55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

47°
H 53°
L 42°
NNE
5mph
High tide
10:21 am

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

TIDE TIMES for Saturday, September 19, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 2:17 pm (5.8 ft)
Next high tide : in 3h 53m at 10:21 am (4.5 ft)
Sunset today : 8:43 pm
Sunrise tomorrow : 8:16 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jan 1881

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:547.42:209.98:262.49:21-3.09:074:15New Moon1Sat
2Sun3:377.73:099.69:172.010:03-2.69:064:16Waxing Crescent2Sun
3Mon4:197.93:588.910:081.810:44-1.99:064:17Waxing Crescent3Mon
4Tue5:028.04:488.011:011.811:25-0.99:054:19Waxing Crescent4Tue
5Wed5:467.95:417.011:581.99:054:20First Quarter5Wed
6Thu6:317.86:406.012:070.41:012.29:044:21First Quarter6Thu
7Fri7:217.67:555.212:511.72:162.39:044:23First Quarter7Fri
8Sat8:167.59:344.81:413.03:432.29:034:24First Quarter8Sat
9Sun9:177.411:114.92:434.04:581.79:024:26Waxing Gibbous9Sun
10Mon10:187.53:564.75:591.29:014:28Waxing Gibbous10Mon
11Tue12:215.211:13 AM7.75:074.96:470.69:004:29Waxing Gibbous11Tue
12Wed1:095.612:018.06:054.77:260.18:594:31Waxing Gibbous12Wed
13Thu1:466.012:448.26:534.48:00-0.38:584:33Full Moon13Thu
14Fri2:176.31:228.37:334.08:30-0.68:574:35Full Moon14Fri
15Sat2:456.51:578.48:103.68:57-0.88:564:37Full Moon15Sat
16Sun3:126.72:318.38:443.29:24-0.88:554:38Full Moon16Sun
17Mon3:386.93:058.09:192.99:51-0.78:544:40Waning Gibbous17Mon
18Tue4:057.03:387.79:552.610:19-0.38:524:42Waning Gibbous18Tue
19Wed4:327.14:147.210:332.510:480.28:514:44Waning Gibbous19Wed
20Thu5:027.34:536.611:142.411:200.98:494:46Waning Gibbous20Thu
21Fri5:357.45:396.012:022.48:484:48Third Quarter21Fri
22Sat6:147.56:365.312:592.48:474:50Third Quarter22Sat
23Sun7:017.67:554.812:362.82:102.38:454:52Third Quarter23Sun
24Mon8:017.79:414.61:313.73:341.88:434:54Third Quarter24Mon
25Tue9:137.911:175.02:454.44:540.98:424:56Waning Crescent25Tue
26Wed10:258.34:084.56:00-0.28:404:59Waning Crescent26Wed
27Thu12:225.711:31 AM8.85:244.16:53-1.38:385:01Waning Crescent27Thu
28Fri1:116.412:309.36:303.27:39-2.18:375:03New Moon28Fri
29Sat1:537.11:249.57:272.38:22-2.68:355:05New Moon29Sat
30Sun2:337.62:139.58:191.49:01-2.68:335:07New Moon30Sun
31Mon3:128.13:019.19:070.79:40-2.28:315:09Waxing Crescent31Mon
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 neap phase. Tonight's moon is 59% 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 minimum.

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 (59% illuminated). This places Chiachi Island (East Side), AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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