Tides Today & Tomorrow in Chiachi Island (East Side), AK

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 10:08 am (-1.2 ft)
Next high tide : in 4h 42m at 3:08 am (8.1 ft)
Sunset today : 10:48 pm
Sunrise tomorrow : 6:36 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jan 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:357.83:158.69:261.99:59-1.69:064:13Waning Gibbous1Wed
2Thu4:187.94:077.810:211.910:42-0.69:064:14Waning Gibbous2Thu
3Fri5:057.95:046.811:222.011:280.69:054:16Third Quarter3Fri
4Sat5:557.96:125.912:322.19:054:17Third Quarter4Sat
5Sun6:507.87:395.212:191.91:552.09:054:18Third Quarter5Sun
6Mon7:537.89:185.11:183.03:201.59:044:20Waning Crescent6Mon
7Tue8:577.910:425.42:293.84:290.89:034:21Waning Crescent7Tue
8Wed9:578.111:435.83:434.25:260.29:034:23Waning Crescent8Wed
9Thu10:508.34:484.36:12-0.39:024:24Waning Crescent9Thu
10Fri12:306.211:38 AM8.55:434.16:52-0.79:014:26New Moon10Fri
11Sat1:086.512:198.66:283.87:26-0.99:004:28New Moon11Sat
12Sun1:416.712:578.57:083.47:57-1.08:594:29New Moon12Sun
13Mon2:116.91:328.47:443.18:26-0.98:584:31New Moon13Mon
14Tue2:407.02:058.18:192.98:54-0.68:574:33Waxing Crescent14Tue
15Wed3:087.02:397.78:552.89:22-0.28:564:35Waxing Crescent15Wed
16Thu3:367.03:147.29:322.79:510.48:554:36Waxing Crescent16Thu
17Fri4:067.13:506.610:122.810:211.18:544:38Waxing Crescent17Fri
18Sat4:377.14:315.910:562.910:531.98:534:40First Quarter18Sat
19Sun5:137.15:205.311:483.011:302.88:514:42First Quarter19Sun
20Mon5:567.16:274.712:523.08:504:44First Quarter20Mon
21Tue6:497.28:034.512:163.62:102.78:494:46First Quarter21Tue
22Wed7:537.49:464.71:204.33:311.98:474:48Waxing Gibbous22Wed
23Thu9:017.710:585.22:384.74:360.98:464:50Waxing Gibbous23Thu
24Fri10:038.311:495.93:534.55:29-0.28:444:52Waxing Gibbous24Fri
25Sat11:008.84:593.96:15-1.38:424:54Waxing Gibbous25Sat
26Sun12:316.511:53 AM9.35:563.06:57-2.18:414:56Full Moon26Sun
27Mon1:107.212:439.56:482.17:37-2.68:394:58Full Moon27Mon
28Tue1:487.71:319.57:371.28:16-2.68:375:00Full Moon28Tue
29Wed2:278.22:189.18:250.68:55-2.28:365:03Waning Gibbous29Wed
30Thu3:068.43:068.49:150.39:34-1.48:345:05Waning Gibbous30Thu
31Fri3:478.53:567.610:060.410:14-0.38:325:07Waning Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

Common Questions About Chiachi Island (East Side), AK Tides

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What time does the tide turn (slack tide) in Chiachi Island (East Side), AK today?

Slack tide in Chiachi Island (East Side), AK is approximately 6:38 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 Chiachi Island (East Side), AK?

Chiachi Island (East Side), AK is currently in a spring phase. Tonight's moon is 100% 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 maximum.

What datum are Chiachi Island (East Side), 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 Chiachi Island (East Side), AK?

Tide predictions for Chiachi Island (East Side), 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 Chiachi Island (East Side), AK?

Tide data for Chiachi Island (East Side), AK is sourced from NOAA Station #9459085. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9459085.

What is the moon phase in Chiachi Island (East Side), AK tonight?

Tonight the moon over Chiachi Island (East Side), AK is Full Moon (100% illuminated). This places Chiachi Island (East Side), AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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