55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

55°
H -°
L 48°
SW
12mph
High tide
8:04 pm

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

TIDE TIMES for Friday, September 4, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : 3:47 am (1.2 ft)
Next high tide : in 1h 06m at 8:04 pm (7.7 ft)
Sunset today : 9:22 pm
Sunrise tomorrow : 7:47 am
Moon phase : Third Quarter (44% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Oct 1906

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:067.912:387.86:360.06:530.76:386:13Full Moon1Mon
2Tue12:487.91:088.07:090.27:290.26:406:11Full Moon2Tue
3Wed1:267.81:378.17:400.68:030.06:426:08Full Moon3Wed
4Thu2:027.52:058.18:091.18:360.06:446:06Waning Gibbous4Thu
5Fri2:387.22:338.08:391.89:100.26:466:03Waning Gibbous5Fri
6Sat3:146.73:027.79:092.59:460.66:486:00Waning Gibbous6Sat
7Sun3:536.33:347.49:413.310:261.26:505:58Waning Gibbous7Sun
8Mon4:365.84:127.110:174.111:131.86:525:55Third Quarter8Mon
9Tue5:295.34:586.711:014.86:545:53Third Quarter9Tue
10Wed6:435.15:596.312:102.412:015.36:565:50Third Quarter10Wed
11Thu8:195.17:206.21:242.61:275.56:585:48Third Quarter11Thu
12Fri9:305.58:436.32:452.43:005.07:005:45Waning Crescent12Fri
13Sat10:156.19:496.73:481.94:064.07:025:43Waning Crescent13Sat
14Sun10:516.710:447.24:361.34:562.77:045:40Waning Crescent14Sun
15Mon11:257.411:337.65:170.85:401.47:065:38Waning Crescent15Mon
16Tue11:598.05:560.46:220.27:085:35New Moon16Tue
17Wed12:197.912:338.66:340.37:04-0.97:105:33New Moon17Wed
18Thu1:058.11:099.17:120.47:47-1.67:125:30New Moon18Thu
19Fri1:508.01:479.47:510.78:31-2.07:145:28Waxing Crescent19Fri
20Sat2:387.82:279.48:311.49:17-1.87:165:25Waxing Crescent20Sat
21Sun3:287.33:119.19:152.210:08-1.37:195:23Waxing Crescent21Sun
22Mon4:246.84:008.610:033.111:04-0.57:215:20First Quarter22Mon
23Tue5:286.34:587.911:003.97:235:18First Quarter23Tue
24Wed6:456.06:087.212:090.412:124.67:255:16First Quarter24Wed
25Thu8:116.17:366.81:281.01:494.67:275:13First Quarter25Thu
26Fri9:226.59:036.72:491.33:243.97:295:11Waxing Gibbous26Fri
27Sat10:157.010:136.83:541.24:302.97:315:09Waxing Gibbous27Sat
28Sun10:577.411:097.04:451.25:201.87:335:06Waxing Gibbous28Sun
29Mon11:327.811:567.15:281.26:030.97:355:04Waxing Gibbous29Mon
30Tue12:048.16:041.46:390.37:375:02Full Moon30Tue
31Wed12:377.212:338.36:371.67:12-0.27:405:00Full Moon31Wed
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 44% 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 Third Quarter (44% 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