.67:029.412:281.01:184.27:113:59Third Quarter9Fri
10Sat8:2710.38:259.61:381.12:323.07:133:57Waning Crescent10Sat
11Sun9:1511.19:3410.12:391.13:301.67:153:55Waning Crescent11Sun
12Mon9:5711.910:3310.53:311.14:200.37:173:53Waning Crescent12Mon
13Tue10:3712.511:2510.94:181.35:05-0.77:193:52New Moon13Tue
14Wed11:1512.95:021.75:48-1.57:213:50New Moon14Wed
15Thu12:1311.011:52 AM13.05:442.16:30-1.87:233:48New Moon15Thu
16Fri1:0011.012:2912.96:252.77:11-1.77:253:47New Moon16Fri
17Sat1:4510.81:0612.57:063.27:51-1.37:273:45Waxing Crescent17Sat
18Sun2:3110.41:4311.87:483.88:33-0.77:293:44Waxing Crescent18Sun
19Mon3:1810.02:2311.18:314.49:170.17:303:42Waxing Crescent19Mon
20Tue4:109.53:0710.29:204.910:050.97:323:41Waxing Crescent20Tue
21Wed5:089.24:009.310:215.210:591.67:343:40First Quarter21Wed
22Thu6:119.15:098.611:415.27:363:38First Quarter22Thu
23Fri7:129.26:338.212:022.11:104.87:383:37First Quarter23Fri
24Sat8:049.57:558.11:052.52:194.07:403:36First Quarter24Sat
25Sun8:459.99:028.42:022.73:093.07:413:35Waxing Gibbous25Sun
26Mon9:2110.49:568.82:502.83:492.07:433:34Waxing Gibbous26Mon
27Tue9:5311.010:439.33:322.94:261.17:453:33Waxing Gibbous27Tue
28Wed10:2511.511:259.74:113.05:010.27:463:32Waxing Gibbous28Wed
29Thu10:5612.04:483.15:36-0.57:483:31Full Moon29Thu
30Fri12:0510.111:30 AM12.45:253.36:13-1.17:503:30Full Moon30Fri
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 1:11 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 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