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 09m 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 - Apr 1881

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:148.74:046.89:58-1.39:511.76:057:15Waxing Crescent1Fri
2Sat3:488.44:456.310:38-0.810:262.56:027:17Waxing Crescent2Sat
3Sun4:238.05:295.711:190.011:023.36:007:19Waxing Crescent3Sun
4Mon5:027.56:195.212:050.85:577:21First Quarter4Mon
5Tue5:456.97:244.812:591.65:557:23First Quarter5Tue
6Wed6:406.38:564.712:364.72:082.15:527:25First Quarter6Wed
7Thu7:535.910:164.91:535.03:322.35:497:27First Quarter7Thu
8Fri9:205.711:055.33:394.74:382.05:477:29Waxing Gibbous8Fri
9Sat10:345.811:395.94:583.95:251.75:447:31Waxing Gibbous9Sat
10Sun11:326.15:492.86:031.45:427:33Waxing Gibbous10Sun
11Mon12:106.512:206.46:311.76:361.25:397:35Waxing Gibbous11Mon
12Tue12:397.01:036.67:080.67:091.15:377:37Full Moon12Tue
13Wed1:087.61:446.87:44-0.37:421.25:347:39Full Moon13Wed
14Thu1:398.12:236.98:20-1.18:161.35:327:41Full Moon14Thu
15Fri2:118.53:046.98:58-1.68:511.65:297:43Full Moon15Fri
16Sat2:468.83:466.79:38-1.89:292.05:277:45Waning Gibbous16Sat
17Sun3:248.84:326.410:21-1.710:092.55:247:47Waning Gibbous17Sun
18Mon4:068.65:246.011:09-1.310:553.05:227:49Waning Gibbous18Mon
19Tue4:548.26:235.712:02-0.85:197:51Third Quarter19Tue
20Wed5:507.67:335.51:03-0.15:177:53Third Quarter20Wed
21Thu6:596.98:505.71:023.82:130.45:147:55Third Quarter21Thu
22Fri8:236.49:586.12:313.73:270.65:127:57Third Quarter22Fri
23Sat9:506.310:526.74:042.94:320.75:097:59Waning Crescent23Sat
24Sun11:066.311:387.45:171.65:260.85:078:01Waning Crescent24Sun
25Mon12:096.56:140.46:140.95:058:03Waning Crescent25Mon
26Tue12:197.91:026.77:02-0.76:571.15:028:05New Moon26Tue
27Wed12:578.31:506.77:45-1.47:361.45:008:07New Moon27Wed
28Thu1:338.62:336.78:25-1.78:141.84:588:10New Moon28Thu
29Fri2:088.63:146.69:03-1.88:502.24:558:12New Moon29Fri
30Sat2:438.53:536.49:39-1.59:252.74:538:14Waxing Crescent30Sat
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