55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

54°
H 56°
L 47°
SW
7mph
High tide
5:35 am

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

TIDE TIMES for Tuesday, September 15, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 11:23 am (2.4 ft)
Next high tide : in 51m at 5:35 am (6.5 ft)
Sunset today : 8:53 pm
Sunrise tomorrow : 8:09 am
Moon phase : Waxing Crescent (23% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jul 1887

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:165.411:058.25:190.24:502.33:569:24Waxing Gibbous1Fri
2Sat12:235.86:17-0.75:492.53:569:24Waxing Gibbous2Sat
3Sun1:206.17:08-1.46:432.63:579:23Full Moon3Sun
4Mon12:458.72:086.47:54-1.97:332.63:589:23Full Moon4Mon
5Tue1:308.82:516.68:36-2.18:182.63:599:22Full Moon5Tue
6Wed2:128.73:326.69:15-2.09:012.64:009:21Full Moon6Wed
7Thu2:528.54:106.69:52-1.79:422.74:029:20Waning Gibbous7Thu
8Fri3:328.14:476.510:28-1.310:242.84:039:20Waning Gibbous8Fri
9Sat4:107.55:246.411:03-0.711:073.04:049:19Waning Gibbous9Sat
10Sun4:506.96:016.311:380.011:543.24:059:18Waning Gibbous10Sun
11Mon5:336.26:406.212:150.84:079:17Third Quarter11Mon
12Tue6:215.67:236.212:463.312:551.64:089:16Third Quarter12Tue
13Wed7:205.08:126.31:493.31:402.44:099:14Third Quarter13Wed
14Thu8:364.69:056.53:033.02:343.04:119:13Third Quarter14Thu
15Fri10:024.59:586.94:172.43:343.54:129:12Waning Crescent15Fri
16Sat11:184.810:487.35:181.64:343.74:149:11Waning Crescent16Sat
17Sun12:185.26:080.75:303.64:159:09Waning Crescent17Sun
18Mon1:065.66:52-0.26:223.44:179:08Waning Crescent18Mon
19Tue12:238.21:486.07:33-1.07:113.04:189:06New Moon19Tue
20Wed1:078.62:276.48:12-1.77:572.64:209:05New Moon20Wed
21Thu1:518.93:066.88:51-2.28:422.14:229:03New Moon21Thu
22Fri2:359.03:457.09:31-2.49:281.84:239:02Waxing Crescent22Fri
23Sat3:218.84:267.210:11-2.310:171.54:259:00Waxing Crescent23Sat
24Sun4:088.35:087.410:52-1.811:091.44:278:58Waxing Crescent24Sun
25Mon4:587.65:537.411:35-1.04:288:57First Quarter25Mon
26Tue5:546.86:427.512:061.512:210.04:308:55First Quarter26Tue
27Wed6:586.07:377.51:121.51:121.24:328:53First Quarter27Wed
28Thu8:185.38:397.52:281.52:112.24:348:51First Quarter28Thu
29Fri9:505.19:447.73:521.13:203.04:368:49Waxing Gibbous29Fri
30Sat11:155.310:467.95:060.54:323.44:378:48Waxing Gibbous30Sat
31Sun12:215.76:08-0.25:393.44:398:46Waxing Gibbous31Sun
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 transitional phase. Tonight's moon is 23% 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 shifting between spring and neap.

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 Waxing Crescent (23% illuminated). This places Chiachi Island (East Side), AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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