Tides Today & Tomorrow in Port Chatham, AK

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Port Chatham, AK.
Next low tide : in 3h 10m at 11:59 am (-2.3 ft)
Next high tide : 6:43 pm (13.9 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 4:50 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #9455428
Common Questions About Tides

Port Chatham, AK Tides - Jan 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:1012.45:5311.311:575.410:014:18First Quarter1Wed
2Thu6:5512.06:5310.312:083.312:565.710:014:20First Quarter2Thu
3Fri7:4511.88:089.712:574.52:045.610:004:21First Quarter3Fri
4Sat8:3811.89:319.71:565.53:154.910:004:23First Quarter4Sat
5Sun9:3112.210:4310.33:016.14:183.79:594:25Waxing Gibbous5Sun
6Mon10:2212.811:4011.24:056.25:082.39:584:26Waxing Gibbous6Mon
7Tue11:0913.65:005.85:520.79:574:28Waxing Gibbous7Tue
8Wed12:2812.211:54 AM14.55:495.26:33-0.79:564:30Waxing Gibbous8Wed
9Thu1:1213.212:3815.46:344.47:13-2.19:554:32Full Moon9Thu
10Fri1:5314.11:2216.17:183.67:53-3.19:544:33Full Moon10Fri
11Sat2:3314.72:0616.58:012.88:34-3.79:534:35Full Moon11Sat
12Sun3:1315.22:5116.68:442.39:15-3.79:524:37Waning Gibbous12Sun
13Mon3:5415.33:3716.29:292.09:57-3.19:514:39Waning Gibbous13Mon
14Tue4:3615.24:2515.410:172.010:42-2.09:494:42Waning Gibbous14Tue
15Wed5:2015.05:1914.111:102.211:30-0.49:484:44Third Quarter15Wed
16Thu6:0814.66:2012.812:092.59:464:46Third Quarter16Thu
17Fri7:0114.17:3411.612:221.41:162.79:454:48Third Quarter17Fri
18Sat8:0013.89:0011.01:223.22:332.69:434:50Third Quarter18Sat
19Sun9:0513.610:2711.22:324.63:521.99:424:53Waning Crescent19Sun
20Mon10:1113.811:3812.03:475.35:000.89:404:55Waning Crescent20Mon
21Tue11:1114.24:565.25:56-0.29:384:57Waning Crescent21Tue
22Wed12:3512.812:0514.65:544.76:42-1.19:365:00Waning Crescent22Wed
23Thu1:2213.612:5215.06:434.17:23-1.79:345:02New Moon23Thu
24Fri2:0214.11:3515.37:263.48:00-2.09:335:04New Moon24Fri
25Sat2:3814.52:1415.48:052.88:34-2.09:315:07New Moon25Sat
26Sun3:1214.62:5015.28:432.59:08-1.79:295:09New Moon26Sun
27Mon3:4414.53:2514.79:192.59:40-1.09:275:12Waxing Crescent27Mon
28Tue4:1514.24:0114.09:562.710:120.09:255:14Waxing Crescent28Tue
29Wed4:4613.84:3713.010:333.010:451.29:225:17Waxing Crescent29Wed
30Thu5:1713.25:1712.011:133.611:192.79:205:19Waxing Crescent30Thu
31Fri5:5012.76:0410.811:584.111:574.29:185:22First Quarter31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9455428)

Common Questions About Port Chatham, AK Tides

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

Slack tide in Port Chatham, AK is approximately 3:21 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 transitional phase. Tonight's moon is 29% 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 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 Waxing Crescent (29% illuminated). This places Port Chatham, 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