55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

40°
H 47°
L 39°
WSW
6mph
Low tide
9:48 am

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

TIDE TIMES for Monday, October 12, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 3h 27m at 9:48 am (2.2 ft)
Next high tide : 3:41 pm (8.6 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 9:02 am
Moon phase : Waxing Crescent (5% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jun 1840

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:019.73:366.59:14-3.38:542.83:599:08New Moon1Mon
2Tue2:519.54:276.510:03-3.19:462.93:589:10Waxing Crescent2Tue
3Wed3:419.15:186.410:52-2.610:413.13:579:11Waxing Crescent3Wed
4Thu4:348.46:106.311:42-1.811:423.23:569:12Waxing Crescent4Thu
5Fri5:307.57:046.312:32-0.93:559:14Waxing Crescent5Fri
6Sat6:316.57:586.412:513.21:230.13:549:15First Quarter6Sat
7Sun7:405.68:526.52:113.02:161.03:549:16First Quarter7Sun
8Mon9:025.09:416.73:342.43:101.93:539:17First Quarter8Mon
9Tue10:244.810:257.04:431.74:032.63:529:18First Quarter9Tue
10Wed11:364.811:067.35:390.94:533.23:529:19Waxing Gibbous10Wed
11Thu12:355.16:260.25:403.63:519:20Waxing Gibbous11Thu
12Fri1:245.37:08-0.36:243.93:519:21Waxing Gibbous12Fri
13Sat12:227.82:045.57:45-0.67:054.03:509:21Waxing Gibbous13Sat
14Sun12:597.92:415.78:20-0.97:444.03:509:22Full Moon14Sun
15Mon1:368.13:165.78:53-1.08:214.03:509:23Full Moon15Mon
16Tue2:128.13:505.89:27-1.18:593.93:509:23Full Moon16Tue
17Wed2:488.04:245.810:00-1.19:373.83:509:24Full Moon17Wed
18Thu3:247.84:595.810:34-1.010:183.73:509:24Waning Gibbous18Thu
19Fri4:027.45:345.811:09-0.811:033.63:509:25Waning Gibbous19Fri
20Sat4:446.96:115.911:45-0.411:553.43:509:25Waning Gibbous20Sat
21Sun5:316.36:506.212:240.13:509:25Waning Gibbous21Sun
22Mon6:275.77:346.512:553.11:060.93:509:26Third Quarter22Mon
23Tue7:375.18:237.02:042.61:541.73:509:26Third Quarter23Tue
24Wed9:024.89:167.53:191.72:502.53:519:26Third Quarter24Wed
25Thu10:314.810:118.14:310.63:523.13:519:26Waning Crescent25Thu
26Fri11:505.111:078.75:36-0.54:563.53:529:26Waning Crescent26Fri
27Sat12:565.56:35-1.55:583.53:529:26Waning Crescent27Sat
28Sun12:049.11:516.07:29-2.46:583.33:539:25Waning Crescent28Sun
29Mon12:599.52:406.38:18-2.97:543.03:539:25New Moon29Mon
30Tue1:529.63:266.69:05-3.18:472.63:549:25New Moon30Tue
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 spring phase. Tonight's moon is 5% 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 Crescent (5% 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