Tides Today & Tomorrow in Port Chatham, AK

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Port Chatham, AK.
Next low tide : in 1h 31m at 1:40 pm (1.2 ft)
Next high tide : 8:23 pm (12.9 ft)
Sunset today : 11:26 pm
Sunrise tomorrow : 4:51 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9455428
Common Questions About Tides

Port Chatham, AK Tides - Mar 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:5016.41:5717.27:40-1.88:02-4.08:016:36New Moon1Tue
2Wed2:2917.32:4317.38:24-2.98:43-3.77:586:39New Moon2Wed
3Thu3:0917.63:2916.99:08-3.39:25-2.87:556:41Waxing Crescent3Thu
4Fri3:4817.34:1615.89:53-2.910:07-1.27:526:44Waxing Crescent4Fri
5Sat4:3016.65:0614.410:41-1.910:530.87:496:46Waxing Crescent5Sat
6Sun5:1415.46:0212.811:34-0.311:442.97:466:49First Quarter6Sun
7Mon6:0513.97:1111.312:351.37:436:51First Quarter7Mon
8Tue7:0812.68:4110.512:454.81:512.67:416:53First Quarter8Tue
9Wed8:3111.710:1410.72:056.03:253.07:386:56First Quarter9Wed
10Thu10:0211.611:2211.53:426.04:442.47:356:58Waxing Gibbous10Thu
11Fri11:1112.14:595.15:371.67:327:01Waxing Gibbous11Fri
12Sat12:0912.312:0212.85:503.86:160.87:297:03Waxing Gibbous12Sat
13Sun12:4513.11:4213.57:292.57:490.28:268:05Waxing Gibbous13Sun
14Mon2:1513.82:1714.18:021.48:19-0.38:238:08Full Moon14Mon
15Tue2:4314.32:5014.58:340.48:47-0.58:208:10Full Moon15Tue
16Wed3:1014.73:2314.69:05-0.39:17-0.58:178:12Full Moon16Wed
17Thu3:3614.93:5514.59:36-0.69:46-0.18:148:15Full Moon17Thu
18Fri4:0314.94:2714.110:07-0.610:170.78:118:17Waning Gibbous18Fri
19Sat4:3014.75:0113.510:39-0.210:481.78:088:20Waning Gibbous19Sat
20Sun4:5814.25:3812.611:130.411:212.98:058:22Waning Gibbous20Sun
21Mon5:3013.66:2011.611:511.311:594.18:028:24Waning Gibbous21Mon
22Tue6:0712.97:1410.612:372.27:598:27Third Quarter22Tue
23Wed6:5612.18:2810.012:485.31:393.07:568:29Third Quarter23Wed
24Thu8:0611.49:5810.11:576.22:593.27:548:31Third Quarter24Thu
25Fri9:3611.411:1411.13:266.24:232.67:518:34Third Quarter25Fri
26Sat11:0112.14:505.05:321.37:488:36Waning Crescent26Sat
27Sun12:1112.512:0813.45:563.06:26-0.27:458:38Waning Crescent27Sun
28Mon12:5714.01:0514.86:490.77:13-1.67:428:41Waning Crescent28Mon
29Tue1:4015.51:5515.97:36-1.57:57-2.57:398:43New Moon29Tue
30Wed2:2016.62:4316.68:21-3.28:39-2.87:368:45New Moon30Wed
31Thu3:0117.43:3016.89:05-4.39:21-2.67:338:48New Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9455428)

Common Questions About Port Chatham, AK Tides

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What time does the tide turn (slack tide) in Port Chatham, AK today?

Slack tide in Port Chatham, AK is approximately 5:01 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 Chatham, AK?

Port Chatham, AK is currently in a neap phase. Tonight's moon is 49% 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 Chatham, 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 Chatham, AK?

Tide predictions for Port Chatham, 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 Chatham, AK?

Tide data for Port Chatham, AK is sourced from NOAA Station #9455428. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9455428.

What is the moon phase in Port Chatham, AK tonight?

Tonight the moon over Port Chatham, AK is First Quarter (49% illuminated). This places Port Chatham, 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