Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Port Graham, AK.
Next low tide : 3:55 pm (4.7 ft)
Next high tide : in 3h 31m at 10:22 am (11.8 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 - Apr 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:0712.811:0112.23:027.34:003.87:308:51Third Quarter1Fri
2Sat10:3813.34:326.65:172.77:278:53Waning Crescent2Sat
3Sun12:0313.711:53 AM14.65:444.96:161.17:248:56Waning Crescent3Sun
4Mon12:5115.512:5216.46:402.57:04-0.47:218:58Waning Crescent4Mon
5Tue1:3317.41:4418.17:280.17:48-1.87:189:01Waning Crescent5Tue
6Wed2:1319.22:3219.48:13-2.28:31-2.67:159:03New Moon6Wed
7Thu2:5320.53:1920.28:56-3.99:13-2.97:129:05New Moon7Thu
8Fri3:3321.34:0520.49:40-4.99:55-2.47:099:08New Moon8Fri
9Sat4:1321.54:5219.810:24-5.110:38-1.47:069:10Waxing Crescent9Sat
10Sun4:5520.85:4118.611:10-4.311:230.27:039:12Waxing Crescent10Sun
11Mon5:3819.56:3316.911:58-2.87:019:15Waxing Crescent11Mon
12Tue6:2617.77:3315.212:132.112:52-0.96:589:17First Quarter12Tue
13Wed7:2315.78:4513.81:104.01:551.06:559:20First Quarter13Wed
14Thu8:3414.010:0813.32:205.53:112.46:529:22First Quarter14Thu
15Fri10:0413.111:2613.73:485.94:372.96:499:24First Quarter15Fri
16Sat11:2913.35:185.25:482.66:469:27Waxing Gibbous16Sat
17Sun12:2414.512:3314.06:223.96:392.16:439:29Waxing Gibbous17Sun
18Mon1:0815.41:2214.87:072.47:191.66:409:31Waxing Gibbous18Mon
19Tue1:4216.12:0115.67:441.17:521.26:389:34Waxing Gibbous19Tue
20Wed2:1316.82:3716.38:160.08:240.96:359:36Full Moon20Wed
21Thu2:4117.43:1116.78:48-0.98:550.96:329:39Full Moon21Thu
22Fri3:0917.83:4416.99:19-1.59:261.06:299:41Full Moon22Fri
23Sat3:3717.94:1816.89:50-1.79:581.56:269:43Full Moon23Sat
24Sun4:0617.84:5316.410:22-1.510:312.26:249:46Waning Gibbous24Sun
25Mon4:3617.35:2915.610:56-1.011:063.26:219:48Waning Gibbous25Mon
26Tue5:0816.66:0814.611:31-0.211:434.26:189:51Waning Gibbous26Tue
27Wed5:4315.76:5413.712:120.76:169:53Waning Gibbous27Wed
28Thu6:2614.67:5112.912:285.31:001.76:139:55Third Quarter28Thu
29Fri7:2313.59:0012.71:256.12:022.56:109:58Third Quarter29Fri
30Sat8:3912.810:1313.22:396.33:152.86:0810:00Third Quarter30Sat
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 1:08 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