Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Port Graham, AK.
Next low tide : in 1h 03m at 7:21 pm (4.3 ft)
Next high tide (tomorrow) : 1:29 am (18.7 ft)
Sunset today : 11:13 pm
Sunrise tomorrow : 5:12 am
Moon phase : New Moon (4% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Jan 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:2614.49:4511.11:516.63:185.110:034:18Third Quarter1Sun
2Mon9:2114.511:0411.82:567.64:274.110:024:20Waning Crescent2Mon
3Tue10:1815.14:077.95:232.710:024:21Waning Crescent3Tue
4Wed12:0512.911:13 AM16.05:107.66:101.210:014:23Waning Crescent4Wed
5Thu12:5414.212:0417.16:046.86:52-0.410:004:25Waning Crescent5Thu
6Fri1:3715.512:5218.36:515.77:33-1.99:594:26New Moon6Fri
7Sat2:1616.71:3819.37:364.58:12-3.19:594:28New Moon7Sat
8Sun2:5417.62:2320.08:193.48:51-3.89:584:30New Moon8Sun
9Mon3:3218.33:0720.19:022.49:31-3.99:564:32Waxing Crescent9Mon
10Tue4:1018.83:5319.79:461.810:11-3.39:554:34Waxing Crescent10Tue
11Wed4:4918.94:4018.610:331.510:52-2.09:544:36Waxing Crescent11Wed
12Thu5:2918.75:3117.011:231.611:36-0.19:534:38First Quarter12Thu
13Fri6:1218.36:3015.212:191.99:514:40First Quarter13Fri
14Sat6:5917.67:4113.512:242.11:222.39:504:42First Quarter14Sat
15Sun7:5416.99:0912.51:204.42:362.59:494:44First Quarter15Sun
16Mon9:0016.410:4412.72:296.23:592.19:474:46Waxing Gibbous16Mon
17Tue10:1316.33:507.15:141.29:454:49Waxing Gibbous17Tue
18Wed12:0113.711:22 AM16.75:097.06:140.19:444:51Waxing Gibbous18Wed
19Thu12:5914.912:2117.36:126.27:02-0.99:424:53Waxing Gibbous19Thu
20Fri1:4416.01:1118.07:035.17:43-1.79:404:56Full Moon20Fri
21Sat2:2316.91:5518.57:464.08:19-2.19:394:58Full Moon21Sat
22Sun2:5717.42:3418.68:253.28:52-2.29:375:00Full Moon22Sun
23Mon3:2817.73:1018.49:012.69:24-1.99:355:03Full Moon23Mon
24Tue3:5817.83:4417.99:372.39:54-1.29:335:05Waning Gibbous24Tue
25Wed4:2617.64:1916.910:122.310:240.09:315:08Waning Gibbous25Wed
26Thu4:5317.24:5415.710:472.710:541.49:295:10Waning Gibbous26Thu
27Fri5:2116.65:3214.311:243.211:253.19:275:13Waning Gibbous27Fri
28Sat5:5015.96:1612.812:053.99:255:15Third Quarter28Sat
29Sun6:2315.27:1311.412:544.69:235:18Third Quarter29Sun
30Mon7:0514.58:3910.512:386.62:005.09:205:20Third Quarter30Mon
31Tue8:0414.010:2910.81:398.13:274.89:185:23Third 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 10:25 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 Port Graham, AK?

Port Graham, AK is currently in a spring phase. Tonight's moon is 4% 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 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 New Moon (4% illuminated). This places Port Graham, 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