Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Wednesday, June 10, 2026
The tide is currently rising in Port Graham, AK.
Next low tide : 4:43 am (2.7 ft)
Next high tide (tomorrow) : in 2h 07m at 10:15 pm (14.9 ft)
Sunset today : 11:20 pm
Sunrise tomorrow : 4:53 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Aug 2026

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:3317.55:1617.310:44-1.911:031.45:5310:33Waning Gibbous1Sat
2Sun5:1016.95:4517.311:16-1.011:411.35:5610:31Waning Gibbous2Sun
3Mon5:4916.06:1617.211:490.35:5810:28Waning Gibbous3Mon
4Tue6:3414.76:5116.812:231.412:262.06:0010:26Third Quarter4Tue
5Wed7:2813.37:3416.31:121.81:093.86:0210:23Third Quarter5Wed
6Thu8:3912.08:3115.82:122.22:065.66:0510:21Third Quarter6Thu
7Fri10:1311.59:4515.53:282.33:236.96:0710:18Waning Crescent7Fri
8Sat11:5012.311:0915.94:551.74:557.16:0910:16Waning Crescent8Sat
9Sun1:0113.86:120.36:156.06:1210:13Waning Crescent9Sun
10Mon12:2517.01:5515.57:12-1.57:174.26:1410:10Waning Crescent10Mon
11Tue1:2818.32:4017.18:02-3.08:102.36:1610:08New Moon11Tue
12Wed2:2219.53:2118.48:45-4.08:560.66:1910:05New Moon12Wed
13Thu3:1120.13:5819.29:25-4.49:40-0.66:2110:02New Moon13Thu
14Fri3:5620.14:3419.610:04-4.010:22-1.16:2310:00Waxing Crescent14Fri
15Sat4:3819.45:0819.410:40-2.911:03-1.06:269:57Waxing Crescent15Sat
16Sun5:2018.15:4118.711:16-1.211:45-0.36:289:54Waxing Crescent16Sun
17Mon6:0216.56:1417.611:520.96:309:51Waxing Crescent17Mon
18Tue6:4714.66:4716.312:270.912:293.26:339:49First Quarter18Tue
19Wed7:3912.77:2514.81:142.31:095.46:359:46First Quarter19Wed
20Thu8:4811.18:1413.52:103.82:007.46:379:43First Quarter20Thu
21Fri10:3310.59:2912.63:294.73:178.76:399:40First Quarter21Fri
22Sat12:1711.25:164.65:038.86:429:37Waxing Gibbous22Sat
23Sun1:1412.36:293.66:227.86:449:35Waxing Gibbous23Sun
24Mon12:1813.61:5013.67:132.27:096.36:469:32Waxing Gibbous24Mon
25Tue1:0914.92:2014.87:460.97:464.76:499:29Waxing Gibbous25Tue
26Wed1:5016.12:4716.08:16-0.38:203.16:519:26Full Moon26Wed
27Thu2:2717.23:1417.18:44-1.38:541.66:539:23Full Moon27Thu
28Fri3:0318.03:4118.09:13-1.89:270.46:569:20Full Moon28Fri
29Sat3:3818.44:0718.69:43-1.910:01-0.56:589:17Full Moon29Sat
30Sun4:1418.44:3519.010:13-1.410:36-0.97:009:14Waning Gibbous30Sun
31Mon4:5217.95:0419.010:45-0.311:13-0.97:029:11Waning Gibbous31Mon
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 1:29 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 35% 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 Third Quarter (35% 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