55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

52°
H 54°
L 50°
N
0mph
High tide
5:00 pm

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 : 11:33 pm (0.1 ft)
Next high tide : in 4h 56m at 5:00 pm (8.1 ft)
Sunset today : 9:32 pm
Sunrise tomorrow : 7:40 am
Moon phase : Waning Gibbous (85% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jun 1920

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:238.01:416.17:28-1.17:053.03:589:09Full Moon1Tue
2Wed12:578.12:156.18:00-1.17:403.13:579:10Full Moon2Wed
3Thu1:308.02:506.18:32-1.18:153.23:569:12Waning Gibbous3Thu
4Fri2:047.83:246.09:05-0.98:523.33:559:13Waning Gibbous4Fri
5Sat2:397.64:005.99:39-0.79:323.43:559:14Waning Gibbous5Sat
6Sun3:167.14:385.910:15-0.310:163.53:549:15Waning Gibbous6Sun
7Mon3:576.75:185.910:530.111:073.53:539:16Third Quarter7Mon
8Tue4:446.16:036.011:350.73:529:17Third Quarter8Tue
9Wed5:415.66:526.212:073.412:221.23:529:18Third Quarter9Wed
10Thu6:515.27:466.61:183.01:161.83:519:19Third Quarter10Thu
11Fri8:145.08:407.22:322.22:162.23:519:20Waning Crescent11Fri
12Sat9:345.19:337.83:401.13:172.53:509:21Waning Crescent12Sat
13Sun10:445.510:258.44:40-0.14:162.53:509:21Waning Crescent13Sun
14Mon11:455.911:169.05:35-1.35:122.43:509:22Waning Crescent14Mon
15Tue12:396.46:25-2.36:072.23:509:23New Moon15Tue
16Wed12:079.41:286.77:13-3.07:001.93:509:23New Moon16Wed
17Thu12:579.62:167.08:00-3.37:511.73:509:24New Moon17Thu
18Fri1:469.43:037.18:45-3.28:431.73:509:24Waxing Crescent18Fri
19Sat2:369.03:517.29:31-2.89:361.73:509:25Waxing Crescent19Sat
20Sun3:278.34:397.210:16-2.010:331.93:509:25Waxing Crescent20Sun
21Mon4:217.45:287.111:02-1.011:352.13:509:25First Quarter21Mon
22Tue5:186.56:197.011:500.13:509:25First Quarter22Tue
23Wed6:235.67:147.012:462.212:411.23:509:25First Quarter23Wed
24Thu7:425.08:107.02:072.01:382.23:519:25First Quarter24Thu
25Fri9:084.89:057.13:231.62:392.93:519:25Waxing Gibbous25Fri
26Sat10:254.99:557.34:251.03:393.43:529:25Waxing Gibbous26Sat
27Sun11:255.110:407.55:170.54:343.63:529:25Waxing Gibbous27Sun
28Mon12:135.46:010.05:223.63:539:25Waxing Gibbous28Mon
29Tue12:525.76:39-0.46:053.53:549:25Full Moon29Tue
30Wed12:007.91:265.97:12-0.76:453.33:559:24Full Moon30Wed
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 85% 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 (85% 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