55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

51°
H 54°
L 50°
NNE
0mph
Low tide
10:59 am

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

TIDE TIMES for Monday, August 31, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 3h 34m at 10:59 am (0.5 ft)
Next high tide : 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 - Nov 1920

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:426.64:138.210:183.511:16-0.27:434:56Third Quarter1Mon
2Tue5:446.45:167.511:234.07:454:54Third Quarter2Tue
3Wed6:556.46:336.812:180.612:454.17:474:52Third Quarter3Wed
4Thu8:076.78:026.41:291.22:213.57:494:50Third Quarter4Thu
5Fri9:097.19:246.42:411.63:412.57:514:48Waning Crescent5Fri
6Sat9:597.610:326.53:421.84:411.47:544:46Waning Crescent6Sat
7Sun10:438.111:286.74:341.95:310.47:564:44Waning Crescent7Sun
8Mon11:228.55:202.16:14-0.47:584:42New Moon8Mon
9Tue12:166.911:58 AM8.76:002.36:52-0.88:004:40New Moon9Tue
10Wed12:597.012:328.86:382.67:28-1.08:024:38New Moon10Wed
11Thu1:387.01:058.87:132.98:01-1.08:044:36New Moon11Thu
12Fri2:156.91:378.67:473.28:35-0.78:064:34Waxing Crescent12Fri
13Sat2:516.72:108.48:223.69:09-0.38:084:32Waxing Crescent13Sat
14Sun3:286.52:448.08:583.99:450.28:104:31Waxing Crescent14Sun
15Mon4:076.33:227.59:374.310:240.88:124:29Waxing Crescent15Mon
16Tue4:506.04:046.910:224.611:071.48:144:27First Quarter16Tue
17Wed5:385.94:536.311:164.911:541.98:164:26First Quarter17Wed
18Thu6:325.95:565.812:244.98:184:24First Quarter18Thu
19Fri7:316.17:155.512:492.41:454.58:204:23First Quarter19Fri
20Sat8:256.58:385.41:492.73:033.68:224:21Waxing Gibbous20Sat
21Sun9:127.19:505.72:482.94:022.48:244:20Waxing Gibbous21Sun
22Mon9:567.710:506.13:422.94:521.18:264:18Waxing Gibbous22Mon
23Tue10:388.411:426.54:322.95:37-0.18:284:17Waxing Gibbous23Tue
24Wed11:209.05:192.86:21-1.28:304:16Full Moon24Wed
25Thu12:306.912:039.56:062.77:04-2.08:324:14Full Moon25Thu
26Fri1:177.212:479.96:522.67:48-2.58:344:13Full Moon26Fri
27Sat2:037.31:329.97:382.68:32-2.68:354:12Waning Gibbous27Sat
28Sun2:507.42:199.68:252.69:18-2.38:374:11Waning Gibbous28Sun
29Mon3:387.33:089.19:162.810:06-1.68:394:10Waning Gibbous29Mon
30Tue4:307.24:028.310:133.110:56-0.78:414:09Waning Gibbous30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

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

Collapse All
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