55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

39°
H 43°
L 40°
WNW
7mph
High tide
7:48 am

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

TIDE TIMES for Saturday, October 17, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 12:43 pm (5.6 ft)
Next high tide : in 37m at 7:48 am (5.0 ft)
Sunset today : 7:30 pm
Sunrise tomorrow : 9:12 am
Moon phase : First Quarter (42% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jul 1831

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:336.66:486.412:230.13:549:25Waning Gibbous1Fri
2Sat6:306.07:386.612:543.01:110.73:559:24Third Quarter2Sat
3Sun7:405.58:347.02:032.62:061.43:569:24Third Quarter3Sun
4Mon9:045.29:327.53:201.93:071.93:579:23Third Quarter4Mon
5Tue10:295.310:298.14:330.84:112.33:589:23Waning Crescent5Tue
6Wed11:435.611:248.65:38-0.35:142.53:599:22Waning Crescent6Wed
7Thu12:476.06:35-1.46:142.44:009:21Waning Crescent7Thu
8Fri12:189.11:416.57:27-2.37:102.24:019:21Waning Crescent8Fri
9Sat1:109.42:316.88:15-2.88:032.04:029:20New Moon9Sat
10Sun2:009.53:177.19:01-3.08:531.84:039:19New Moon10Sun
11Mon2:489.34:027.29:45-2.89:421.84:049:18New Moon11Mon
12Tue3:358.84:467.110:28-2.310:321.94:069:17Waxing Crescent12Tue
13Wed4:228.15:307.011:09-1.511:232.24:079:16Waxing Crescent13Wed
14Thu5:107.36:146.911:51-0.54:089:15Waxing Crescent14Thu
15Fri6:006.47:006.712:192.512:330.64:109:14First Quarter15Fri
16Sat6:575.67:496.61:212.71:181.64:119:12First Quarter16Sat
17Sun8:074.98:426.62:352.72:092.64:139:11First Quarter17Sun
18Mon9:334.69:376.73:542.43:083.34:149:10First Quarter18Mon
19Tue10:564.710:296.95:011.94:103.74:169:08Waxing Gibbous19Tue
20Wed12:015.05:551.35:083.94:179:07Waxing Gibbous20Wed
21Thu12:505.36:400.65:593.84:199:06Waxing Gibbous21Thu
22Fri12:017.51:305.67:180.16:453.64:219:04Waxing Gibbous22Fri
23Sat12:427.82:056.07:53-0.57:263.34:229:02Full Moon23Sat
24Sun1:208.12:386.28:25-0.98:053.04:249:01Full Moon24Sun
25Mon1:588.23:096.48:56-1.28:432.74:268:59Full Moon25Mon
26Tue2:348.23:426.69:28-1.39:222.44:278:57Full Moon26Tue
27Wed3:118.14:156.810:01-1.310:022.24:298:56Waning Gibbous27Wed
28Thu3:507.84:496.910:35-1.010:462.04:318:54Waning Gibbous28Thu
29Fri4:327.35:277.011:12-0.511:352.04:338:52Waning Gibbous29Fri
30Sat5:196.76:097.111:520.34:358:50Waning Gibbous30Sat
31Sun6:146.06:577.212:311.912:371.24:368:48Third Quarter31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

Common Questions About Chiachi Island (East Side), AK Tides

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Is this week a spring tide or neap tide in Chiachi Island (East Side), AK?

Chiachi Island (East Side), AK is currently in a neap phase. Tonight's moon is 42% 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 minimum.

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 First Quarter (42% illuminated). This places Chiachi Island (East Side), AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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