Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in Port Graham, AK.
Next low tide : in 4h 07m at 3:28 am (2.3 ft)
Next high tide : 10:13 am (11.5 ft)
Sunset today : 10:21 pm
Sunrise tomorrow : 6:05 am
Moon phase : Third Quarter (42% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - May 1960

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:5914.85:1013.310:271.510:445.94:068:02Waxing Crescent1Sun
2Mon4:4213.66:0612.411:162.711:426.74:038:04First Quarter2Mon
3Tue5:3912.47:1412.112:153.64:018:06First Quarter3Tue
4Wed6:5511.78:2312.512:566.91:264.03:588:09First Quarter4Wed
5Thu8:1911.89:2013.42:166.22:363.83:568:11First Quarter5Thu
6Fri9:3112.710:0614.83:244.73:353.03:538:13Waxing Gibbous6Fri
7Sat10:2914.010:4716.34:162.74:242.13:518:16Waxing Gibbous7Sat
8Sun11:1915.511:2717.85:000.65:091.13:488:18Waxing Gibbous8Sun
9Mon12:0616.95:42-1.55:520.33:468:21Full Moon9Mon
10Tue12:0619.112:5218.06:24-3.36:35-0.23:438:23Full Moon10Tue
11Wed12:4720.11:3818.77:06-4.67:18-0.33:418:25Full Moon11Wed
12Thu1:2820.62:2418.87:50-5.28:020.03:398:27Waning Gibbous12Thu
13Fri2:1220.53:1218.48:34-5.18:490.73:368:30Waning Gibbous13Fri
14Sat2:5819.84:0217.69:22-4.29:391.73:348:32Waning Gibbous14Sat
15Sun3:4718.54:5816.610:13-2.810:352.83:328:34Waning Gibbous15Sun
16Mon4:4316.86:0015.711:10-1.111:413.83:308:37Third Quarter16Mon
17Tue5:4915.17:0815.112:150.53:288:39Third Quarter17Tue
18Wed7:0813.88:1715.112:564.11:261.73:258:41Third Quarter18Wed
19Thu8:3213.39:2015.52:183.62:382.33:238:43Waning Crescent19Thu
20Fri9:4813.710:1316.23:312.53:422.43:218:45Waning Crescent20Fri
21Sat10:4814.310:5716.84:281.14:342.43:198:47Waning Crescent21Sat
22Sun11:3915.011:3617.25:14-0.15:182.33:178:49Waning Crescent22Sun
23Mon12:2215.65:54-1.15:572.23:168:52New Moon23Mon
24Tue12:1217.61:0116.16:30-1.86:342.23:148:54New Moon24Tue
25Wed12:4617.71:3816.37:05-2.27:102.33:128:56New Moon25Wed
26Thu1:1817.72:1416.37:39-2.37:452.63:108:57New Moon26Thu
27Fri1:5117.42:4916.18:13-2.08:223.03:088:59Waxing Crescent27Fri
28Sat2:2516.93:2615.68:48-1.48:593.73:079:01Waxing Crescent28Sat
29Sun3:0016.14:0414.99:24-0.69:384.43:059:03Waxing Crescent29Sun
30Mon3:3715.24:4614.210:020.310:225.13:049:05Waxing Crescent30Mon
31Tue4:1914.15:3213.610:451.411:145.63:029:07First Quarter31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9455437)

Common Questions About Port Graham, AK Tides

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What time does the tide turn (slack tide) in Port Graham, AK today?

Slack tide in Port Graham, AK is approximately 6:50 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 Port Graham, AK?

Port Graham, AK is currently in a neap phase. Tonight's moon is 42% 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 Port Graham, 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 Port Graham, AK?

Tide predictions for Port Graham, 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 Port Graham, AK?

Tide data for Port Graham, AK is sourced from NOAA Station #9455437. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9455437.

What is the moon phase in Port Graham, AK tonight?

Tonight the moon over Port Graham, AK is Third Quarter (42% illuminated). This places Port Graham, 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