Tides Today & Tomorrow in Security Cove, AK

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Security Cove, AK.
Next low tide (tomorrow) : in 5h 58m at 12:43 am (1.7 ft)
Next high tide (tomorrow) : 7:17 am (7.1 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 5:35 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9450055
Common Questions About Tides

Security Cove, AK Tides - Feb 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:1410.811:399.44:134.35:010.47:414:28Waxing Gibbous1Thu
2Fri10:5511.14:563.95:360.07:394:30Full Moon2Fri
3Sat12:109.811:33 AM11.35:343.46:07-0.37:374:32Full Moon3Sat
4Sun12:3910.212:0811.46:093.06:38-0.47:354:34Full Moon4Sun
5Mon1:0710.512:4211.36:442.67:07-0.47:344:36Full Moon5Mon
6Tue1:3510.71:1611.27:182.37:37-0.27:324:38Waning Gibbous6Tue
7Wed2:0310.91:5210.87:532.18:070.27:304:40Waning Gibbous7Wed
8Thu2:3311.02:3010.38:311.98:380.77:284:43Waning Gibbous8Thu
9Fri3:0511.03:139.79:131.99:111.57:264:45Waning Gibbous9Fri
10Sat3:4111.04:059.010:011.99:502.37:244:47Third Quarter10Sat
11Sun4:2410.95:108.311:011.910:383.17:224:49Third Quarter11Sun
12Mon5:1710.86:357.912:141.77:194:51Third Quarter12Mon
13Tue6:2310.88:098.11:351.37:174:53Third Quarter13Tue
14Wed7:3711.09:268.81:124.22:470.57:154:55Waning Crescent14Wed
15Thu8:5011.410:259.62:364.03:48-0.47:134:57Waning Crescent15Thu
16Fri9:5411.911:1310.53:463.34:40-1.17:114:59Waning Crescent16Fri
17Sat10:5112.411:5611.34:442.45:26-1.67:095:01New Moon17Sat
18Sun11:4212.75:361.66:10-1.87:065:03New Moon18Sun
19Mon12:3611.812:3112.66:240.96:51-1.67:045:05New Moon19Mon
20Tue1:1512.21:1712.37:100.47:31-1.17:025:07Waxing Crescent20Tue
21Wed1:5412.32:0311.67:560.28:09-0.37:005:10Waxing Crescent21Wed
22Thu2:3212.12:4910.78:410.48:470.76:575:12Waxing Crescent22Thu
23Fri3:1111.73:389.79:280.79:261.86:555:14Waxing Crescent23Fri
24Sat3:5111.14:338.810:191.310:072.96:535:16First Quarter24Sat
25Sun4:3610.55:408.011:191.810:573.96:505:18First Quarter25Sun
26Mon5:299.97:067.612:312.26:485:20First Quarter26Mon
27Tue6:359.58:407.712:074.61:512.16:465:22First Quarter27Tue
28Wed7:509.49:478.21:394.82:591.86:435:24Waxing Gibbous28Wed
29Thu8:579.610:328.72:574.63:501.36:415:26Waxing Gibbous29Thu
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 4:00 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 neap phase. Tonight's moon is 47% 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 minimum.

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 First Quarter (47% illuminated). This places Security Cove, AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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