Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Port Graham, AK.
Next low tide : in 3h 52m at 8:10 am (-3.7 ft)
Next high tide : 2:54 pm (16.6 ft)
Sunset today : 11:11 pm
Sunrise tomorrow : 5:14 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Jun 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:0518.64:2416.39:41-3.69:473.45:0111:09Full Moon1Wed
2Thu3:4818.75:0916.310:24-3.710:333.54:5911:10Waning Gibbous2Thu
3Fri4:3418.45:5616.011:09-3.311:213.74:5811:12Waning Gibbous3Fri
4Sat5:2317.56:4615.611:57-2.54:5711:13Waning Gibbous4Sat
5Sun6:1816.47:4015.412:164.012:49-1.44:5611:15Third Quarter5Sun
6Mon7:2115.08:3615.41:184.01:45-0.14:5511:16Third Quarter6Mon
7Tue8:3413.89:3315.62:283.72:461.24:5411:17Third Quarter7Tue
8Wed9:5413.110:3016.13:412.93:492.44:5311:19Third Quarter8Wed
9Thu11:1313.111:2316.74:531.64:533.24:5211:20Waning Crescent9Thu
10Fri12:2313.75:560.15:533.74:5211:21Waning Crescent10Fri
11Sat12:1317.21:2414.56:50-1.26:483.94:5111:22Waning Crescent11Sat
12Sun1:0117.72:1715.27:38-2.27:373.94:5111:23New Moon12Sun
13Mon1:4618.03:0415.78:23-2.88:243.84:5011:24New Moon13Mon
14Tue2:3118.03:4816.09:05-3.09:073.84:5011:25New Moon14Tue
15Wed3:1317.94:2816.09:45-2.89:503.84:5011:25New Moon15Wed
16Thu3:5417.55:0815.810:24-2.310:314.04:4911:26Waxing Crescent16Thu
17Fri4:3416.85:4615.411:02-1.611:134.24:4911:26Waxing Crescent17Fri
18Sat5:1415.96:2514.811:41-0.711:564.64:4911:27Waxing Crescent18Sat
19Sun5:5614.87:0414.312:190.44:4911:27Waxing Crescent19Sun
20Mon6:4013.67:4413.912:425.012:591.64:4911:27First Quarter20Mon
21Tue7:3112.48:2513.61:345.21:422.94:5011:28First Quarter21Tue
22Wed8:3211.49:0913.62:315.12:294.14:5011:28First Quarter22Wed
23Thu9:4410.99:5713.93:344.73:235.24:5011:28First Quarter23Thu
24Fri11:0011.010:4614.44:393.94:245.94:5111:28Waxing Gibbous24Fri
25Sat12:0911.75:382.65:256.14:5211:28Waxing Gibbous25Sat
26Sun1:0812.86:301.26:225.94:5211:27Waxing Gibbous26Sun
27Mon12:2616.11:5914.07:17-0.47:155.34:5311:27Waxing Gibbous27Mon
28Tue1:1517.12:4615.18:02-1.98:044.54:5411:27Full Moon28Tue
29Wed2:0518.13:3116.18:46-3.28:513.64:5511:26Full Moon29Wed
30Thu2:5318.94:1416.99:30-4.29:372.84:5611:26Full Moon30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9455437)

Common Questions About Port Graham, AK Tides

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

Slack tide in Port Graham, AK is approximately 11:32 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 spring phase. Tonight's moon is 1% 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 (1% 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