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

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 8:42 am (-2.4 ft)
Next high tide : in 4h 51m at 1:17 am (9.2 ft)
Sunset today : 11:15 pm
Sunrise tomorrow : 6:09 am
Moon phase : New Moon (4% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

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

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:176.910:246.43:491.44:422.78:425:57Waning Crescent1Fri
2Sat11:037.611:326.64:471.55:421.38:455:54Waning Crescent2Sat
3Sun11:448.15:361.86:310.28:475:52Waning Crescent3Sun
4Mon12:296.712:218.66:202.07:15-0.78:495:50New Moon4Mon
5Tue1:196.912:578.97:002.47:54-1.28:515:48New Moon5Tue
6Wed2:036.91:319.07:372.88:31-1.38:535:46New Moon6Wed
7Thu2:446.92:049.08:133.29:07-1.28:555:44New Moon7Thu
8Fri3:236.82:388.88:483.69:42-0.88:575:42Waxing Crescent8Fri
9Sat4:016.53:128.59:234.010:19-0.38:595:40Waxing Crescent9Sat
10Sun4:416.23:478.09:594.410:570.39:015:38Waxing Crescent10Sun
11Mon5:235.94:267.510:394.811:391.09:035:36Waxing Crescent11Mon
12Tue6:105.75:116.911:265.19:065:35First Quarter12Tue
13Wed7:035.66:046.312:251.612:255.39:085:33First Quarter13Wed
14Thu8:025.67:125.71:162.11:425.29:105:31First Quarter14Thu
15Fri8:595.98:355.42:132.53:114.69:125:29First Quarter15Fri
16Sat9:466.49:575.43:112.74:243.59:145:28Waxing Gibbous16Sat
17Sun10:267.011:045.64:052.95:172.39:165:26Waxing Gibbous17Sun
18Mon11:047.74:533.06:021.09:185:24Waxing Gibbous18Mon
19Tue12:016.011:42 AM8.35:383.16:44-0.19:205:23Waxing Gibbous19Tue
20Wed12:526.412:218.96:223.27:26-1.19:225:21Full Moon20Wed
21Thu1:396.71:029.57:063.28:08-1.99:245:20Full Moon21Thu
22Fri2:246.91:449.87:503.38:52-2.39:265:19Full Moon22Fri
23Sat3:106.92:289.88:343.39:36-2.49:285:17Waning Gibbous23Sat
24Sun3:576.93:159.69:213.410:23-2.19:295:16Waning Gibbous24Sun
25Mon4:466.84:059.110:123.511:12-1.59:315:15Waning Gibbous25Mon
26Tue5:386.85:008.311:093.79:335:13Waning Gibbous26Tue
27Wed6:346.76:017.412:03-0.712:163.89:355:12Third Quarter27Wed
28Thu7:326.87:146.512:570.31:363.69:375:11Third Quarter28Thu
29Fri8:337.18:405.81:551.23:073.09:385:10Third Quarter29Fri
30Sat9:307.510:095.62:582.04:262.09:405:09Waning Crescent30Sat
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 4:59 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 4% 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 (4% 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