Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Port Graham, AK.
Next low tide : 8:17 pm (5.3 ft)
Next high tide : in 6h 06m at 3:03 pm (14.4 ft)
Sunset today : 11:27 pm
Sunrise tomorrow : 4:54 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Jun 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:5216.08:1015.412:453.71:19-0.95:0011:09First Quarter1Wed
2Thu8:0114.49:0915.21:534.02:190.74:5911:11First Quarter2Thu
3Fri9:1713.110:0815.23:083.83:222.14:5811:13First Quarter3Fri
4Sat10:3712.611:0215.44:243.14:253.24:5711:14Waxing Gibbous4Sat
5Sun11:5012.711:5015.75:312.05:244.04:5611:15Waxing Gibbous5Sun
6Mon12:5113.26:250.96:164.44:5511:17Waxing Gibbous6Mon
7Tue12:3316.01:4213.87:10-0.17:024.64:5411:18Waxing Gibbous7Tue
8Wed1:1216.32:2714.47:50-0.87:444.74:5311:19Full Moon8Wed
9Thu1:4916.63:0714.98:27-1.38:244.64:5211:20Full Moon9Thu
10Fri2:2616.73:4415.29:02-1.59:024.54:5211:21Full Moon10Fri
11Sat3:0216.84:2115.39:37-1.69:404.44:5111:22Full Moon11Sat
12Sun3:3916.74:5715.210:12-1.510:184.54:5111:23Waning Gibbous12Sun
13Mon4:1616.45:3414.910:48-1.210:574.74:5011:24Waning Gibbous13Mon
14Tue4:5415.86:1114.511:24-0.611:374.94:5011:25Waning Gibbous14Tue
15Wed5:3315.16:5014.212:020.14:5011:26Waning Gibbous15Wed
16Thu6:1714.17:3014.012:225.112:411.04:5011:26Third Quarter16Thu
17Fri7:0713.18:1214.01:125.21:242.04:4911:27Third Quarter17Fri
18Sat8:0712.28:5814.22:094.92:133.04:4911:27Third Quarter18Sat
19Sun9:1911.79:4714.83:134.23:094.04:5011:27Third Quarter19Sun
20Mon10:3811.810:4015.64:193.04:134.74:5011:28Waning Crescent20Mon
21Tue11:5212.611:3416.65:231.45:184.94:5011:28Waning Crescent21Tue
22Wed12:5713.86:21-0.46:204.74:5011:28Waning Crescent22Wed
23Thu12:2917.71:5515.17:15-2.37:174.14:5111:28Waning Crescent23Thu
24Fri1:2318.82:4916.38:06-3.88:113.34:5111:28New Moon24Fri
25Sat2:1719.73:3817.28:55-4.99:022.54:5211:28New Moon25Sat
26Sun3:1020.24:2617.89:43-5.49:521.94:5311:27New Moon26Sun
27Mon4:0220.15:1218.010:30-5.310:431.64:5311:27Waxing Crescent27Mon
28Tue4:5319.55:5817.911:16-4.411:341.64:5411:26Waxing Crescent28Tue
29Wed5:4518.26:4417.512:03-3.04:5511:26Waxing Crescent29Wed
30Thu6:3816.57:3016.812:291.912:50-1.24:5611:25First Quarter30Thu
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 5:40 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 99% 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 Full Moon (99% 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