Tides Today & Tomorrow in Elfin Cove, Port Althorp, AK

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Elfin Cove, Port Althorp, AK.
Next low tide (tomorrow) : 3:49 am (1.9 ft)
Next high tide : in 1h 48m at 8:09 pm (8.9 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:42 am
Moon phase : First Quarter (66% illuminated)
Tide Station Location : Station #9452634
Common Questions About Tides

Elfin Cove, Port Althorp, AK Tides - Aug 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:468.411:0711.95:13-0.94:583.64:589:25Waxing Gibbous1Mon
2Tue12:409.16:08-1.75:593.15:009:22Full Moon2Tue
3Wed12:0412.41:279.86:58-2.36:532.65:029:20Full Moon3Wed
4Thu12:5612.72:1010.37:44-2.67:442.05:049:18Full Moon4Thu
5Fri1:4512.72:5010.68:27-2.68:311.65:069:15Full Moon5Fri
6Sat2:3112.33:3010.79:08-2.29:181.45:099:13Waning Gibbous6Sat
7Sun3:1611.64:0810.69:47-1.510:041.35:119:11Waning Gibbous7Sun
8Mon4:0110.74:4610.410:24-0.610:511.55:139:08Waning Gibbous8Mon
9Tue4:479.55:2510.111:010.511:411.75:159:06Third Quarter9Tue
10Wed5:388.46:069.711:391.75:179:03Third Quarter10Wed
11Thu6:377.46:529.412:362.012:212.95:199:01Third Quarter11Thu
12Fri7:536.87:469.11:412.11:133.95:228:58Third Quarter12Fri
13Sat9:256.68:489.12:542.12:244.65:248:56Third Quarter13Sat
14Sun10:486.99:519.34:051.73:424.95:268:53Waning Crescent14Sun
15Mon11:467.510:489.75:031.24:484.75:288:51Waning Crescent15Mon
16Tue12:278.15:500.55:394.25:308:48Waning Crescent16Tue
17Wed1:018.76:29-0.16:223.75:338:45Waning Crescent17Wed
18Thu12:1910.81:329.27:05-0.77:013.15:358:43New Moon18Thu
19Fri12:5911.22:029.67:39-1.17:382.55:378:40New Moon19Fri
20Sat1:3711.52:3210.08:12-1.38:151.95:398:37New Moon20Sat
21Sun2:1411.53:0310.48:44-1.38:531.45:418:35Waxing Crescent21Sun
22Mon2:5311.23:3510.79:17-1.09:341.05:448:32Waxing Crescent22Mon
23Tue3:3410.74:0810.99:50-0.410:180.85:468:29Waxing Crescent23Tue
24Wed4:2010.04:4510.910:250.511:070.85:488:27Waxing Crescent24Wed
25Thu5:129.05:2810.911:051.65:508:24First Quarter25Thu
26Fri6:168.16:1910.712:050.811:51 AM2.75:528:21First Quarter26Fri
27Sat7:387.57:2310.51:160.912:543.85:548:18First Quarter27Sat
28Sun9:137.48:3910.52:370.82:194.45:578:16Waxing Gibbous28Sun
29Mon10:378.09:5510.83:560.33:484.45:598:13Waxing Gibbous29Mon
30Tue11:398.811:0211.35:03-0.45:013.76:018:10Waxing Gibbous30Tue
31Wed12:279.65:57-1.15:592.96:038:07Waxing Gibbous31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9452634)

Common Questions About Elfin Cove, Port Althorp, AK Tides

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What time does the tide turn (slack tide) in Elfin Cove, Port Althorp, AK today?

Slack tide in Elfin Cove, Port Althorp, AK is approximately 11:59 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 Elfin Cove, Port Althorp, AK?

Elfin Cove, Port Althorp, AK is currently in a transitional phase. Tonight's moon is 66% 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 Elfin Cove, Port Althorp, 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 Elfin Cove, Port Althorp, AK?

Tide predictions for Elfin Cove, Port Althorp, 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 Elfin Cove, Port Althorp, AK?

Tide data for Elfin Cove, Port Althorp, AK is sourced from NOAA Station #9452634. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9452634.

What is the moon phase in Elfin Cove, Port Althorp, AK tonight?

Tonight the moon over Elfin Cove, Port Althorp, AK is First Quarter (66% illuminated). This places Elfin Cove, Port Althorp, 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