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 1h 48m 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 - May 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:247.16:595.512:300.45:529:14Third Quarter1Thu
2Fri6:176.48:045.312:274.11:261.25:509:16Third Quarter2Fri
3Sat7:215.79:115.41:394.32:301.85:489:18Third Quarter3Sat
4Sun8:415.310:065.73:134.13:352.15:469:20Third Quarter4Sun
5Mon10:025.210:496.14:323.34:302.25:449:22Waning Crescent5Mon
6Tue11:085.311:256.65:272.45:162.35:419:24Waning Crescent6Tue
7Wed12:015.66:111.55:552.35:399:26Waning Crescent7Wed
8Thu12:475.86:490.66:322.35:379:27Waning Crescent8Thu
9Fri12:317.51:286.17:24-0.27:082.35:359:29New Moon9Fri
10Sat1:047.92:066.27:58-0.87:432.45:339:31New Moon10Sat
11Sun1:388.22:446.38:33-1.38:192.55:319:33New Moon11Sun
12Mon2:128.43:236.39:10-1.68:562.65:299:35New Moon12Mon
13Tue2:488.54:046.29:48-1.79:352.85:279:37Waxing Crescent13Tue
14Wed3:278.44:476.110:29-1.610:193.05:259:39Waxing Crescent14Wed
15Thu4:108.15:356.011:14-1.311:093.25:249:41Waxing Crescent15Thu
16Fri4:597.66:286.012:02-0.85:229:43First Quarter16Fri
17Sat5:567.07:266.112:083.312:55-0.25:209:44First Quarter17Sat
18Sun7:046.38:286.31:203.21:540.45:189:46First Quarter18Sun
19Mon8:255.99:286.82:432.72:580.95:179:48First Quarter19Mon
20Tue9:505.710:237.44:051.74:011.35:159:50Waxing Gibbous20Tue
21Wed11:075.811:138.05:140.54:591.65:139:52Waxing Gibbous21Wed
22Thu12:136.16:12-0.75:531.85:129:53Waxing Gibbous22Thu
23Fri12:008.51:106.37:03-1.66:441.95:109:55Full Moon23Fri
24Sat12:468.82:006.57:49-2.27:322.15:099:57Full Moon24Sat
25Sun1:299.02:476.68:33-2.48:162.35:079:58Full Moon25Sun
26Mon2:118.93:316.69:15-2.48:592.55:0610:00Full Moon26Mon
27Tue2:528.74:146.59:55-2.09:422.85:0510:01Waning Gibbous27Tue
28Wed3:338.24:576.310:35-1.510:253.15:0310:03Waning Gibbous28Wed
29Thu4:147.75:396.111:14-0.811:113.45:0210:04Waning Gibbous29Thu
30Fri4:577.06:235.911:550.05:0110:06Waning Gibbous30Fri
31Sat5:436.37:095.812:023.612:370.75:0010:07Third Quarter31Sat
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