Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Port Graham, AK.
Next low tide : 9:55 pm (0.9 ft)
Next high tide : in 3h 57m at 4:24 pm (18.4 ft)
Sunset today : 11:08 pm
Sunrise tomorrow : 5:18 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Nov 1986

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:1618.11:1420.47:010.87:32-3.08:275:14New Moon1Sat
2Sun1:5918.91:4921.27:400.88:11-4.18:295:12New Moon2Sun
3Mon2:4219.22:2621.58:191.28:53-4.48:325:09New Moon3Mon
4Tue3:2718.83:0621.29:012.19:37-3.98:345:07Waxing Crescent4Tue
5Wed4:1617.93:5020.29:453.310:25-2.68:375:04Waxing Crescent5Wed
6Thu5:1016.74:3918.610:354.711:20-0.88:395:02Waxing Crescent6Thu
7Fri6:1315.45:3816.611:366.18:424:59First Quarter7Fri
8Sat7:2814.56:5614.912:250.912:527.08:444:57First Quarter8Sat
9Sun8:4914.68:3313.91:432.22:256.88:474:55First Quarter9Sun
10Mon10:0015.310:0314.13:062.83:555.38:494:52Waxing Gibbous10Mon
11Tue10:5416.411:1114.94:162.74:593.48:524:50Waxing Gibbous11Tue
12Wed11:3717.35:092.65:471.58:544:48Waxing Gibbous12Wed
13Thu12:0515.712:1318.15:522.56:270.08:564:46Waxing Gibbous13Thu
14Fri12:4916.412:4518.76:292.67:02-1.08:594:44Full Moon14Fri
15Sat1:2916.91:1518.97:042.97:36-1.79:014:42Full Moon15Sat
16Sun2:0617.21:4419.07:373.38:08-1.89:044:40Full Moon16Sun
17Mon2:4217.12:1418.78:113.88:41-1.69:064:38Full Moon17Mon
18Tue3:1716.82:4418.38:444.49:14-1.09:084:36Waning Gibbous18Tue
19Wed3:5316.23:1617.59:195.29:49-0.19:114:34Waning Gibbous19Wed
20Thu4:3215.43:5016.59:556.110:271.09:134:32Waning Gibbous20Thu
21Fri5:1514.44:2815.410:357.111:092.29:154:30Waning Gibbous21Fri
22Sat6:0413.55:1314.111:247.911:593.29:184:28Third Quarter22Sat
23Sun7:0413.06:1412.912:278.49:204:27Third Quarter23Sun
24Mon8:0813.07:3612.112:594.01:468.19:224:25Third Quarter24Mon
25Tue9:0813.79:0312.22:054.53:067.09:244:23Third Quarter25Tue
26Wed9:5714.810:1713.13:114.54:105.19:274:22Waning Crescent26Wed
27Thu10:3916.211:1714.54:084.25:012.89:294:20Waning Crescent27Thu
28Fri11:1917.74:593.75:450.49:314:19Waning Crescent28Fri
29Sat12:0915.911:58 AM19.25:463.26:28-1.79:334:18Waning Crescent29Sat
30Sun12:5817.212:3920.46:322.97:12-3.49:354:16New Moon30Sun
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 7:09 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 3% 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 (3% 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