55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

43°
H -°
L 40°
W
8mph
High tide
6:42 pm

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

TIDE TIMES for Saturday, October 17, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : 2:19 am (2.4 ft)
Next high tide : in 1h 25m at 6:42 pm (6.7 ft)
Sunset today : 7:30 pm
Sunrise tomorrow : 9:12 am
Moon phase : First Quarter (42% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Dec 1830

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:017.62:3410.08:392.29:32-2.78:414:10Full Moon1Wed
2Thu3:507.63:199.69:262.510:18-2.28:434:09Waning Gibbous2Thu
3Fri4:397.44:069.010:152.911:04-1.48:444:08Waning Gibbous3Fri
4Sat5:307.14:558.111:073.411:52-0.48:464:07Waning Gibbous4Sat
5Sun6:236.95:497.212:063.98:474:06Waning Gibbous5Sun
6Mon7:206.76:506.412:420.61:164.28:494:06Third Quarter6Mon
7Tue8:216.68:055.71:371.62:444.18:504:05Third Quarter7Tue
8Wed9:206.79:325.42:392.44:083.58:524:05Third Quarter8Wed
9Thu10:127.010:495.43:412.95:102.78:534:04Third Quarter9Thu
10Fri10:557.311:515.64:373.35:591.98:544:04Waning Crescent10Fri
11Sat11:337.65:253.56:401.18:564:03Waning Crescent11Sat
12Sun12:405.912:098.06:073.57:150.48:574:03Waning Crescent12Sun
13Mon1:216.212:438.36:463.67:48-0.18:584:03Waning Crescent13Mon
14Tue1:586.41:178.57:233.68:20-0.58:594:03New Moon14Tue
15Wed2:326.61:508.67:593.68:51-0.89:004:03New Moon15Wed
16Thu3:076.72:248.68:353.69:24-0.99:014:03New Moon16Thu
17Fri3:416.72:598.59:113.69:58-0.99:024:03New Moon17Fri
18Sat4:176.73:358.39:503.610:34-0.79:034:03Waxing Crescent18Sat
19Sun4:556.74:157.910:323.711:13-0.49:044:03Waxing Crescent19Sun
20Mon5:366.75:017.311:213.811:560.29:044:03Waxing Crescent20Mon
21Tue6:216.85:556.712:183.89:054:04Waxing Crescent21Tue
22Wed7:126.97:016.112:430.81:263.69:054:04First Quarter22Wed
23Thu8:097.28:245.61:371.52:453.09:064:05First Quarter23Thu
24Fri9:107.69:545.62:392.24:052.09:064:05First Quarter24Fri
25Sat10:088.211:145.93:452.65:140.79:074:06Waxing Gibbous25Sat
26Sun11:038.84:502.86:13-0.59:074:07Waxing Gibbous26Sun
27Mon12:216.311:56 AM9.35:502.87:05-1.59:074:08Waxing Gibbous27Mon
28Tue1:186.812:479.76:462.77:53-2.29:074:08Waxing Gibbous28Tue
29Wed2:077.21:359.87:382.58:37-2.69:074:09Full Moon29Wed
30Thu2:537.42:219.78:272.49:20-2.59:074:10Full Moon30Thu
31Fri3:377.53:069.49:142.410:03-2.19:074:11Full Moon31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

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

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Is this week a spring tide or neap tide in Chiachi Island (East Side), AK?

Chiachi Island (East Side), AK is currently in a neap phase. Tonight's moon is 42% 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 minimum.

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 First Quarter (42% illuminated). This places Chiachi Island (East Side), AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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