55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

56°
H -°
L 49°
WNW
8mph
High tide
4:44 am

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

TIDE TIMES for Monday, August 31, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 10:59 am (0.5 ft)
Next high tide : in 5h 08m at 4:44 am (7.3 ft)
Sunset today : 9:35 pm
Sunrise tomorrow : 7:38 am
Moon phase : Waning Gibbous (92% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jun 1921

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:205.09:356.93:382.33:162.53:589:09Waning Crescent1Wed
2Thu10:265.310:197.54:321.24:082.53:579:10Waning Crescent2Thu
3Fri11:225.611:028.15:200.14:572.53:569:11Waning Crescent3Fri
4Sat12:136.06:04-1.05:452.43:569:13New Moon4Sat
5Sun12:596.46:48-1.96:322.23:559:14New Moon5Sun
6Mon12:299.01:456.67:31-2.57:192.13:549:15New Moon6Mon
7Tue1:149.22:306.88:14-2.98:062.03:539:16Waxing Crescent7Tue
8Wed2:009.13:176.98:59-2.98:552.03:539:17Waxing Crescent8Wed
9Thu2:488.84:066.99:44-2.59:482.13:529:18Waxing Crescent9Thu
10Fri3:398.24:566.910:32-1.910:472.33:519:19Waxing Crescent10Fri
11Sat4:357.45:506.911:22-1.011:542.33:519:20First Quarter11Sat
12Sun5:376.66:477.012:15-0.13:519:21First Quarter12Sun
13Mon6:505.87:477.11:112.21:140.93:509:21First Quarter13Mon
14Tue8:155.38:457.32:351.72:161.73:509:22Waxing Gibbous14Tue
15Wed9:375.29:397.63:481.03:192.33:509:23Waxing Gibbous15Wed
16Thu10:485.410:287.94:490.24:172.63:509:23Waxing Gibbous16Thu
17Fri11:475.711:138.15:40-0.45:102.83:509:24Waxing Gibbous17Fri
18Sat12:355.96:24-0.95:572.93:509:24Full Moon18Sat
19Sun1:166.17:03-1.26:393.03:509:25Full Moon19Sun
20Mon12:338.21:546.27:39-1.37:183.03:509:25Full Moon20Mon
21Tue1:108.22:286.38:12-1.37:552.93:509:25Full Moon21Tue
22Wed1:458.03:026.38:44-1.28:323.03:509:25Waning Gibbous22Wed
23Thu2:207.73:366.29:17-0.99:103.03:509:25Waning Gibbous23Thu
24Fri2:567.34:106.29:49-0.59:513.13:519:25Waning Gibbous24Fri
25Sat3:336.94:456.210:230.010:363.23:519:25Waning Gibbous25Sat
26Sun4:146.35:236.210:590.611:273.33:529:25Third Quarter26Sun
27Mon5:015.76:066.311:391.23:529:25Third Quarter27Mon
28Tue5:575.26:546.412:263.212:241.93:539:25Third Quarter28Tue
29Wed7:094.87:476.71:352.91:172.53:549:25Third Quarter29Wed
30Thu8:334.78:427.22:492.22:182.93:549:24Waning Crescent30Thu
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 spring phase. Tonight's moon is 92% 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 (92% 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