55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

53°
H 54°
L 49°
SW
10mph
High tide
5:55 pm

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

TIDE TIMES for Wednesday, September 16, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : 12:58 am (1.4 ft)
Next high tide : in 2h 41m at 5:55 pm (7.6 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 8:11 am
Moon phase : First Quarter (31% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Feb 1884

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:547.94:567.211:091.211:210.28:315:10Waxing Crescent1Fri
2Sat5:348.05:486.412:021.38:295:12First Quarter2Sat
3Sun6:217.96:525.712:041.21:041.58:275:14First Quarter3Sun
4Mon7:167.88:165.112:532.32:201.68:255:16First Quarter4Mon
5Tue8:237.810:005.11:563.33:481.38:235:18First Quarter5Tue
6Wed9:387.911:275.53:153.95:080.68:215:21Waxing Gibbous6Wed
7Thu10:498.14:383.96:11-0.28:195:23Waxing Gibbous7Thu
8Fri12:296.111:52 AM8.55:513.47:02-0.98:175:25Waxing Gibbous8Fri
9Sat1:176.712:468.76:512.87:45-1.48:145:27Full Moon9Sat
10Sun1:577.11:338.87:412.18:23-1.68:125:29Full Moon10Sun
11Mon2:337.52:168.78:251.58:58-1.58:105:31Full Moon11Mon
12Tue3:077.72:568.49:051.29:31-1.18:085:34Full Moon12Tue
13Wed3:397.83:348.09:441.010:02-0.58:065:36Waning Gibbous13Wed
14Thu4:107.84:117.410:221.110:320.28:035:38Waning Gibbous14Thu
15Fri4:417.64:486.711:001.411:031.18:015:40Waning Gibbous15Fri
16Sat5:137.45:286.011:411.811:352.17:595:42Waning Gibbous16Sat
17Sun5:477.26:135.312:282.37:575:45Third Quarter17Sun
18Mon6:276.97:124.712:113.01:252.77:545:47Third Quarter18Mon
19Tue7:186.78:434.412:543.92:422.97:525:49Third Quarter19Tue
20Wed8:246.510:364.51:554.64:162.67:505:51Third Quarter20Wed
21Thu9:406.611:455.03:184.95:242.07:475:53Waning Crescent21Thu
22Fri10:477.04:414.76:121.17:455:55Waning Crescent22Fri
23Sat12:285.511:42 AM7.45:454.06:510.37:425:57Waning Crescent23Sat
24Sun1:026.112:307.96:353.27:25-0.47:406:00Waning Crescent24Sun
25Mon1:336.71:138.27:202.27:58-0.97:376:02New Moon25Mon
26Tue2:047.31:558.48:011.38:31-1.27:356:04New Moon26Tue
27Wed2:367.82:368.48:420.49:06-1.27:336:06New Moon27Wed
28Thu3:108.23:188.29:23-0.29:41-0.97:306:08Waxing Crescent28Thu
29Fri3:458.54:027.810:07-0.510:18-0.37:286:10Waxing Crescent29Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

Common Questions About Chiachi Island (East Side), AK Tides

Collapse All
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 31% 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 First Quarter (31% 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