55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

53°
H 55°
L 47°
SW
9mph
Low tide
11:23 am

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

TIDE TIMES for Tuesday, September 15, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 3h 48m at 11:23 am (2.4 ft)
Next high tide : 5:22 pm (7.9 ft)
Sunset today : 8:53 pm
Sunrise tomorrow : 8:09 am
Moon phase : Waxing Crescent (23% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Mar 1887

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:457.16:175.312:302.07:276:11First Quarter1Tue
2Wed6:297.07:254.812:153.21:312.27:246:13First Quarter2Wed
3Thu7:266.99:044.61:064.02:482.27:226:15First Quarter3Thu
4Fri8:396.910:434.92:204.54:121.67:196:17Waxing Gibbous4Fri
5Sat9:577.211:475.53:484.55:220.77:176:19Waxing Gibbous5Sat
6Sun11:067.85:063.96:17-0.37:146:21Waxing Gibbous6Sun
7Mon12:346.312:068.36:092.97:03-1.27:126:23Waxing Gibbous7Mon
8Tue1:157.012:598.87:041.77:46-1.97:096:25Full Moon8Tue
9Wed1:547.71:499.07:530.58:26-2.17:066:27Full Moon9Wed
10Thu2:328.22:378.98:41-0.59:06-2.07:046:30Full Moon10Thu
11Fri3:108.63:258.69:27-1.09:45-1.47:016:32Waning Gibbous11Fri
12Sat3:498.84:138.010:14-1.210:25-0.56:596:34Waning Gibbous12Sat
13Sun4:308.75:037.211:03-0.911:060.76:566:36Waning Gibbous13Sun
14Mon5:138.45:586.311:56-0.311:501.96:536:38Third Quarter14Mon
15Tue5:597.97:035.612:550.56:516:40Third Quarter15Tue
16Wed6:537.38:305.112:413.22:101.26:486:42Third Quarter16Wed
17Thu8:026.810:135.11:474.23:411.56:466:44Third Quarter17Thu
18Fri9:266.611:285.53:224.65:001.36:436:46Waning Crescent18Fri
19Sat10:436.74:554.45:581.06:406:48Waning Crescent19Sat
20Sun12:185.911:43 AM6.95:593.76:420.66:386:50Waning Crescent20Sun
21Mon12:556.312:317.16:452.97:180.36:356:52Waning Crescent21Mon
22Tue1:256.61:107.37:232.27:480.16:326:54New Moon22Tue
23Wed1:516.91:467.47:561.58:150.16:306:56New Moon23Wed
24Thu2:157.22:197.48:260.98:410.26:276:58New Moon24Thu
25Fri2:407.42:517.38:570.59:070.46:257:00New Moon25Fri
26Sat3:057.63:247.09:280.29:340.96:227:02Waxing Crescent26Sat
27Sun3:317.73:576.710:000.210:031.46:197:04Waxing Crescent27Sun
28Mon3:597.64:346.310:360.310:332.16:177:06Waxing Crescent28Mon
29Tue4:307.55:145.811:160.511:072.86:147:08Waxing Crescent29Tue
30Wed5:067.46:045.312:020.96:117:10First Quarter30Wed
31Thu5:517.17:095.012:581.26:097:12First Quarter31Thu
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 23% 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 Waxing Crescent (23% 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