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

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 14m at 8:42 am (-2.4 ft)
Next high tide : 3:03 pm (6.1 ft)
Sunset today : 11:14 pm
Sunrise tomorrow : 6:10 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Feb 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:448.03:338.59:430.910:07-1.59:306:09Waning Gibbous1Fri
2Sat4:198.14:177.710:280.810:41-0.59:286:11Waning Gibbous2Sat
3Sun4:538.05:006.911:141.011:130.79:266:14Waning Gibbous3Sun
4Mon5:277.95:466.012:011.49:246:16Third Quarter4Mon
5Tue6:047.66:375.112:542.09:226:18Third Quarter5Tue
6Wed6:447.37:504.512:213.22:012.59:206:20Third Quarter6Wed
7Thu7:367.09:594.21:024.33:362.69:186:22Third Quarter7Thu
8Fri8:446.811:464.62:025.25:042.39:166:24Waning Crescent8Fri
9Sat10:026.93:355.66:041.69:146:27Waning Crescent9Sat
10Sun12:385.011:08 AM7.25:065.46:480.99:126:29Waning Crescent10Sun
11Mon1:115.512:007.56:084.87:220.39:096:31Waning Crescent11Mon
12Tue1:385.912:437.86:544.07:51-0.39:076:33New Moon12Tue
13Wed2:026.31:228.17:333.28:18-0.79:056:35New Moon13Wed
14Thu2:276.71:588.18:092.48:44-1.09:036:38New Moon14Thu
15Fri2:517.12:348.18:441.79:11-0.99:006:40New Moon15Fri
16Sat3:177.53:107.89:211.19:39-0.68:586:42Waxing Crescent16Sat
17Sun3:447.83:487.49:590.710:080.08:566:44Waxing Crescent17Sun
18Mon4:138.14:286.910:400.510:400.88:546:46Waxing Crescent18Mon
19Tue4:468.25:146.211:250.511:141.88:516:48Waxing Crescent19Tue
20Wed5:258.26:095.412:190.88:496:51First Quarter20Wed
21Thu6:128.17:234.81:241.28:466:53First Quarter21Thu
22Fri7:127.89:174.512:463.92:501.38:446:55First Quarter22Fri
23Sat8:307.711:044.92:014.74:250.98:426:57Waxing Gibbous23Sat
24Sun9:587.83:424.95:380.18:396:59Waxing Gibbous24Sun
25Mon12:075.611:13 AM8.15:134.26:32-0.78:377:01Waxing Gibbous25Mon
26Tue12:516.312:168.46:223.07:17-1.38:347:03Waxing Gibbous26Tue
27Wed1:297.01:098.67:161.87:56-1.68:327:06Full Moon27Wed
28Thu2:037.61:558.58:030.88:31-1.58:297:08Full Moon28Thu
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 11:52 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 1% 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 New Moon (1% 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