55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

42°
H -°
L 39°
SW
4mph
High tide
7:21 am

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

TIDE TIMES for Saturday, October 31, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 12:33 pm (4.7 ft)
Next high tide : in 5h 51m at 7:21 am (5.9 ft)
Sunset today : 6:58 pm
Sunrise tomorrow : 9:41 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Sep 1809

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:495.16:456.712:492.112:313.95:397:34Third Quarter1Fri
2Sat8:074.77:476.41:562.61:284.65:417:31Third Quarter2Sat
3Sun9:534.79:046.43:252.72:484.95:437:29Third Quarter3Sun
4Mon11:085.010:166.64:452.44:164.75:457:26Third Quarter4Mon
5Tue11:545.511:147.05:381.85:224.15:477:24Waning Crescent5Tue
6Wed12:296.06:191.16:113.35:497:21Waning Crescent6Wed
7Thu12:027.31:006.56:540.66:522.45:507:18Waning Crescent7Thu
8Fri12:457.71:297.07:250.17:311.55:527:16Waning Crescent8Fri
9Sat1:257.91:587.57:56-0.28:080.75:547:13New Moon9Sat
10Sun2:048.02:297.98:28-0.28:470.15:567:11New Moon10Sun
11Mon2:438.03:018.39:01-0.19:26-0.45:587:08New Moon11Mon
12Tue3:247.73:358.59:360.410:09-0.56:007:05Waxing Crescent12Tue
13Wed4:087.34:148.510:131.010:55-0.36:027:03Waxing Crescent13Wed
14Thu4:566.84:578.310:541.811:470.16:047:00Waxing Crescent14Thu
15Fri5:516.25:478.011:412.76:066:57Waxing Crescent15Fri
16Sat6:595.66:487.612:480.712:383.66:086:55First Quarter16Sat
17Sun8:275.48:057.32:031.11:534.16:106:52First Quarter17Sun
18Mon9:585.69:327.33:301.13:264.16:126:49First Quarter18Mon
19Tue11:066.210:487.54:460.84:513.36:146:47Waxing Gibbous19Tue
20Wed11:576.811:507.85:450.35:562.36:166:44Waxing Gibbous20Wed
21Thu12:397.46:330.06:481.36:186:42Waxing Gibbous21Thu
22Fri12:438.01:177.87:14-0.17:330.46:206:39Waxing Gibbous22Fri
23Sat1:298.01:518.27:510.08:13-0.26:226:36Full Moon23Sat
24Sun2:127.92:238.48:250.38:51-0.46:246:34Full Moon24Sun
25Mon2:517.72:558.48:580.89:27-0.46:266:31Full Moon25Mon
26Tue3:297.43:268.29:301.410:03-0.16:286:28Waning Gibbous26Tue
27Wed4:076.93:578.010:022.210:400.46:296:26Waning Gibbous27Wed
28Thu4:456.44:317.610:352.911:201.06:316:23Waning Gibbous28Thu
29Fri5:285.95:087.211:113.76:336:20Waning Gibbous29Fri
30Sat6:185.45:546.812:051.711:54 AM4.46:356:18Third Quarter30Sat
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 transitional phase. Tonight's moon is 62% 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 Third Quarter (62% 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