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 : in 4h 21m at 11:09 am (3.5 ft)
Next high tide : 5:39 pm (9.8 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 - May 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:039.09:209.72:093.22:370.65:108:26Waning Crescent1Thu
2Fri9:249.110:1310.53:262.23:400.65:088:27Waning Crescent2Fri
3Sat10:359.511:0111.24:281.04:350.65:068:29Waning Crescent3Sat
4Sun11:3510.011:4411.85:21-0.25:250.65:048:31Waning Crescent4Sun
5Mon12:2810.36:09-1.16:110.85:028:33New Moon5Mon
6Tue12:2512.21:1710.56:54-1.86:551.15:008:35New Moon6Tue
7Wed1:0512.42:0410.57:37-2.17:381.54:588:37New Moon7Wed
8Thu1:4512.22:4910.38:20-2.18:212.04:568:39Waxing Crescent8Thu
9Fri2:2411.83:3510.09:01-1.89:032.54:548:41Waxing Crescent9Fri
10Sat3:0411.24:229.59:44-1.29:473.04:528:42Waxing Crescent10Sat
11Sun3:4510.45:129.110:27-0.510:363.54:508:44Waxing Crescent11Sun
12Mon4:309.66:068.711:140.211:343.94:498:46First Quarter12Mon
13Tue5:238.87:058.512:061.04:478:48First Quarter13Tue
14Wed6:288.18:058.512:464.01:051.54:458:50First Quarter14Wed
15Thu7:447.79:008.82:083.72:081.94:438:51First Quarter15Thu
16Fri9:017.69:469.23:173.13:052.04:428:53Waxing Gibbous16Fri
17Sat10:077.810:259.64:112.33:562.14:408:55Waxing Gibbous17Sat
18Sun11:028.211:0110.14:541.44:402.14:388:56Waxing Gibbous18Sun
19Mon11:488.711:3510.65:320.65:202.14:378:58Waxing Gibbous19Mon
20Tue12:309.16:09-0.25:582.24:359:00Full Moon20Tue
21Wed12:0911.11:119.46:45-0.96:362.24:349:01Full Moon21Wed
22Thu12:4311.41:519.77:22-1.47:152.34:329:03Full Moon22Thu
23Fri1:1911.72:329.88:01-1.87:552.44:319:05Full Moon23Fri
24Sat1:5711.73:159.88:41-1.98:382.64:299:06Waning Gibbous24Sat
25Sun2:3811.54:029.79:23-1.89:242.84:289:08Waning Gibbous25Sun
26Mon3:2311.14:529.610:09-1.510:183.04:279:09Waning Gibbous26Mon
27Tue4:1410.55:479.510:59-1.011:213.04:269:11Third Quarter27Tue
28Wed5:149.76:469.611:54-0.44:249:12Third Quarter28Wed
29Thu6:278.97:469.912:362.912:560.34:239:13Third Quarter29Thu
30Fri7:488.58:4410.31:572.32:010.84:229:15Third Quarter30Fri
31Sat9:118.49:3910.83:111.43:051.34:219:16Waning Crescent31Sat
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 2:24 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 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