Tides Today & Tomorrow in Port Chatham, AK

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Port Chatham, AK.
Next low tide (tomorrow) : 2:34 am (2.9 ft)
Next high tide : in 2h 40m at 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 - Jan 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:4012.56:4910.512:465.210:014:18Third Quarter1Fri
2Sat7:3112.08:039.812:494.41:545.410:014:20Third Quarter2Sat
3Sun8:2711.99:269.81:475.53:095.010:004:21Third Quarter3Sun
4Mon9:2612.110:4010.32:556.14:164.010:004:23Waning Crescent4Mon
5Tue10:2012.611:3611.14:016.15:072.79:594:24Waning Crescent5Tue
6Wed11:0813.34:575.75:501.39:584:26Waning Crescent6Wed
7Thu12:2212.111:52 AM14.15:455.06:280.09:574:28Waning Crescent7Thu
8Fri1:0313.112:3415.06:284.17:05-1.39:564:30New Moon8Fri
9Sat1:4214.01:1515.77:103.27:42-2.39:554:32New Moon9Sat
10Sun2:1914.71:5616.27:502.48:19-3.09:544:33New Moon10Sun
11Mon2:5715.22:3716.48:311.88:58-3.29:534:35Waxing Crescent11Mon
12Tue3:3415.53:2016.19:131.49:37-2.89:524:37Waxing Crescent12Tue
13Wed4:1415.54:0515.59:581.410:19-1.99:514:39Waxing Crescent13Wed
14Thu4:5515.34:5414.510:461.711:04-0.69:494:41Waxing Crescent14Thu
15Fri5:4014.95:5013.211:402.111:541.19:484:44First Quarter15Fri
16Sat6:3114.46:5712.012:432.59:464:46First Quarter16Sat
17Sun7:3013.98:1911.312:522.71:562.69:454:48First Quarter17Sun
18Mon8:3713.79:4811.32:014.13:152.19:434:50Waxing Gibbous18Mon
19Tue9:4813.911:0612.03:184.84:301.19:424:53Waxing Gibbous19Tue
20Wed10:5314.44:314.75:30-0.29:404:55Waxing Gibbous20Wed
21Thu12:0712.911:50 AM15.05:344.06:21-1.39:384:57Waxing Gibbous21Thu
22Fri12:5813.912:4015.66:263.27:05-2.29:365:00Full Moon22Fri
23Sat1:4114.61:2515.97:122.37:44-2.69:355:02Full Moon23Sat
24Sun2:2015.12:0616.07:531.78:21-2.79:335:04Full Moon24Sun
25Mon2:5615.32:4415.88:331.48:56-2.39:315:07Full Moon25Mon
26Tue3:3015.23:2115.29:111.49:30-1.59:295:09Waning Gibbous26Tue
27Wed4:0314.93:5814.49:481.810:04-0.49:275:12Waning Gibbous27Wed
28Thu4:3514.44:3513.410:272.310:380.99:255:14Waning Gibbous28Thu
29Fri5:0713.75:1512.211:073.111:142.49:225:17Waning Gibbous29Fri
30Sat5:4213.06:0111.011:513.911:544.09:205:19Third Quarter30Sat
31Sun6:2212.37:0010.012:454.69:185:22Third Quarter31Sun
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 11:28 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