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 24m 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 - May 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:4610.910:5612.03:415.14:092.36:0510:02Third Quarter1Sun
2Mon11:0411.711:4813.34:543.55:141.56:0310:04Waning Crescent2Mon
3Tue12:0912.95:531.36:090.56:0010:06Waning Crescent3Tue
4Wed12:3514.61:0514.16:44-0.96:58-0.45:5810:09Waning Crescent4Wed
5Thu1:1915.81:5715.17:32-2.97:45-1.05:5510:11New Moon5Thu
6Fri2:0216.82:4615.88:17-4.48:30-1.15:5310:13New Moon6Fri
7Sat2:4617.33:3416.09:02-5.29:15-0.95:5010:16New Moon7Sat
8Sun3:2917.34:2215.79:47-5.210:00-0.25:4810:18Waxing Crescent8Sun
9Mon4:1316.75:1015.010:33-4.410:470.95:4510:20Waxing Crescent9Mon
10Tue4:5915.76:0114.111:21-3.111:382.25:4310:23Waxing Crescent10Tue
11Wed5:4814.36:5713.012:12-1.45:4110:25First Quarter11Wed
12Thu6:4312.87:5912.112:343.51:090.45:3810:27First Quarter12Thu
13Fri7:4811.49:0811.61:404.52:131.95:3610:29First Quarter13Fri
14Sat9:0710.510:1611.62:584.93:252.95:3410:32First Quarter14Sat
15Sun10:3010.311:1411.94:224.44:343.25:3210:34Waxing Gibbous15Sun
16Mon11:3910.65:283.45:313.25:2910:36Waxing Gibbous16Mon
17Tue12:0012.312:3211.26:172.26:163.05:2710:38Waxing Gibbous17Tue
18Wed12:3712.91:1511.86:551.16:552.75:2510:41Waxing Gibbous18Wed
19Thu1:1113.41:5412.57:300.07:302.45:2310:43Waxing Gibbous19Thu
20Fri1:4213.92:3113.08:03-0.88:052.25:2110:45Full Moon20Fri
21Sat2:1414.33:0713.38:35-1.58:402.25:1910:47Full Moon21Sat
22Sun2:4614.53:4313.59:08-1.99:152.35:1710:49Full Moon22Sun
23Mon3:1914.54:1913.49:42-2.09:512.55:1610:51Full Moon23Mon
24Tue3:5314.44:5613.110:17-1.810:293.05:1410:53Waning Gibbous24Tue
25Wed4:2913.95:3612.710:55-1.311:093.65:1210:55Waning Gibbous25Wed
26Thu5:0813.36:2012.311:35-0.611:564.15:1010:57Waning Gibbous26Thu
27Fri5:5312.67:1011.912:220.25:0910:59Third Quarter27Fri
28Sat6:4911.88:0711.812:514.51:161.15:0711:01Third Quarter28Sat
29Sun7:5811.19:0912.11:574.52:181.85:0611:02Third Quarter29Sun
30Mon9:1810.910:1012.73:103.83:262.15:0411:04Third Quarter30Mon
31Tue10:3811.311:0713.64:232.54:342.15:0311:06Waning Crescent31Tue
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