55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

49°
H 53°
L 42°
NNW
1mph
Low tide
2:17 pm

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

TIDE TIMES for Saturday, September 19, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 3h 44m at 2:17 pm (5.8 ft)
Next high tide : 8:37 pm (6.3 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 - Aug 1880

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:154.85:471.44:504.94:428:42Waning Crescent1Sun
2Mon12:585.26:350.85:524.54:448:40Waning Crescent2Mon
3Tue1:305.67:130.36:414.04:468:38Waning Crescent3Tue
4Wed12:337.71:586.07:46-0.37:223.34:488:36New Moon4Wed
5Thu1:137.92:256.38:14-0.77:592.74:508:34New Moon5Thu
6Fri1:508.02:516.68:42-0.98:362.14:528:32New Moon6Fri
7Sat2:258.03:176.99:09-1.09:121.64:548:30New Moon7Sat
8Sun3:017.83:447.29:37-0.89:501.24:568:28Waxing Crescent8Sun
9Mon3:387.44:147.510:07-0.310:301.04:588:25Waxing Crescent9Mon
10Tue4:186.94:467.610:380.411:150.95:008:23Waxing Crescent10Tue
11Wed5:036.35:237.711:131.25:028:21First Quarter11Wed
12Thu5:545.76:077.812:061.111:52 AM2.25:038:19First Quarter12Thu
13Fri7:005.07:027.71:081.212:403.25:058:16First Quarter13Fri
14Sat8:324.68:117.72:251.31:454.05:078:14First Quarter14Sat
15Sun10:184.89:317.83:541.03:104.45:098:12Waxing Gibbous15Sun
16Mon11:365.310:478.25:120.24:374.15:118:09Waxing Gibbous16Mon
17Tue12:306.06:12-0.65:503.35:138:07Waxing Gibbous17Tue
18Wed1:136.67:01-1.36:512.25:158:04Full Moon18Wed
19Thu12:488.81:527.27:44-1.77:431.25:178:02Full Moon19Thu
20Fri1:388.82:287.78:23-1.88:290.55:198:00Full Moon20Fri
21Sat2:258.63:038.08:59-1.59:130.05:217:57Full Moon21Sat
22Sun3:098.23:378.19:33-0.99:56-0.15:237:55Waning Gibbous22Sun
23Mon3:517.64:118.110:060.010:380.15:257:52Waning Gibbous23Mon
24Tue4:346.94:457.910:391.111:220.65:277:50Waning Gibbous24Tue
25Wed5:186.15:207.611:132.25:297:47Third Quarter25Wed
26Thu6:065.46:007.212:091.311:48 AM3.35:317:45Third Quarter26Thu
27Fri7:074.86:486.81:042.012:304.35:337:42Third Quarter27Fri
28Sat8:454.47:546.52:202.51:275.05:357:40Third Quarter28Sat
29Sun10:424.69:156.53:592.52:565.45:377:37Waning Crescent29Sun
30Mon11:445.010:286.75:122.14:325.15:397:34Waning Crescent30Mon
31Tue12:215.46:011.55:364.45:417:32Waning 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