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

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : 6:50 am (-0.6 ft)
Next high tide : in 3h 52m at 11:15 pm (8.3 ft)
Sunset today : 11:17 pm
Sunrise tomorrow : 6:06 am
Moon phase : Waning Crescent (18% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jan 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:137.21:419.87:442.58:42-2.710:065:13New Moon1Sun
2Mon2:587.62:289.78:352.29:25-2.610:065:14New Moon2Mon
3Tue3:417.73:159.39:232.010:06-2.110:055:16Waxing Crescent3Tue
4Wed4:237.84:008.610:112.110:45-1.410:055:17Waxing Crescent4Wed
5Thu5:047.74:467.811:012.311:24-0.410:045:18Waxing Crescent5Thu
6Fri5:467.55:346.811:522.610:045:20First Quarter6Fri
7Sat6:297.36:265.912:040.712:502.910:035:21First Quarter7Sat
8Sun7:157.17:305.212:451.91:593.110:025:23First Quarter8Sun
9Mon8:077.08:594.71:313.03:243.010:025:24First Quarter9Mon
10Tue9:057.010:384.72:283.94:412.510:015:26Waxing Gibbous10Tue
11Wed10:037.211:525.03:364.45:411.910:005:28Waxing Gibbous11Wed
12Thu10:567.44:444.66:281.29:595:29Waxing Gibbous12Thu
13Fri12:445.411:43 AM7.85:424.57:070.59:585:31Waxing Gibbous13Fri
14Sat1:225.812:268.16:314.27:41-0.19:575:33Full Moon14Sat
15Sun1:556.21:068.47:143.88:11-0.69:565:35Full Moon15Sun
16Mon2:256.51:438.57:523.48:41-0.99:555:37Full Moon16Mon
17Tue2:556.82:198.58:303.09:11-1.29:545:39Full Moon17Tue
18Wed3:257.02:558.49:072.69:42-1.29:525:40Waning Gibbous18Wed
19Thu3:557.23:328.19:462.310:14-0.99:515:42Waning Gibbous19Thu
20Fri4:277.44:127.710:272.110:48-0.49:505:44Waning Gibbous20Fri
21Sat5:027.54:567.111:132.011:250.39:485:46Waning Gibbous21Sat
22Sun5:417.65:476.312:062.09:475:48Third Quarter22Sun
23Mon6:267.76:495.612:071.31:072.09:455:50Third Quarter23Mon
24Tue7:197.78:125.112:552.32:221.99:445:52Third Quarter24Tue
25Wed8:247.89:535.01:563.23:481.49:425:54Third Quarter25Wed
26Thu9:368.111:225.43:113.85:060.59:405:57Waning Crescent26Thu
27Fri10:458.44:313.96:09-0.49:395:59Waning Crescent27Fri
28Sat12:266.011:48 AM8.85:433.57:02-1.39:376:01Waning Crescent28Sat
29Sun1:176.712:449.16:452.87:47-1.99:356:03New Moon29Sun
30Mon2:007.21:349.37:392.18:28-2.19:336:05New Moon30Mon
31Tue2:397.62:209.18:271.59:06-2.19:326:07New Moon31Tue
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 3:02 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 18% 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 Waning Crescent (18% 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