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

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 7:42 am (-1.1 ft)
Next high tide : in 3h 16m at 12:11 am (8.5 ft)
Sunset today : 10:26 pm
Sunrise tomorrow : 6:57 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - May 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:276.66:055.111:361.111:324.44:518:15Third Quarter1Tue
2Wed5:196.07:085.112:301.64:498:17Third Quarter2Wed
3Thu6:255.58:115.312:444.51:311.94:478:19Third Quarter3Thu
4Fri7:465.39:035.82:114.12:332.14:448:21Third Quarter4Fri
5Sat9:045.39:466.33:273.23:272.14:428:23Waning Crescent5Sat
6Sun10:105.510:247.04:232.04:142.04:408:25Waning Crescent6Sun
7Mon11:055.811:027.65:090.84:582.04:388:27Waning Crescent7Mon
8Tue11:556.211:408.25:52-0.35:401.94:368:29New Moon8Tue
9Wed12:426.56:34-1.36:221.94:348:31New Moon9Wed
10Thu12:198.81:276.77:16-2.17:042.04:328:33New Moon10Thu
11Fri12:599.12:126.77:58-2.67:472.14:308:34New Moon11Fri
12Sat1:429.22:596.68:43-2.78:322.34:288:36Waxing Crescent12Sat
13Sun2:279.13:496.59:29-2.59:212.54:268:38Waxing Crescent13Sun
14Mon3:168.64:426.310:19-2.010:162.84:248:40Waxing Crescent14Mon
15Tue4:108.05:396.311:11-1.211:203.14:228:42First Quarter15Tue
16Wed5:107.26:406.312:08-0.44:218:44First Quarter16Wed
17Thu6:216.47:446.512:373.01:090.44:198:46First Quarter17Thu
18Fri7:445.88:446.82:062.62:141.04:178:47First Quarter18Fri
19Sat9:085.69:377.33:261.73:151.54:168:49Waxing Gibbous19Sat
20Sun10:225.610:237.74:300.74:101.94:148:51Waxing Gibbous20Sun
21Mon11:235.811:058.05:23-0.25:002.24:128:53Waxing Gibbous21Mon
22Tue12:156.06:09-0.95:452.54:118:54Full Moon22Tue
23Wed12:596.16:49-1.36:262.74:098:56Full Moon23Wed
24Thu12:218.31:396.27:26-1.47:042.94:088:58Full Moon24Thu
25Fri12:568.32:176.28:01-1.47:403.04:068:59Full Moon25Fri
26Sat1:318.22:536.18:35-1.38:163.24:059:01Waning Gibbous26Sat
27Sun2:068.03:296.09:09-1.08:533.44:049:02Waning Gibbous27Sun
28Mon2:427.64:065.89:44-0.69:333.64:039:04Waning Gibbous28Mon
29Tue3:197.24:455.710:21-0.210:173.74:019:05Waning Gibbous29Tue
30Wed4:006.65:265.710:590.411:083.84:009:07Third Quarter30Wed
31Thu4:466.06:115.711:410.93:599:08Third Quarter31Thu
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 3:56 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 12% 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 Waning Crescent (12% 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