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

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 6:15 pm (5.0 ft)
Next high tide : in 5h 11m at 1:47 pm (4.9 ft)
Sunset today : 10:56 pm
Sunrise tomorrow : 6:29 am
Moon phase : Waxing Gibbous (87% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jun 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:456.37:195.612:054.012:440.94:5910:09First Quarter1Fri
2Sat6:395.78:145.61:054.11:331.44:5810:10First Quarter2Sat
3Sun7:465.29:085.92:194.02:281.94:5710:11First Quarter3Sun
4Mon9:044.99:576.33:403.53:252.24:5610:13First Quarter4Mon
5Tue10:195.010:416.74:452.64:192.44:5510:14Waxing Gibbous5Tue
6Wed11:245.211:227.35:371.65:092.44:5410:15Waxing Gibbous6Wed
7Thu12:195.66:210.55:562.44:5310:16Waxing Gibbous7Thu
8Fri12:027.81:085.97:03-0.56:422.44:5310:17Full Moon8Fri
9Sat12:428.31:536.37:43-1.47:262.34:5210:18Full Moon9Sat
10Sun1:238.72:376.58:24-2.18:102.24:5210:19Full Moon10Sun
11Mon2:059.03:216.79:06-2.58:542.24:5110:20Full Moon11Mon
12Tue2:489.04:066.79:48-2.79:412.34:5110:21Waning Gibbous12Tue
13Wed3:338.84:546.710:33-2.510:312.44:5010:21Waning Gibbous13Wed
14Thu4:228.35:436.711:20-2.011:272.54:5010:22Waning Gibbous14Thu
15Fri5:157.76:366.712:09-1.34:5010:23Third Quarter15Fri
16Sat6:156.97:336.812:302.61:02-0.44:5010:23Third Quarter16Sat
17Sun7:256.18:337.01:442.52:000.44:5010:24Third Quarter17Sun
18Mon8:475.69:337.33:072.13:031.24:5010:24Third Quarter18Mon
19Tue10:125.410:287.64:261.34:061.84:5010:25Waning Crescent19Tue
20Wed11:275.511:198.05:310.45:052.24:5010:25Waning Crescent20Wed
21Thu12:305.76:26-0.46:002.54:5010:25Waning Crescent21Thu
22Fri12:058.21:236.07:13-1.06:492.64:5010:25New Moon22Fri
23Sat12:498.42:086.27:55-1.47:342.74:5110:25New Moon23Sat
24Sun1:298.42:496.38:34-1.68:152.84:5110:26New Moon24Sun
25Mon2:078.43:266.49:09-1.68:542.94:5110:26New Moon25Mon
26Tue2:448.24:026.39:43-1.49:323.04:5210:25Waxing Crescent26Tue
27Wed3:207.94:376.310:17-1.110:103.14:5210:25Waxing Crescent27Wed
28Thu3:567.55:136.210:51-0.610:513.24:5310:25Waxing Crescent28Thu
29Fri4:347.05:496.111:25-0.111:363.44:5410:25Waxing Crescent29Fri
30Sat5:156.46:286.012:020.54:5510:24First Quarter30Sat
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 4:01 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 87% 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 (87% 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