Tides Today & Tomorrow in Port Graham, AK

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in Port Graham, AK.
Next low tide : 10:43 pm (0.5 ft)
Next high tide : in 5h 33m at 5:05 pm (18.7 ft)
Sunset today : 11:06 pm
Sunrise tomorrow : 5:19 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9455437
Common Questions About Tides

Port Graham, AK Tides - Jul 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:5318.14:5017.110:12-2.910:242.14:5811:24Waxing Crescent1Sun
2Mon4:3217.55:2516.810:47-2.211:032.34:5911:24Waxing Crescent2Mon
3Tue5:1016.75:5916.411:22-1.211:432.75:0011:23Waxing Crescent3Tue
4Wed5:4915.56:3215.711:580.15:0111:22Waxing Crescent4Wed
5Thu6:3014.27:0815.112:253.212:341.65:0311:21First Quarter5Thu
6Fri7:1612.87:4614.51:103.81:133.15:0411:20First Quarter6Fri
7Sat8:1111.68:3014.02:024.31:584.65:0611:19First Quarter7Sat
8Sun9:2110.89:2313.83:034.52:535.85:0711:17First Quarter8Sun
9Mon10:4410.810:2314.04:144.14:016.55:0911:16Waxing Gibbous9Mon
10Tue12:0011.55:233.25:126.65:1011:15Waxing Gibbous10Tue
11Wed1:0012.76:211.86:155.95:1211:13Waxing Gibbous11Wed
12Thu12:2115.71:4814.17:090.17:084.85:1411:12Waxing Gibbous12Thu
13Fri1:1317.02:3215.57:53-1.57:563.45:1611:10Full Moon13Fri
14Sat2:0218.23:1216.88:34-3.08:422.15:1711:08Full Moon14Sat
15Sun2:4919.23:5218.09:14-4.19:260.95:1911:07Full Moon15Sun
16Mon3:3519.74:3118.89:54-4.610:110.05:2111:05Waning Gibbous16Mon
17Tue4:2119.85:1019.210:35-4.410:56-0.55:2311:03Waning Gibbous17Tue
18Wed5:0819.15:5119.211:17-3.511:44-0.45:2511:01Waning Gibbous18Wed
19Thu5:5717.96:3318.712:01-1.95:2711:00Waning Gibbous19Thu
20Fri6:5116.27:2018.012:360.012:480.15:2910:58Third Quarter20Fri
21Sat7:5214.58:1317.01:340.71:402.25:3110:56Third Quarter21Sat
22Sun9:0713.09:1516.22:411.42:424.15:3310:54Third Quarter22Sun
23Mon10:3512.510:2615.73:571.73:565.45:3510:51Waning Crescent23Mon
24Tue11:5912.911:3915.95:181.35:165.75:3810:49Waning Crescent24Tue
25Wed1:0713.96:270.56:275.25:4010:47Waning Crescent25Wed
26Thu12:4216.41:5915.07:20-0.57:224.35:4210:45Waning Crescent26Thu
27Fri1:3517.02:4115.98:04-1.38:083.25:4410:43New Moon27Fri
28Sat2:2117.63:1716.78:42-1.98:492.35:4610:40New Moon28Sat
29Sun3:0117.93:5017.29:16-2.29:261.65:4910:38New Moon29Sun
30Mon3:3818.04:2117.49:49-2.110:011.25:5110:36New Moon30Mon
31Tue4:1317.74:5017.410:20-1.710:361.25:5310:33Waxing Crescent31Tue
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 7:54 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 8% 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 Waxing Crescent (8% 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