Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Port Graham, AK.
Next low tide : in 4h 36m at 3:55 pm (4.7 ft)
Next high tide : 10:29 pm (14.8 ft)
Sunset today : 11:28 pm
Sunrise tomorrow : 4:51 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Dec 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:0816.15:5215.011:495.29:374:15Third Quarter1Tue
2Wed7:0215.16:5313.412:132.312:516.19:394:14Third Quarter2Wed
3Thu8:0114.58:0812.31:093.92:046.49:404:13Third Quarter3Thu
4Fri9:0314.39:3012.12:125.03:245.99:424:12Third Quarter4Fri
5Sat9:5914.610:4212.63:195.64:304.89:444:11Waning Crescent5Sat
6Sun10:4715.311:3713.54:205.75:193.59:464:10Waning Crescent6Sun
7Mon11:2716.15:105.45:592.19:474:09Waning Crescent7Mon
8Tue12:2214.512:0417.05:524.96:340.89:494:09Waning Crescent8Tue
9Wed1:0215.512:4017.86:324.47:09-0.49:504:08New Moon9Wed
10Thu1:4116.51:1618.67:103.87:43-1.49:524:07New Moon10Thu
11Fri2:1817.21:5219.17:483.48:18-2.19:534:07New Moon11Fri
12Sat2:5517.62:2919.38:263.18:54-2.49:544:07New Moon12Sat
13Sun3:3317.83:0819.29:053.19:32-2.39:564:06Waxing Crescent13Sun
14Mon4:1117.73:4818.79:463.210:12-1.89:574:06Waxing Crescent14Mon
15Tue4:5217.54:3317.710:313.510:55-0.89:584:06Waxing Crescent15Tue
16Wed5:3717.05:2316.511:224.011:430.49:594:06Waxing Crescent16Wed
17Thu6:2716.76:2415.112:214.310:004:06First Quarter17Thu
18Fri7:2416.47:3814.112:381.81:294.210:014:06First Quarter18Fri
19Sat8:2616.59:0213.71:413.02:453.510:014:07First Quarter19Sat
20Sun9:3117.110:2414.32:523.93:592.210:024:07Waxing Gibbous20Sun
21Mon10:3217.911:3315.44:024.15:040.510:034:07Waxing Gibbous21Mon
22Tue11:2718.95:063.85:59-1.210:034:08Waxing Gibbous22Tue
23Wed12:3216.612:1919.76:033.26:48-2.610:034:08Full Moon23Wed
24Thu1:2317.71:0720.46:532.67:33-3.510:044:09Full Moon24Thu
25Fri2:0918.51:5220.67:402.18:15-3.810:044:10Full Moon25Fri
26Sat2:5318.92:3620.48:241.98:56-3.610:044:11Full Moon26Sat
27Sun3:3418.93:1719.79:072.09:35-2.810:044:12Waning Gibbous27Sun
28Mon4:1318.53:5818.69:502.410:14-1.710:044:13Waning Gibbous28Mon
29Tue4:5217.84:3917.210:333.110:53-0.210:044:14Waning Gibbous29Tue
30Wed5:3116.95:2215.611:174.011:331.510:044:15Waning Gibbous30Wed
31Thu6:1216.06:1113.912:074.810:034:16Third Quarter31Thu
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 7:12 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 transitional phase. Tonight's moon is 69% 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 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 First Quarter (69% illuminated). This places Port Graham, 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