55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

52°
H 53°
L 49°
SW
9mph
High tide
5:55 pm

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

TIDE TIMES for Wednesday, September 16, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : 12:58 am (1.4 ft)
Next high tide : in 4h 13m at 5:55 pm (7.6 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 8:11 am
Moon phase : First Quarter (31% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Apr 1884

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:308.26:455.812:29-0.46:047:16First Quarter1Tue
2Wed6:287.68:045.512:233.11:370.46:027:18First Quarter2Wed
3Thu7:407.09:345.61:353.82:590.95:597:20First Quarter3Thu
4Fri9:076.610:475.93:113.94:200.95:567:22Waxing Gibbous4Fri
5Sat10:296.611:406.44:433.35:220.85:547:24Waxing Gibbous5Sat
6Sun11:356.75:482.46:120.65:517:26Waxing Gibbous6Sun
7Mon12:226.912:286.96:391.46:530.55:497:28Waxing Gibbous7Mon
8Tue12:577.31:137.07:210.67:280.65:467:30Full Moon8Tue
9Wed1:287.61:537.07:570.07:590.85:447:32Full Moon9Wed
10Thu1:577.82:297.08:30-0.48:291.15:417:34Full Moon10Thu
11Fri2:257.93:036.89:02-0.68:581.45:387:36Full Moon11Fri
12Sat2:527.93:376.69:33-0.69:271.95:367:38Waning Gibbous12Sat
13Sun3:217.94:116.310:06-0.49:582.45:337:40Waning Gibbous13Sun
14Mon3:517.74:485.910:410.010:312.95:317:42Waning Gibbous14Mon
15Tue4:257.45:295.611:200.411:083.55:287:44Waning Gibbous15Tue
16Wed5:027.06:185.212:041.05:267:46Third Quarter16Wed
17Thu5:476.67:195.012:561.45:237:48Third Quarter17Thu
18Fri6:456.28:355.012:514.41:591.75:217:50Third Quarter18Fri
19Sat7:595.99:455.42:094.43:101.75:187:52Third Quarter19Sat
20Sun9:225.910:396.03:353.94:141.55:167:54Waning Crescent20Sun
21Mon10:366.111:236.74:472.85:091.15:147:56Waning Crescent21Mon
22Tue11:386.55:451.55:570.75:117:58Waning Crescent22Tue
23Wed12:047.512:336.96:350.16:420.55:098:00Waning Crescent23Wed
24Thu12:458.21:247.37:22-1.27:260.45:068:02New Moon24Thu
25Fri1:258.82:137.48:08-2.28:090.55:048:04New Moon25Fri
26Sat2:069.33:017.48:53-2.88:520.75:028:06New Moon26Sat
27Sun2:499.43:517.29:39-2.99:371.24:598:08Waxing Crescent27Sun
28Mon3:349.34:426.910:27-2.610:241.84:578:10Waxing Crescent28Mon
29Tue4:218.85:376.511:18-1.911:162.54:558:12Waxing Crescent29Tue
30Wed5:138.16:386.212:13-1.04:538:14First Quarter30Wed
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 31% 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 First Quarter (31% 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