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

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 17m at 11:33 am (-0.5 ft)
Next high tide : 5:44 pm (7.1 ft)
Sunset today : 10:41 pm
Sunrise tomorrow : 6:44 am
Moon phase : Waning Gibbous (83% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Sep 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:505.710:538.05:260.34:594.25:407:32Waning Crescent1Fri
2Sat12:216.36:06-0.65:503.15:427:29New Moon2Sat
3Sun12:526.96:42-1.36:361.95:447:27New Moon3Sun
4Mon12:308.71:237.57:17-1.77:210.85:467:24New Moon4Mon
5Tue1:168.81:568.07:52-1.68:05-0.25:487:21New Moon5Tue
6Wed2:018.52:308.48:27-1.28:51-0.75:507:19Waxing Crescent6Wed
7Thu2:488.03:068.69:03-0.39:39-0.85:527:16Waxing Crescent7Thu
8Fri3:377.33:458.79:400.810:31-0.55:547:14Waxing Crescent8Fri
9Sat4:326.44:288.410:212.111:290.15:567:11First Quarter9Sat
10Sun5:365.65:198.011:073.45:587:08First Quarter10Sun
11Mon7:035.06:247.612:410.812:054.56:007:06First Quarter11Mon
12Tue8:585.07:487.22:131.21:315.36:017:03First Quarter12Tue
13Wed10:225.49:167.33:431.03:205.26:037:00Waxing Gibbous13Wed
14Thu11:155.910:267.54:480.64:384.46:056:58Waxing Gibbous14Thu
15Fri11:556.411:207.75:370.25:333.56:076:55Waxing Gibbous15Fri
16Sat12:266.86:17-0.16:162.66:096:52Full Moon16Sat
17Sun12:047.812:537.16:49-0.26:521.86:116:50Full Moon17Sun
18Mon12:427.81:187.37:17-0.17:251.16:136:47Full Moon18Mon
19Tue1:177.71:417.57:420.27:560.76:156:44Full Moon19Tue
20Wed1:517.42:047.78:070.78:270.46:176:42Waning Gibbous20Wed
21Thu2:247.12:277.78:311.48:590.46:196:39Waning Gibbous21Thu
22Fri2:576.72:527.78:572.19:330.76:216:37Waning Gibbous22Fri
23Sat3:336.23:207.69:243.010:111.16:236:34Waning Gibbous23Sat
24Sun4:125.73:527.49:523.810:551.66:256:31Third Quarter24Sun
25Mon5:005.14:317.110:234.611:512.26:276:29Third Quarter25Mon
26Tue6:104.75:256.811:065.46:296:26Third Quarter26Tue
27Wed8:134.66:436.61:082.512:255.96:316:23Third Quarter27Wed
28Thu9:505.08:156.72:432.22:165.86:336:21Waning Crescent28Thu
29Fri10:335.59:327.13:551.53:434.96:356:18Waning Crescent29Fri
30Sat11:066.210:337.64:450.64:443.56:376:15Waning 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 2:38 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 Chiachi Island (East Side), AK?

Chiachi Island (East Side), AK is currently in a spring phase. Tonight's moon is 83% 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 Gibbous (83% 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