55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

54°
H -°
L 53°
SSE
8mph
Low tide
2:20 am

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

TIDE TIMES for Friday, September 4, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 2h 03m at 2:20 am (1.0 ft)
Next high tide : 8:32 am (4.8 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 - Aug 1912

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:327.53:326.59:19-0.69:222.44:418:43Waning Gibbous1Thu
2Fri3:077.03:596.69:47-0.110:022.24:438:41Waning Gibbous2Fri
3Sat3:446.54:296.810:160.610:472.24:448:39Waning Gibbous3Sat
4Sun4:275.95:026.910:471.511:382.14:468:37Third Quarter4Sun
5Mon5:185.25:427.111:222.44:488:35Third Quarter5Mon
6Tue6:254.76:337.312:412.012:063.44:508:33Third Quarter6Tue
7Wed8:024.47:387.51:581.71:084.34:528:31Third Quarter7Wed
8Thu9:504.68:507.83:211.12:294.74:548:29Waning Crescent8Thu
9Fri11:075.110:008.44:340.13:504.64:568:27Waning Crescent9Fri
10Sat12:005.75:34-0.95:013.94:588:24Waning Crescent10Sat
11Sun12:436.36:24-1.86:023.05:008:22New Moon11Sun
12Mon12:009.31:226.87:09-2.56:562.05:028:20New Moon12Mon
13Tue12:529.42:007.37:50-2.77:471.15:048:18New Moon13Tue
14Wed1:429.22:377.78:28-2.58:360.55:068:15Waxing Crescent14Wed
15Thu2:308.73:157.99:06-1.89:250.25:088:13Waxing Crescent15Thu
16Fri3:187.93:538.09:43-0.810:150.25:108:11Waxing Crescent16Fri
17Sat4:087.04:317.910:200.411:090.65:118:08First Quarter17Sat
18Sun5:016.05:127.710:581.85:138:06First Quarter18Sun
19Mon6:045.25:597.312:081.111:39 AM3.25:158:03First Quarter19Mon
20Tue7:334.66:567.01:231.712:304.45:178:01First Quarter20Tue
21Wed9:314.68:106.82:541.81:455.25:197:59Waxing Gibbous21Wed
22Thu10:544.99:266.94:131.53:225.45:217:56Waxing Gibbous22Thu
23Fri11:435.310:287.25:121.14:375.15:237:54Waxing Gibbous23Fri
24Sat12:185.75:570.65:304.45:257:51Waxing Gibbous24Sat
25Sun12:466.06:320.16:103.75:277:49Full Moon25Sun
26Mon1:106.37:02-0.26:453.05:297:46Full Moon26Mon
27Tue12:347.91:346.67:28-0.57:182.35:317:44Full Moon27Tue
28Wed1:087.91:576.97:52-0.57:511.85:337:41Full Moon28Wed
29Thu1:417.72:207.18:17-0.38:241.35:357:39Waning Gibbous29Thu
30Fri2:157.42:447.38:420.18:591.05:377:36Waning Gibbous30Fri
31Sat2:497.03:107.59:080.79:360.95:397:33Waning Gibbous31Sat
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