Tides Today & Tomorrow in Security Cove, AK

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Security Cove, AK.
Next low tide : in 3h 45m at 10:02 pm (0.6 ft)
Next high tide (tomorrow) : 4:09 am (9.5 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waxing Crescent (20% illuminated)
Tide Station Location : Station #9450055
Common Questions About Tides

Security Cove, AK Tides - May 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:5710.91:479.57:25-0.57:172.25:118:25New Moon1Thu
2Fri1:2211.02:229.47:56-0.87:462.65:098:27New Moon2Fri
3Sat1:4911.02:589.28:28-0.88:163.15:078:29Waxing Crescent3Sat
4Sun2:1610.93:378.99:02-0.78:473.65:058:30Waxing Crescent4Sun
5Mon2:4610.64:208.59:39-0.49:214.05:038:32Waxing Crescent5Mon
6Tue3:1910.35:108.110:21-0.110:014.45:018:34Waxing Crescent6Tue
7Wed3:599.86:127.911:100.310:554.84:598:36First Quarter7Wed
8Thu4:529.37:217.912:100.64:578:38First Quarter8Thu
9Fri6:058.88:258.312:164.81:170.74:558:40First Quarter9Fri
10Sat7:328.59:188.91:534.32:230.74:538:42First Quarter10Sat
11Sun8:578.610:029.83:123.23:220.64:518:43Waxing Gibbous11Sun
12Mon10:109.010:4210.74:121.84:130.64:498:45Waxing Gibbous12Mon
13Tue11:129.511:2211.65:030.35:010.74:488:47Waxing Gibbous13Tue
14Wed12:0910.05:50-1.15:461.04:468:49Full Moon14Wed
15Thu12:0112.31:0210.36:37-2.26:311.44:448:50Full Moon15Thu
16Fri12:4112.81:5310.47:23-2.97:171.94:428:52Full Moon16Fri
17Sat1:2312.92:4410.38:10-3.18:032.44:418:54Waning Gibbous17Sat
18Sun2:0612.73:3710.08:57-2.98:512.94:398:56Waning Gibbous18Sun
19Mon2:5212.14:329.69:47-2.39:433.54:378:57Waning Gibbous19Mon
20Tue3:4111.35:329.210:39-1.510:423.94:368:59Waning Gibbous20Tue
21Wed4:3610.26:368.911:36-0.611:554.14:349:01Third Quarter21Wed
22Thu5:419.27:418.812:380.24:339:02Third Quarter22Thu
23Fri6:588.38:419.01:224.01:420.94:319:04Third Quarter23Fri
24Sat8:217.99:319.32:453.42:431.34:309:05Third Quarter24Sat
25Sun9:387.810:129.63:502.53:361.74:299:07Waning Crescent25Sun
26Mon10:417.910:4610.04:391.64:212.04:279:08Waning Crescent26Mon
27Tue11:338.211:1710.35:190.85:002.44:269:10Waning Crescent27Tue
28Wed12:188.45:550.15:372.74:259:11Waning Crescent28Wed
29Thu12:588.76:29-0.56:123.04:249:13New Moon29Thu
30Fri12:1710.91:368.97:02-0.96:463.24:239:14New Moon30Fri
31Sat12:4711.02:139.07:35-1.27:213.54:229:15New Moon31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9450055)

Common Questions About Security Cove, AK Tides

Show All
What time does the tide turn (slack tide) in Security Cove, AK today?

Slack tide in Security Cove, AK is approximately 1:05 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 spring phase. Tonight's moon is 20% 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 maximum.

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 (20% illuminated). This places Security Cove, AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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