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 6h 50m 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 - May 1881

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:178.24:336.110:16-1.010:013.24:518:15Waxing Crescent1Sun
2Mon3:537.85:145.710:55-0.510:393.64:498:17Waxing Crescent2Mon
3Tue4:317.45:595.411:360.211:234.04:478:19Waxing Crescent3Tue
4Wed5:136.86:505.212:210.84:448:21First Quarter4Wed
5Thu6:036.27:495.112:154.41:111.44:428:23First Quarter5Thu
6Fri7:045.68:525.31:234.52:091.84:408:25First Quarter6Fri
7Sat8:205.29:455.62:484.23:092.14:388:27First Quarter7Sat
8Sun9:415.210:296.24:093.44:052.24:368:29Waxing Gibbous8Sun
9Mon10:505.311:086.85:092.34:542.24:348:31Waxing Gibbous9Mon
10Tue11:495.611:457.45:561.25:392.24:328:33Waxing Gibbous10Tue
11Wed12:405.96:390.06:222.24:308:35Waxing Gibbous11Wed
12Thu12:238.01:276.27:20-1.07:042.24:288:37Full Moon12Thu
13Fri1:018.52:126.58:01-1.87:462.24:268:39Full Moon13Fri
14Sat1:418.92:576.68:43-2.48:282.34:248:41Full Moon14Sat
15Sun2:239.13:426.69:26-2.79:122.44:228:43Waning Gibbous15Sun
16Mon3:079.14:306.510:11-2.610:002.64:218:44Waning Gibbous16Mon
17Tue3:548.85:216.410:59-2.210:522.84:198:46Waning Gibbous17Tue
18Wed4:468.26:156.311:50-1.611:533.04:178:48Waning Gibbous18Wed
19Thu5:437.47:146.312:43-0.84:168:50Third Quarter19Thu
20Fri6:506.68:156.51:043.01:410.04:148:51Third Quarter20Fri
21Sat8:085.99:166.82:282.72:440.84:128:53Third Quarter21Sat
22Sun9:345.510:117.23:542.03:461.44:118:55Waning Crescent22Sun
23Mon10:545.510:597.65:040.94:441.94:098:57Waning Crescent23Mon
24Tue12:015.66:010.05:372.34:088:58Waning Crescent24Tue
25Wed12:575.86:50-0.86:252.54:069:00Waning Crescent25Wed
26Thu12:268.21:456.07:33-1.37:092.84:059:01New Moon26Thu
27Fri1:058.42:286.18:12-1.57:493.04:049:03New Moon27Fri
28Sat1:428.43:066.28:49-1.58:273.14:039:04New Moon28Sat
29Sun2:188.33:436.19:24-1.49:043.24:019:06New Moon29Sun
30Mon2:548.14:206.09:58-1.29:423.44:009:07Waxing Crescent30Mon
31Tue3:307.84:565.910:33-0.810:213.53:599:09Waxing Crescent31Tue
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