55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

53°
H 55°
L 51°
SSW
2mph
Low tide
10:53 am

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

TIDE TIMES for Monday, September 14, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 3h 11m at 10:53 am (1.4 ft)
Next high tide : 4:52 pm (8.2 ft)
Sunset today : 8:56 pm
Sunrise tomorrow : 8:07 am
Moon phase : Waxing Crescent (15% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - May 1889

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:318.13:256.49:18-1.19:082.24:518:16New Moon1Wed
2Thu2:598.04:026.29:51-0.99:382.84:498:18Waxing Crescent2Thu
3Fri3:297.84:395.910:25-0.610:103.34:468:20Waxing Crescent3Fri
4Sat4:007.65:205.511:02-0.110:463.94:448:22Waxing Crescent4Sat
5Sun4:367.26:085.211:440.411:274.44:428:24Waxing Crescent5Sun
6Mon5:186.87:064.912:330.94:408:26First Quarter6Mon
7Tue6:096.38:194.912:204.81:311.34:388:27First Quarter7Tue
8Wed7:165.99:295.21:335.02:371.54:368:29First Quarter8Wed
9Thu8:385.710:215.73:034.63:431.44:348:31First Quarter9Thu
10Fri9:585.711:026.34:223.64:381.14:328:33Waxing Gibbous10Fri
11Sat11:056.011:407.15:222.35:270.94:308:35Waxing Gibbous11Sat
12Sun12:046.46:120.86:110.84:288:37Waxing Gibbous12Sun
13Mon12:187.812:576.76:58-0.66:550.84:268:39Full Moon13Mon
14Tue12:568.51:486.97:43-1.87:371.04:248:41Full Moon14Tue
15Wed1:359.12:377.08:28-2.78:201.34:228:43Full Moon15Wed
16Thu2:169.43:267.09:14-3.19:041.74:218:44Waning Gibbous16Thu
17Fri2:599.44:186.810:01-3.19:502.24:198:46Waning Gibbous17Fri
18Sat3:459.25:136.510:51-2.610:402.84:178:48Waning Gibbous18Sat
19Sun4:358.66:126.211:44-1.911:373.44:158:50Waning Gibbous19Sun
20Mon5:317.97:176.012:42-1.04:148:52Third Quarter20Mon
21Tue6:347.08:276.012:453.81:46-0.24:128:53Third Quarter21Tue
22Wed7:506.39:346.22:123.82:550.54:118:55Third Quarter22Wed
23Thu9:165.810:296.63:463.34:000.94:098:57Waning Crescent23Thu
24Fri10:355.711:147.04:592.34:551.24:088:58Waning Crescent24Fri
25Sat11:415.711:527.35:551.35:421.64:069:00Waning Crescent25Sat
26Sun12:355.86:410.46:231.94:059:01Waning Crescent26Sun
27Mon12:267.61:225.97:21-0.37:002.24:049:03New Moon27Mon
28Tue12:587.92:026.07:56-0.87:342.54:029:04New Moon28Tue
29Wed1:288.02:406.18:28-1.18:072.84:019:06New Moon29Wed
30Thu1:598.13:166.19:00-1.28:403.14:009:07New Moon30Thu
31Fri2:308.13:526.09:33-1.19:143.43:599:09Waxing Crescent31Fri
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 15% 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 Crescent (15% 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