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

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 3h 31m at 9:18 pm (3.2 ft)
Next high tide (tomorrow) : 3:08 am (8.1 ft)
Sunset today : 10:48 pm
Sunrise tomorrow : 6:36 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jul 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:495.07:386.41:183.11:092.14:5510:24Third Quarter1Tue
2Wed7:574.68:296.62:262.91:572.94:5610:24Third Quarter2Wed
3Thu9:234.39:246.93:422.52:543.54:5710:23Waning Crescent3Thu
4Fri10:484.510:187.24:501.83:573.84:5810:22Waning Crescent4Fri
5Sat11:564.811:107.75:450.94:593.94:5910:22Waning Crescent5Sat
6Sun12:495.36:33-0.15:563.75:0010:21Waning Crescent6Sun
7Mon1:335.87:17-1.06:483.25:0110:20New Moon7Mon
8Tue12:478.62:136.27:58-1.87:382.75:0210:19New Moon8Tue
9Wed1:348.92:526.68:37-2.38:262.25:0410:19New Moon9Wed
10Thu2:209.03:317.09:17-2.69:131.75:0510:18Waxing Crescent10Thu
11Fri3:068.84:117.39:56-2.510:021.35:0610:17Waxing Crescent11Fri
12Sat3:538.44:537.510:37-2.110:541.15:0710:15Waxing Crescent12Sat
13Sun4:437.75:367.611:18-1.311:511.15:0910:14Waxing Crescent13Sun
14Mon5:386.86:237.712:02-0.25:1010:13First Quarter14Mon
15Tue6:396.07:147.712:541.212:491.05:1210:12First Quarter15Tue
16Wed7:535.28:137.72:071.21:442.15:1310:11First Quarter16Wed
17Thu9:254.99:187.73:301.02:493.15:1510:09Waxing Gibbous17Thu
18Fri10:565.010:227.84:480.64:023.65:1610:08Waxing Gibbous18Fri
19Sat12:085.35:530.05:133.75:1810:06Waxing Gibbous19Sat
20Sun1:035.76:46-0.66:153.55:1910:05Waxing Gibbous20Sun
21Mon12:158.21:466.17:31-1.07:073.25:2110:03Full Moon21Mon
22Tue1:028.32:236.48:10-1.27:522.85:2310:02Full Moon22Tue
23Wed1:448.32:556.68:43-1.38:312.55:2410:00Full Moon23Wed
24Thu2:218.13:256.79:14-1.29:082.25:269:59Full Moon24Thu
25Fri2:577.93:546.89:43-0.99:442.15:289:57Waning Gibbous25Fri
26Sat3:327.54:236.810:12-0.510:212.05:309:55Waning Gibbous26Sat
27Sun4:077.04:526.810:400.111:002.15:319:53Waning Gibbous27Sun
28Mon4:446.45:236.811:100.811:422.25:339:52Waning Gibbous28Mon
29Tue5:235.85:586.811:421.65:359:50Third Quarter29Tue
30Wed6:095.26:386.812:302.412:182.55:379:48Third Quarter30Wed
31Thu7:084.77:286.81:282.61:013.35:399:46Third Quarter31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

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

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What time does the tide turn (slack tide) in Chiachi Island (East Side), AK today?

Slack tide in Chiachi Island (East Side), AK is approximately 12:13 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 100% 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 Full Moon (100% 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