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

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 12:04 pm (0.3 ft)
Next high tide : in 5h 35m at 5:38 am (6.7 ft)
Sunset today : 10:39 pm
Sunrise tomorrow : 6:46 am
Moon phase : Waning Gibbous (74% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Apr 2026

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:437.73:017.39:07-0.29:110.38:059:14Full Moon1Wed
2Thu3:108.03:397.19:42-0.79:390.88:029:16Full Moon2Thu
3Fri3:368.14:156.810:15-0.910:071.58:009:18Full Moon3Fri
4Sat4:028.24:516.410:47-0.810:342.27:579:20Waning Gibbous4Sat
5Sun4:298.15:266.011:21-0.411:032.97:559:22Waning Gibbous5Sun
6Mon4:587.86:055.511:570.111:333.67:529:24Waning Gibbous6Mon
7Tue5:307.56:495.012:390.87:499:27Waning Gibbous7Tue
8Wed6:087.17:494.512:054.31:291.57:479:29Third Quarter8Wed
9Thu6:566.69:234.312:464.92:342.07:449:31Third Quarter9Thu
10Fri8:026.111:064.61:515.33:582.17:429:33Third Quarter10Fri
11Sat9:305.911:575.03:335.45:141.87:399:35Third Quarter11Sat
12Sun10:556.05:144.66:061.37:379:37Waning Crescent12Sun
13Mon12:305.612:026.26:203.46:470.87:349:39Waning Crescent13Mon
14Tue12:596.412:586.67:091.97:240.67:329:41Waning Crescent14Tue
15Wed1:297.11:476.97:530.58:000.57:299:43New Moon15Wed
16Thu2:007.92:347.18:35-0.98:360.67:279:45New Moon16Thu
17Fri2:338.63:207.19:16-1.99:121.07:249:47New Moon17Fri
18Sat3:089.14:077.09:59-2.69:501.57:229:49New Moon18Sat
19Sun3:469.34:556.710:43-2.710:302.17:199:51Waxing Crescent19Sun
20Mon4:279.35:476.311:31-2.411:142.87:179:53Waxing Crescent20Mon
21Tue5:139.06:455.812:24-1.77:149:55Waxing Crescent21Tue
22Wed6:048.47:535.412:033.51:23-0.87:129:57First Quarter22Wed
23Thu7:057.69:155.31:034.22:320.07:099:59First Quarter23Thu
24Fri8:206.810:365.62:244.53:510.57:0710:01First Quarter24Fri
25Sat9:516.311:366.04:104.25:040.77:0510:03First Quarter25Sat
26Sun11:166.15:403.26:010.87:0210:05Waxing Gibbous26Sun
27Mon12:216.612:256.16:421.96:470.97:0010:07Waxing Gibbous27Mon
28Tue12:587.11:216.27:320.87:261.26:5810:09Waxing Gibbous28Tue
29Wed1:317.52:096.38:13-0.18:011.56:5510:11Full Moon29Wed
30Thu2:007.82:516.38:49-0.88:331.96:5310:13Full Moon30Thu
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 8:51 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 transitional phase. Tonight's moon is 74% 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 shifting between spring and neap.

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 (74% illuminated). This places Chiachi Island (East Side), AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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