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 3h 22m 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 - Mar 1884

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:238.64:507.110:54-0.410:580.67:256:12Waxing Crescent1Sat
2Sun5:058.55:436.411:46-0.111:421.77:226:14First Quarter2Sun
3Mon5:528.26:465.712:450.57:206:17First Quarter3Mon
4Tue6:487.88:115.212:332.71:581.07:176:19First Quarter4Tue
5Wed7:597.49:545.21:403.73:271.17:156:21First Quarter5Wed
6Thu9:227.311:155.63:084.14:500.87:126:23Waxing Gibbous6Thu
7Fri10:417.44:423.85:530.27:106:25Waxing Gibbous7Fri
8Sat12:116.211:46 AM7.65:543.06:43-0.27:076:27Waxing Gibbous8Sat
9Sun12:556.812:397.86:482.17:24-0.57:056:29Waxing Gibbous9Sun
10Mon1:317.21:257.97:341.37:59-0.67:026:31Full Moon10Mon
11Tue2:047.62:057.98:130.78:31-0.56:596:33Full Moon11Tue
12Wed2:347.82:427.78:490.39:01-0.16:576:35Full Moon12Wed
13Thu3:027.93:177.49:230.19:290.46:546:37Waning Gibbous13Thu
14Fri3:307.93:527.09:560.19:581.06:526:39Waning Gibbous14Fri
15Sat3:587.84:276.510:310.410:281.76:496:41Waning Gibbous15Sat
16Sun4:287.65:046.011:070.811:002.56:466:43Waning Gibbous16Sun
17Mon5:017.35:465.411:481.311:343.26:446:45Third Quarter17Mon
18Tue5:397.06:384.912:371.96:416:47Third Quarter18Tue
19Wed6:256.67:524.612:174.01:382.36:386:49Third Quarter19Wed
20Thu7:286.39:334.61:154.62:582.46:366:51Third Quarter20Thu
21Fri8:486.210:495.02:394.84:192.16:336:53Third Quarter21Fri
22Sat10:066.411:375.64:084.45:181.46:316:55Waning Crescent22Sat
23Sun11:116.85:183.56:040.76:286:58Waning Crescent23Sun
24Mon12:156.312:057.26:122.36:440.16:257:00Waning Crescent24Mon
25Tue12:507.012:547.66:581.17:22-0.46:237:02New Moon25Tue
26Wed1:257.71:397.97:42-0.17:59-0.66:207:04New Moon26Wed
27Thu2:008.32:248.08:25-1.18:37-0.56:177:06New Moon27Thu
28Fri2:368.83:097.99:08-1.79:16-0.26:157:08Waxing Crescent28Fri
29Sat3:159.03:567.59:53-2.09:560.56:127:10Waxing Crescent29Sat
30Sun3:569.04:467.010:40-1.810:391.36:107:12Waxing Crescent30Sun
31Mon4:408.75:416.411:31-1.211:272.26:077:14Waxing Crescent31Mon
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 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