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

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 2h 49m at 5:05 pm (5.0 ft)
Next high tide : 11:24 pm (7.0 ft)
Sunset today : 10:58 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waxing Gibbous (80% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Oct 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:135.77:407.01:411.01:374.57:407:11Third Quarter1Wed
2Thu9:465.79:066.73:071.53:164.77:427:08Third Quarter2Thu
3Fri10:576.010:266.84:271.54:444.27:447:05Waning Crescent3Fri
4Sat11:476.511:287.05:281.35:453.47:467:03Waning Crescent4Sat
5Sun12:266.86:141.16:322.67:487:00Waning Crescent5Sun
6Mon12:177.212:577.26:520.97:101.87:506:58Waning Crescent6Mon
7Tue12:597.31:247.47:240.97:431.17:526:55New Moon7Tue
8Wed1:357.41:507.77:521.08:140.67:546:52New Moon8Wed
9Thu2:097.42:157.98:191.28:430.37:566:50New Moon9Thu
10Fri2:427.32:408.08:461.59:140.17:586:47New Moon10Fri
11Sat3:167.13:078.09:142.09:460.28:006:45Waxing Crescent11Sat
12Sun3:506.83:357.99:442.610:210.48:026:42Waxing Crescent12Sun
13Mon4:276.54:077.710:163.211:000.78:046:40Waxing Crescent13Mon
14Tue5:086.14:437.510:513.811:441.28:066:37Waxing Crescent14Tue
15Wed5:585.75:277.111:334.48:086:35First Quarter15Wed
16Thu7:015.46:256.812:381.612:305.08:106:32First Quarter16Thu
17Fri8:245.47:416.51:441.91:485.18:126:30First Quarter17Fri
18Sat9:435.79:086.63:011.83:194.78:146:27First Quarter18Sat
19Sun10:406.310:256.94:121.44:363.68:176:25Waxing Gibbous19Sun
20Mon11:267.111:307.45:090.95:372.18:196:23Waxing Gibbous20Mon
21Tue12:087.95:590.46:300.68:216:20Waxing Gibbous21Tue
22Wed12:267.812:488.66:450.27:18-0.78:236:18Full Moon22Wed
23Thu1:188.11:289.27:280.18:04-1.88:256:15Full Moon23Thu
24Fri2:088.22:089.68:100.48:50-2.38:276:13Full Moon24Fri
25Sat2:578.12:499.78:520.99:36-2.48:296:11Waning Gibbous25Sat
26Sun2:467.82:319.58:351.69:23-1.97:315:09Waning Gibbous26Sun
27Mon3:387.33:159.09:202.510:13-1.17:335:06Waning Gibbous27Mon
28Tue4:336.84:048.310:093.411:07-0.17:355:04Third Quarter28Tue
29Wed5:366.34:597.511:064.27:375:02Third Quarter29Wed
30Thu6:506.06:066.812:080.912:194.87:405:00Third Quarter30Thu
31Fri8:116.17:306.31:231.62:004.87:424:57Third Quarter31Fri
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 8:14 pm — 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 80% 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 Waxing Gibbous (80% 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