55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

43°
H -°
L 40°
N
4mph
High tide
12:25 am

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

TIDE TIMES for Wednesday, September 23, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 7:26 am (0.9 ft)
Next high tide : in 1h 44m at 12:25 am (6.9 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 8:22 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Aug 1875

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:179.12:446.68:28-2.38:112.64:418:44New Moon1Sun
2Mon2:069.13:226.99:08-2.38:592.04:438:42New Moon2Mon
3Tue2:518.83:577.19:44-2.09:441.74:458:40Waxing Crescent3Tue
4Wed3:348.24:317.110:18-1.410:281.54:478:38Waxing Crescent4Wed
5Thu4:167.55:037.110:50-0.511:121.64:488:36Waxing Crescent5Thu
6Fri4:586.75:357.011:220.511:581.84:508:34Waxing Crescent6Fri
7Sat5:425.96:086.911:531.74:528:31First Quarter7Sat
8Sun6:325.16:466.812:492.112:262.84:548:29First Quarter8Sun
9Mon7:374.57:316.71:502.41:053.94:568:27First Quarter9Mon
10Tue9:214.28:316.63:112.51:584.84:588:25First Quarter10Tue
11Wed11:194.49:416.74:392.23:165.35:008:23Waxing Gibbous11Wed
12Thu12:244.85:451.64:395.35:028:20Waxing Gibbous12Thu
13Fri1:035.26:350.95:464.95:048:18Waxing Gibbous13Fri
14Sat1:345.67:140.26:374.35:068:16Waxing Gibbous14Sat
15Sun12:307.92:026.07:47-0.57:213.55:088:13Full Moon15Sun
16Mon1:128.22:296.48:18-1.18:012.75:108:11Full Moon16Mon
17Tue1:528.42:566.88:47-1.48:402.05:128:09Full Moon17Tue
18Wed2:318.33:247.19:17-1.49:201.35:148:06Waning Gibbous18Wed
19Thu3:108.13:547.59:47-1.110:010.85:168:04Waning Gibbous19Thu
20Fri3:527.64:267.810:19-0.510:470.55:188:01Waning Gibbous20Fri
21Sat4:377.05:018.010:530.411:360.55:197:59Waning Gibbous21Sat
22Sun5:276.25:418.011:301.65:217:57Third Quarter22Sun
23Mon6:275.46:297.912:330.712:122.85:237:54Third Quarter23Mon
24Tue7:484.87:297.81:421.01:054.05:257:52Third Quarter24Tue
25Wed9:434.78:477.73:101.12:214.85:277:49Waning Crescent25Wed
26Thu11:215.110:107.84:410.63:575.05:297:47Waning Crescent26Thu
27Fri12:225.65:510.05:234.45:317:44Waning Crescent27Fri
28Sat1:066.26:46-0.76:283.55:337:42Waning Crescent28Sat
29Sun12:228.41:436.77:30-1.27:212.55:357:39New Moon29Sun
30Mon1:138.62:167.18:07-1.48:051.75:377:37New Moon30Mon
31Tue1:578.52:477.48:41-1.38:461.05:397:34New Moon31Tue
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 spring phase. Tonight's moon is 85% 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 maximum.

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 Gibbous (85% illuminated). This places Chiachi Island (East Side), AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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