Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Thursday, June 18, 2026
The tide is currently rising in Port Graham, AK.
Next low tide : 11:49 pm (2.2 ft)
Next high tide : in 49m at 6:14 pm (17.4 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 4:49 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - May 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:4715.88:0914.412:434.11:190.16:0510:03Third Quarter1Sat
2Sun7:5514.59:2014.31:504.72:261.26:0210:05Third Quarter2Sun
3Mon9:1713.810:3014.93:074.63:391.85:5910:08Third Quarter3Mon
4Tue10:4313.911:3116.04:283.54:511.85:5710:10Waning Crescent4Tue
5Wed11:5714.75:381.75:541.45:5410:12Waning Crescent5Wed
6Thu12:2317.212:5915.86:36-0.36:471.05:5210:15Waning Crescent6Thu
7Fri1:1018.31:5216.87:25-2.07:340.75:4910:17New Moon7Fri
8Sat1:5319.12:4017.68:10-3.38:180.55:4710:20New Moon8Sat
9Sun2:3419.63:2417.98:52-4.09:000.75:4510:22New Moon9Sun
10Mon3:1419.54:0717.89:32-4.09:411.15:4210:24New Moon10Mon
11Tue3:5219.14:4817.310:12-3.510:211.95:4010:27Waxing Crescent11Tue
12Wed4:3018.25:2916.510:51-2.611:022.85:3810:29Waxing Crescent12Wed
13Thu5:0917.06:1115.511:31-1.311:453.85:3510:31Waxing Crescent13Thu
14Fri5:4915.66:5614.412:130.25:3310:33Waxing Crescent14Fri
15Sat6:3314.17:4613.512:324.912:591.75:3110:36First Quarter15Sat
16Sun7:2612.78:4212.91:275.71:513.05:2910:38First Quarter16Sun
17Mon8:3211.79:4212.82:326.12:504.05:2610:40First Quarter17Mon
18Tue9:5011.210:3913.23:475.83:554.55:2410:42First Quarter18Tue
19Wed11:0511.511:2814.04:574.84:564.55:2210:44Waxing Gibbous19Wed
20Thu12:0712.45:533.45:494.25:2010:47Waxing Gibbous20Thu
21Fri12:1015.012:5813.56:371.86:363.75:1810:49Waxing Gibbous21Fri
22Sat12:5016.11:4414.77:170.17:183.05:1610:51Waxing Gibbous22Sat
23Sun1:2817.22:2615.77:56-1.48:002.45:1510:53Full Moon23Sun
24Mon2:0718.13:0816.68:34-2.78:412.05:1310:55Full Moon24Mon
25Tue2:4718.93:5017.29:14-3.79:231.65:1110:57Full Moon25Tue
26Wed3:2819.34:3317.59:55-4.210:061.65:0910:59Waning Gibbous26Wed
27Thu4:1119.25:1717.410:37-4.110:511.85:0811:01Waning Gibbous27Thu
28Fri4:5718.76:0417.011:22-3.511:412.25:0611:02Waning Gibbous28Fri
29Sat5:4617.66:5416.512:10-2.45:0511:04Waning Gibbous29Sat
30Sun6:4216.37:4916.112:362.71:03-1.05:0311:06Third Quarter30Sun
31Mon7:4614.88:4915.81:393.12:020.55:0211:08Third Quarter31Mon
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 9:01 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 19% 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 Waxing Crescent (19% 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