Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in Port Graham, AK.
Next low tide : in 50m at 1:09 pm (3.8 ft)
Next high tide : 7:34 pm (16.3 ft)
Sunset today : 10:23 pm
Sunrise tomorrow : 6:02 am
Moon phase : Third Quarter (53% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Jan 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:5615.010:0312.72:276.23:383.99:033:18Waning Crescent1Mon
2Tue9:4716.010:5914.03:296.04:292.19:033:19Waning Crescent2Tue
3Wed10:3417.211:4715.54:245.45:130.29:023:21Waning Crescent3Wed
4Thu11:2018.55:134.65:56-1.59:013:22New Moon4Thu
5Fri12:3216.812:0519.66:003.66:37-3.09:013:24New Moon5Fri
6Sat1:1518.012:5120.56:452.67:19-4.19:003:26New Moon6Sat
7Sun1:5818.81:3621.07:291.98:01-4.68:593:27New Moon7Sun
8Mon2:4019.32:2220.88:151.58:44-4.38:583:29Waxing Crescent8Mon
9Tue3:2319.43:1020.19:021.49:29-3.48:573:31Waxing Crescent9Tue
10Wed4:0819.04:0018.79:521.710:16-1.98:563:33Waxing Crescent10Wed
11Thu4:5618.44:5716.910:472.211:070.18:553:35First Quarter11Thu
12Fri5:4717.76:0215.111:502.88:543:37First Quarter12Fri
13Sat6:4517.07:1913.712:032.11:013.18:523:39First Quarter13Sat
14Sun7:4816.58:4713.31:073.92:192.88:513:41First Quarter14Sun
15Mon8:5516.510:0813.72:205.13:352.08:493:43Waxing Gibbous15Mon
16Tue9:5716.811:1314.63:335.54:370.98:483:46Waxing Gibbous16Tue
17Wed10:5217.34:365.35:27-0.28:463:48Waxing Gibbous17Wed
18Thu12:0415.611:40 AM17.85:274.76:10-1.08:453:50Full Moon18Thu
19Fri12:4716.512:2218.26:124.16:47-1.68:433:52Full Moon19Fri
20Sat1:2517.11:0118.56:513.57:22-1.98:413:55Full Moon20Sat
21Sun1:5917.51:3718.57:293.07:55-1.98:403:57Full Moon21Sun
22Mon2:3117.62:1218.38:052.88:27-1.68:383:59Waning Gibbous22Mon
23Tue3:0217.52:4617.78:402.89:00-0.98:364:02Waning Gibbous23Tue
24Wed3:3317.13:2116.89:163.19:320.18:344:04Waning Gibbous24Wed
25Thu4:0416.63:5815.69:533.610:061.48:324:07Waning Gibbous25Thu
26Fri4:3715.94:3914.310:344.210:422.88:304:09Waning Gibbous26Fri
27Sat5:1215.35:2713.011:204.711:224.38:284:12Third Quarter27Sat
28Sun5:5414.86:3111.812:165.18:264:14Third Quarter28Sun
29Mon6:4514.47:5411.312:145.71:265.08:244:17Third Quarter29Mon
30Tue7:4814.59:2411.91:226.82:444.28:214:19Waning Crescent30Tue
31Wed8:5715.110:3413.22:417.03:532.68:194:22Waning Crescent31Wed
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 4:21 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 neap phase. Tonight's moon is 53% 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 minimum.

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 Third Quarter (53% illuminated). This places Port Graham, AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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