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

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 11:11 pm (1.8 ft)
Next high tide : in 5h 24m at 5:15 pm (6.9 ft)
Sunset today : 10:43 pm
Sunrise tomorrow : 6:42 am
Moon phase : Waning Gibbous (90% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jul 1969

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:319.64:026.79:42-3.29:272.54:5610:24Waning Gibbous1Tue
2Wed3:229.24:486.810:27-2.910:212.34:5710:23Waning Gibbous2Wed
3Thu4:138.55:326.911:11-2.211:192.14:5710:23Waning Gibbous3Thu
4Fri5:067.66:177.011:54-1.34:5810:22Third Quarter4Fri
5Sat6:026.67:037.012:202.112:37-0.14:5910:21Third Quarter5Sat
6Sun7:055.67:517.11:282.01:221.15:0110:21Third Quarter6Sun
7Mon8:214.98:427.12:441.92:112.35:0210:20Third Quarter7Mon
8Tue9:534.59:357.24:021.53:073.45:0310:19Waning Crescent8Tue
9Wed11:224.610:277.35:101.04:094.15:0410:18Waning Crescent9Wed
10Thu12:324.96:070.55:104.55:0510:17Waning Crescent10Thu
11Fri1:235.26:550.16:064.65:0710:16Waning Crescent11Fri
12Sat12:047.72:025.57:36-0.36:554.55:0810:15New Moon12Sat
13Sun12:487.92:365.78:13-0.67:374.25:0910:14New Moon13Sun
14Mon1:288.03:065.88:45-0.98:153.85:1110:13New Moon14Mon
15Tue2:058.13:356.09:16-1.08:523.55:1210:11New Moon15Tue
16Wed2:418.04:036.19:45-1.19:293.25:1410:10Waxing Crescent16Wed
17Thu3:157.84:316.210:13-1.010:073.05:1510:09Waxing Crescent17Thu
18Fri3:517.45:006.310:42-0.710:472.85:1710:07Waxing Crescent18Fri
19Sat4:296.95:306.511:13-0.211:322.65:1910:06Waxing Crescent19Sat
20Sun5:106.36:026.711:440.55:2010:04First Quarter20Sun
21Mon5:595.66:406.912:232.412:201.45:2210:03First Quarter21Mon
22Tue7:005.07:267.21:232.21:012.45:2310:01First Quarter22Tue
23Wed8:214.58:227.52:341.81:533.45:2510:00First Quarter23Wed
24Thu10:024.59:277.93:541.23:014.15:279:58Waxing Gibbous24Thu
25Fri11:344.810:348.35:090.24:184.45:299:56Waxing Gibbous25Fri
26Sat12:415.36:14-0.85:314.25:309:54Waxing Gibbous26Sat
27Sun1:325.97:09-1.76:373.65:329:53Full Moon27Sun
28Mon12:389.22:156.47:58-2.57:352.85:349:51Full Moon28Mon
29Tue1:339.52:566.98:42-2.98:282.05:369:49Full Moon29Tue
30Wed2:249.43:357.29:23-2.99:191.35:389:47Waning Gibbous30Wed
31Thu3:139.04:147.510:02-2.410:090.95:399:45Waning Gibbous31Thu
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 8:13 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 90% 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 (90% 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