Tides Today & Tomorrow in Port Chatham, AK

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Port Chatham, AK.
Next low tide : 12:49 pm (-0.6 ft)
Next high tide : in 5h 36m at 6:35 am (13.1 ft)
Sunset today : 11:26 pm
Sunrise tomorrow : 4:51 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #9455428
Common Questions About Tides

Port Chatham, AK Tides - Sep 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:4514.94:5316.010:36-0.311:06-1.27:059:08Waxing Crescent1Sun
2Mon5:2914.05:3115.411:161.211:53-0.47:079:05Waxing Crescent2Mon
3Tue6:2112.76:1614.612:012.97:099:02First Quarter3Tue
4Wed7:2511.57:1213.512:490.712:574.67:128:59First Quarter4Wed
5Thu8:4910.78:2812.72:001.82:115.87:148:56First Quarter5Thu
6Fri10:2510.910:0212.53:272.23:426.17:168:53Waxing Gibbous6Fri
7Sat11:4211.811:2613.14:551.65:105.07:188:50Waxing Gibbous7Sat
8Sun12:3813.06:010.56:153.37:218:47Waxing Gibbous8Sun
9Mon12:3014.11:2314.26:51-0.67:061.57:238:44Waxing Gibbous9Mon
10Tue1:2214.92:0115.27:33-1.37:50-0.17:258:41Full Moon10Tue
11Wed2:0815.52:3615.88:11-1.78:29-1.27:278:38Full Moon11Wed
12Thu2:4915.83:0916.18:46-1.59:07-1.87:308:35Full Moon12Thu
13Fri3:2815.73:4016.19:20-1.09:43-1.87:328:32Waning Gibbous13Fri
14Sat4:0515.24:1115.79:530.010:18-1.27:348:29Waning Gibbous14Sat
15Sun4:4114.44:4015.010:261.310:54-0.37:368:27Waning Gibbous15Sun
16Mon5:1813.35:1014.111:002.811:311.07:398:24Waning Gibbous16Mon
17Tue5:5812.15:4313.111:354.47:418:21Third Quarter17Tue
18Wed6:4610.96:2312.012:132.412:165.97:438:18Third Quarter18Wed
19Thu7:509.97:1810.91:053.81:117.27:458:15Third Quarter19Thu
20Fri9:249.48:4210.32:184.72:357.97:488:12Third Quarter20Fri
21Sat10:569.910:1910.53:524.84:167.67:508:09Third Quarter21Sat
22Sun11:5210.811:3011.45:093.95:286.27:528:06Waning Crescent22Sun
23Mon12:3012.05:582.86:154.47:548:03Waning Crescent23Mon
24Tue12:2212.51:0313.26:361.66:542.57:578:00Waning Crescent24Tue
25Wed1:0513.71:3314.47:100.57:310.67:597:57New Moon25Wed
26Thu1:4614.72:0515.57:45-0.38:07-1.08:017:54New Moon26Thu
27Fri2:2615.52:3716.48:20-0.88:44-2.38:047:51New Moon27Fri
28Sat3:0715.93:1116.98:57-0.89:23-3.08:067:48New Moon28Sat
29Sun3:4815.93:4717.19:34-0.310:03-3.18:087:45Waxing Crescent29Sun
30Mon4:3215.44:2516.710:140.710:47-2.58:107:42Waxing Crescent30Mon
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 9:42 am — 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 39% 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 First Quarter (39% 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