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 5h 24m 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 - Apr 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:2712.33:279.99:02-1.28:562.35:226:28Waning Gibbous1Mon
2Tue3:0711.64:279.09:53-0.69:423.55:196:29Third Quarter2Tue
3Wed3:5310.85:408.310:520.310:394.45:176:31Third Quarter3Wed
4Thu4:499.97:098.012:041.05:146:33Third Quarter4Thu
5Fri6:049.18:378.212:065.01:271.35:126:35Third Quarter5Fri
6Sat7:348.89:388.61:534.92:401.35:096:37Waning Crescent6Sat
7Sun9:538.911:199.14:104.24:351.06:077:39Waning Crescent7Sun
8Mon10:529.211:519.55:013.45:180.86:047:41Waning Crescent8Mon
9Tue11:389.55:412.55:520.76:027:43Waning Crescent9Tue
10Wed12:189.912:189.86:151.76:230.75:597:45New Moon10Wed
11Thu12:4310.312:549.96:461.06:520.85:577:47New Moon11Thu
12Fri1:0710.71:2910.07:170.47:201.15:557:49New Moon12Fri
13Sat1:3210.92:039.97:48-0.17:471.55:527:51New Moon13Sat
14Sun1:5611.12:389.78:20-0.38:152.05:507:53New Moon14Sun
15Mon2:2211.13:169.48:53-0.48:442.65:477:55Waxing Crescent15Mon
16Tue2:5011.03:579.09:29-0.49:153.25:457:56Waxing Crescent16Tue
17Wed3:2110.84:458.510:10-0.19:513.85:437:58Waxing Crescent17Wed
18Thu3:5810.55:458.110:590.210:374.45:408:00First Quarter18Thu
19Fri4:4710.07:017.912:000.55:388:02First Quarter19Fri
20Sat5:549.58:238.11:150.75:358:04First Quarter20Sat
21Sun7:219.29:318.71:274.72:310.55:338:06First Quarter21Sun
22Mon8:519.310:219.53:023.93:360.25:318:08Waxing Gibbous22Mon
23Tue10:079.711:0410.44:112.64:31-0.15:288:10Waxing Gibbous23Tue
24Wed11:1010.311:4311.35:061.25:18-0.35:268:12Waxing Gibbous24Wed
25Thu12:0610.75:55-0.26:02-0.15:248:14Full Moon25Thu
26Fri12:2112.012:5810.96:41-1.46:450.25:228:16Full Moon26Fri
27Sat12:5912.51:4810.97:26-2.17:270.85:198:18Full Moon27Sat
28Sun1:3712.72:3710.68:10-2.58:081.55:178:19Waning Gibbous28Sun
29Mon2:1512.53:2610.28:55-2.38:512.35:158:21Waning Gibbous29Mon
30Tue2:5512.04:189.69:41-1.89:353.15:138:23Waning 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 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