Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Port Graham, AK.
Next low tide (tomorrow) : 4:26 am (3.6 ft)
Next high tide : in 2h 34m at 9:22 pm (14.1 ft)
Sunset today : 10:55 pm
Sunrise tomorrow : 5:31 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Feb 1982

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:0716.46:5512.912:353.18:174:24First Quarter1Mon
2Tue7:0816.18:2712.612:384.91:522.88:144:27First Quarter2Tue
3Wed8:2016.29:5513.41:545.93:121.78:124:30Waxing Gibbous3Wed
4Thu9:3416.811:0514.93:166.04:220.18:104:32Waxing Gibbous4Thu
5Fri10:4018.04:275.15:20-1.68:074:35Waxing Gibbous5Fri
6Sat12:0116.511:39 AM19.25:273.86:09-3.18:054:37Full Moon6Sat
7Sun12:4817.912:3120.16:182.36:54-4.08:024:40Full Moon7Sun
8Mon1:3119.01:1820.67:051.17:35-4.38:004:42Full Moon8Mon
9Tue2:1019.52:0320.57:490.38:14-4.07:574:45Full Moon9Tue
10Wed2:4819.62:4519.88:310.08:52-3.07:554:47Waning Gibbous10Wed
11Thu3:2419.23:2618.59:120.39:29-1.57:524:50Waning Gibbous11Thu
12Fri3:5918.44:0816.89:541.010:070.57:504:52Waning Gibbous12Fri
13Sat4:3417.34:5215.010:382.110:452.67:474:55Third Quarter13Sat
14Sun5:1016.15:4213.111:263.311:274.77:444:58Third Quarter14Sun
15Mon5:5014.86:4811.612:234.47:425:00Third Quarter15Mon
16Tue6:4013.88:2010.912:186.61:375.07:395:03Third Quarter16Tue
17Wed7:4713.19:5811.31:297.93:094.87:365:05Third Quarter17Wed
18Thu9:0713.211:0312.42:588.24:213.77:345:08Waning Crescent18Thu
19Fri10:1514.011:4713.74:137.65:092.47:315:10Waning Crescent19Fri
20Sat11:0715.25:056.45:461.07:285:13Waning Crescent20Sat
21Sun12:2215.011:51 AM16.55:464.96:19-0.47:265:15Waning Crescent21Sun
22Mon12:5316.212:3017.66:233.56:50-1.57:235:18New Moon22Mon
23Tue1:2417.21:0818.56:592.17:22-2.37:205:20New Moon23Tue
24Wed1:5418.11:4519.17:350.97:55-2.77:175:23New Moon24Wed
25Thu2:2418.72:2219.18:110.18:28-2.47:145:25Waxing Crescent25Thu
26Fri2:5519.03:0118.68:48-0.49:03-1.67:125:28Waxing Crescent26Fri
27Sat3:2718.93:4317.69:28-0.49:40-0.27:095:30Waxing Crescent27Sat
28Sun4:0218.54:3016.110:120.110:211.67:065:33Waxing Crescent28Sun
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 12:54 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 transitional phase. Tonight's moon is 63% 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 (63% 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